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| Viana, Andrea P.; Lucena-fredou, Flavia; Menard, Frederic; Fredou, Thierry; Ferreira, Valdimere; Lira, Alex S.; Le Loch, Francois. |
| The presently reported study provides length-weight relations (LWR) of 70 fish species (Actinopterygii) from the tropical coastal region of Pernambuco, Northeast Brazil: Achirus declivis, Achirus lineatus, Anchoa spinifer, Anchoa tricolor, Anchovia clupeoides, Archosargus rhomboidalis, Aspistor luniscutis, Aspistor quadriscutis, Bagre bagre, Bagre marinus, Bairdiella ronchus, Bathygobius soporator, Carangoides bartholomaei, Caranx hippos, Caranx latus, Caranx ruber, Centropomus parallelus, Centropomus pectinatus, Centropomus undecimalis, Chaetodipterus faber, Chloroscombrus chrysurus, Citharichthys spilopterus, Conodon nobilis, Ctenogobius boleosoma, Cynoscion virescens, Diapterus auratus, Diapterus rhombeus, Engraulis anchoita, Etropus crossotus,... |
| Tipo: Text |
Palavras-chave: Ichthyofauna; Estuary; Coast; Allometry; Tropical South Atlantic. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00359/47039/72975.pdf |
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| Soares, Andrey; Souza Lira, Alex; Guazzelli Gonzalez, Julio; Nolé Eduardo, Leandro; Lucena-frédou, Flavia; Le Loch, Francois; Padovani Ferreira, Beatrice; Fredou, Thierry. |
| This study provides information about the feeding habits, population aspects and spatial distribution of the spotted goatfish, Pseudupeneus maculatus, along the coast of the tropical Brazilian continental shelf. Distribution patterns are described using length frequencies and catch rates. Stable isotope ratios of carbon (δ13C) and nitrogen (δ15N), along with stomach contents, were analysed to determine the diet of the spotted goatfish. Multivariate analysis and numerical indicators of the diet, such as numerical frequency, frequency of occurrence and weight percentage, were computed to evaluate the diet composition. The mean trophic position was defined using both stable isotope ratios and stomach content analysis. The length at first maturity for the... |
| Tipo: Text |
Palavras-chave: Distribution patterns; Stomach content analysis; Brazil; Cross-shelf; Stable isotopes. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00628/74046/73453.pdf |
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| Lira, Alex; Angelini, Ronaldo; Le Loc'H, Francois; Menard, Frederic; Lacerda, Carlos; Fredou, Thierry; Fredou, Flavia Lucena. |
| We developed an Ecopath model in the Estuary of Sirinhaém River (SIR), a small-sized system surrounded by mangroves, subject to high impact, mainly by sugar cane industry and other farming industries in order to describe the food web structure and trophic interactions. In addition, we compared our findings with those of 20 available Ecopath estuarine models for tropical, subtropical and temperate regions, aiming to synthesize the knowledge on trophic dynamics and provide a comprehensive analysis of the structures and functioning of estuaries. Our model consisted of 25 compartments and its indicators were within the expected range for estuarine areas around the world. The average trophic transfer efficiency for the entire system was 11.8%, similar to the... |
| Tipo: Text |
Palavras-chave: Tropical estuary; Ecopath; Food web; Global comparison of ecological indicators. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00428/53929/55061.pdf |
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| Eduardo, Leandro Nolé; Lucena-frédou, Flávia; Mincarone, Michael Maia; Soares, Andrey; Le Loch, Francois; Fredou, Thierry; Menard, Frédéric; Bertrand, Arnaud. |
| Mesopelagic fishes are numerically the most important vertebrate group of all world’s oceans. While these species are increasingly threatened by anthropogenic activities, basic biological knowledge is still lacking. For instance, major uncertainties remain on the behaviour, ecology, and thus functional roles of mesopelagic micronektivores, particularly regarding their interactions with physicochemical features. Here, we examine the trophic ecology, habitat, and migratory behaviour of the viperfish (Chauliodus sloani)—a poorly known and abundant deep-sea species—to further understand the ecology and thus functional role of mesopelagic micronektivores. Moreover, we explore how physical drivers may affect these features and how these relationships are likely... |
| Tipo: Text |
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| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00662/77417/79079.pdf |
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