RT journal article
T1 Modelling relationships between fisheries landings and oceanographic variables: A case study in adjacent areas of Gibraltar Strait
A1 Domínguez Bustos, Ángel Rafael
A1 Castro-Gutiérrez, Jairo
A1 Gómez Enri, Jesús
A1 Cabrera Castro, Remedios
A2 Biología
A2 Física Aplicada
K1 Generalised Additive Models
K1 Gulf of Cadiz
K1 Management
K1 North Alboran Sea
K1 Small pelagics
AB Small pelagics are one of the most important groups of fishes in the world due to their ecologicsignificance in the trophic web. Small pelagics are the main target of the world’s fishery industryand European anchovy, European sardine, mackerel and horse mackerel represent 43.7% of the totallandings in Andalusia (southern Spain). The main objective of this study was to analyse the differentfactors that could be affecting the abundance of these small pelagics in the two main andalusian fishingareas: Gulf of Cadiz and North Alboran Sea. For this purpose, multiple Generalised Additive Models(GAM) were performed using different oceanographic variables and landing time series as explanatoryvariables. The explanatory variables were also included with up to a three-year lag. A total of 4776partial models were performed and eight models (the best for each species per area) were extracted foranalysis. GAM models explained up to 61% of the total variance. Most of the models showed a strongnon-linear relationship between different fish landings, and all models showed primary production asa key environmental factor to explain variations in the abundance of these small pelagics. However,results also revealed differences in the fishing pressure for all species in both fishing grounds. Theuse of non-linear models as an analytic tool could be useful for improving the knowledge on smallpelagics and the management of the small pelagics fishing industry
PB Elsevier
SN 2352-4855
YR 2023
FD 2023
LK http://hdl.handle.net/10498/37945
UL http://hdl.handle.net/10498/37945
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 21-sep-2026