Consulta: creatorFacets:"Bueno-pardo, Juan"
Registros recuperados: 3
Data/hora: 04/06/2024 05:22:48

Trends and drivers of marine fish landings in Portugal since its entrance in the European Union
Provedor de dados: 5
Autores: Bueno-pardo, Juan; Pierce, Graham J; Cabecinha, Edna; Grilo, Catarina; Assis, Jorge; Valavanis, Vasilis; Pita, Cristina; Dubert, Jesus-pedreira; Leitão, Francisco; Queiroga, Henrique.
Marine landings in Portugal have decreased at a higher rate than fishing effort in the last 20 years. Identifying the variables driving the quantity and composition of landings is pivotal to understand the dynamics of the fisheries sector, which entails complex social and environmental aspects. In this study, we investigate the main drivers of marine fish landings in continental Portugal between 1989 and 2014. To identify common trends in time series, and quantify the importance of environmental factors, we applied a dynamic factor analysis considering four regions and three types of gear (trawling, purse-seine, and a multi-gear fishery). Our results show the importance of fishing effort as the most relevant factor driving marine landings in Portugal, both...
Tipo: Text
Palavras-chave: Fisheries; Landings; Landings per unit effort; Portugal; Purse-seine; Trawling.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00609/72090/70918.pdf

Integration of bioenergetics in an individual-based model to hindcast anchovy dynamics in the Bay of Biscay
Provedor de dados: 5
Autores: Bueno-pardo, Juan; Petitgas, Pierre; Kay, Susan; Huret, Martin.
The population of European anchovy of the Bay of Biscay collapsed at the beginning of the 21st century, causing the closure of its fishery between 2005 and 2010. In order to study both the human and environmental causes of the anchovy population dynamics, an approach coupling individual bioenergetics to an individual-based model was applied between 2000 and 2015. This modelling framework was forced with outputs from a physical–biogeochemical model. In addition to a base-case scenario with realistic forcing, alternative scenarios were run without inter-annual variability in either fishing mortality or environmental conditions. During the decrease in population biomass, a high fishing pressure coincided with a combination of environmental variables promoting...
Tipo: Text
Palavras-chave: Anchovy; Bay of Biscay; Dynamic Energy Budget; Fishery; Harvest control rule; Individual-based model; Population collapse.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00598/70984/69272.pdf

Supply and larval traits at metamorphosis of a coastal marine invertebrate with a bi-phasic life cycle under contrasting oceanographic conditions
Provedor de dados: 5
Autores: Rey, Felisa; Silva Neto, Gina M.; Bueno-pardo, Juan; Bispo, Regina; Calado, Ricardo.
Patterns of larval supply and larval condition at metamorphosis play key roles in the structure and dynamics of marine populations. Hence, biological and environmental conditions driving the dispersion of larval individuals, shape early life phenotypes, and influence their survival and post-settlement success. We performed a study over two consecutive years at Ria de Aveiro (Portugal), a coastal lagoon influenced by upwelling regimens in the North-eastern Atlantic. This study assessed the effect of contrasting oceanographic conditions on larval supply and larval traits at metamorphosis of the green crab Carcinus maenas. Crab megalopae were daily sampled and monitored in the laboratory until metamorphosis. Environmental conditions experienced by larvae in...
Tipo: Text
Palavras-chave: Carcinus maenas; Bi-phasic life cycles; Invertebrate larvae; Phenotypic variations; Time series; Upwelling; East Atlantic; Portugal; Ria de Aveiro.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00514/62599/66957.pdf