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Fish movement and spatial distribution simulation method and system based on individual mode

A technology of spatial distribution and motion simulation, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as inability to carry out results or structures, comparison, lack of commonality of models, etc.

Active Publication Date: 2017-05-03
NANJING HYDRAULIC RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] Although the individual fish model is widely used, it is only built to solve specific problems
The models established by different researchers are different, and the lack of commonality between the models makes it impossible to compare results or structures. This makes the development of models based on individual fish still have a long way to go from universal models

Method used

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  • Fish movement and spatial distribution simulation method and system based on individual mode
  • Fish movement and spatial distribution simulation method and system based on individual mode
  • Fish movement and spatial distribution simulation method and system based on individual mode

Examples

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Embodiment Construction

[0045] Such as figure 1 As shown, the method for simulating fish movement and spatial distribution based on individual models in this embodiment includes the following steps:

[0046] S1. Obtain the water environment area where the individual fish lives, and perform grid division, where each grid is assigned water depth and flow velocity.

[0047] S2. Find the preferred flow rate range corresponding to the current life stage of the individual fish from the preset fish life stage-preferred flow rate range mapping table.

[0048]Among them, the preferred flow velocity range corresponding to different life stages of fish is defined in the different life stages of fish-preferred flow velocity range mapping table.

[0049] S3. Obtain the current flow direction of the grid where the fish individual is currently located, and judge whether the fish individual moves in the opposite direction of the water flow direction within the preset time period, whether it can reach the grid whose...

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Abstract

The invention discloses a fish movement and spatial distribution simulation method and a fish movement and spatial distribution simulation system based on an individual mode. The method comprises the steps of building a fish movement spatial explicit model based on ecological behaviors of fish, and simulating a movement process of each fish individual by coupling with a water environment model; and acquiring space-time dynamic distribution of the fish. According to the method and the system provided by the invention, during a process of building a simulation model, easy acquisition of model parameters and actual ecological significance of the parameters are considered, and the defect of a messy situation based on the fragmented individual fish models is remedied, so that the method and the system are universal.

Description

technical field [0001] The invention relates to fish simulation, in particular to a method and system for simulating fish movement and spatial distribution based on individual models. Background technique [0002] Fish is an important indicator species in aquatic ecosystems, and its physiological and ecological behaviors are highly complex and nonlinear. The traditional simulation adopts a space lumped model, considers the population abundance or biomass as a static variable in the simulation process, and only uses very few state parameters to describe the interaction between biological populations and populations, which has a great impact on the dynamics of populations. Simulation is very limited. [0003] With advances in computer science and spatial data collection capabilities, individual-based models have developed rapidly. The fish movement model based on the individual model can overcome the shortcomings of the traditional lumped model. It is discrete in the system ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 陈求稳林育青胡柳明
Owner NANJING HYDRAULIC RES INST
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