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Auteur (down) Theuerkauff, D.; Rivera-Ingraham, G.A.; Roques, J.A.C.; Azzopardi, L.; Bertini, M.; Lejeune, M.; Farcy, E.; Lignot, J.-H.; Sucre, E. doi  openurl
  Titre Salinity Variation in a Mangrove Ecosystem: A Physiological Investigation to Assess Potential Consequences of Salinity Disturbances on Mangrove Crabs Type Article scientifique
  Année 2018 Publication Revue Abrégée Zool. Stud.  
  Volume 57 Numéro Pages 36  
  Mots-Clés Bioenergetics; blue-crab; callinectes-sapidus; carcinus-maenas; Decapods; dilocarcinus-pagei brachyura; eriocheir-sinensis; fiddler-crabs; fresh-water; grapsid crabs; Mangrove; Osmoregulation; oxidative stress; Salinity-induced oxidative stress; waste-water treatment  
  Résumé Dimitri Theuerkauff, Georgina A. Rivera-Ingraham, Jonathan A.C. Roques, Laurence Azzopardi, Marine Bertini, Mathilde Lejeune, Emilie Farcy, Jehan-Herve Lignot, and Elliott Sucre (2018) Salinity is one of the main environmental factors determining coastal species distribution. However, in the specific case of mangrove crabs, salinity selection cannot be understood through ecological approaches alone. Yet understanding this issue is crucial in the context of mangrove conservation, since this ecosystem is often used as biofilter of (low-salinity) wastewater. Crabs are keystone species in this mangrove ecosystem and are differentially affected by salinity. We hypothesize that crab salinity selection may be partly explained by specific salinity-induced physiological constraints associated with osmoregulation, energy and redox homeostasis. To test this, the response to salinity variation was analysed in two landward mangrove crabs: the fiddler crab Tubuca urvillei, which inhabits low-salinity areas of the mangrove, and the red mangrove crab Neosarmatium meinerti, which lives in areas with higher salinity. Results confirm that both species are strong hypo-/hyper-osmoregulators that deal easily with large salinity variations. Such shifts in salinity do not induce changes in energy expenditure (measured as oxygen consumption) or in the production of reactive oxygen species. However, T. urvillei is physiologically suited to habitats with brackish water, since it presents i) high hemolymph osmolalities over a wider range of salinities and lower osmoregulatory capacity in seawater, ii) high Na+/K+-ATPase (NKA) activity in the posterior osmoregulatory gills and iii) a thicker osmoregulatory epithelium along the posterior gill lamellae. Therefore, while environmental salinity alone cannot directly explain fiddler and red mangrove crab distributions, our data suggest that salinity selection is indeed influenced by specific physiological adjustments.  
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  Langue English Langue du Résumé Titre Original  
  Éditeur de collection Titre de collection Titre de collection Abrégé  
  Volume de collection Numéro de collection Edition  
  ISSN 1021-5506 ISBN Médium  
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  Numéro d'Appel MARBEC @ alain.herve @ collection 2424  
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Auteur (down) Teulier, L.; Thoral, E.; Queiros, Q.; McKenzie, D.J.; Roussel, D.; Dutto, G.; Gasset, E.; Bourjea, J.; Saraux, C. doi  openurl
  Titre Muscle bioenergetics of two emblematic Mediterranean fish species: Sardina pilchardus and Sparus aurata Type Article scientifique
  Année 2019 Publication Revue Abrégée Comp. Biochem. Physiol. A-Mol. Integr. Physiol.  
  Volume 235 Numéro Pages 174-179  
  Mots-Clés aerobic capacity; Bioenergetics; gait transition; Lipids; Marine fishes; metabolic fuels; pathways; physiology; Red muscle; responses; skeletal-muscle; slow; swimming performance; temperature  
  Résumé We investigated links between swimming behavior and muscle bioenergetics in two emblematic Mediterranean fish species that have very different ecologies and activity levels. European sardines Sardina pilchardus are pelagic, they swim aerobically, school constantly and have high muscle fat content. Gilthead seabream Sparus aurata are bentho-pelagic, they show discontinuous spontaneous swimming patterns and store less fat in their muscle. Estimating the proportion of red and white muscle phenotypes, sardine exhibited a larger proportion of red muscle (similar to 10% of the body mass) compared to gilthead seabream (similar to 5% of the body mass). We firstly studied red and white muscle fiber bioenergetics, using high-resolution respirometers, showing a 4-fold higher oxidation capacity for red compared to white muscle. Secondly, we aimed to compare the red muscle ability to oxidize either lipids or carbohydrates. Sardine red muscle had a 3-fold higher oxidative capacity than gilthead seabream and a greater capacity to oxidize lipids. This study provides novel insights into physiological mechanisms underlying the different lifestyles of these highly-prized species.  
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  Langue English Langue du Résumé Titre Original  
  Éditeur de collection Titre de collection Titre de collection Abrégé  
  Volume de collection Numéro de collection Edition  
  ISSN 1095-6433 ISBN Médium  
  Région Expédition Conférence  
  Notes WOS:000481561100018 Approuvé pas de  
  Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 2629  
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Auteur (down) Sadoul, B.; Augustine, S.; Zimmer, E.; Begout, M.-L.; Vijayan, M.M. doi  openurl
  Titre Prediction of long-term variation in offspring metabolism due to BPA in eggs in rainbow trout using the DEB model Type Article scientifique
  Année 2019 Publication Revue Abrégée J. Sea Res.  
  Volume 143 Numéro Pages 222-230  
  Mots-Clés acceleration; bisphenol-a bpa; energetics; energy budget model; exposure; fathead minnow; growth; oncorhynchus-mykiss; starvation; zebrafish  
  Résumé Bisphenol A (BPA) in eggs prior to fertilization was found to induce long-term metabolic disturbances in juvenile rainbow trout (Oncorhynchus mykiss). Here we describe these imprinting effects in a Dynamic Energy Budget (DEB) framework, which allows interpretation of the data in an energy allocation context. First, DEB parameters for control rainbow trout were optimized using data extracted from 12 studies in the literature. Several modes of action on DEB parameters were then tested in order to correctly predict weight differences observed in rainbow trout in response to 5 different concentrations of BPA in eggs prior to fertilization. Reduced energy conductance (v) over dot at day 0, followed by an exponential recovery, was found to closely fit the experimental data. Effects on (v) over dot lasted beyond the disappearance of the chemical from the body, suggesting an imprinting effect of BPA on energy mobilization from the reserve. Our model predicts that early changes in DEB parameters lead to permanent and irreversible impairment of the metabolic growth acceleration in rainbow trout.  
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  Langue English Langue du Résumé Titre Original  
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  Volume de collection Numéro de collection Edition  
  ISSN 1385-1101 ISBN Médium  
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  Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 2473  
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Auteur (down) Marras, S.; Killen, S.S.; Lindström, J.; McKenzie, D.J.; Steffensen, J.F.; Domenici, P. url  doi
openurl 
  Titre Fish swimming in schools save energy regardless of their spatial position Type Article scientifique
  Année 2015 Publication Revue Abrégée Behav Ecol Sociobiol  
  Volume 69 Numéro 2 Pages 219-226  
  Mots-Clés Collective behaviour; Ecophysiology; Energetics; Hydrodynamics  
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  Volume de collection Numéro de collection Edition  
  ISSN 0340-5443 ISBN Médium  
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  Numéro d'Appel MARBEC @ alain.herve @ collection 1285  
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Auteur (down) Bodin, N.; Chassot, E.; Sardenne, F.; Zudaire, I.; Grande, M.; Dhurmeea, Z.; Murua, H.; Barde, J. url  doi
openurl 
  Titre Ecological data for western Indian Ocean tuna Type Article scientifique
  Année 2018 Publication Revue Abrégée Ecology  
  Volume 99 Numéro 5 Pages 1245-1245  
  Mots-Clés energetics; fatty acids; lipids; morphometrics; multi-tissues; proteins; stable isotopes; trophic ecology; tropical marine ecosystems; tuna fisheries  
  Résumé Tuna are marine apex predators that inhabit the tropical and sub-tropical waters of the Indian Ocean where they support socially and economically important fisheries. Key component of pelagic communities, tuna are bioindicator species of anthropogenic and climate-induced changes through modifications of the structure and related energy-flow of food webs and ecosystems. The IndianEcoTuna dataset provides a panel of ecological tracers measured in four soft tissues (white muscle, red muscle, liver, gonads) from 1,364 individuals of four species, i.e., the albacore (ALB, Thunnus alalunga), the bigeye (BET, T. obesus), the skipjack (SKJ, Katsuwomus pelamis), and the yellowfin (YFT, T. albacares), collected throughout the western Indian Ocean from 2009 to 2015. Sampling was carried out during routine monitoring programs, at sea by observers onboard professional vessels or at landing. For each record, the type of fishing gear, the conservation mode, as well as the fishing date and catch location are provided. Individuals were sampled to span a wide range of body sizes: 565 ALB with fork length from 58 to 118 cm, 155 BET from 29.5 to 173 cm, 304 SKJ from 30 to 74 cm, and 340 YFT from 29 to 171.5 cm. The IndianEcoTuna dataset combines: (1) 9,512 records of carbon and nitrogen stable isotopes (percent element weights, δ13C and δ15N values) in 1,185 fish, (2) 887 concentrations of total proteins in 242 fish, (3) 8,356 concentrations of total lipids and three lipid classes (triacylglycerols TAG; phospholipids PL; sterols ST) in 695 fish, and (4) 1,150 and 1,033 profiles of neutral and polar fatty acids in 397 and 342 fish, respectively. Information on sex and weights of the whole fish, gonads, liver and stomach is provided. Because of the essential trophic role and wide-ranging of tuna in marine systems, and the large panel of tropho-energetic tracers and derived-key quantitative parameters provided (e.g., niche width, trophic position, condition indices), the IndianEcoTuna dataset should be of high interest for global and regional research on marine trophic ecology and food web analysis, as well as on the impacts of anthropogenic changes on Indian Ocean marine ecosystems. There are no copyright restrictions for research and/or teaching purposes. Usage of the dataset must include citation of this Data Paper.  
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  Langue en Langue du Résumé Titre Original  
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  ISSN 1939-9170 ISBN Médium  
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  Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 2373  
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