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Auteur |
Brosse, S.; Beauchard, O.; Blanchet, S.; Dürr, H.H.; Grenouillet, G.; Hugueny, B.; Lauzeral, C.; Leprieur, F.; Tedesco, P.A.; Villeger, S.; Oberdorff, T. |
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Titre |
Fish-SPRICH: a database of freshwater fish species richness throughout the World |
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Article scientifique |
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Année |
2013 |
Publication |
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Revue Abrégée |
Hydrobiologia |
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Volume  |
700 |
Numéro |
1 |
Pages |
343-349 |
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Mots-Clés |
Endemic; Global extent; Native; Non-native; River drainage basin; fishes |
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Résumé |
There is growing interest in large-scale approaches to ecology, for both plants and animals. In particular, macroecological studies enable examination of the patterns and determinants of species richness of a variety of groups of organism throughout the world, which might have important implications for prediction and mitigation of the consequences of global change. Here, we provide richness data for freshwater fishes, which, with more than 13,000 described species, comprise a quarter of all vertebrate species. We conducted an extensive literature survey of native, non-native (exotic), and endemic freshwater fish species richness. The resulting database, called Fish-SPRICH, contains data from more than 400 bibliographic sources including published papers, books, and grey literature sources. Fish-SPRICH contains richness values at the river basin grain for 1,054 river basins covering more than 80% of the earth's continental surface. This database is currently the most comprehensive global database of native, non-native and endemic freshwater fish richness available at the river basin grain. |
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English |
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0018-8158 |
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Numéro d'Appel |
MARBEC @ isabelle.vidal-ayouba @ |
collection |
604 |
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Auteur |
Teulier, L.; Thoral, E.; Queiros, Q.; McKenzie, D.J.; Roussel, D.; Dutto, G.; Gasset, E.; Bourjea, J.; Saraux, C. |
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Titre |
Muscle bioenergetics of two emblematic Mediterranean fish species: Sardina pilchardus and Sparus aurata |
Type |
Article scientifique |
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Année |
2019 |
Publication |
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Revue Abrégée |
Comp. Biochem. Physiol. A-Mol. Integr. Physiol. |
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Volume |
235 |
Numéro |
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Pages |
174-179 |
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Mots-Clés |
aerobic capacity; Bioenergetics; gait transition; Lipids; Marine fishes; metabolic fuels; pathways; physiology; Red muscle; responses; skeletal-muscle; slow; swimming performance; temperature |
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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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ISSN |
1095-6433 |
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Notes |
WOS:000481561100018 |
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pas de |
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Numéro d'Appel |
MARBEC @ isabelle.vidal-ayouba @ |
collection |
2629 |
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Auteur |
Bouchoucha, M.; Pecheyran, C.; Gonzalez, J.L.; Lenfant, P.; Darnaude, A.M. |
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Titre |
Otolith fingerprints as natural tags to identify juvenile fish life in ports |
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Article scientifique |
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Année |
2018 |
Publication |
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Revue Abrégée |
Estuar. Coast. Shelf Sci. |
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Volume |
212 |
Numéro |
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Pages |
210-218 |
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Mots-Clés |
coastal habitats; Coastal areas; Contamination; elemental fingerprints; Fish; genus diplodus; la-icpms; nursery habitats; Nursery habitats; situ speciation measurements; sparid fishes; stable-isotopes; thin-films dgt; water chemistry; western mediterranean sea |
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Résumé |
The construction of ports has caused substantial habitat destruction in coastal areas previously used as nursery grounds by many fish species, with consequences to fish stocks. These artificial coastal areas might provide alternative nursery habitats for several species for juvenile fish abundances and growth in ports, although their contribution to adult stocks had never been estimated. The variability of otolith composition in the juveniles of two Diplodus species was investigated in three contrasting port areas and two adjacent coastal juvenile habitats of the Bay of Toulon (northwestern Mediterranean) in order to determine the possible use of otolith fingerprints as natural tags for the identification of juvenile fishes in ports. The global accuracy of discrimination between ports and coastal areas was very high (94%) irrespective of species, suggesting that otolith fingerprints can be used with confidence to retrospectively identify past residency in the ports of this bay. However, Ba was systematically the most discriminating element, since its concentrations in otoliths were generally higher outside ports than in inside them, probably due to river runoff. Moreover, otolith signatures varied greatly by species and between sampling sites. Furthermore, although Cu and Pb concentrations in water were at least 2.3-34-fold higher inside ports than outside, this was not consistently reflected in fish otoliths, confirming that spatial differences in otolith concentrations depend on the species and do not directly reflect differences in environmental contamination levels. Therefore, it seems unlikely that otolith microchemistry could provide a universal fingerprint capable of discriminating ports from other coastal areas. Nevertheless, the contribution of ports to adult fish populations can be determined well by establishing a library of otolith fingerprints for all juvenile habitats. |
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English |
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ISSN |
0272-7714 |
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Numéro d'Appel |
MARBEC @ alain.herve @ |
collection |
2427 |
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Auteur |
Blasco, F.R.; McKenzie, D.J.; Taylor, E.W.; Rantin, F.T. |
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Titre |
The role of the autonomic nervous system in control of cardiac and air-breathing responses to sustained aerobic exercise in the African sharptooth catfish Clarias gariepinus |
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Article scientifique |
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Année |
2017 |
Publication |
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Revue Abrégée |
Comp. Biochem. Physiol. A-Mol. Integr. Physiol. |
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Volume |
203 |
Numéro |
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Pages |
273-280 |
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Mots-Clés |
Adrenergic tone; bass dicentrarchus-labrax; cardiorespiratory interactions; Cholinergic tone; Fishes; Heart rate; heart-rate; hoplerythrinus-unitaeniatus; Hypoxia; oxygen-tensions; rainbow-trout; salmo-gairdneri; Swimming; synbranchus-marmoratus |
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Résumé |
Clarias gariepinus is a facultative air-breathing catfish that exhibits changes in heart rate (f(H)) associated with air breaths (AB). A transient bradycardia prior to the AB is followed by sustained tachycardia during breath-hold. This study evaluated air-breathing and cardiac responses to sustained aerobic exercise in juveniles (total length similar to 20 cm), and how exercise influenced variations in f(H) associated with AB. In particular, it investigated the role of adrenergic and cholinergic control in cardiac responses, and effects of pharmacological abolition of this control on air-breathing responses. Sustained exercise at 15, 30 and 45 cm s(-1) in a swim tunnel caused significant increases in f(AB) and f(H), from approximately 5 breaths h(-1) and 60 heartbeats min(-1) at the lowest speed, to over 60 breaths h(-1) and 100 beats min(-1) at the highest, respectively. There was a progressive decline in the degree of variation in f(H), around each AB, as f(AB) increased with exercise intensity. Total autonomic blockade abolished all variation in fH during exercise, and around each AB, but f(AB) responses were the same as in untreated animals. Cardiac responses were exclusively due to modulation of inhibitory cholinergic tone, which varied from >100% at the lowest speed to <10% at the highest. Cholinergic blockade had no effect on f(AB) compared to untreated fish. Excitatory beta-adrenergic tone was approximately 20% and did not vary with swimming speed, but its blockade increased f(AB) at all speeds, compared to untreated animals. This reveals complex effects of autonomic control on air-breathing during exercise in C. gariepinus, which deserve further investigation. (C) 2016 Elsevier Inc. All rights reserved. |
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English |
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ISSN |
1095-6433 |
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pas de |
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Numéro d'Appel |
MARBEC @ alain.herve @ |
collection |
1714 |
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| Lien permanent pour cet enregistrement |
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Auteur |
Annasawmy, P.; Ternon, J.-F.; Cotel, P.; Cherel, Y.; Romanov, E.; Roudaut, G.; Lebourges-Dhaussy, A.; Menard, F.; Marsac, F. |
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Titre |
Micronekton distributions and assemblages at two shallow seamounts of the south-western Indian Ocean: Insights from acoustics and mesopelagic trawl data |
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Article scientifique |
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Année |
2019 |
Publication |
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Revue Abrégée |
Prog. Oceanogr. |
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Volume |
178 |
Numéro |
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Pages |
102161 |
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Mots-Clés |
Acoustics; deep-scattering layer; diel migration; fish aggregations; mesoscale features; Micronekton; mozambique channel; myctophid fishes; pelagic communities; Seamount; Seamount-associated fauna; South-western Indian Ocean; species identification; target strength; vertical-distribution |
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Résumé |
Micronekton distributions and assemblages were investigated at two shallow seamounts of the south-western Indian Ocean using a combination of trawl data and a multi-frequency acoustic visualisation technique. La Pa rouse seamount (summit depth similar to 60 m) is located on the outskirts of the oligotrophic Indian South Subtropical Gyre (ISSG) province with weak mesoscale activities and low primary productivity all year round. The “MAD-Ridge” seamount (thus termed in this study; similar to 240 m) is located in the productive East African Coastal (EAFR) province with high mesoscale activities to the south of Madagascar. Higher micronekton species richness was recorded at MAD-Ridge compared to La Perouse. Resulting productivity at MAD-Ridge seamount was likely due to the action of mesoscale eddies advecting productivity and larvae from the Madagascar shelf rather than local dynamic processes such as Taylor column formation. Mean micronekton abundance/biomass, as estimated from mesopelagic trawl catches, were lower over the summit compared to the vicinity of the seamounts, due to net selectivity and catchability and depth gradient on micronekton assemblages. Mean acoustic densities in the night shallow scattering layer (SSL: 10-200 m) over the summit were not significantly different compared to the vicinity (within 14 nautical miles) of MAD-Ridge. At La Perouse and MAD-Ridge, the night and day SSL were dominated by common diel vertically migrant and non-migrant micronekton species respectively. While seamount-associated mesopelagic fishes such as Diaphus suborbitalis (La Perouse and MAD-Ridge) and Benthosema fibula= performed diel vertical migrations (DVM) along the seamounts' flanks, seamount-resident benthopelagic fishes, including Cookeolus japonicus (MAD-Ridge), were aggregated over MAD-Ridge summit. Before sunrise, mid-water migrants initiated their vertical migration from the intermediate to the deep scattering layer (DSL, La Perouse: 500-650 m; MAD-Ridge: 400-700 m) or deeper. During sunrise, the other taxa contributing to the night SSL exhibited a series of vertical migration events from the surface to the DSL or deeper until all migrants have reached the DSL before daytime. Possible mechanisms leading to the observed patterns in micronekton vertical and horizontal distributions are discussed. This study contributes to a better understanding of how seamounts influence the DVM, horizontal distribution and community composition of micronekton and seamount-associated/resident species at two poorly studied shallow topographic features in the south-western Indian Ocean. |
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English |
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Titre de collection Abrégé |
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ISSN |
0079-6611 |
ISBN |
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Notes |
WOS:000496861900013 |
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pas de |
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Numéro d'Appel |
MARBEC @ isabelle.vidal-ayouba @ |
collection |
2666 |
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| Lien permanent pour cet enregistrement |
