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| Brind'Amour, Anik; Rochet, Marie-joelle; Ordines, Francesc; Hosack, Geoff; Berthele, Olivier; Merigot, Bastien; Carbonara, Pierluigi; Follesa, Maria Cristina; Jadaud, Angelique; Lefkaditou, Evgenia; Maiorano, Porzia; Peristeraki, Panagiota; Mannini, Alessandro; Rabiller, Manuella; Spedicato, Maria Teresa; Tserpes, George; Trenkel, Verena. |
| Functional groups are sets of species that play a similar role in a food web. We defined functional groups of fish species based on their morphological characteristics, while using expert knowledge for invertebrates. We measured 9 morphological traits of 72 fish species, and carried out multivariate analyses to assign fish species to functional groups. The analysis identified 9 trait-based fish functional groups to which were added 3 expert-based invertebrate functional groups. The habitat (position in the water column) and potential diet of each group were identified from the literature. Using the MEDITS bottom trawl survey data collected at 10 to 800 m depth, we calculated relative change in the 12 fish and invertebrate functional group biomasses for 12... |
| Tipo: Text |
Palavras-chave: Morphological traits; Community models; Functional network; Functional groups; Mediterranean Sea; Temporal trends; Fish; Shellfish. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00363/47382/47475.pdf |
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| Gardes, Thomas; Debret, Maxime; Copard, Yoann; Coynel, Alexandra; Deloffre, Julien; Fournier, Matthieu; Revillon, Sidonie; Nizou, Jean; Develle, Anne-lise; Sabatier, Pierre; Marcotte, Stéphane; Patault, Edouard; Faivre, Quentin; Portet-koltalo, Florence. |
| Anthropogenic impacts on rivers have increased significantly over the past ~150 years, particularly at the beginning of the industrial revolution. Among other signs, this impact is manifested through the addition of trace metals and metalloid elements to rivers. The Eure River watershed in France covers an area of 6017 km2 and is a major tributary of the Seine estuary. It is not exempt from anthropogenic pressures and has been exposed to significant metal discharges over the last 80 years. The average concentrations of metals (i.e., Cr, Co, Ni, Cu, Zn, Ag, Cd, Sb, and Pb), in suspended particulate matter currently transported by the river are high compared to the local geochemical background. Moreover, the lack of correlation between concentration... |
| Tipo: Text |
Palavras-chave: Anthropogenic impacts; Trace metals and metalloids; Eure River watershed; Temporal trends; Particulate metal flux; Pb isotopes. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00618/73046/72159.pdf |
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| Caurant, Florence; Aubail, A; Lahaye, V; Van Canneyt, O; Rogan, E; Lopez, A; Addink, M; Churlaud, C; Robert, M; Bustamante, Paco. |
| Lead concentrations and isotopic composition have been measured in bone and teeth of small cetaceans belonging to three species (Delphinus delphis, Phocoena phocoena and Stenella coeruleoalba), to evaluate the toxicological risk and to determine sources of lead in the European waters. Lead concentrations, far lower than threshold value inducing toxic effects in human, were higher in teeth than in bones, but highly correlated between the two tissues (r = 0.92, p < 0.001). Large variations of Pb-206/Pb-207 values in bone tissue showed that cetaceans must be submitted to various atmospheric influences. No geographical differences appeared which is consistent with studies on their distribution indicating seasonal movements between Brittany waters and the... |
| Tipo: Text |
Palavras-chave: Lead; Hard tissues; Heavy metals; Harbour porpoises; Striped dolphins; Common dolphins; Northeast Atlantic; Temporal trends; Biomonitoring. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-1813.pdf |
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| Tsagarakis, Konstantinos; Mytilineou, Chryssi; Haralabous, John; Lorance, Pascal; Politou, Chrissi-yianna; Dokos, John. |
| Data from the MEDITS bottom trawl surveys in the Eastern Ionian Sea, covering a depth range of 28 to 845 m were analysed for the period 1998-2008. For each trawling location, environmental and geographical parameters were recorded, while biomass, abundance, biodiversity and size-based metrics were estimated for the total megafaunal community, as well as for four taxonomic sub-communities (Osteichthyes, Chondrichthyes, Crustacea and Cephalopoda) which were expected to respond differently to environmental changes and fishing. In addition, biomass and abundance of ten species selected based on commercial interest, depth range and life history traits were explored, with particular emphasis on deep-sea species. Fishing effort data collected during the study... |
| Tipo: Text |
Palavras-chave: Biodiversity; Fisheries impacts; Demersal community; Survey indicators; Temporal trends; Mediterranean Sea. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00176/28761/27230.pdf |
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| Munschy, Catherine; Bely, Nadege; Pollono, Charles; Aminot, Yann. |
| Perfluoroalkyl substances (PFASs) were investigated in filter-feeding shellfish collected from 2013 to 2017 along the English Channel, Atlantic and Mediterranean coasts of France. PFOS (perfluorooctane sulfonate), PFTrDA (perfluorotridecanoic acid), PFTeDA (perfluorotetradecanoic acid), PFDoDA (perfluorododecanoic acid) and PFUnDA (perfluoroundecanoic acid) were detected in more than 80% of samples, thus indicating widespread contamination of the French coastal environment by these chemicals. The distribution of PFAS concentrations showed differences according to sampling locations and years. PFOS was the predominant PFAS in most samples collected from English Channel and Atlantic coasts until 2014, but the opposite was observed in 2015, 2016 and 2017,... |
| Tipo: Text |
Palavras-chave: PFOS; PFCAs; Shellfish; Levels; Profiles; Temporal trends. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00491/60281/63706.pdf |
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| Bailey, Sarah A.; Brown, Lyndsay; Campbell, Marnie L.; Canning‐clode, João; Carlton, James T.; Castro, Nuno; Chainho, Paula; Chan, Farrah T.; Creed, Joel C.; Curd, Amelia; Darling, John; Fofonoff, Paul; Galil, Bella S.; Hewitt, Chad L.; Inglis, Graeme J.; Keith, Inti; Mandrak, Nicholas E.; Marchini, Agnese; Mckenzie, Cynthia H.; Occhipinti‐ambrogi, Anna; Ojaveer, Henn; Pires‐teixeira, Larissa M.; Robinson, Tamara B.; Ruiz, Gregory M.; Seaward, Kimberley; Schwindt, Evangelina; Son, Mikhail O.; Therriault, Thomas W.; Zhan, Aibin; Hussey, Nigel. |
| Aim The introduction of aquatic non‐indigenous species (ANS) has become a major driver for global changes in species biogeography. We examined spatial patterns and temporal trends of ANS detections since 1965 to inform conservation policy and management. Location Global. Methods We assembled an extensive dataset of first records of detection of ANS (1965–2015) across 49 aquatic ecosystems, including the (a) year of first collection, (b) population status and (c) potential pathway(s) of introduction. Data were analysed at global and regional levels to assess patterns of detection rate, richness and transport pathways. Results An annual mean of 43 (±16 SD) primary detections of ANS occurred—one new detection every 8.4 days for 50 years. The global rate of... |
| Tipo: Text |
Palavras-chave: Aquatic non-indigenous species; Biological invasions; Detection rate; Inventory; Long-term dataset; Population status; Richness; Spatial patterns; Temporal trends; Transport pathways. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00653/76496/77661.pdf |
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