9 documents found, page 1 of 1
Avaliação socioeconómica e cultural da pesca do salmão-do-atlântico em Portugal
Raposo, I.; Silva, S.; Alexandre, C.M.; Stratoudakis, Y.; Belo, A.F.; Mateus, C.S.; Lança, M.J.; Almeida, P.R.O salmão-do-atlântico (Salmo salar) é uma espécie anádroma emblemática do Hemisfério Norte e autóctone em Portugal. Segundo a IUCN o seu estatuto de conservação global é Pouco Preocupante (LC), mas em Portugal encontra-se classificado como Criticamente em Perigo (CR), sendo provavelmente a população desta espécie mais ameaçada à escala global. A sua abundância na Europa diminuiu em toda a área nativa, fruto de ...
Riverine communities and management systems for anadromous fisheries in the Ibe...
Stratoudakis, Y.; Antunes, C.; Correia, C.; Belo, A.F.; Almeida, P.R.Anadromous fish challenge human jurisdictions and are exposed to cumulative pressures originating in the marine, freshwater, and terrestrial realms. Here, a detailed questionnaire survey to anadromous fishers (river Mondego, n = 35; international river Minho/Miño, n = 38) assesses and compares perceptions on sustainability and management for important small-scale estuarine and inland fisheries in the NW Iberian...
Evaluating movement and populations Dynamics of meagre (Argyrosomus regius) usi...
Tanner, S.; Reis-Santos, P.; Alexandre, C.; Almeida, P.R.; Alves, J.; Amorim, C.; Costa, J.L.; Domingos, I.; Fonseca, P.; Lança, M.J.; Marques, J.P.Meagre (Argyrosomus regius) forms ephemeral aggregations during the reproductive season that, given the large size and high commercial value of this species, lead to increased risk of overexploitation. Data paucity together with the inability to apply classical fisheries assessment techniques and management measures due to the seasonally-elusive dynamics of adult meagre, and the diffuse nature of artisanal fish...
Improving participated management under poor fishers’ organization: Anadromous ...
Almeida, P.R.; Stratoudakis, Y.; Belo, A.F.; Correia, C.River defragmentation works and an effective fishway with a monitoring station have created conditions for adaptive fishery management in the estuary of Mondego River in central Portugal. Since 2013 fishers, scientists and authorities annually meet to update data for anadromous fish and rules for the upcoming fishing season. Meetings provide an opportunity for approximately 100 licenced fishers to participate, ...
Exploited anadromous fish in Portugal: Suggested direction for conservation and...
Stratoudakis, Y.; Mateus, C.S.; Quintella, B.R.; Antunes, C.; Almeida, P.R.Sea lamprey (Petromyzon marinus) and allis shad (Alosa alosa) have been fished for centuries in mainland Portugal during their upstream spawning migration. Here, biological information is compared for the two species and governance and monitoring data from Portugal are reviewed to propose species-specific courses of future action. Despite a national fisheries legislation common for the two species and the desig...
Behavioural responses of sardines Sardina pilchardus to simulated purse-seine c...
Marçalo, A.; Araújo, J.; Pousão-Ferreira, P.; Pierce, G. J.; Stratoudakis, Y.; Erzini, K.The behavioural effects of confinement of sardine Sardina pilchardus in a purse seine were evaluated through three laboratory experiments simulating the final stages of purse seining; the process of slipping (deliberately allowing fishes to escape) and subsequent exposure to potential predators. Effects of holding time (the time S. pilchardus were held or entangled in the simulation apparatus) and S. pilchardus...
Behavioural responses of sardines Sardina pilchardus to simulated purse-seine c...
Marçalo, A.; Pousão-Ferreira, P.; Pierce, G. J.; Stratoudakis, Y.; Erzini, KarimThe behavioural effects of confinement of sardine Sardina pilchardus in a purse seine were evaluated through three laboratory experiments simulating the final stages of purse seining; the process of slipping (deliberately allowing fishes to escape) and subsequent exposure to potential predators. Effects of holding time (the time S. pilchardus were held or entangled in the simulation apparatus) and S. pilchardus...
Effect of simulated purse seine fishing on acclimated sardines and post-fishing...
Marçalo, A.; Araújo, J.; Pousão-Ferreira, P.; Erzini, Karim; Stratoudakis, Y.The fate of fish deliberately released (slipped) during purse seining is poorly studied and estimating unaccounted mortality rates in pelagic fisheries has been difficult and imprecise.
Physiological, physical and behavioural responses of sardine to purse seine fis...
Marçalo, A.; Pousão-Ferreira, P.; Erzini, Karim; Stratoudakis, Y.Release of excess/unwanted catch in many commercial fisheries results in some immediate fish mortality and an unknown post-release fate for most escapees.