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Acceleration of assessment of fish populations and comparativestudies of similar taxonomic groups
S K Banerji,T S Krishnan +1 more
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In this paper, three types of assessment have been distinguished: a preliminary assessment, which just indicates if fishing is affecting the stock, and a second type, which predicts long-term effect of fishing on a stock without taking into consideration the effect of fluctuating environmental factors.Abstract:
Proper assessment of the impact of fishing on the various fish populations is essential for the efficient management of the fishery resources of the country. Three types of assessment have been distinguished. A preliminary assessment just indicates if fishing is affecting the stock. The second type of assessment predicts long-term effect of fishing on a stock without taking into consideration the effect of fluctuating environmental factors. The final type, which is obviously the ultimate objective of all assessments, takes into account changing environment in forecasting the effect of fishing on a stock. Various diagnostic characters and parameters needed to be estimated for each type of assessment are indicated. Quicker methods of estimating some of the parameters are indicated. The role of comparative study of similar taxonomic group for such estimation of some of the parameters has been mentioned.read more
Citations
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Book
Fish population dynamics in tropical waters: A manual for use with programmable calculators
TL;DR: This manual discusses length-Weight Relationships, Parameter Estimation, and total mortality from the oldest animal in the catch and further inferences from length-converted catch curves.
Journal ArticleDOI
Beyond Our Original Horizons: the Tropicalization of Beverton and Holt
TL;DR: It is shown that the normal science which has led to new methods for estimating growth, mortality and other statistics required for yield per recruit analyses in data-sparse environments, has not only enriched fisheries science and aquatic biology as a whole, but has also contributed to identify the limitations of the single-species research programme originally defined by Beverton and Holt.
Atlantis model development for the northern Gulf of California
Cameron H. Ainsworth,Isaac C. Kaplan,Phillip S. Levin,Richard Cudney-Bueno,Elizabeth A. Fulton,Marc Mangel,Peggy Turk-Boyer,Jorge Torre,Alejandro Parés-Sierra,Hem Nalini Morzaria-Luna +9 more
Population parameters of small pelagic fishes caught off Tawi-Tawi, Philippines.
I.E. Aripin,P.A.T. Showers +1 more
TL;DR: The growth parameters derived were found comparable with previous estimates available for the same species from other localities, and fishing mortality and exploitation rate were found to be presently above appropriate levels.
References
More filters
Book
Fish population dynamics in tropical waters: A manual for use with programmable calculators
TL;DR: This manual discusses length-Weight Relationships, Parameter Estimation, and total mortality from the oldest animal in the catch and further inferences from length-converted catch curves.
Journal ArticleDOI
Beyond Our Original Horizons: the Tropicalization of Beverton and Holt
TL;DR: It is shown that the normal science which has led to new methods for estimating growth, mortality and other statistics required for yield per recruit analyses in data-sparse environments, has not only enriched fisheries science and aquatic biology as a whole, but has also contributed to identify the limitations of the single-species research programme originally defined by Beverton and Holt.
Atlantis model development for the northern Gulf of California
Cameron H. Ainsworth,Isaac C. Kaplan,Phillip S. Levin,Richard Cudney-Bueno,Elizabeth A. Fulton,Marc Mangel,Peggy Turk-Boyer,Jorge Torre,Alejandro Parés-Sierra,Hem Nalini Morzaria-Luna +9 more
Population parameters of small pelagic fishes caught off Tawi-Tawi, Philippines.
I.E. Aripin,P.A.T. Showers +1 more
TL;DR: The growth parameters derived were found comparable with previous estimates available for the same species from other localities, and fishing mortality and exploitation rate were found to be presently above appropriate levels.