|Document Type:||Journal Article|
|Title:||Accounting for fish shoals in single- and multi-species survey data using mixture distribution models|
|Author:||James T. Thorson, I. J. Stewart, A. E. Punt|
|Journal:||Canadian Journal of Fisheries and Aquatic Sciences|
|Keywords:||schooling, mixture distribution generalized linear model, Pacific rockfish, mixed effects model, multi-species, extraordinary catch events,schooling,mixture distribution,extraordinary catch events,rockfish|
A scientific bottom trawl survey targeting Pacific rockfishes (Sebastes spp.) occasionally yields extraordinary catch events (ECEs) in which catch-per-unit-area is much greater than usual. We hypothesize that ECEs result from trawl catches of fish shoals. We developed mixture distribution models for positive catch rates to identify spatial covariates associated
|Theme:||Recovery, Rebuilding and Sustainability of Marine and Anadromous Species|
Develop methods to use physiological and biological information to predict population-level processes.