Sergi Tudela - Academia.edu (original) (raw)

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Papers by Sergi Tudela

Research paper thumbnail of Driftnet fishing and biodiversity conservation: the case study of the large-scale Moroccan driftnet fleet operating in the Alboran Sea (SW Mediterranean)

Biological Conservation, 2005

Research paper thumbnail of Diversity and population structure of the European anchovy in the Mediterranean Sea (Abstract)

Research paper thumbnail of Ecosystem effects of fishing in the Mediterranean

Research paper thumbnail of An overwiew of their diversity, structure, functioning an anthropogenic impacts

Research paper thumbnail of Ecosystem effects of fishing in the Mediterranean: An analysis of the major threats of fishing gear and practices to biodiversity and marine habitats

Research paper thumbnail of Sustainability implications of honouring the Code of Conduct for Responsible Fisheries

Research paper thumbnail of Trophic flows, ecosystem structure and fishing impacts in the South Catalan Sea, Northwestern Mediterranean

Research paper thumbnail of Food-web dynamics in the South Catalan Sea ecosystem (NW Mediterranean) for 1978–2003

Research paper thumbnail of Electronic Tagging of Atlantic Bluefin Tuna (Thunnus thynnus, L.) Reveals Habitat Use and Behaviors in the Mediterranean Sea

PLOS ONE, 2015

We analyzed the movements of Atlantic tuna (Thunnus thynnus L.) in the Mediterranean Sea using da... more We analyzed the movements of Atlantic tuna (Thunnus thynnus L.) in the Mediterranean Sea using data from 2 archival tags and 37 pop-up satellite archival tags (PAT). Bluefin tuna ranging in size from 12 to 248 kg were tagged on board recreational boats in the western Mediterranean and the Adriatic Sea between May and September during two different periods (2000 to 2001 and 2008 to 2012). Although tuna migrations between the Mediterranean Sea and the Atlantic Ocean have been well reported, our results indicate that part of the bluefin tuna population remains in the Mediterranean basin for much of the year, revealing a more complex population structure. In this study we demonstrate links between the western Mediterranean, the Adriatic and the Gulf of Sidra (Libya) using over 4336 recorded days of location and behavior data from tagged bluefin tuna with a maximum track length of 394 days. We described the oceanographic preferences and horizontal behaviors during the spawning season for 4 adult bluefin tuna. We also analyzed the time series data that reveals the vertical behavior of one pop-up satellite tag recovered, which was attached to a 43.9 kg tuna. This fish displayed a unique diving pattern within 16 days of the spawning season, suggesting a use of the thermocline as a thermoregulatory mechanism compatible with spawning. The results obtained hereby confirm that the Mediterranean is clearly an important habitat for this species, not only as spawning ground, but also as an overwintering foraging ground.

Research paper thumbnail of Feeding of anchovy Engraulis encrasicolus larvae in the north-west Mediterranean

Journal of the Marine Biological Association of the UK, 2002

Research paper thumbnail of Bluefin Tuna patterns discovered by electronic tagging in the Mediterranean Sea and in Atlantic waters of Morocco (2008-2012)

Research paper thumbnail of A Validated Methodology for Genetic Identification of Tuna Species (Genus Thunnus)

Research paper thumbnail of Potential effect of an anchovy-mediated pump on the vertical availability of nitrogen for primary production in the Catalan Sea (northwest Mediterranean)

Journal of Sea Research, 1999

The potential effect on the pelagic ecosystem of nitrogen recycling by anchovies (Engraulis encra... more The potential effect on the pelagic ecosystem of nitrogen recycling by anchovies (Engraulis encrasicolus) in a major spawning area of the Catalan Sea (NW Mediterranean) was assessed by comparing estimates of N excretion in the form of ammonia and urea with the N requirements of primary production. The influence of diel vertical migrations of anchovies on primary production in the

Research paper thumbnail of An ecological model of the Northern and Central Adriatic Sea: Analysis of ecosystem structure and fishing impacts

Journal of Marine Systems, 2007

Research paper thumbnail of Trophic flows, ecosystem structure and fishing impacts in the South Catalan Sea, Northwestern Mediterranean

Journal of Marine Systems, 2006

Research paper thumbnail of Genetic structure of the European anchovy, Engraulis encrasicolus l., in the north-west Mediterranean

Journal of Experimental Marine Biology and Ecology, 1999

Research paper thumbnail of Developing an operational reference framework for fisheries management on the basis of a two-dimensional index of ecosystem impact

ICES Journal of Marine Science, 2005

Research paper thumbnail of Closer to reality: Reconstructing total removals in mixed fisheries from Southern Europe

Research paper thumbnail of Morphological variability in a Mediterranean, genetically homogeneous population of the European anchovy, Engraulis encrasicolus

Research paper thumbnail of Decadal changes in a NW Mediterranean Sea food web in relation to fishing exploitation

Ecological Modelling, 2009

Research paper thumbnail of Driftnet fishing and biodiversity conservation: the case study of the large-scale Moroccan driftnet fleet operating in the Alboran Sea (SW Mediterranean)

Biological Conservation, 2005

Research paper thumbnail of Diversity and population structure of the European anchovy in the Mediterranean Sea (Abstract)

Research paper thumbnail of Ecosystem effects of fishing in the Mediterranean

Research paper thumbnail of An overwiew of their diversity, structure, functioning an anthropogenic impacts

Research paper thumbnail of Ecosystem effects of fishing in the Mediterranean: An analysis of the major threats of fishing gear and practices to biodiversity and marine habitats

Research paper thumbnail of Sustainability implications of honouring the Code of Conduct for Responsible Fisheries

Research paper thumbnail of Trophic flows, ecosystem structure and fishing impacts in the South Catalan Sea, Northwestern Mediterranean

Research paper thumbnail of Food-web dynamics in the South Catalan Sea ecosystem (NW Mediterranean) for 1978–2003

Research paper thumbnail of Electronic Tagging of Atlantic Bluefin Tuna (Thunnus thynnus, L.) Reveals Habitat Use and Behaviors in the Mediterranean Sea

PLOS ONE, 2015

We analyzed the movements of Atlantic tuna (Thunnus thynnus L.) in the Mediterranean Sea using da... more We analyzed the movements of Atlantic tuna (Thunnus thynnus L.) in the Mediterranean Sea using data from 2 archival tags and 37 pop-up satellite archival tags (PAT). Bluefin tuna ranging in size from 12 to 248 kg were tagged on board recreational boats in the western Mediterranean and the Adriatic Sea between May and September during two different periods (2000 to 2001 and 2008 to 2012). Although tuna migrations between the Mediterranean Sea and the Atlantic Ocean have been well reported, our results indicate that part of the bluefin tuna population remains in the Mediterranean basin for much of the year, revealing a more complex population structure. In this study we demonstrate links between the western Mediterranean, the Adriatic and the Gulf of Sidra (Libya) using over 4336 recorded days of location and behavior data from tagged bluefin tuna with a maximum track length of 394 days. We described the oceanographic preferences and horizontal behaviors during the spawning season for 4 adult bluefin tuna. We also analyzed the time series data that reveals the vertical behavior of one pop-up satellite tag recovered, which was attached to a 43.9 kg tuna. This fish displayed a unique diving pattern within 16 days of the spawning season, suggesting a use of the thermocline as a thermoregulatory mechanism compatible with spawning. The results obtained hereby confirm that the Mediterranean is clearly an important habitat for this species, not only as spawning ground, but also as an overwintering foraging ground.

Research paper thumbnail of Feeding of anchovy Engraulis encrasicolus larvae in the north-west Mediterranean

Journal of the Marine Biological Association of the UK, 2002

Research paper thumbnail of Bluefin Tuna patterns discovered by electronic tagging in the Mediterranean Sea and in Atlantic waters of Morocco (2008-2012)

Research paper thumbnail of A Validated Methodology for Genetic Identification of Tuna Species (Genus Thunnus)

Research paper thumbnail of Potential effect of an anchovy-mediated pump on the vertical availability of nitrogen for primary production in the Catalan Sea (northwest Mediterranean)

Journal of Sea Research, 1999

The potential effect on the pelagic ecosystem of nitrogen recycling by anchovies (Engraulis encra... more The potential effect on the pelagic ecosystem of nitrogen recycling by anchovies (Engraulis encrasicolus) in a major spawning area of the Catalan Sea (NW Mediterranean) was assessed by comparing estimates of N excretion in the form of ammonia and urea with the N requirements of primary production. The influence of diel vertical migrations of anchovies on primary production in the

Research paper thumbnail of An ecological model of the Northern and Central Adriatic Sea: Analysis of ecosystem structure and fishing impacts

Journal of Marine Systems, 2007

Research paper thumbnail of Trophic flows, ecosystem structure and fishing impacts in the South Catalan Sea, Northwestern Mediterranean

Journal of Marine Systems, 2006

Research paper thumbnail of Genetic structure of the European anchovy, Engraulis encrasicolus l., in the north-west Mediterranean

Journal of Experimental Marine Biology and Ecology, 1999

Research paper thumbnail of Developing an operational reference framework for fisheries management on the basis of a two-dimensional index of ecosystem impact

ICES Journal of Marine Science, 2005

Research paper thumbnail of Closer to reality: Reconstructing total removals in mixed fisheries from Southern Europe

Research paper thumbnail of Morphological variability in a Mediterranean, genetically homogeneous population of the European anchovy, Engraulis encrasicolus

Research paper thumbnail of Decadal changes in a NW Mediterranean Sea food web in relation to fishing exploitation

Ecological Modelling, 2009

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