5 documents found, page 1 of 1
Revealing the role of crab as bait in octopus fishery: an ecological and fishin...
Leitão, Francisco; Monteiro, J. N.; Cabral, Pedro; Teodosio, Maria; Roa-Ureta, Ruben H.In southern Portugal, artisanal octopus fisheries play an important socioeconomic role. Live crab bait in traps was used up to 2010 and banned in 2012. Such regulation, based on co-management advice, was not established under a scientific fundament. As a result, a long-standing controversy ensued with some fishing associations claiming that live crab bait increased fishing effort and exploitation rates and ther...
Influence of oceanic and climate conditions on the early life history of Europe...
Pinto, M.; Monteiro, J. N.; Crespo, D.; Costa, F.; Rosa, J.; Primo, A. L.; Pardal, M. A.; Martinho, F.Understanding how marine fish early-life history is affected in the long-term by environmental and oceanographic factors is fundamental given its importance to population dynamics and connectivity. This work aimed at determining the influence of these processes on the interannual variability in hatch day and early-life growth patterns of European seabass, over a seven-year period (2011-2017) in the Atlantic Ibe...
Effects of climate variability on an estuarine green crab Carcinus maenas popul...
Monteiro, J. N.; Pinto, Miguel; Crespo, Daniel; Pardal, Miguel A.; Martinho, FilipeThe increase in frequency and intensity of extreme climate events over the last few decades has been leading to profound changes in estuarine and marine ecosystems worldwide, with strong implications for the species inhabiting these ecosystems as well as for the services provided by them. In this study, we analysed the effects of climate variability on the temporal and spatial variations in population dynamics ...
Climate change vulnerability assessment of the main marine commercial fish and ...
Bueno-Pardo, Juan; Nobre, Daniela; Monteiro, J. N.; Sousa, Pedro M.; Costa, Eudriano; Baptista, Vânia; Ovelheiro, Andreia; Vieira, Vasco; Chicharo, LuisThis is the first attempt to apply an expert-based ecological vulnerability assessment of the effects of climate change on the main marine resources of Portugal. The vulnerability, exposure, sensitivity, adaptive capacity, and expected directional effects of 74 species of fish and invertebrates of commercial interest is estimated based on criteria related to their life-history and level of conservation or explo...
Effect of bait type on the octopus fishery in Algarve, Southern Portugal
Leitão, Francisco; Bueno-Pardo, Juan; Ovelheiro, Andreia; Monteiro, J. N.; Nobre, Daniela; Teodosio, MAIn Algarve, southern Portugal, a fishery regulation was established forbidding the use of live crab as bait for the octopus fishing. Such a regulation was not established under a scientific fundament. The objective of this work was to identify if using live crab as bait affects the octopus fishery. Time series (1989–2015) were analysed in order to calculate octopus catch rates (as Landing Per Unit Effort or LPU...