Consulta: creatorFacets:"Potier, Michel"
Registros recuperados: 5
Data/hora: 07/06/2024 08:49:31

Organohalogen compounds in yellowfin tuna (Thunnus albacares) from the western Indian ocean
Provedor de dados: 5
Autores: Torres, Joao Paulo Machado; Munschy, Catherine; Heas-moisan, Karine; Potier, Michel; Menard, Frederic; Bodin, Nathalie.
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00077/18866/16445.pdf

Interaction between fish and fishing vessels in the Javanese purse seine fishery
Provedor de dados: 5
Autores: Potier, Michel; Petitgas, Pierre; Petit, Didier.
The purse-seiners of the Java Sea use light and fish aggregating devices (FAD) to concentrate and catch small pelagic fish (Decapterus sp., Amblygaster sirm, Sardinella gibbosa). This sets a question about the interaction between fish and fishing vessels. Relevant estimates of fishing mortality and fishing effort require an understanding of this interaction. To gain information on this relationship, acoustic surveys were performed on the fishing grounds and the present paper analyses these data. Using acoustic surveys, the fish density was measured and the number of schools was counted per sea surface unit. The fishing vessels were located by radar. Acoustic data were stratified into two groups, one where fishing vessels were present and the other where...
Tipo: Text
Palavras-chave: Pêche; Acoustique; Structures spatiales; Pélagiques; Mer de Java; Indonésie; Fishing operation; Echo surveys; Spatial structure; Pelagic fish; Java Sea; Indonesia.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00188/29884/28343.pdf

Projet GERMON. Structure génétique et migration du thon Germon
Provedor de dados: 5
Autores: Nikolic, Natacha; Puech, Alexis; Chouvelon, Tiphaine; Munschy, Catherine; Bodin, Nathalie; Brach-papa, Christophe; Potier, Michel; West, Wendy; Knoery, Joel; Zudaire, Iker; Dhurmeea, Zahirah; Degroote, Maxime; Cedras, Maria; Evano, Hugues; Bourjea, Jerome.
The GERMON project had several aims i) to understand the populations’ structure between albacore tuna southwest of the Indian Ocean and southeast Atlantic, ii) to determine the origin of juveniles observed in South Africa iii) to improve the understanding of the biology field (Size/Size and Size/Weight; reproduction and feeding area; trophic linkages) and iv) to initiate work on chemical analyzes and adaptation of the albacore species to its environment. These aims have been held and the results allow a better understanding of the management albacore. A general summary of results is presented in Part 9.
Tipo: Text
Palavras-chave: Germon; Thunnus alalunga; Génétique; Stock; Structure; Connectivité; Chimie; Reproduction; Alimentation; Habitat; Albacore; Thunnus alalunga; Genetic; Stock; Structure; Connectivity; Chemical; Reproduction; Feeding behavior; Habitat.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00293/40461/39152.pdf

Foraging strategy of a top predator in tropical waters: great frigatebirds in the Mozambique Channel
Provedor de dados: 5
Autores: Weimerskirch, Henri; Le Corre, Matthieu; Jaquemet, Sébastien; Potier, Michel; Marsac, Francis.
Although oceanic tropical waters occupy almost 50% of the total area of pelagic oceans, knowledge of the foraging ecology of top predators in these low productivity waters is limitied. This is particularly the case for tropical seabirds that are believed to rely on scarce and unpredictable resources and have developed specific foraging strategies to exploit these resources. Frigatebirds are tropical seabirds that rely on subsurface predators such as tuna or cetaceans to feed. We studied the foraging strategy at sea of great frigatebirds breeding on Europa Island in the Mozambique Channel using satellite transmitters and altimeters. When foraging, birds moved at slow speeds (average 16.4 km h(-1)) and stayed at an average altitude of 180 m, continuously...
Tipo: Text
Palavras-chave: Europa Island; Satellite transmitters; Altimeters; Flying-fish; Ommastrephid squids; Tunas.
Ano: 2004
URL: https://archimer.ifremer.fr/doc/00209/32069/30524.pdf

Bioaccumulation of trace elements in pelagic fish from the Western Indian Ocean
Provedor de dados: 5
Autores: Kojadinovic, Jessica; Potier, Michel; Le Corre, Matthieu; Cosson, Richard P.; Bustamante, Paco.
Trace elements were analyzed in fish of commercial interest to determine their importance in marine systems of the Western Indian Ocean and their bioaccumulation patterns. The results are equivalent or lower than levels reported in ichthyofauna worldwide. Certain values of muscular Cd, Hg, Pb and Zn were, however, above thresholds for human consumption. Levels varied among tissues, species and fish length, but were seldom influenced by the nutritional condition of the fish, its gender and its reproductive status. Correlations between hepatic Hg and Se levels in Swordfish (r(2) = 0.747) and Yellowfin Tunas (r(2) = 0.226), and among metallothionein linking metals imply the existence of detoxification processes in these species. Level differences between fish...
Tipo: Text
Palavras-chave: Guidelines; Detoxification; Contamination; Fish; Metals.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-2490.pdf