Multi-dimensional one-stop investigation method for spawning fish spawning site on grasses in large water areas of rivers, lakes and reservoirs

A technology for grass and spawning grounds in waters, applied in fish farming, instruments, climate change adaptation, etc. It can solve the problems of unsynchronized and untimely survey time, incomplete survey content, and no multi-dimensional survey. Effect

Active Publication Date: 2020-04-14
HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problems that the investigation time is not synchronized and not timely, the investigation content is not comprehensive, and there is no multi-dimensional investigation method in the current investigation of the spawning grounds of grass-spawning fish in large-scale waters of rivers, lakes and reservoirs.

Method used

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  • Multi-dimensional one-stop investigation method for spawning fish spawning site on grasses in large water areas of rivers, lakes and reservoirs
  • Multi-dimensional one-stop investigation method for spawning fish spawning site on grasses in large water areas of rivers, lakes and reservoirs

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specific Embodiment approach 1

[0022] Specific implementation mode one: the multi-dimensional one-stop investigation method of fish spawning grounds on the grass of a kind of rivers, lakes and reservoir waters of the present embodiment, it is to complete the rivers, lakes and reservoirs ( The one-stop investigation of the spawning grounds of grass-spawning fishes in large open waters (referred to as rivers and lakes) is carried out in accordance with the following steps:

[0023] 1. Surface survey:

[0024] Select the range of waters to be investigated in rivers, lakes or reservoirs, search for grasslands on the water surface and along the coastline, and after finding the grassland target, observe the grassland area, perform multi-point GPS positioning and numbering, describe the characteristics of the grassland, and calculate the area of ​​the grassland. Check whether there are living fish eggs (also called fertilized eggs, eggs) adhered to the aquatic plants in the grass beach. If the fish eggs are found,...

specific Embodiment approach 2

[0035] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the target grassland area river and lake water level, flow velocity, grassland water area, grassland geometry, grassland water depth, grassland bottom quality, inflection point coordinates in the measurement step one and shore distance. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0036] Embodiment 3: This embodiment differs from Embodiment 1 in that: observe and record the species, density, community, position of the grass beach and the growth shape of the aquatic plants in the target grass beach in step 1. Others are the same as in the first embodiment.

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Abstract

The invention discloses a multi-dimensional one-stop investigation method for a spawning fish spawning site on grasses in large water areas of rivers, lakes and reservoirs, and relates to a grass spawning fish spawning site investigation method. Aiming at the problems of fish spawning sites in fishery resource investigation and evaluation and fishery ecological environment protection, the invention aims to solve the problems of non-synchronous and non-timely investigation time, incomplete investigation content and no multi-dimensional investigation method in the existing investigation of spawning fish spawning sites on grasses in large water areas of rivers, lakes and reservoirs. The investigation method is implemented to form a one-stop investigation method of point-line-surface movement,multi-dimensional, omnibearing, long-distance, large-range and carpet-type search on the water surface, underwater and air, the timeliness is high, the efficiency is high, the amount of obtained datainformation is large, scientificity, systematicness and accuracy are high, and the ideal effect of synchronously, rapidly and systematically investigating and observing an investigation water area isachieved. The multi-dimensional one-stop investigation method is applied to the fishery field.

Description

technical field [0001] The invention relates to a method for investigating the spawning grounds of fish spawning on grass, in particular to a multi-dimensional one-stop investigation method for spawning grounds of fish spawning on grass in large water areas of rivers, lakes and reservoirs. Background technique [0002] Spawning grounds refer to the waters where fish, shrimps and shellfish mate, spawn, hatch and raise young. They are important places for the survival and reproduction of aquatic organisms, key habitats in the life history of fish, and play an important role in supplementing fishery resources. Grass-spawning fish are widely distributed in rivers, lakes, reservoirs and other rivers and lakes (referred to as rivers and lakes). Generally, most of them are sedentary fish. The migration distance of populations in the life history process is relatively short, and they are an important part of fishery resources in specific regions. . Mature eggs of fish spawning on g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/02A01K61/10
CPCG06Q10/06313G06Q10/06395G06Q50/02A01K61/10Y02A40/81
Inventor 刘伟鲁万桥李培伦王继隆唐富江
Owner HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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