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Implementation of alternative CPUE/abundance dynamics for purse seine fisheries within MULTIFAN-CL with application to effort-based projections for skipjack tuna
Citation
Scott, R and Tidd, A and Davies, N and Pilling, GM and Harley, SJ, Implementation of alternative CPUE/abundance dynamics for purse seine fisheries within MULTIFAN-CL with application to effort-based projections for skipjack tuna, Western and Central Pacific Fisheries Commission 11th Regular Session Summary Report, 05-13 August 2015, Pohnpei, Micronesia, pp. 1-10. (2015) [Non Refereed Conference Paper]
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Abstract
A common assumption in most stock assessment models is that catch per unit of effort (CPUE)
scales in strict proportion to stock abundance. However, for purse seine fi sheries in particular, this
assumption may not hold. As a stock is depleted, catches can remain high as abundance decreases.
This is known as hyperstability in CPUE and can impact the conclusions of analyses undertaken
to inform management decisions.
Item Details
| Item Type: | Non Refereed Conference Paper |
|---|---|
| Keywords: | CPUE/abundance dynamics;purse seine fisheries;skipjack tuna |
| Research Division: | Agricultural, Veterinary and Food Sciences |
| Research Group: | Fisheries sciences |
| Research Field: | Fisheries management |
| Objective Division: | Environmental Management |
| Objective Group: | Terrestrial systems and management |
| Objective Field: | Assessment and management of terrestrial ecosystems |
| UTAS Author: | Tidd, A (Dr Alexander Tidd) |
| ID Code: | 116272 |
| Year Published: | 2015 |
| Deposited By: | Fisheries and Aquaculture |
| Deposited On: | 2017-05-04 |
| Last Modified: | 2022-08-23 |
| Downloads: | 0 |
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