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| Registros recuperados: 501 | |
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| Leleu, Kevin; Remy-zephir, Brice; Grace, Roger; Costello, Mark J.. |
| Time-series studies have reported trophic cascades in land, freshwater and marine environments in many geographic areas. However, the spatial extent of habitats, a key metric of ecosystem structure, has not been mapped in these studies. Marine reserves can provide experimental, before-after and inside-outside (control-impacted), situations for assessing the impact of fishing on ecosystems. We mapped seabed habitats and their associated communities (biotopes) in New Zealand's oldest marine reserve for comparison with pre-reserve maps created about 30 years previously. Areas grazed bare by sea urchins were entirely replaced in the centre of the reserve by kelp, or alga turf, an intermediate biotope between heavily grazed encrusting algae and lightly grazed... |
| Tipo: Text |
Palavras-chave: Kelp forest; Ecosystem change; Predator release; Subtidal mapping; Urchin Barren; New Zealand; Lobster; Fish; Time-series. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00107/21842/20067.pdf |
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| Gatesoupe, Joel. |
| Many recent papers have deepened the state of knowledge about lactic acid bacteria (LAB) in fish gut. In spite of high variability in fish microbiota, LAB are sometimes abundant in the intestine, notably in freshwater fish. Several strains of Streptococcus are pathogenic to fish. S. iniae and Lactococcus garvieae are major fish pathogens, against which commercial vaccines are available. Fortunately, most LAB are harmless, and some strains have been reported for beneficent effects on fish health. A major step forward of the recent years was those converging evidences that LAB can stimulate the immune system in fish. An open question is whether viability can affect immunostimulation. The issue is crucial to commercialise live probiotics rather than... |
| Tipo: Text |
Palavras-chave: Probiotic; Pathogen; Lactic acid bacteria; Gastrointestinal microbiota; Fish. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2007/publication-2589.pdf |
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| Robin, Jean; Regost, Christelle; Arzel, Jacqueline; Kaushik, Sadasivam. |
| The fatty acid (FA) content of fish is generally said to reflect fatty acid composition of the diet. In fact, incorporation of FA into tissues is modulated by various metabolic factors, and final composition will depend upon the initial FA content, cumulative intake of dietary fatty acids, growth rate and duration. Analysis of time course of changes in FA composition should be easier with animals having different initial FA profiles, which are subsequently fed a diet with the same FA composition. Data from two studies, one with brown trout and another with turbot were used. Fish were first fed with diets containing one of three different oils (soybean oil (SO), linseed oil (LO) and fish oil (FO)), and subsequently fed the same fish oil-based diet... |
| Tipo: Text |
Palavras-chave: Dietary change; Model; Fish; Fatty acids. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/2003/publication-498.pdf |
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| Piferrer, Francesc; Beaumont, Andy; Falguiere, Jean-claude; Flajshans, Martin; Haffray, Pierrick; Colombo, Lorenzo. |
| Polyploids can be defined as organisms with one or more additional chromosome sets with respect to the number most frequently found in nature for a given species. Triploids, organisms with three sets of homologous chromosomes, are found spontaneously in both wild and cultured populations and can be easily induced in many commercially relevant species of fish and shellfish. The major consequence of triploidy is gonadal sterility, which is of advantage in the aquaculture of molluscs since it can result in superior growth. In fish, the induction of triploidy is mainly used to avoid problems associated with sexual maturation such as lower growth rates, increased incidence of diseases and deterioration of the organoleptic properties. Triploidy can also be used... |
| Tipo: Text |
Palavras-chave: GMO; Transgenic containment; Genetic containment; Reproductive containment; Hybridisation; Sterility; Fish; Shellfish; Fish farming; Aquaculture; Tetraploidy; Triploidy; Polyploidy. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-6648.pdf |
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| Durieux, Eric; Farver, Thomas B.; Fitzgerald, Patrick S.; Eder, Kai J.; Ostrach, David J.. |
| Acetylcholinesterase (AChE) activity is one of the most common biomarkers of neurotoxicity used in aquatic organisms. However, compared to its extensive use as biomarker, the effects of natural factors onAChE activity remain unclear especially in estuarine fishes. The aim of this study was to evaluate the effects of natural factors on AChE activity of striped bass (Morone saxatilis) juveniles. Brain AChE activity was measured in YOY (Young-Of-Year) individuals collected monthly from August 2007 to January 2008 at 12 different sites in the San Francisco Estuary system. The spatio-temporal variability of AChE was analyzed relative to water temperature and salinity as well as fish size. AChE activity was highly positively correlated with water temperature and... |
| Tipo: Text |
Palavras-chave: Fish; Biomarker; Acetylcholinesterase; Brain; Temperature; Salinity; Size. |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00008/11939/8642.pdf |
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| Dupuy, Celie; Galland, Claire; Devaux, Alain; Bony, Sylvie; Loizeau, Veronique; Danion, Morgane; Pichereau, Vianney; Fournier, Michel; Laroche, Jean. |
| A multibiomarker approach was developed to evaluate the juvenile European flounder responses to a complex mixture of 9 polycyclic aromatic hydrocarbons (PAHs) and 12 polychlorinated biphenyls (PCBs). Exposure was performed through contaminated food pellets displaying: (1) PAH and PCB levels similar to those detected in the heavily polluted Seine estuary, respectively in sediments and in flatfish and (2) ten times these concentrations. Several biomarkers of the immune system (e.g., lysozyme concentration and gene expression of complement component C3 and TNF-receptor), DNA damage (e.g., Comet assay), energetic metabolism (e.g., activity of cytochrome C oxidase), detoxification process (e.g., cytochrome P450 1A1 expression level: CYP1A1; betaine homocysteine... |
| Tipo: Text |
Palavras-chave: Mixture of contaminants; Fish; Biomarker; Immunotoxicity; Detoxification process; DNA damage; PAHs; PCBs. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00188/29914/28374.pdf |
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| Leroi, Francoise. |
| Lactic acid bacteria (LAB) in fish flesh has long been disregarded because the high post-mortem pH, the low percentage of sugars, the high content of low molecular weight nitrogenous molecules and the low temperature of temperate waters favor the rapid growth of pH-sensitive psychrotolerant marine Gram-negative bacteria like Pseudomonas, Shewanella and Photobacterium. In seafood packed in both vacuum (VP) and modified atmosphere (MAP) packaging commonly CO2 enriched, the growth of the Gram-negative aerobic bacteria group (predominantly pseudomonads) is effectively inhibited and the number reached by LAB during storage is higher than that achieved in air but always several log units lower than the trimethylamine oxide (TMA-O) reducing and CO2-resistant... |
| Tipo: Text |
Palavras-chave: Lactic acid bacteria; Fish; Spoilage; Biopreservation; Probiotic; Fermentation. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00006/11750/8447.pdf |
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| Lett, Christophe; Barrier, Nicolas; Ourmières, Yann; Petit, Cécile; Labonne, Maylis; Bourjea, Jerome; Darnaude, Audrey M.. |
| To investigate dispersal and connectivity between spawning and lagoon nursery habitats of the gilthead seabream, Sparus aurata, in the Gulf of Lions (northwestern Mediterranean Sea), we modeled the potential transport of the species’ larvae between its supposed main spawning site in the region (the Planier Island) and two of its main local nursery areas (the coastal lagoons of Thau and Salses-Leucate). Passive larval drift simulations using a dispersal biophysical model showed a large variability in the possible trajectories from spawning to nursery areas and in the predicted ages for larvae arrival on the two nursery sites. The most common ages at arrival obtained in the simulations (20–60 days) are broadly consistent with previous modeling studies but... |
| Tipo: Text |
Palavras-chave: Sparus aurata; Gulf of Lions; Fish; Larvae; Models-hydrodynamic; Biophysical model; Connectivity; Otolith. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00513/62470/66903.pdf |
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| Bouchoucha, Marc; Pecheyran, C.; Gonzalez, Jean-louis; Lenfant, P.; Darnaude, A. M.. |
| 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... |
| Tipo: Text |
Palavras-chave: Coastal areas; Nursery habitats; Fish; LA-ICPMS; Contamination. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00449/56051/57571.pdf |
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| Ferrari, Sebastien; Rey, Sonia; Høglund, Erik; Øverli, Øyvind; Chatain, Beatrice; Mackenzie, Simon; Bégout, Marie-laure. |
| Individual stress coping style (reactive, intermediate and proactive) was determined in 3 groups of 120 pit tagged European seabass using the hypoxia avoidance test. The same three groups (no change in social composition) were then reared according to the standards recommended for this species. Then, 127 days later, individuals initially characterized as reactive, intermediate or proactive were submitted to an acute confinement stress for 30 min. Blood samples were taken to measure plasma cortisol levels 30 min (Stress30) or 150 min (Stress150) after the end of the confinement stress. Individuals were then sacrificed to sample the telencephalon in order to measure the main monoamines and their catabolites (at Stress30 only). Individuals from Stress150 were... |
| Tipo: Text |
Palavras-chave: Fish; Behavior; Physiology; Personality; Brain; Transcriptomic. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00601/71330/69760.pdf |
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| Bouchoucha, Marc; Chekri, R.; Leufroy, A.; Jitaru, P.; Millour, S.; Marchond, N.; Chafey, C.; Testu, C.; Zinck, J.; Cresson, Pierre; Mirallès, F.; Mahe, A.; Arnich, N.; Sanaa, M.; Bemrah, N.; Guérin, T. |
| From 1966 to 2015, the Gardanne alumina refinery discharged some 20 million tons of bauxite residue (called red mud) into the Cassidaigne Canyon (northwest French Mediterranean) with impacts on local ecosystem functioning. Although these red muds contained high levels of trace elements (TE), in particular titanium (Ti), vanadium (V), aluminum (Al) and arsenic (As), surprisingly, their impacts on fish contamination levels and the risk related to fish consumption have been little studied until now. Here, 11 trace elements (Al, As, Cd, Cr, Co, Cr, Mn, Ni, Pb, Ti and V) were analyzed in muscle and, when possible, liver, from 1308 fish of 26 species from an impacted zone in the vicinity of the Cassidaigne Canyon and a reference zone, unaffected by red mud... |
| Tipo: Text |
Palavras-chave: Trace element; Bioaccumulation; Arsenic speciation; ICP-MS; Fish; Industrial discharge. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00505/61618/65529.pdf |
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| Hastein, T; Hill, Bj; Berthe, Franck; Lightner, Dv. |
| Effective methods of traceability are urgently required for use in research as weil as in different types of aquaculture operations and to control trade in aquatic animais and praducts. In regard to the marking of fish, many different tagging methods have been described and the method to be used depends on the purpose and need for tagging. In contrast, for molluscs and crustaceans, only a few methods of marking such animais have been described, due to the practical difficulties. The authors first describe the different methods for tracing fish and fishery products, by means of external tags, such as Floy tags, Carlin tags and passive integrated transponder tags; chemical marking using inorganic substances su ch as silver nitrate or potassium nitrate,... |
| Tipo: Text |
Palavras-chave: Aquatic animals; Crustacea; Fish; Genetic markers; Molluscs; Tags; Traceability. |
| Ano: 2001 |
URL: https://archimer.ifremer.fr/doc/2001/publication-2701.pdf |
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| Geffroy, Benjamin; Sadoul, Bastien; Bouchareb, Amine; Prigent, Sylvain; Bourdineaud, Jean-paul; Gonzalez-rey, Maria; Morais, Rosana N.; Mela, Maritana; Carvalho, Lucelia Nobre; Bessa, Eduardo. |
| Nature-based tourism is gaining extensive popularity, increasing the intensity and frequency of human-wildlife contacts. As a consequence, behavioral and physiological alterations were observed in most exposed animals. However, while the majority of these studies investigated the effects of punctual exposure to tourists, the consequences of constant exposition to humans in the wild remains overlooked. This is an important gap considering the exponential interest for recreational outdoor activities. To infer long-term effects of intensive tourism, we capitalized on Odontostilbe pequira, a short-lived sedentary Tetra fish who spends its life close to humans, on which it feeds on dead skin. Hence, those fish are constantly exposed to tourists throughout their... |
| Tipo: Text |
Palavras-chave: Coping style; Ecotourism; Conservation; Behavior; Gene expression; Cortisol; Neurogenesis; Fish. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00423/53470/54366.pdf |
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| Roman, William; Pelletier, Dominique. |
| • In order to assess the sustainability of fish resources in the Natural Marine Park of Mayotte (Western Indian Ocean), indicators and monitoring protocols must be determined. • This study relied on the underwater video technique STAVIRO for assessing fish communities and resources. A pilot survey was conducted in Nov. 2014 in the south-east quarter of the Mayotte lagoon, an area encompassing the marine reserves of Longogori, M’Bouzi and the Saziley Marine Park. Out of 115 stations collected, 104 were analysed for habitat and fish, based on a list of 527 species with fishing, ecological, or emblematic interest (cf. AMBIO/A/1). • 43 indicators were computed, analysed, and for some mapped. The PAMPA computing tool was used in this purpose. • 130 fish species... |
| Tipo: Text |
Palavras-chave: Ichtyofaune; Pêche; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Biodiversité; Ecosystème corallien; AMP; Parc Naturel Marin de Mayotte; Océan Indien; Indicateur; Tableau de bord; PAMPA; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Biodiversity; Coral reefs; MPA; Natural Marine Park of Mayotte; Western Indian Ocean; Indicator; Dashboard; PAMPA. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00373/48421/48642.pdf |
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| Brehmer, Patrice; Laugier, Thierry; Kantoussan, J.; Galgani, Francois; Mouillot, D.. |
| Ensuring the sustainability of fish resources necessitates understanding their interaction with coastal habitats, which is becoming ever more challenging in the context of ever increasing anthropogenic pressures. The ability of coastal lagoons, exposed to major sources of disturbance, to provide resources and suitable habitats for growth and survival of juvenile fish is especially important. We analysed three lagoons with different ecological statuses and habitat quality on the basis of their eutrophication and ecotoxicity (Trix test) levels. Fish abundances were sampled using fishing and horizontal beaming acoustic surveys with the same protocols in the same year. The relative abundance of Anguilla anguilla, Dicentrarchus labrax or the Mugilidae group was... |
| Tipo: Text |
Palavras-chave: Fish; Shallow water; Ecotoxicity; Lagoon; Habitat quality; Amphidromous. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00148/25963/24083.pdf |
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| Boudry, Pierre; Lapegue, Sylvie; Guyomard, R.. |
| The Working Group on the Application of Genetics in Fisheries and Mariculture (WGAGFM) met in La Rochelle, France from 10-12 March, 2003. Seven persons representing six countries were present. Three terms of reference (ToR) were addressed, while one was deferred until the appropriate information was available for review. WGAGFM first considered ToR a) Review and report on the practical use of genome mapping in aquacultured organisms. Genome maps are used extensively in the production of selected strains of agriculture plants and livestock. Studies on the genome of aquatic animais have been summarised in the WG report. Genome mapping projects in aquaculture exist for most major species and linkage maps are now becoming available. WGAGFM produced four... |
| Tipo: Text |
Palavras-chave: Conservation of genetic diversity; Triploids; Recommandation; Aquaculture; Fish; Genome mapping; Genetic. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/2003/acte-3301.pdf |
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| Dauchy Silbande, Adele; Adenet, Sandra; Smith-ravin, Juliette; Joffraud, Jean-jacques; Rochefort, Katia; Leroi, Francoise. |
| Metagenomic, microbial, chemical and sensory analyses of Thunnus albacares from Martinique and stored in ice (AIR – 0 °C), vacuum (VP – 4/8 °C) and modified atmosphere packaging (MAP – 4/8 °C) (70% CO2 – 30% O2) were carried out. The organoleptic rejection of AIR tuna was observed at day 13 when total bacterial counts equaled 106–107 CFU g−1. No extension of shelf-life was provided by VP and MAP. According to 16S rRNA gene sequence analyzed by Illumina MiSeq and PCR-TTGE, Rhodanobacter terrae was the main species of the freshly caught tuna. At the sensory rejection time, Brochothrix thermosphacta and Pseudomonas dominated the AIR products while B. thermosphacta alone or a mix of B. thermosphacta, Enterobacteriaceae and lactic acid bacteria (LAB) dominated... |
| Tipo: Text |
Palavras-chave: Seafood; Fish; Microbiology; Sensory; NGS; 16S rRNA gene. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00344/45504/45056.pdf |
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| Registros recuperados: 501 | |
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