Evaluation of traditional and bootstrapped methods for assessing data-poor fisheries: a case study on tropical seabob shrimp (<i>Xiphopenaeus kroyeri</i>) with an improved length-based mortality estimation method.

ABSTRACT:

Background

Unrealistic model assumptions or improper quantitative methods reduce the reliability of data-limited fisheries assessments. Here, we evaluate how traditional length-based methods perform in estimating growth and mortality parameters in comparison with unconstrained bootstrapped methods, based on a virtual population and a case study of seabob shrimp (Xiphopenaeus kroyeri, Heller, 1862).

Methods

Size data were obtained for 5,725 seabob shrimp caught in four distinct fishing grounds in the Southwestern Atlantic. Also, a synthetic population with known parameter values was simulated. These datasets were analyzed using different length-based methods: the traditional Powell-Wetheral plot method and novel bootstrapped methods.

Results

Analysis with bootst

SUBMITTER: de Barros M 

PROVIDER: S-EPMC11569787 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature