Harvest strategy evaluation for school and gummy shark

The Management Strategy Evaluation (MSE) approach is used to assess the benefits of alternative harvest strategies to set annual Total Allowable Catches (TACs) for school shark (Galeorhinus galeus) and gummy shark (Mustelus antarcticus). The harvest strategies are based on a stock assessment method...

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Bibliographic Details
Main Authors: André E. Punt, Fred Pribac, Bruce L. Taylor, Terence I. Walker
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Published: 2005
Subjects:
Key words
Australia
gummy shark
harvest strategy
Monte Carlo simulation
school shark
Antarc*
antarcticus
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.580.2541
http://journal.nafo.int/35/punt/18-punt.pdf
Description
Summary:The Management Strategy Evaluation (MSE) approach is used to assess the benefits of alternative harvest strategies to set annual Total Allowable Catches (TACs) for school shark (Galeorhinus galeus) and gummy shark (Mustelus antarcticus). The harvest strategies are based on a stock assessment method that includes consideration of the gear-types employed in the fishery and the nature of the shark pupping process. The harvest strategies are compared in terms of performance measures that relate to average catches, catch variability and resource conservation. The uncertainties that impact performance to the greatest extent are the technical interaction between fishing for school shark and for gummy shark, the productivity of the overexploited school shark resource, and the extent to which tagged animals lose tags (or die) immediately after tagging.

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