Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 31
Primeira ... 12 ... Última
Imagem não selecionada

Imprime registro no formato completo
Body reserves mediate trade-offs between life-history traits: new insights from small pelagic fish reproduction ArchiMer
Brosset, Pablo; Lloret, Josep; Munoz, Marta; Fauvel, Christian; Van Beveren, Elisabeth; Marques, Virginie; Fromentin, Jean-marc; Menard, Frederic; Saraux, Claire.
Limited resources in the environment prevent individuals from simultaneously maximizing all life-history traits, resulting in trade-offs. In particular, the cost of reproduction is well known to negatively affect energy investment in growth and maintenance. Here, we investigated these trade-offs during contrasting periods of high versus low fish size and body condition (before/after 2008) in the Gulf of Lions. Female reproductive allocation and performance in anchovy (Engraulis encrasicolus) and sardine (Sardina pilchardus) were examined based on morphometric historical data from the 1970s and from 2003 to 2015. Additionally, potential maternal effects on egg quantity and quality were examined in 2014/2015. After 2008, the gonadosomatic index increased for...
Tipo: Text Palavras-chave: Maternal effect; Northwest Mediterranean; Anchovy; Sardine.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00353/46458/46233.pdf
Imagem não selecionada

Imprime registro no formato completo
Measurement and analysis of small pelagic fish condition: A suitable method for rapid evaluation in the field ArchiMer
Brosset, Pablo; Fromentin, Jean-marc; Menard, Frederic; Pernet, Fabrice; Bourdeix, Jean-herve; Bigot, Jean-louis; Van Beveren, Elisabeth; Perez Rodia, Maria A.; Choy, Sandrine; Saraux, Claire.
As condition is a key variable in population dynamics (especially for survival, growth and reproduction), the use of well-defined and accurate fish condition indices is capital. In particular, condition indices (morphometric, bioenergetic and biochemical) have never been compared and validated for the European anchovy Engraulis encrasicolus, the European pilchard Sardina pilchardus and the European sprat Sprattus sprattus. The accuracy of two indirect methods, the morphometric relative condition index Kn and the bioenergetics index determined with the Distell Fish Fatmeter was investigated by comparing with a direct measure of relative lipid content carried out with a thin layer chromatography-flame ionization detector. Estimations from the fatmeter...
Tipo: Text Palavras-chave: Anchovy; Fatmeter; Lipids; Mediterranean Sea; Sardine; Sprat.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00226/33741/32304.pdf
Imagem não selecionada

Imprime registro no formato completo
Primary production and depth drive different trophic structure and functioning of fish assemblages in French marine ecosystems ArchiMer
Cresson, Pierre; Chouvelon, Tiphaine; Bustamante, Paco; Bănaru, Daniela; Baudrier, Jerome; Le Loch, Francois; Mauffret, Aourell; Mialet, Benoit; Spitz, Jérome; Wessel, Nathalie; Briand, Marine; Denamiel, Margaux; Doray, Mathieu; Guillou, Gaël; Jadaud, Angelique; Lazard, Coline; Noûs, Camille; Prieur, Solène; Rouquette, Manuel; Saraux, Claire; Serre, Sandrine; Timmerman, Charles-andre; Verin, Yves; Harmelin-vivien, Mireille.
Investigating the drivers of fish assemblage trophic structure is a critical question, in order to better understand ecosystem functioning, predict the effects of perturbations and implement integrated management of exploited marine ecosystems. Ecosystemic surveys enabled the determination of the trophic structure of the fish assemblages in three French marine ecosystems, namely the Eastern English Channel, the Bay of Biscay and the Gulf of Lions, through the simultaneous collection of qualitative (stable isotopes and energy content) and quantitative (biomass) data. In the Bay of Biscay and in the Gulf of Lions, pelagic primary production supported at least 80% of the fish biomass production, and explained the dominance of pelagic species, but with...
Tipo: Text Palavras-chave: Fish community; Trophodynamics; Food webs; Benthic-pelagic coupling.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00629/74120/73562.pdf
Imagem não selecionada

Imprime registro no formato completo
Influence of environmental variability and age on the body condition of small pelagic fish in the Gulf of Lions ArchiMer
Brosset, Pablo; Menard, Frederic; Fromentin, Jean-marc; Bonhommeau, Sylvain; Ulses, Caroline; Bourdeix, Jean-herve; Bigot, Jean-louis; Van Beveren, Elisabeth; Roos, David; Saraux, Claire.
Endogenous and environmental variables are fundamental in explaining variations in fish condition. Based on more than 20 yr of fish weight and length data, relative condition indices were computed for anchovy and sardine caught in the Gulf of Lions. Classification and regression trees (CART) were used to identify endogenous factors affecting fish condition, and to group years of similar condition. Both species showed a similar annual cycle with condition being minimal in February and maximal in July. CART identified 3 groups of years where the fish populations generally showed poor, average and good condition and within which condition differed between age classes but not according to sex. In particular, during the period of poor condition (mostly recent...
Tipo: Text Palavras-chave: Anchovy; Sardine; Relative condition factor; NW Mediterranean Sea; Endogenous effect; Environmental effect.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00272/38334/36575.pdf
Imagem não selecionada

Imprime registro no formato completo
The fisheries history of small pelagics in the Northern Mediterranean ArchiMer
Van Beveren, Elisabeth; Fromentin, Jean-marc; Rouyer, Tristan; Bonhommeau, Sylvain; Brosset, Pablo; Saraux, Claire.
Since 2007, the biomass of sardine and anchovy in the NW Mediterranean has remained persistently low, whereas the biomass of the commercially low-valued sprat has exploded. Also, simultaneous decreases in condition, size, and/or age of these populations were observed. Altogether, this resulted in a drop in landings of small pelagics. To understand the amplitude of these events and to provide a baseline scenario against which current changes can be compared, we compiled exceptionally long landing series (1865–2013) of sardine, anchovy, and mackerel for different subregions of the southern French coast. We characterized the fluctuations of these landings and compared these with environmental drivers (sea surface temperature, Rhône river discharge, North...
Tipo: Text Palavras-chave: Anchovy; Fish landings; Gulf of Lions; Historical time series; Mackerel; Sardine.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00319/43001/42561.pdf
Imagem não selecionada

Imprime registro no formato completo
Réponse à la saisine DPMA 13-5548 sur l’analyse des actions nécessaires pour la mise en œuvre du suivi et de l’évaluation scientifique des plans de gestion Méditerranée. ArchiMer
Le Corre, Gildas; Rouyer, Tristan; Jadaud, Angelique; Saraux, Claire; Bigot, Jean-louis; Demaneche, Sebastien.
Tipo: Text
Ano: 2013 URL: https://archimer.ifremer.fr/doc/00169/28051/79935.pdf
Imagem não selecionada

Imprime registro no formato completo
Effects of extraction method and storage of dry tissue on marine lipids and fatty acids ArchiMer
Sardenne, Fany; Bodin, Nathalie; Metral, Luisa; Crottier, Anais; Le Grand, Fabienne; Bideau, Antoine; Brisset, Blandine; Bourjea, Jerome; Saraux, Claire; Bonhommeau, Sylvain; Kerzerho, Vincent; Bernard, Serge; Rouyer, Tristan.
Various protocols are currently used to study marine lipids, but there is a growing interest in working on dry samples that are easier to transport. However, reference protocols are still lacking for dry samples. In order to make recommendations on this use, lipid classes and fatty acids (FA) obtained from six analytical protocols using two different tissue states (dry vs wet) and three extraction methods (automat vs manual potter vs leaving the solvent to work on tissue) were compared. Three dry storage modes of tissue (freezer vs gas nitrogen vs dry room) during one and three months were also compared. These comparisons were made on seven marine species with different lipid profiles, including fishes, crustaceans and mollusks. Lipid classes and FA...
Tipo: Text Palavras-chave: Degradation; Freeze-drying; Lyophilization; Lipid class; Marine animal; Protocol.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00467/57898/60189.pdf
Imagem não selecionada

Imprime registro no formato completo
La surexploitation des ressources halieutiques dans le golfe du Lion ArchiMer
Jadaud, Angelique; Saraux, Claire.
Tipo: Text
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00487/59823/62966.pdf
Imagem não selecionada

Imprime registro no formato completo
Muscle bioenergetics of two emblematic Mediterranean fish species: Sardina pilchardus and Sparus aurata ArchiMer
Teulier, Loïc; Thoral, Elisa; Queiros, Quentin; Mckenzie, David; Roussel, Damien; Dutto, Gilbert; Gasset, Eric; Bourjea, Jerome; Saraux, Claire.
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 (~10% of the body mass) compared to gilthead seabream (~5% of the body mass). We firstly studied red and white muscle fiber bioenergetics, using high-resolution respirometers, showing a 4-fold higher oxidation...
Tipo: Text Palavras-chave: Red muscle; Bioenergetics; Marine fishes; Lipids.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00502/61390/65054.pdf
Imagem não selecionada

Imprime registro no formato completo
Importance of coastal Marine Protected Areas for the conservation of pelagic seabirds: The case of Vulnerable yelkouan shearwaters in the Mediterranean Sea ArchiMer
Peron, Clara; Gremillet, David; Prudor, Aurelien; Pettex, Emeline; Saraux, Claire; Soriano-redondo, Andrea; Authier, Matthieu; Fort, Jerome.
Marine Protected Areas (MPAs) are being established across all marine regions but their validity for the conservation of highly mobile marine vertebrates has been questioned. We tested the hypothesis that French coastal MPAs primarily designed for coastal and benthic biota are also beneficial for the conservation of a pelagic seabird, the Vulnerable yelkouan shearwater (Puffinus yelkouan), an endemic species to the Mediterranean Sea. We used a vast spectrum of electronic devices (GPS, temperature-depth-recorders, satellite transmitters and geolocators) and stable isotopic analyses to study the year-round movements and the trophic status of yelkouan shearwaters from the Hyères archipelago (France). In addition we conducted large-scale ship and aircrafts...
Tipo: Text Palavras-chave: Aerial surveys; At-sea observations; Biotelemetry; Conservation biogeography; Spatial planning; Stable isotope analysis.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00163/27460/26393.pdf
Imagem não selecionada

Imprime registro no formato completo
Prey predator interactions in the face of management regulations: changes in Mediterranean small pelagics are not due to increased tuna predation ArchiMer
Van Beveren, Elisabeth; Fromentin, Jean-marc; Bonhommeau, Sylvain; Nieblas, Anne-elise; Metral, Luisa; Brisset, Blandine; Jusup, Marko; Bauer, Robert Klaus; Brosset, Pablo; Saraux, Claire.
Thunnus thynnus Sardina pilchardus Engraulis encrasicolus
Tipo: Text
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00371/48215/50340.pdf
Imagem não selecionada

Imprime registro no formato completo
Small pelagic fish dynamics: a review of mechanisms in the Gulf of Lions ArchiMer
Saraux, Claire; Van Beveren, Elisabeth; Brosset, Pablo; Queiros, Quentin; Bourdeix, Jean-herve; Dutto, Gilbert; Gasset, Eric; Jac, Cyrielle; Bonhommeau, Sylvain; Fromentin, Jean-marc.
Around 2008, an ecosystem shift occurred in the Gulf of Lions, highlighted by considerable changes in biomass and fish mean weight of its two main small pelagic fish stocks (European anchovy, Engraulis encrasicolus; European sardine, Sardina pilchardus). Surprisingly these changes did not appear to be mediated by a decrease in fish recruitment rates (which remained high) or by a high fishing pressure (exploitation rates being extremely low). Here, we review the current knowledge on the population's dynamics and its potential causes. We used an integrative ecosystem approach exploring alternative hypotheses, ranging from bottom-up to top-down control, not forgetting epizootic diseases. First, the study of multiple population characteristics highlighted a...
Tipo: Text Palavras-chave: Population dynamics; Top-down; Disease; Zooplankton; Exploited species; Bottom-up.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00427/53861/54903.pdf
Imagem não selecionada

Imprime registro no formato completo
Energetic adjustments in freely breeding-fasting king penguins: does colony density matter? ArchiMer
Viblanc, Vincent A.; Saraux, Claire; Malosse, Nelly; Groscolas, Rene.
1. For seabirds that forage at sea but breed while fasting on land, successful reproduction depends on the effective management of energy stores. Additionally, breeding often means aggregating in dense colonies where social stress may affect energy budgets. 2. Male king penguins (Aptenodytes patagonicus) fast for remarkably long periods (up to 1 center dot 5months) while courting and incubating ashore. Although their fasting capacities have been well investigated in captivity, we still know very little about the energetics of freely breeding birds. 3. We monitored heart rate (HR, a proxy to energy expenditure), body temperature and physical activity of male king penguins during their courtship and first incubation shift in a colony of some 24000 freely...
Tipo: Text Palavras-chave: Social density; Body temperature; Seabird; Fasting; Stress; Physical activity; Heart rate; Energy expenditure.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00193/30447/29090.pdf
Imagem não selecionada

Imprime registro no formato completo
Food in the Sea: Size Also Matters for Pelagic Fish ArchiMer
Queiros, Quentin; Fromentin, Jean-marc; Gasset, Eric; Dutto, Gilbert; Huiban, Camille; Metral, Luisa; Leclerc, Lina; Schull, Quentin; Mckenzie, David; Saraux, Claire.
Small pelagic fish are key components of marine ecosystems and fisheries worldwide. Despite the absence of recruitment failure and overfishing, pelagic fisheries have been in crisis for a decade in the Western Mediterranean Sea because of a marked decline in sardine size and condition. This situation most probably results from bottom-up control and changes in the plankton community toward smaller plankton. To understand such an unusual phenomenon, we developed an original and innovative experimental approach investigating the mechanisms induced by a reduction in the quantity and size of sardine prey. While experimentations offer the unique opportunity to integrate behavior and ecophysiology in understanding key demographic processes, they remain rarely...
Tipo: Text Palavras-chave: Experimentation; Small pelagics; Sardina pilchardus; Body condition; Bottom-up control.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00505/61669/65585.pdf
Imagem não selecionada

Imprime registro no formato completo
Carry-over body mass effect from winter to breeding in a resident seabird, the little penguin ArchiMer
Salton, Marcus; Saraux, Claire; Dann, Peter; Chiaradia, André.
Using body mass and breeding data of individual penguins collected continuously over 7 years (2002–2008), we examined carry-over effects of winter body mass on timing of laying and breeding success in a resident seabird, the little penguin (Eudyptula minor). The austral winter month of July consistently had the lowest rate of colony attendance, which confirmed our expectation that penguins work hard to find resources at this time between breeding seasons. Contrary to our expectation, body mass in winter (July) was equal or higher than in the period before (‘moult-recovery’) and after (‘pre-breeding’) in 5 of 7 years for males and in all 7 years for females. We provided evidence of a carry-over effect of body mass from winter to breeding; females and males...
Tipo: Text Palavras-chave: Capital-income breeding; Penguin monitoring system; Parental investment; Timing of laying; Breeding success; Seabirds.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00253/36431/34976.pdf
Imagem não selecionada

Imprime registro no formato completo
La force de l’observation pérenne, la synergie de l’intégration numérique. Suivi des populations halieutiques et de mammifères marins du golfe du Lion ArchiMer
Jadaud, Angelique; Saraux, Claire; Rouyer, Tristan.
Tipo: Text
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00487/59829/62972.pdf
Imagem não selecionada

Imprime registro no formato completo
Pourquoi les anchois et les sardines du golfe du Lion disparaissent de vos étals ? ArchiMer
Saraux, Claire.
Tipo: Text
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00486/59817/62960.pdf
Imagem não selecionada

Imprime registro no formato completo
Understanding the Population Structure of the European Anchovy (Engraulis encrasicolus) in the Black Sea, Mediterranean Sea and Northeast Atlantic Ocean by Using Otolith Shape Analysis ArchiMer
Akkus, Gizem; Jemaa, Sharif; Cemal Gucu, Ali; Marchal, Paul; Carbonara, Pierluigi; Bacha, Mahmoud; Amara, Rachid; Ernande, Bruno; Saraux, Claire; Mahe, Kelig.
European anchovy, Engraulis encrasicolus, is a small pelagic coastal marine fish largely spread from the North Sea to central Africa, including the entire Mediterranean and the Black and Azov Seas. The aim of the study is to understand the potential different population structure and their relationship between the Northeast Atlantic, Western, Eastern Mediterranean and the Black Sea anchovy population. The outlines of 2127 sagittal otoliths were collected from nineteen locations (English Channel, Atlantic, the Mediterranean and Black Sea), and added to existing information available from a previous study. Elliptical Fourier Analysis (EFA) was used to analyze the otolith shape variations among locations. Before examining the geographical differentiation by...
Tipo: Text
Ano: 2018 URL: http://archimer.ifremer.fr/doc/00436/54722/56157.pdf
Imagem não selecionada

Imprime registro no formato completo
Trophic niche overlap of sprat and commercial small pelagic teleosts in the Gulf of Lions (NW Mediterranean Sea) ArchiMer
Le Bourg, B.; Banaru, Daniela; Saraux, Claire; Nowaczyk, A.; Le Luherne, E.; Jadaud, Angelique; Bigot, Jean-louis; Richard, P..
Increasing abundance of non-commercial sprats and decreasing biomass and landings of commercial anchovies and sardines justify the need to study the feeding ecology and trophic niche overlap of these planktivorous species in the Gulf of Lions. Their diet has been investigated on the basis of stomach content and stable isotope analyses in 2011 and 2012 according to different depths and regions in the study area. The main prey were Corycaeidae copepods, Clauso/Paracalanus, Euterpina acutifrons and Microsetella, for sprats and small copepods, such as Microsetella, Oncaea and Corycaeidae, for anchovies and sardines. This is the first time that the diet of sprats is described in the Gulf of Lions. Sprats fed on a larger size spectrum of prey and seem to be more...
Tipo: Text Palavras-chave: Anchovies; Sardines; Sprats; North-western Mediterranean sea; Stomach contents; Stable isotopes.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00272/38314/38625.pdf
Imagem não selecionada

Imprime registro no formato completo
Telomere length reflects individual quality in free-living adult king penguins ArchiMer
Le Vaillant, Maryline; Viblanc, Vincent A.; Saraux, Claire; Le Bohec, Celine; Le Maho, Yvon; Kato, Akiko; Criscuolo, Francois; Ropert-coudert, Yan.
Growing evidence suggests that telomeres, non-coding DNA sequences that shorten with age and stress, are related in an undefined way to individual breeding performances and survival rates in several species. Short telomeres and elevated shortening rates are typically associated with life stress and low health. As such, telomeres could serve as an integrative proxy of individual quality, describing the overall biological state of an individual at a given age. Telomere length could be associated with the decline of an array of physiological traits in age-controlled individuals. Here, we investigated the links between individuals' relative telomere length, breeding performance and various physiological (body condition, natural antibody levels) and life...
Tipo: Text Palavras-chave: Breeding performances; Long-lived seabird; Natural antibody level; Body condition.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00302/41327/41093.pdf
Registros recuperados: 31
Primeira ... 12 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional