12 documents found, page 1 of 2
Conflicts in the coastal zone: human impacts on commercially important fish spe...
Brown, Elliot J; P Vasconcelos, Rita; Wennhage, Håkan; Bergström, Ulf; Støttrup, Josianne G; van de Wolfshaar, Karen; Millisenda, GiacomoCoastal ecosystems are ecologically, culturally, and economically important, and hence are under pressure from diverse human activities. We reviewed the literature for existing evidence of effects of human-induced habitat changes on exploited fish utilizing coastal habitats. We focused on fish species of the Northeast Atlantic for which fisheries advice is provided by International Council for the Exploration o...
Reconciling differences in natural tags to infer demographic and genetic connec...
Reis Santos, Patrick; Tanner, Susanne; Aboim, Maria Ana; P Vasconcelos, Rita; Laroche, Jean; Charrier, Grégory; Pérez, Montse; Presa, PabloProcesses regulating population connectivity are complex, ranging from extrinsic environmental factors to intrinsic individual based features, and are a major force shaping the persistence of fish species and population responses to harvesting and environmental change. Here we developed an integrated assessment of demographic and genetic connectivity of European flounder Platichthys flesus in the northeast Atla...
Extrinsic and intrinsic factors shape the ability of using otolith chemistry to...
Reis Santos, Patrick; P Vasconcelos, Rita; Tanner, Susanne; Fonseca, Vanessa; Cabral, Henrique; Gillanders, Bronwyn M.Reconstructing habitat use and environmental histories of fish via otolith chemistry relies on linking otolith chemical composition to the surrounding environment, as well as disentangling the consequences of ontogenetic or physiological effects that may mask environmental signals. We used multiple linear and linear mixed models to analyse the importance of environmental (temperature, salinity, water chemistry)...
Short-term variability of fish condition and growth in estuarine and shallow co...
Duarte, Irina; P Vasconcelos, Rita; França, Susana; Batista, Marisa Isabel; Tanner, Susanne; Cabral, Henrique; Fonseca, VanessaShort-term variability in condition factor: relative condition factor Kn; biochemical condition: RNA:DNA and protein content; and instantaneous growth rates were determined in estuarine and coastal fish. Dicentrarchus labrax, Solea senegalensis and Pomatoschistus microps were sampled in the Tejo estuary, while Trachurus trachurus was sampled in an adjacent shallow coastal area. Variation of condition indices wa...
Processes underpinning fish species composition patterns in estuarine ecosystem...
Henriques, Sofia; Cardoso, Pedro; Cardoso, Inês; Laborde, Marina I; Cabral, Henrique; P Vasconcelos, RitaAim We present the first global biogeographical regionalization of estuaries, assessing how dispersal limitation and/or environmental filtering mechanisms drive the patterns of fish assemblage composition among and within biogeographical regions. Location Estuaries worldwide. Methods A bootstrapped hierarchical cluster analysis was applied to define biogeographical regions based on pairwise beta diversity (βsim...
Biogeographical region and environmental conditions drive functional traits of ...
Henriques, Sofia; Guilhaumon, François; Villéger, Sébastien; Amoroso Ferreira Jorge, Sandra; França, Susana; Pasquaud, Stéphanie; Cabral, HenriqueAssessing trait-environment relationships is crucial for predicting effects of natural and human-induced environmental change on biota. We compiled a global database of fish assemblages in estuaries, functional traits of fishes and ecosystem features of estuaries. And we quantified the relative importance of ecosystem features as drivers of patterns of fish functional traits among estuaries worldwide (i.e. driv...
Current limitations of global conservation to protect higher vulnerability and ...
P Vasconcelos, Rita; Batista, Marisa Isabel; Henriques, SofiaEstuaries are threatened by intense and continuously increasing human activities. Here we estimated the sensitivity of fish assemblages in a set of estuaries distributed worldwide (based on species vulnerability and resilience), and the exposure to cumulative stressors and coverage by protected areas in and around those estuaries (from marine, estuarine and freshwater ecosystems, due to their connectivity). Vul...
Global patterns and predictors of fish species richness in estuaries
P Vasconcelos, Rita; Henriques, Sofia; França, Susana; Pasquaud, Stéphanie; Cardoso, Inês; Laborde, Marina I; Cabral, Henrique1. Knowledge of global patterns of biodiversity and regulating variables is indispensable to develop predictive models. 2. The present study used predictive modelling approaches to investigate hypotheses that explain the variation in fish species richness between estuaries over a worldwide spatial extent. Ultimately, such models will allow assessment of future changes in ecosystem structure and function as a re...
Habitat quality of estuarine nursery grounds: Integrating non-biological indica...
Fonseca, Vanessa; P Vasconcelos, Rita; Tanner, Susanne; França, Susana; Serafim, A.; Lopes, B.; Company, R.; Bebianno, M.J.; Costa, Maria JoséEstuaries are highly valuable ecosystems that provide various goods and services to society, such as food provision and supporting nursery habitats for various aquatic species. Estuarine habitat quality assessment is thus critical in managing both ecological and economic value. In this work, various biological and non-biological indicators of habitat quality in estuarine nursery areas were determined, encompass...
Habitat quality of estuarine nursery grounds: Integratingnon-biological indicat...
Fonseca, V.F.; P Vasconcelos, Rita; Tanner, S.E.; França, Susana; Serafim, A.; Lopes, B.; Company, R.; Bebianno, M.J.; Costa, Maria JoséEstuaries are highly valuable ecosystems that provide various goods and services to society, such as foodprovision and supporting nursery habitats for various aquatic species. Estuarine habitat quality assess-ment is thus critical in managing both ecological and economic value. In this work, various biological andnon-biological indicators of habitat quality in estuarine nursery areas were determined, encompassi...