Skip to main content

Power analysis to assist in establishing a sampling regime for Conversion Factors in CCAMLR toothfish fisheries.

Request Meeting Document
Document Number:
WG-SAM-2025/01
Author(s):
CCAMLR Secretariat
Submitted By:
Dr Stéphane Thanassekos (CCAMLR Secretariat)
Approved By:
Dr David Agnew (CCAMLR Secretariat)
Accessibility Categories
Request permission to release each time (RP)
Abstract

A power analysis was conducted to estimate the number of longline sets and the number of fish sampled from each set that would be required to reach an 80% power in detecting a 3% change in conversion factor values over a month. Required sample sizes varied among vessels with a trade-off between sampling frequency and the number of fish per set. A single rule could be determined based on these results.