Stock assessment of fishery target species in Lake Koka, Ethiopia

Stock assessment of fishery target species in Lake Koka, Ethiopia.

Effective management is essential for small-scale fisheries to continue providing food and livelihoods for households, particularly in developing countries where other options are often limited. Studies on the population dynamics and stock assessment on fishery target species are thus imperative to sustain their fisheries and the benefits for the society. In Lake Koka (Ethiopia), very little is...

Fishery Stock Assessment Models

Historically, stock assessments of Atlantic blue marlin (Makaira nigricans) and white marlin (Tetrapturus albidus), conducted under the auspices of the International Commission for the Conservation of Atlantic Tunas (ICCAT), have been restricted to production modeling approaches. Production models are used due to the unique fisheries and biological aspects of the species which result in a pauci...

Application to fishery stock assessment

We consider a Monte Carlo Markov chain (MCMC) algorithm for fisheries stock assessment. The biomass of this stock at a given year could be modeled as a nonlinear function of the biomass and catch for the two previous years, of different parameters (recruitment, growth rate, natural mortality rate). Given a time series of annual catch and effort data, we would like to achieve the best fitting be...

Selectivity: theory, estimation, and application in fishery stock assessment models

Lake Nicaragua Fishery Resources