Results 171 to 180 of about 14,465 (214)
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Multifrequency acoustic assessment of fisheries and plankton resources
The Journal of the Acoustical Society of America, 1998The range of target species encountered in marine biological resource assessment and the inability to obtain a broad view of these resources by direct physical sampling techniques has lead to the utilization of various indirect measurement techniques.
Thomas C. Torkelson +2 more
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Assessing and managing fishery resources
Nutrition & Food Science, 1997CEFAS, the Centre for Environment, Fisheries and Aquaculture Science, is responsible for providing the scientific advice required to manage the exploitation of fisheries resources of interest to the UK. Information is collected from fishermen’s logbooks and fish markets on the catches and fishing activity of the English and Welsh fleets, and length and
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Assessment of Hong Kong's inshore fishery resources
2014Executive Summary -- Introduction -- Methods -- Biomass estimation methods -- Catch estimation methods -- Single species assessment methods -- Length weight relationship -- Growth rates -- Mortality rates -- Total mortality rate Z -- Natural mortality rate, M -- Offshore migration rate, G -- Fishing mortality rate, F -- Yield-per-recruit analysis ...
Pitcher, Tony J. +3 more
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Assessment of fishery resource of a marine ranching based on a DIDSON
OCEANS 2014 - TAIPEI, 2014Marine ranching is a new concept of modern fishery, which has extremely significance to the development of modern ocean economy. Various technologies are required to ensure the efficiency of marine ranching. Among those, the technology of ocean resource assessment, especially fish resource, plays an indispensible and key role.
Renai Huang, Jun Han, Jianfeng Tong
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Assessment of the Sustainable Use of Fishery Resources and an Early Warning System
2021Sustainable utilization of fishery resources is the essence and core issue of sustainable development of fishery. Without sustainable utilization of fishery resources, sustainable development of fishery can not be achieved. Therefore, comprehensive evaluation of sustainable utilization of fishery resources can objectively reflect the development ...
Xinjun Chen, Qi Ding
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[Hydroacoustic assessment of fish resources in reservoirs with different fishery management].
Ying yong sheng tai xue bao = The journal of applied ecology, 2014By using Biosonics DT-X echosounder (208 kHz), a hydroacoustic investigation was conducted on the fish resources in three mesotrophic reservoirs (Daxi Reservoir, Shahe Reservoir, and Jinniushan Reservoir) with different fishery management in late autumn and early winter 2011, and a GIS model was constructed to assess the fish resource distribution in ...
Ming-Bo, Sun +4 more
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The fisheries resources of Lake Nakivali: report of a rapid assessment of the Lake Nakivali fishery
2021Lake Nakivali is one of the four small lakes that form what is known as the Koki lakes system. It is 14 km long, 6 km wide, 26 km2 in area and has maximum depth of 3.5 m at high water level. The lake is located in a lake-swamp complex with River Rwizi as the principle inflow, and a number of peripheral lakes among which are four major ones, i.e.
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The Journal of the Acoustical Society of America, 1978
Hydroacoustic techniques are becoming widely used in fishery resource assessment. There are many sources of variability and uncertainty in these techniques, and their accuracy and precision has been questioned. Studies at the University of Washington have evaluated the performance of hydroacoustic techniques in a variety of applications where ...
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Hydroacoustic techniques are becoming widely used in fishery resource assessment. There are many sources of variability and uncertainty in these techniques, and their accuracy and precision has been questioned. Studies at the University of Washington have evaluated the performance of hydroacoustic techniques in a variety of applications where ...
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1972
Gill-netting and rotenoning have been used for assessing and monitoring fish stock abundance in Volta Lake. The lake and the main gear types used on it have been described. Before a gill-net sampling plan was set up, a preliminary survey was undertaken which largely determined the final form of the plan.
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Gill-netting and rotenoning have been used for assessing and monitoring fish stock abundance in Volta Lake. The lake and the main gear types used on it have been described. Before a gill-net sampling plan was set up, a preliminary survey was undertaken which largely determined the final form of the plan.
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Assessing and managing the resources available to the Senegalese small-scale fisheries [PDF]
Naga, 1993 A brief account of the evolution and structure of the marine fisheries of Senegal, West Africa, is presented, with emphasis on the small-scale subsector and on the major recommendations of an international symposium/workshop on this topic, held on February 1993 in Dakar.
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