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Course outline
Hours |
Topics |
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Stock - stock assessment - definition - objectives |
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Stock concept |
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Problems in estimation of age and growth in tropical fishes |
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Pauly's integrated method |
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Growth equation - relative growth rate, mean growth rate |
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Gulland and Holt Plot |
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Length and weight based VBGF equation |
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Ford Wolford and Chapman's method |
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Fitting growth curves-computer programmes-ELEFAN system |
|
Fishing effort |
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Mortality estimation in tropical fishes |
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Estimation of Z from CPUE |
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Estimation of Z from linearized growth curve |
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Beverton and Holt equation |
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Fishing mortality- assessment in tropical waters |
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Natural mortality- assessment in tropical waters |
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Virtual population analysis |
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Stock assessment model- tropical fishes |
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Beverton and Holt model |
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Thompson and |
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Logistic model |
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Merits and demerits of production model |
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|
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Multispecies - multi fleet problems |
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Stock recruitment relationship |
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Cohort analysis |
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Sampling resources estimation |
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Catchability co-efficient, exploitation rate and ratio |
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Gill net selectivity |
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Trawl net selectivity |
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Maximum sustainable yield |
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FISAT – Computer packages in stock assessment |
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Sustainable measures for conservation of marine fishes in Indian waters |
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Problem – Suggestion in tropical fish stock assessment |
Practical
No. of practicals |
Topics |
|
Gulland and Holt plot |
|
VBGF plot |
|
Ford Wolford and Chapman's equation |
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Estimation of MSY and FMSY |
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Estimation of MEY and FMEY |
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Gill net selectivity |
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Estimation of 'Z' |
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Estimation of 'F' |
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Estimation of 'M' and 'q', 'E' and 'U' |
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Length frequency analysis |
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Sampling of fish from fish landing centers |
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Cohort analysis. |
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Analytical model(l) |
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Analytical model(2) |
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Revision |