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| Registros recuperados: 74 | |
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| Noble, Mae; Fenner School of Environment and Society, The Australian National University; mae.noble@anu.edu.au; Duncan, Phil; Gamilaroi Traditional Owner, NSW Aboriginal Land Council; phil.duncan@alc.org.au; Perry, Darren; Murray Lower Darling Rivers Indigenous Nations; ngintait@gmail.com; Prosper, Kerry; Paq'tnekek Mi'kmaq First Nations; kerryp@paqtnkek.ca; Rose, Denis; Gunditj Mirring Traditional Owners Aboriginal Corporation; Denis@gunditjmirring.com; Schnierer, Stephan; School of Environment, Science and Engineering, Southern Cross University; stephan.schnierer@scu.edu.au; Tipa, Gail; Tipa and Associates Ltd.; gttipa@vodafone.co.nz; Williams, Erica; National Institute of Water and Atmospheric Research; Erica.Williams@niwa.co.nz; Woods, Rene; National Cultural Flows Program; Murray Lower Darling River Indigenous Nations; woodsre83@gmail.com; Pittock, Jamie; Fenner School of Environment and Society, The Australian National University; jamie.pittock@anu.edu.au. |
| Indigenous peoples of North America, Australia, and New Zealand have a long tradition of harvesting freshwater animals. Over generations of reliance and subsistence harvesting, Indigenous peoples have acquired a profound understanding of these freshwater animals and ecosystems that have become embedded within their cultural identity. We have identified trans-Pacific parallels in the cultural significance of several freshwater animal groups, such as eels, other finfish, bivalves, and crayfish, to Indigenous peoples and their understanding and respect for the freshwater ecosystems on which their community survival depends. In recognizing such cultural connections, we found that non-Indigenous peoples can appreciate the deep significance of freshwater animals... |
| Tipo: Peer-Reviewed Synthesis |
Palavras-chave: Adaptive freshwater management; Aquatic resources; Bivalve; Comanagement; Crayfish; Cultural keystone species; Eel; Indigenous ecological knowledge; Indigenous water rights; Lamprey; Salmon; Social-ecological resilience. |
| Ano: 2016 |
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| Lopes,Michelle; Vieira,João. |
| This work describes the spatial-temporal variation of the relative abundance and size of Limnoperna fortunei (Dunker, 1857) collected in São Gonçalo Channel through bottom trawl with a 0.5 cm mesh, at depths between 3 and 6 m. The estimative of mean relative abundance (CPUE) ranged from 2,425.3 individuals per drag (ind./drag) in the spring to 21,715.0 ind./drag in the fall, with an average of 9,515.3 ind./drag throughout the year. The estimated mean density of L. fortunei for the deep region of São Gonçalo Channel ranged from 1.2 to 10.3 ind./m², and it was recorded a maximum density of 84.9 ind./m² in the fall of 2008. The method of sampling using bottom trawl enabled the capture of L. fortunei under the soft muddy bottom of the channel, in different... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Freshwater invasion; Frequency of sizes; Golden mussel; Bivalve. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212012000400002 |
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| Fuhrmann, Marine; Petton, Bruno; Quillien, Virgile; Faury, Nicole; Morga, Benjamin; Pernet, Fabrice. |
| Mortality of young Pacific oysters Crassostrea gigas associated with the ostreid herpesvirus 1 (OsHV-1) is occurring worldwide. Here, we examined for the first time the effect of salinity on OsHV-1 transmission and disease-related mortality of C. gigas, as well as salinity-related effects on the pathogen itself. To obtain donors for OsHV-1 transmission, we transferred laboratory-raised oysters to an estuary during a disease outbreak and then back to the laboratory. Oysters that tested OsHV-1 positive were placed in seawater tanks (35‰, 21°C). Water from these tanks was used to infect naïve oysters in 2 experimental setups: (1) oysters acclimated or non-acclimated to a salinity of 10, 15, 25 and 35‰ and (2) oysters acclimated to a salinity of 25‰; the... |
| Tipo: Text |
Palavras-chave: Bivalve; Herpesviridae; Infection; Disease transmission; Risk analysis. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00350/46100/45781.pdf |
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| Gangnery, Aline; Normand, Julien; Duval, Cyrielle; Cugier, Philippe; Grangeré, Karine; Petton, Bruno; Petton, Sebastien; Orvain, Francis; Pernet, Fabrice. |
| Oyster diseases have major consequences on fisheries and aquaculture. In France, young Pacific oysters Crassostrea gigas are severely hit by the ostreid herpesvirus, whereas adults suffer mortalities presumably caused by pathogenic bacteria. Here we investigated the origin and spread of mortalities that affect both young and adult oysters, and we identified and compared their risk factors. Mortality was monitored in 2 age classes of oysters deployed in early spring at 39 sites spread over a 37 km2 surface area inside and outside of shellfish farms. Environmental data obtained from numerical modelling were used to investigate risk factors. Mortality of young oysters associated with ostreid herpesvirus occurred in the oyster farming area. Hydrodynamic... |
| Tipo: Text |
Palavras-chave: Aquaculture; Bivalve; Disease; Epidemiology and health; Ecological modelling; Hydrodynamic connectivity. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00588/69983/67896.pdf |
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| Kermorvant, Claire; Caill-milly, Nathalie; D'Amico, Frank; Bru, Noelle; Sanchez, Florence; Lissardy, Muriel; Brown, Jennifer. |
| Bivalves are important components of benthic marine and freshwater ecosystems throughout the world. One of the most exploited bivalves used for human consumption is manila clam (Venerupis philippinarum). In Arcachon Bay (SW France), commercial fishers and scientists have developed a monitoring survey to estimate clam stocks to assist in implementing a sustainable management strategy. The survey design that is currently used is based on standard stratified random sampling (StRS). The survey has been undertaken every 2 years since 2006. Each survey costs approximately (sic) 50 000, with funding provided by similar to 20% of the commercial fishers. The survey is quite expensive, given that this resource is managed mostly at a regional level. In 2016 for... |
| Tipo: Text |
Palavras-chave: Venerupis philippinarum; Bivalve; Simulation; Survey; Arcachon Bay; GRTS. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00410/52102/52808.pdf |
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| Arzul, Isabelle; Corbeil, Serge; Morga, Benjamin; Renault, Tristan. |
| Although a wide range of viruses have been reported in marine molluscs, most of these reports rely on ultrastructural examination and few of these viruses have been fully characterized. The lack of marine mollusc cell lines restricts virus isolation capacities and subsequent characterization works. Our current knowledge is mostly restricted to viruses affecting farmed species such as oysters Crassostrea gigas, abalone Haliotis diversicolor supertexta or the scallop Chlamys farreri. Molecular approaches which are needed to identify virus affiliation have been carried out for a small number of viruses, most of them belonging to the Herpesviridae and birnaviridae families. These last years, the use of New Generation Sequencing approach has allowed increasing... |
| Tipo: Text |
Palavras-chave: Molluscs; Viruses; Diseases; Herpesviridae; Bivalve; Abalone. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00371/48206/48319.pdf |
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| We are pleased to welcome you to at the first Symposium on Metabolic organization in Brest, 19-22 April, 2009. This conference is being organized jointly by Ifremer (French Institute for the Research and Exploitation of the Sea), the Department of Theoretical Biology at Vrije Universiteit Amsterdam, the Universities of Brest (UBO), Marseille (LMGEM-UMR CNRS 6117), Caen (UMRPE2M, LBBM) and Lisbon (Instituto Superior Técnico), the IRD (French Research Institute for Development), the INRA (French National Institute for Agricultural Research), the NIOZ (RoyalNetherlands Institute for Sea Research), the IMARES Wageningen (Institute for Marine Resources and Ecosystem Studies), as all these research teams are involved in research on DEB theory. You are 81 persons... |
| Tipo: Text |
Palavras-chave: Ecology; Bivalve; Chemistry; Ecotoxicology; Physiology; Dynamic energy budget; Biology. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/acte-6790.pdf |
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| Le Moullac, Gilles. |
| Summer mortality of the oyster result from the interaction of many factors. A respiratory assumption proposes a link between the supposed causes of the energy state, the cultivation methods and the medium. This work is focused towards the search for specific metabolic markers of environmental stresses. The cDNA of genes coding for PK and PEPCK were cloned and sequenced in order to detect their regulation level. The sediment nearness affects the state of energy reserves, the metabolic pathways of energy production implying a regulation of the PK. Face to the dissolved oxygen decline, oysters were oxyregulator but with a low regulation ability. In hypoxia, glycolysis was slowed down. PK activity was inhibited resulting from an increase in alanine sensitivity... |
| Tipo: Text |
Palavras-chave: Régulation; Enzyme; Expression génique; Anoxie; Bivalve. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/these-4315.pdf |
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| Renault, Tristan. |
| Bivalve molluscs are filter feeders and as a consequence they may bioaccumulate in their tissues viruses that infect humans and higher vertebrates. However, there have also been described mortalities of bivalve molluscs associated with viruses belonging to different families. Mass mortalities of adult Portuguese oysters, Crassostrea angulata, among French livestocks (between 1967 et 1973) were associated with irido-like virus infections. Herpesviruses were reported in the eastem oyster, Pacific oyster and European flat oyster and lately in scallops and clams. Disseminated neoplasia, a proliferative cell disorder of the circulatory system of bivalves, although of uncertain aetiology, has been suggested to be caused by retroviral infections. Other viruses... |
| Tipo: Text |
Palavras-chave: Infection; Virus; Mollusc; Bivalve; Infection; Virus; Mollusque; Bivalve. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-2925.pdf |
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| Caill-milly, Nathalie; Bru, Noelle; Barranger, Melanie; Gallon, Laurent; D'Amico, Franck. |
| For species' dynamics highly influenced by environmental conditions, sustainable management for conservation and/or exploitation purposes requires the ability to segregate natural processes from anthropogenic impacts. In this context, identification of phenotypic variations in morphological patterns, and clarification of the mechanisms involved, constitute useful tools to identify adequate management measures from Europe-wide to local conditions. Although such approaches are already used effectively in the management of fish stocks, they are more recent for bivalve stocks, which are also good candidates for such management tools. The current study examines morphological patterns in the Manila clam (Venerupis philippinarum) through morphometric studies of 4... |
| Tipo: Text |
Palavras-chave: Shell shape; Linear morphometric methods; Contour detection; Environmental effect; Linear multilevel model; Bivalve; Atlantic Ocean; Venerupis philippinarum. |
| Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00225/33605/32004.pdf |
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| Palmer, Stephanie C. J.; Gernez, Pierre M.; Thomas, Yoann; Simis, Stefan; Miller, Peter I.; Glize, Philippe; Barillé, Laurent. |
| Aquaculture increasingly contributes to global seafood production, requiring new farm sites for continued growth. In France, oyster cultivation has conventionally taken place in the intertidal zone, where there is little or no further room for expansion. Despite interest in moving production further offshore, more information is needed regarding the biological potential for offshore oyster growth, including its spatial and temporal variability. This study shows the use of remotely-sensed chlorophyll-a and total suspended matter concentrations retrieved from the Medium Resolution Imaging Spectrometer (MERIS), and sea surface temperature from the Advanced Very High Resolution Radiometer (AVHRR), all validated using in situ matchup measurements, as input to... |
| Tipo: Text |
Palavras-chave: Satellite image; Time series; Bivalve; Dynamic energy budget; Growth modeling; MERIS; AVHRR; Marine spatial planning. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00605/71722/70185.pdf |
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| Luna-acosta, Andrea; Renault, Tristan; Thomas-guyon, Helene; Faury, Nicole; Saulnier, Denis; Budzinski, Helene; Le Menach, K.; Pardon, P.; Fruitier-arnaudin, I.; Bustamante, Paco. |
| In the context of massive summer mortality events of the Pacific oyster Crassostrea gigas, the aim of this study was to investigate the early effects on genes, enzymes and haemocyte parameters implicated in immune defence mechanisms in C. gigas oysters exposed to a potentially hostile environment, i.e. to an herbicide alone or within a mixture. Following 2 h of exposure to the herbicide diuron at 1 mu g L-1 the repression of different genes implicated in immune defence mechanisms in the haemocytes and the inhibition of enzyme activities, such as laccase-type phenoloxidase (PO) in the plasma, were observed. The inhibition of superoxide dismutase (SOD) activity in the plasma was also observed after 6 and 24 h of exposure. In the mixture with the herbicides... |
| Tipo: Text |
Palavras-chave: Bivalve; Pollution; Gene expression; Laccase; Superoxide dismutase; Phagocytosis. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00083/19435/17475.pdf |
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| Arzul, Isabelle. |
| Au cours de l'été 1991, d'importantes mortalités de larves d'huître creuse, Crassostrea gigas, ont été observées dans des écloseries, simultanément en France (Comps et Cochennec, 1993) et en Nouvelle-Zélande (Hine & al., 1992). Les examens histologiques ainsi que des examens réalisés en microscopie électronique à transmission d'échantillons de larves présentant des mortalités ont permis de détecter la présence de particules virales associées à des lésions cellulaires. D'après la morphologie, la taille, les localisations intranucléaires et cytoplasmiques du virus, il est possible d'envisager son appartenance à la famille des Herpesviridae. De nouvelles mortalités sporadiques ont été observées au cours des étés suivants sur des lots de larves élevées... |
| Tipo: Text |
Palavras-chave: Virus; Herpesviridae; Bivalve; Crassostrea gigas; Etiologie; Epidémiologie; Diagnostic; Reproduction infection. |
| Ano: 1998 |
URL: http://archimer.ifremer.fr/doc/00106/21711/19289.pdf |
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| Dupuy, Christine; Vaquer, André; Lam Hoai, Thong; Rougier, Claude; Mazouni, Nabila; Lautier, Jacques; Collos, Yves; Le Gall, Solange. |
| The Mediterranean Thau Lagoon is an important oyster farming area in Europe. Oyster growth rates are among the highest in France, although chlorophyll a concentration is low. Previous studies have demonstrated that picophytoplankton, nano-microphytoplankton, dinoflagellates and loricate ciliates such as tintinnids are abundant. However, heterotrophic flagellates and aloricate ciliates have not been investigated. The aim of this study was to assess picophytoplankton, protist and zooplankton abundances in the Lagoon and to investigate the particular structure of the microbial food web, which may explain such paradoxical oyster growth. In oligotrophic waters in the Thau Lagoon, the picoeukaryote Ostreococcus tauri is the dominant autotrophic picoplankter,... |
| Tipo: Text |
Palavras-chave: Trophic link; Picophytoplankton; Heterotrophic protist; Microbial food web; Thau Lagoon; Food source; Oyster; Bivalve. |
| Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/2000/publication-812.pdf |
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| Registros recuperados: 74 | |
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