JP2003189756A - Method for extracting factor affecting marine ecosystem and method for controlling marine ecosystem - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To extract affectors to control the marine ecosystem and to establish a method for controlling the marine ecosystem by the extracted affectors. <P>SOLUTION: Information on one or a plurality of items exhibiting the state of the marine ecosystem is collected for a certain period of time. Whether or not the change of the item is expressed by some function is discriminated on the basis of the information. A plurality of the affectors to be expected to have some kind or another affect on the marine ecosystem are selected. Information on the discriminated items is collected while changing the state amounts of the discriminated affectors. The affectors to become parameters of a function representing the changes of the discriminated items are extracted from a plurality of the affectors on the basis of the information. A numerical expression model simulating the function is prepared by using the extracted affectors as parameters. The amounts of the extracted affectors are determined so as to direct the discriminated items in a desired direction from the numerical expression model. The affectors of the determined amounts are added to the marine ecosystem. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention realizes recycling of marine resources by utilizing the pristine ocean that is almost untouched, and further improves various factors deteriorating the global environment in the process, and increases production of marine resources. Related to technology for solving food problems.

[0002]

2. Description of the Related Art The 20th century type of social structure, which was devastated in mass production and mass consumption, is now facing a turning point with great problems. It is no doubt that the factory that continues production 24 hours a day emits a huge amount of industrial waste and carbon dioxide, and that the increasing amount of carbon dioxide in the atmosphere is a major cause of global warming. Has become.

A large amount of domestic waste and carbon dioxide are emitted in the process of consumption from urban areas that consume the produced products. Domestic waste also emits carbon dioxide in the process of being incinerated. In addition, domestic wastewater and human excrement are discharged from urban areas and dumped into rivers and coastal waters through treatment facilities. These significantly contaminate the water quality of the water area even after being subjected to purification treatment.

Furthermore, the social structure of the 20th century type creates a difference in living standards between developed and developing countries, on the one hand, excessive food is discarded without being consumed, and on the other hand, hunger and poverty are widespread. The situation of doing so continues without improvement.

In order to solve the above problems, there is no choice but to reform the conventional one-way type social structure and to construct a global circulation type social structure, and the efforts are actually made in all fields. There is.

In order to solve these problems, the present inventors sought the possibility in the ocean. The distant ocean here is located outside the continental shelf at the periphery of the land, and its water depth is deeper than that of the continental shelf, and typically refers to a sea area with a water depth of 200 m or more.

Needless to say, the earth has about 2 of its surface area.
The sea occupies / 3 of the sea, but the use of the pelagic ocean, which accounts for about 90% of the sea, has not been done at all.
As an example, the production of marine resources in the pelagic sea is only about 0.8% of the production obtained from the whole sea.

The reason why the production amount of marine resources is poor in the pelagic sea is closely related to the food chain and the water depth in the marine ecosystem. The food chain in the marine ecosystem begins with the primary production of phytoplankton by photosynthesis while taking in nitrogen, phosphorus, silicon, iron, vitamins, etc. as nutrient salts. The carnivorous zooplankton prey on the primary producer, and the carnivorous zooplankton prey on the zooplankton. Small carnivores prey on the carnivore plankton, and large carnivores prey on the small carnivores. And
When these carnivorous animals die, their bodies are broken down by tiny aquatic organisms, supplying phytoplankton with the nutrient salts that feed them.

The point here is that phytoplankton requires the above-mentioned various nutrient salts and sunlight in the process of primary production. These nutrients are abundant in the seabed because they are supplied from the seabed soil and carcasses of large and small marine organisms. Also, it is said that the sun rays reach up to a depth of about 200 m, that is, near the edge of the continental shelf, depending on the transparency of water. Therefore, primary production is actively carried out in the relatively shallow water near the continental shelf, and the marine ecosystem is maintained healthy.

However, in the pelagic ocean, which is deeper than the continental shelf, unlike the relatively shallow ocean, the deep regions rich in nutrients and the surface regions exposed to sunlight are located far apart, so in either of these, However, almost no primary production is done. Therefore, the marine ecosystem as described above is not established and fisheries resources are depleted.

The present inventors have already made the following proposals based on the knowledge of such a situation in the ocean. The proposal is to produce nutrient salts from raw materials such as industrial waste, domestic waste, domestic wastewater, excrement, etc. that are incinerated or discarded as they are, and then emit the nutrient salts into the atmosphere. Based on the generated carbon dioxide, establish a marine ecosystem in the pristine ocean that is still untouched, harvest the marine resources produced in the process of circulation of the marine ecosystem, and after consuming the marine resources The effluent is collected, and the effluent is used as a raw material to produce nutrient salts again.

[0012] According to this proposal, the emission from society is reused to reduce the amount of unilateral disposal of the emission and the emission of carbon dioxide to reduce various factors that deteriorate the global environment. Moreover, based on these, the fishery resources produced in the pelagic sea can be used to solve food problems on a global scale.

In order to realize the sustainable use of fishery resources as described above, it is very important to control the marine ecosystem in the pelagic sea. A marine ecosystem is a waste space (a nutrient salt produced from) that is constructed in an unused space in the pelagic ocean.
It is positioned as a natural factory that produces marine resources that are used as food by using carbon dioxide and carbon dioxide as raw materials, but if it can be operated intentionally, it will reduce more emissions and carbon dioxide, and This is because it is possible to produce marine resources.

[0014]

By the way, even if it says to control the marine ecosystem at once, it is difficult to realize it. Since a large number of influencing factors are intricately intertwined in a marine ecosystem, it is very difficult to identify which influencing factor enables control in this so-called complex marine ecosystem. It's difficult.

Even if the influencing factors can be identified, what behavior the marine ecosystem behaves by manipulating the influencing factors, and how to manipulate the influencing factors, the marine resources. It is even more difficult to analyze whether it is possible to induce intentional changes such as the growth of fish, purification of sea areas, and retention of carbon dioxide fixation. In a complex marine ecosystem, even if the manipulated variable of influencing factors is slightly different, it is highly expected that the changes that appear in the marine ecosystem will be greatly changed.

The present invention has been made in view of the above problems, extracts influential factors that enable control of marine ecosystem, and establishes a method of controlling marine ecosystem by the extracted influential factors. This aims to achieve sustainable use of fishery resources.

[0017]

A method for extracting a factor affecting a marine ecosystem according to the present invention according to claim 1 provides information on one or a plurality of items indicating the state of the marine ecosystem over a certain period. Based on the collected information, it is determined whether or not the change of the item can be expressed by some function, and if it is determined that it can be expressed by some function, it may have some effect on the marine ecosystem. Selecting a plurality of expected influencing factors, collecting information about the determined item while changing the state quantity of the influencing factors, based on the information, from among the plurality of influencing factors, It is characterized in that an influencing factor serving as a parameter of a function expressing the change of the determined item is extracted.

A method for controlling a marine ecosystem according to a second aspect of the present invention collects information on one or more items indicating the state of the marine ecosystem over a certain period,
Based on the information, the influencing factors that are the parameters of the function expressing the change in the item are extracted from the influencing factors that are expected to have some influence on the marine ecosystem, and the extracted factors are extracted. A mathematical model that simulates the function is created by using the influencing factors as parameters, and the amount of the extracted influencing factors is determined from the mathematical model to direct the change of the item in a desired direction, and the determined amount is determined. Is added to the marine ecosystem.

A method for controlling a marine ecosystem according to a third aspect of the present invention collects information on one or more items indicating the state of the marine ecosystem over a certain period,
Based on the information, it is determined whether the change of the item can be expressed by some function, and if it is determined that it can be expressed by some function, it is expected to have some effect on the marine ecosystem. A plurality of influencing factors are selected, information about the determined items is collected while changing the state quantity of the influencing factors, and the information is discriminated from the plurality of influencing factors based on the information. Extract the influential factors that are the parameters of the function that expresses the changes in the items
A mathematical expression model that simulates the function is created using the extracted influencing factors as parameters, and the amount of the extracted influencing factors is determined from the mathematical expression model so as to direct the change of the determined item in a desired direction. However, the influencing factor of the determined amount is added to the marine ecosystem.

A method for extracting a factor affecting an arbitrary system according to the present invention according to claim 4 provides information on one or a plurality of items indicating the state of the arbitrary system regardless of natural products or artificial products. Collect over a period of time,
Based on the information, it is determined whether or not the change of the item can be expressed by some function, and if it is determined that the change can be expressed by some function, it is expected to have some effect on the arbitrary system. A plurality of influencing factors are selected, information about the determined items is collected while changing the state quantity of the influencing factors, and the information is discriminated from the plurality of influencing factors based on the information. It is characterized by extracting the influencing factors that are the parameters of the function expressing the change of the item.

A method for controlling an arbitrary system according to a fifth aspect of the present invention collects information about one or a plurality of items indicating the state of an arbitrary system regardless of whether it is a natural product or an artificial product over a certain period, Based on the information, an influencing factor serving as a parameter of a function expressing the change of the item is extracted from a plurality of influencing factors expected to have some influence on the arbitrary system, and the extracted influencing factor is extracted. A mathematical model that simulates the function is created by using the influencing factors as parameters, and the amount of the extracted influencing factors is determined from the mathematical model to direct the change of the item in a desired direction, and the determined amount is determined. Is added to the arbitrary system.

According to a sixth aspect of the present invention, there is provided a method for controlling an arbitrary system, which collects information about one or a plurality of items indicating a state of an arbitrary system regardless of whether it is a natural product or an artificial product over a certain period, Based on the information, it is determined whether or not the change of the item can be expressed by some function, and if it is determined that the change can be expressed by some function, it is expected to have some effect on the arbitrary system. A plurality of influencing factors are selected, information about the determined items is collected while changing the state quantity of the influencing factors, and the information is discriminated from the plurality of influencing factors based on the information. The influencing factors that are the parameters of the function expressing the change of the selected item are extracted, and the mathematical expression model that simulates the function is created by using the extracted influencing factors as the parameters. From the above, the amount of the extracted influencing factors is determined so as to direct the change of the determined item in a desired direction, and the determined influencing factors are added to the arbitrary system. .

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION First, the recycling of marine resources, which the present inventors intend to realize, will be described with reference to FIG. First, a nutrient salt production plant 1 that produces nutrient salts from raw materials discharged on land from consumption areas such as urban areas.
In the pelagic sea, a production base for marine resources centering on the undersea structure 2 and the nutrient salt spraying device 3 imitating a natural seabed is constructed. Then, the transportation ships 4 and 5 operate as transportation equipment for nutrient salts and marine resources between the two.

In the nutrient salt production plant, various kinds of emissions are accumulated from consumption areas such as urban areas. There are two types of emissions here, one is raw garbage, fresh products that have lost value in the process of distribution, agricultural and forestry and fisheries crops that have not gained value as products, domestic wastewater, human excrement, etc. The ones that contain a large amount of organic substances such as, and the other ones are surplus substances (silicon, iron, etc.) discharged from the sites of mining and industrial production and disposal sites.

In the nutrient salt production plant 1, nutrient salts such as nitrogen, phosphorus, silicon, iron and vitamins are produced using these emissions as raw materials. In addition, since some by-products are obtained in the process of nutrient salt production, useful ones (for example, methane gas) among them are used as power sources in the plant, other energy sources, and various raw materials.

The produced nutrient salt is processed as it is, or in the form of liquid, gel, slurry or the like, or it is packed in a capsule to make it easy to transport. Transported to the base. In addition, the fact that the nutrient salt is packed in the capsule also includes the meaning of controlling the way of diffusion after being seeded.

The undersea structure 2 is constructed so as to form an artificial seabed in the surface area where sunlight can reach. In particular,
A huge structure 6 with buoyancy that floats in seawater is moored by an anchor cable 7 fixed to the original seabed and floated in the sea, or the tip of a long foundation pile erected from the original seabed toward the surface area. Install a huge structure in (no need to have buoyancy).

The structure 6 simulating the seabed is provided with facilities for promoting the establishment of fishery resources such as fish reefs. Further, if necessary, a facility for enclosing the fish by using bubbles, sound waves, or water flow is installed around the structure 6. Further, the underwater structure 2 is provided with various facilities for maintaining and maintaining itself, maintaining the position in the sea, and ensuring safety. In addition to this, the undersea structure 2 can be provided with a research facility that enables living in the sea and functions as a place for ocean observation and basic research in the sea.

[0029] In the sea area within the production base, a research that manages the undersea structure 2 and other equipments, plays a role of monitoring the state of the marine ecosystem in the production base, and provides a place for ocean science research on the ocean. The observation ship 8 is arranged.

The nutrient salt spraying device 3 is configured to spray the nutrient salt in various forms, the state of the sea area in the production base, the structure of the marine ecosystem to be established, and the like. , It may be installed on a transport ship or a dedicated ship.

When the transport ship 4 arrives at the production base, the nutrient salt is delivered to the spraying device 3, and the nutrient salt is sprayed into the sea. Before and after the application of nutrient salts, phytoplankton, which is the primary producer of the marine ecosystem, is released into the sea area within the production base as needed. In addition, dietary zooplankton which constitutes each stage of the marine ecosystem, various plankton of carnivorous zooplankton, and fry of large and small carnivores that prey on these are released as necessary.

In the sea area where the nutrient salts have been spread, the growth of phytoplankton starts, and the food chain in the marine ecosystem is established in this sea area as a trigger. First, phytoplankton, which is a primary producer, uses nitrogen, phosphorus, silicon,
Furthermore, it is actively photosynthesized by being supplied with nutrient salts such as iron and vitamins, and absorbs carbon dioxide released into the atmosphere and dissolved in seawater to release oxygen.

The primary producers are preyed upon by the carnivorous zooplankton, and the carnivorous zooplankton are preyed on by the carnivorous zooplankton. Small carnivores prey on the carnivore plankton, and large carnivores prey on the small carnivores.

By establishing the food chain in the marine ecosystem in this way, the sea area within the production base is transformed into a rich environment rich in marine resources, which was reproduced by the undersea structure 2. Many seafoods flock to the seabed and aquatic plants grow. The various marine resources produced in this way are harvested by an appropriate method at an appropriate time depending on the type, loaded on the transport ship 5, and transported to consumption areas such as urban areas. The consumption area is not limited to land, and includes all places where humans live, such as maritime cities and ships constructed offshore.

The landed fishery resources are appropriately processed and consumed along with the distribution of the market economy, and are also supplied to areas such as developing countries where the food supply does not meet the demand, thereby contributing to the elimination of food shortages. . It should be noted that fishery resources are not only landed as they are harvested, but may be appropriately processed during the transportation process.

Emissions such as raw garbage produced after consuming the marine resources are collected together with the above-mentioned other emissions, accumulated in the nutrient salt production plant 1 and used as a raw material of the nutrient salt. The nutrients produced are transported to the ocean as described above and reused as food for the primary producers of the marine ecosystem.

By realizing the recycling of marine resources as described above, the pelagic ocean which has been almost untouched up to now can be effectively utilized, and the life that was conventionally incinerated or discarded is left. Waste and domestic wastewater,
By reusing waste such as excrement, it is possible to reduce the amount of one-way waste and to reduce the amount of carbon dioxide in the atmosphere, thereby improving various factors that deteriorate the global environment. it can.

As described above, it is important to control the marine ecosystem in the pelagic ocean in order to realize the above-mentioned recycling of marine resources. In the following, we will explain the extraction of factors that affect the marine ecosystem, how to control the marine ecosystem using the extracted influencing factors, and how to deal with cases where the influencing factors cannot be identified. Please refer to the rough flow of these operations shown in FIG.

[Extraction of factors affecting marine ecosystem]
There are many items that indicate the state of the marine ecosystem. For example,
This includes the types of organisms that make up the marine ecosystem, their sizes, the number of individuals, or the equivalent amounts obtained by converting them into weights and component amounts. It is said that all of them are divided into those that can express the way of change by a function that can be expressed by a periodic function or chaos model with some influencing factor as a parameter, and those that cannot express the way of change by any function. There is. The influencing factors here include various nutrients and their concentrations contained in the sea area where the marine ecosystem exists, oxygen saturation in sea water, water temperature at the surface and arbitrary depth of the sea area, tidal current velocity, wave height,
Includes seabed topography, geomagnetism, marine weather, sunshine, temperature, wind speed, etc.

The phenomenon expressed by the word chaos is defined as deterministic and highly dependent on the initial value. It is a behavior that cannot be predicted in the medium to long term but can be predicted in the short term. To be done. If the change of an item can be expressed by a periodic function with some influencing factor as a parameter, the way of changing the item can be controlled by manipulating the influencing factor. If the change of a certain item can be expressed by a chaotic function with some influencing factor as a parameter,
By manipulating the influencing factors for that item, it is possible to control the manner of change in the short term (most items are considered to be included in this).

On the other hand, with respect to an item in which the manner of change cannot be expressed by any function, that is, an item which changes in a chaotic manner, there is no factor that influences the change, and the change does not occur in the short term or the medium to long term. You can't control how you do.

First, as the first step of narrowing down work,
Set one or more items that indicate the state of the marine ecosystem, collect information about those items, and based on the collected information, determine how each item changes with a periodic function or chaotic function. Is it something you can express?
Determine whether any function cannot express how to change.

The information can be collected by direct observation or measurement of set items, microscopic observation, engineering measurement, acoustic measurement, molecular biological analysis, biochemical analysis and the like. Further, examples of the method of discrimination include various analysis / analysis methods such as chaos analysis, characteristic element method, wavelet, optimization, frequency analysis (time series analysis), probability statistical analysis, and experimental design method.

Even if it is determined in the first step of narrowing down that the manner of change can be expressed by the periodic function or the chaotic function, what is the influential factor that becomes the parameter of the function expressing the item at this point? Then it is completely unknown. This is because the chaotic analysis considers only the behavior without revealing the background of the focused item. Therefore, as the second step of narrowing down work, we selected multiple influential factors that are expected to have some effect on the marine ecosystem, and while changing the state quantities of these influential factors,
Collect information about the items narrowed down in the first stage,
Based on the collected information, the influencing factors serving as the parameters of the function expressing the change of the items narrowed down in the first stage are extracted from each influencing factor. This is done using the "Self-Organizing Map" (more on this in "Self-Organizing Map" by Kohonen).

For example, by the narrowing work in the first stage,
Items determined to be able to express the manner of change by a periodic function or a chaotic function are (A) types of organisms that can be fisheries resources, (B) size, (C) various numbers of individuals,
It is assumed that (D) the transparency of the sea area and (E) the breeding degree of phytoplankton and aquatic plants that fix carbon dioxide.

In the second stage of narrowing work, attention is paid to nutrient salts and the like contained in the sea area where the marine ecosystem exists, as the influential factors expected to have some effect on the marine ecosystem, and the influence on the marine ecosystem. In order to change the state quantity of the factor, various nutrient salts alone or in combination,
For example, (1) nitrogen, (2) xx, (3) yy, ... (n)
Plural (n) items such as zz are selected.

Input of these influencing factors to the marine ecosystem (in this case, input to the sea area) in an experimental area (it is desirable that the sea areas are the same) sufficiently separated from each other so that they do not affect each other. carry out. At the same time, information on each of the above items (A) to (E) is collected in the experimental area, and based on the collected information, the above (1) to (E)
From the influential factors of (n), influential factors that can be parameters of the function expressing the changes of the items of (A) to (E) are extracted.

For the extraction, a chart as shown in FIG. 3 is created. In this chart, for example, by inputting the influencing factor (1), the evaluation values of [p, q, r, s, t] are given for the changes appearing in the items (A) to (E), respectively. Is shown. Other influential factors (2)
Similarly, for (n), the evaluation values for the changes appearing in the items (A) to (E) are also shown.

Here, depending on the influencing factor (1), (A)-
Evaluation values [p, q, r, s, given to each item of (E)
t] can be regarded as a characteristic vector indicating the direction of the change that appears in the marine ecosystem by the nutrition factor (1), that is, nitrogen. This is the same for the other influential factors (2) to (n), and the evaluation value given to each item (A) to (E) by each input appears in the marine ecosystem by the input. It can be regarded as a characteristic vector indicating the directionality of.

The direction of change appearing in the marine ecosystem due to the influencing factors (1) to (n) is expressed in a certain analysis space as shown in FIG. Immediately after the input, the reaching points of the changes due to the respective nutritional factors (1) to (n) are randomly scattered in the analysis space (there is no relation of the change or a state where the relation is unknown). From this state, the distance between the points is calculated, and each change is weighted to bring the evaluation values closer to each other. Weighting in this case means, for example, increasing production of marine resources, purification of sea areas,
For example, holding a fixed amount of carbon dioxide.

When the state of the analysis space after weighting is shown, as shown in FIG. 5, influential factors that cause changes similar to a marine ecosystem are gathered to form some groups. Among them, (I) is a group of influential factors gathered by weighting for the purpose of increasing the production of fishery resources. In this group (I), the items (A),
(B) and (C) include the nutritional factors given the excellent evaluation, for example, nitrogen of (1). In addition, (II) is a group of influential factors gathered by weighting aiming at purification of the sea area, and this group includes nutritional factors that are given an excellent evaluation in item (D), for example, xx in (2). included.
Further, (III) is a group of nutritional factors gathered by weighting for the purpose of maintaining the fixed amount of carbon dioxide, and this group has nutritional factors that are given an excellent evaluation in item (E), for example (3). Yy are included. The influential factors that do not belong to any group, such as (n), have no effect on at least increasing the production of marine resources, purifying the sea area, and maintaining the fixed amount of carbon dioxide, or It can be regarded as a factor that has a weak influence and can be ignored.

What this means is that the influencing factors belonging to group (I) were extracted as those that effectively act on the marine ecosystem in order to promote the increase in production of marine resources,
One of them is (1) nitrogen. In addition, the influencing factors belonging to group (II) are extracted as those that act effectively on the marine ecosystem in promoting purification of the sea area, and one of them is xx in (2). Furthermore, the influencing factors belonging to group (III) are
It was extracted as one that effectively acts on the marine ecosystem to promote the retention of the fixed amount of carbon dioxide, one of which is (3).
That is yy. In this way, by performing the two-step narrowing down work, it is possible to specify with high accuracy the influencing factors that enable the control of a complex marine ecosystem.

[Control of Marine Ecosystem Using Extracted Influencing Factors] First, a function having the identified influencing factors as parameters (functions expressing changes in each item of (A) to (E))
Create a mathematical model that simulates. Furthermore, in order to direct the changes in the items narrowed down in the first stage to the desired direction from the mathematical model, the amount of influencing factors that are parameters is determined, and the influencing factors of the determined amount are added to the marine ecosystem. To do. This will cause the marine ecosystem to undergo the changes intended in determining the amount of parameter influencing factors. In the following, more concretely, the case of controlling the marine ecosystem for some purpose will be described.

A) For the purpose of increasing the production of fishery resources Using the influencing factors belonging to the above group (I) as parameters, a mathematical expression of a function expressing changes in the above items (A), (B) and (C) Create a model. In making it, not only marine animals represented by seafood but also other organisms such as phytoplankton and zooplankton that compose the marine ecosystem are verified. For phytoplankton, for example, the rate of growth that progresses upon the input of nutrients, which is an influencing factor, the rate of dying without being eaten by zooplankton, etc. are considered. With regard to zooplankton, the rate of ingestion of propagated phytoplankton, the assimilation rate, the rate at which animals die without being eaten, etc. are considered. For animals, consider the assimilation rate of small carnivores by large carnivores.

FIG. 6 shows an example of control for increasing the production of marine resources. Fig. 6 shows that nitrogen is selected as the nutrient salt, and 1 μM once a day for the sea area aiming to establish a marine ecosystem.
It shows the results of investigating how the amounts of plant, animal plankton and fish that are carnivorous animals change during the one year of (micro-mol) nitrogen input. .

When this input pattern is adopted, phytoplankton grows at an early stage of the survey period, and the zooplankton grows by feeding on the grown plankton. Due to the growth of zooplankton, the amount of phytoplankton used as the food is slightly reduced from the initial amount, but after the mid-term of the survey period, the amount of phytoplankton remains stable, although there are some fluctuations. In addition, the amount of zooplankton that has proliferated also changes steadily with the supply of phytoplankton. Fish
It propagates later than phytoplankton and zooplankton due to its slow growth rate, but in the middle stage, the stable supply of zooplankton causes a rapid increase in the amount, and at the end stage, the amount of fish expands dramatically. It can be seen that when the above-mentioned input pattern is adopted, the linkage of the food chain proceeds well, and the amount of fish expected as a fishery resource increases.

When a mathematical model is created based on these verifications, the created mathematical model is applied to a control system to be established in order to improve the growth rate of marine resources, and it is an influencing factor that is a parameter, such as a nutrient salt. The amount of nitrogen in (1) is determined, and the determined amount of nitrogen is sprinkled in the sea area. As a result, changes in the marine ecosystem will occur, such as an increase in the types of organisms that make up the marine ecosystem, an increase in the size of individuals, and an increase in the number of various individuals, which will lead to increased production of marine resources.

By the way, as described above, most of the items indicating the state of the marine ecosystem are considered to be functions that can be represented by a chaos model, and only short-term prediction, which is a characteristic of chaos, can be performed. Is thought to be possible only for a short period of time. Therefore, during this period, the marine ecosystem will be surveyed and observed to collect information. And
The above-mentioned nutritional factor extraction work is performed again to identify the influential factors that enable control of the marine ecosystem, and using this influential factor, a mathematical model is created in the same way as the previous time, and the growth rate of marine resources is The amount of influencing factors is determined to improve, and the determined amount of influencing factors is given to the marine ecosystem, and changes that lead to increased production of marine resources are manifested. Note that the influencing factors identified by the second extraction work do not necessarily match the influencing factors identified by the previous narrowing down work, but in a complex marine ecosystem, before and after seeing any changes. It is no wonder that influencing factors are different even if the purpose is the same.

As described above, by repeatedly performing [extraction of factors affecting the marine ecosystem] and [control of the marine ecosystem using the extracted influencing factors], production of marine resources can be increased. Can be continuously expressed.

Although nitrogen, which is a nutrient salt, is taken as an example of the influencing factor here, there are innumerable influencing factors other than those belonging to the above-mentioned group (I) that promote the increase in production of marine resources. By newly extracting such factors and adding an appropriate amount determined from a mathematical model created based on these factors to the marine ecosystem by means of sprinkling, injection, input, aeration or other means depending on the form of the factors, Similar to the above, changes that lead to increased production of marine resources can be expressed.

B) In case of purifying sea area A mathematical model of a function expressing the change of the above item (D) is prepared with all the consideration by using the influencing factors belonging to the above group (II) as parameters. To do. After creating the mathematical model, influencing factors that are parameters, for example, the amount of xx in (2) is determined in order to promote the purification of the sea area, and the determined amount of xx is added to the marine ecosystem. This will bring about changes in the marine ecosystem, such as increased transparency, that will lead to purification of the sea area.

Also in this case, by repeating the above-mentioned [extraction of influencing factors] and [control of the marine ecosystem using the extracted influencing factors], changes in the marine ecosystem leading to purification of the sea area can be achieved. Can be expressed continuously.

Needless to say, innumerable factors other than those belonging to the above-mentioned group (II) exist for influencing the purification of the sea area. By newly extracting such factors and adding an appropriate amount determined from a mathematical model created based on these factors to the marine ecosystem by means of sprinkling, injection, input, aeration or other means depending on the form of the factors, Similar to the above, changes that lead to purification of the sea area can be expressed.

C) For the purpose of holding the fixed amount of carbon dioxide The mathematical model of the function expressing the change of the above item (E) is studied by using the influencing factors belonging to the above group (III) as parameters. In addition, create. After creating a mathematical model, in order to maintain the fixed amount of carbon dioxide,
A parameter, an influencing factor, for example, the amount of yy in (3), is determined, and the determined amount of yy is added to the marine ecosystem by means of sprinkling, injecting, inputting, aerating or the like. As a result, changes in the marine ecosystem that lead to the retention of the fixed amount of carbon dioxide, such as the active growth of phytoplankton that fixes carbon dioxide and aquatic plants, will appear.

FIG. 7 shows an example of control for the purpose of holding a fixed amount of carbon dioxide. Fig. 7 shows plant, animal plankton and carnivore during the period when an operation of introducing 28 µM nitrogen into the sea area aiming to establish a marine ecosystem once every 28 days is performed for one year. The result of having investigated how the quantity of fish changes is shown.

If this input pattern is adopted, phytoplankton will explode every time nitrogen is input, but since the period of ups and downs is too short, zooplankton cannot grow and the state is almost dead from the initial stage. Become. Fish too
Only a very small amount can be maintained without receiving the supply of zooplankton. If the above input pattern is adopted, the phytoplankton that absorbs the carbon dioxide dissolved in the seawater together with nitrogen and proliferates will die without becoming food for the zooplankton, and the carcass will emit carbon dioxide. Without sinking to the sea floor. As a result, carbon dioxide dissolved in the seawater from the atmosphere is immobilized on the seabed using phytoplankton as a medium (this action
Carbon dioxide ocean sequestration by biological pumps ").

In this case as well, the above-mentioned [extraction of influencing factors] and [control of marine ecosystem using extracted influencing factors] are repeatedly performed to maintain the fixed amount of carbon dioxide in the marine ecosystem. Can be continuously expressed.

Needless to say, there are innumerable influential factors that realize the retention of the fixed amount of carbon dioxide, in addition to those belonging to the group (III). By newly extracting such factors and adding an appropriate amount determined from a mathematical model created based on these factors to the marine ecosystem by means of sprinkling, injection, input, aeration or other means depending on the form of the factors, Similar to the above, a change leading to the retention of the fixed amount of carbon dioxide can be expressed.

D) When the purpose is to preserve the marine ecosystem established in the aquaculture facility In this case, from a short-term perspective, the conservation of the marine ecosystem established in the aquaculture facility such as a marine farm should be performed. The purpose is to set new items and extract influential factors. However, the influencing factors here do not necessarily need to be supplied from the outside, but those that naturally exist on the sea or in the sea, such as the water temperature, the tidal velocity, and the wave height at the surface layer and any depth of the sea area. , Seabed topography, geomagnetism,
Includes weather, sunshine, temperature, wind speed, etc. above sea area.

Next, using the extracted influencing factors as parameters, a mathematical expression model of a function expressing a change in a new setting item is created by making all studies. Once you have created a mathematical model, to promote short-term conservation of marine ecosystems,
In order to determine the amount of influencing factors that are parameters and to add the influencing factors corresponding to the determined amounts to the marine ecosystem, the aquaculture facility itself is moved to the sea area where there is a considerable amount of influencing factors. This will enable short-term conservation of the marine ecosystem established in the aquaculture facility.

Also in this case, by repeatedly performing the above “extraction of influencing factors” and “control of the marine ecosystem using the extracted influencing factors”, the conservation of the marine ecosystem established in the aquaculture facility is preserved. The continuous maintenance of

[Correspondence when the influential factor cannot be specified] If the change of a certain item cannot be expressed by any function, it is impossible to specify the influential factor for the item. In such cases, we will make full use of empirical information accumulation and human imagination to arbitrarily add factors to the marine ecosystem. As a result, some changes will appear in the marine ecosystem, and new survey items will be set from there, and the above [extraction of influencing factors] will be performed. If influential factors can be identified due to changes in the marine ecosystem, it can be used to control the marine ecosystem.

By the way, although the explanation has been made so far about the marine ecosystem, the extraction of the influencing factors as described above and the control of the system by the extracted influencing factors are not limited to the marine ecosystem. It can be implemented not only in freshwater areas such as rivers and lakes, but also in all ecosystems established on land. Also, not only the system established by the relationships centered on these living things, but also ocean currents and tidal currents,
It can be applied to all systems existing in natural objects such as water flow, topography and meteorology, as well as all systems existing in artificial objects such as groups, organizations and social structures.
Then, by controlling the system as described above,
It can bring orderly harmony and development.

[0074]

As described above, according to the present invention,
Influential factors that enable control of the marine ecosystem can be accurately extracted, and the extracted influential factors can control the marine ecosystem and cause intentional changes.
This makes it possible to recycle marine resources. Furthermore, according to the present invention, the same effects as in the case of marine ecosystem can be obtained for any system regardless of natural or artificial ones, which can bring orderly harmony and development to the system. .

[Brief description of drawings]

FIG. 1 is a diagram showing a fishery resource recycling system.

FIG. 2 is a flowchart showing a flow of extraction of influential factors and control of a marine ecosystem using the extracted influential factors.

FIG. 3 is a diagram to be created when extracting factors that affect the marine ecosystem.

FIG. 4 is a map diagram created from the chart of FIG. 3 and showing the directionality of each influencing factor.

FIG. 5 is a map diagram showing the directionality of each influencing factor after self-organization.

FIG. 6 is a graph showing changes in the bioresources of each plankton of plants and animals and fish when a pattern of introducing 1 μM nitrogen once a day is continuously performed for one year.

FIG. 7 is a graph showing changes in the bioresources of plant and animal plankton and fish when a pattern of introducing 28 μM nitrogen once every 28 days is continuously performed for 1 year.

[Explanation of symbols]

1 Nutrient production plant 2 Undersea structures 3 Nutrient salt spraying device 4,5 transport ship

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Shinsuke Murakami             3-5-1, 717-1, Fukahori-cho, Nagasaki-shi, Nagasaki             Hishi Heavy Industries Ltd. Nagasaki Research Center (72) Inventor Masami Miura             3-5-1, 717-1, Fukahori-cho, Nagasaki-shi, Nagasaki             Hishi Heavy Industries Ltd. Nagasaki Research Center (72) Inventor Takeshi Nakahama             8-20 Asahimachi, Nagasaki City, Nagasaki PAL Corporation             In-house F term (reference) 2B104 BA00 EF09 GA01

Claims (6)

[Claims] 1. Information on one or more items indicating the state of a marine ecosystem is collected over a certain period of time, and based on the information, it is determined whether or not the change of the item can be expressed by some function. , If it is determined that it can be expressed by some function, a plurality of influencing factors that are expected to have some influence on the marine ecosystem are selected, and the determination is performed while changing the state quantity of the influencing factors. Collecting information about items, based on the information, extracting from the plurality of influencing factors, an influencing factor serving as a parameter of a function expressing the change of the determined item, A method for extracting factors that affect the marine ecosystem. 2. Information on one or more items indicating the state of the marine ecosystem is collected over a period of time, and based on the information, a plurality of influences that are expected to have some influence on the marine ecosystem. From the factors, an influencing factor serving as a parameter of a function expressing the change of the item is extracted, and a mathematical model that simulates the function is created by using the extracted influencing factor as a parameter. The method for controlling a marine ecosystem, wherein the amount of the extracted influencing factors is determined so as to direct the change in the desired direction, and the determined amount of the influencing factors is added to the marine ecosystem. 3. Information on one or more items indicating the state of the marine ecosystem is collected over a certain period of time, and based on the information, it is determined whether or not the change of the item can be expressed by some function. , If it is determined that it can be expressed by some function, a plurality of influencing factors that are expected to have some influence on the marine ecosystem are selected, and the determination is performed while changing the state quantity of the influencing factors. Information about the item is collected, and based on the information, an influencing factor serving as a parameter of a function expressing the change of the discriminated item is extracted from the plurality of influencing factors, and the extracted influencing factor is extracted. A mathematical model that simulates the function is created by using a factor as a parameter, and the extracted shadow is used to direct the change of the discriminated item in a desired direction from the mathematical model. To determine the amount of factor control method of marine ecosystems, characterized in that the influencing factors of the amount the determined added to the marine ecosystem. 4. Collecting information about one or a plurality of items showing the state of an arbitrary system regardless of natural products or artificial products over a certain period, and based on the information, the change of the items is expressed by some function. If it is determined that it can be expressed by some function, a plurality of influential factors that are expected to have some influence on the arbitrary system are selected, and the state quantity of the influential factor is determined. While changing, the information about the determined item is collected, and based on the information, the influencing factor serving as the parameter of the function expressing the change of the determined item is selected from the plurality of influencing factors. A method for extracting a factor that affects an arbitrary system, characterized by extracting. 5. Collecting information about one or more items indicating the state of an arbitrary system regardless of whether it is a natural product or an artificial product over a certain period of time, and based on the information, some influence is exerted on the arbitrary system. An influencing factor serving as a parameter of a function expressing the change of the item is extracted from a plurality of influencing factors expected to exert, and a mathematical model for simulating the function is created using the extracted influencing factor as a parameter. From the mathematical model, the amount of the extracted influencing factors is determined to direct the change of the item in a desired direction, and the determined amount of influencing factors is added to the arbitrary system. Yes, any system control method. 6. Information on one or a plurality of items showing the state of an arbitrary system regardless of whether it is a natural product or an artificial product is collected over a certain period of time, and the change of the item is expressed by some function based on the information. If it is determined that it can be expressed by some function, a plurality of influential factors that are expected to have some influence on the arbitrary system are selected, and the state quantity of the influential factor is determined. While changing, the information about the determined item is collected, and based on the information, the influencing factor serving as the parameter of the function expressing the change of the determined item is selected from the plurality of influencing factors. Extracting, creating a mathematical model that simulates the function with the extracted influencing factor as a parameter, and changing the determined item in a desired direction from the mathematical model. Wherein the amount of extracted influencing factors to determine the, characterized in that the influencing factors of the amount the determined added to the arbitrary system, the control method for any system to Kawaseru.