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Статті в журналах з теми "Bivalves – Mortalité"
Haag, Wendell R., David J. Berg, David W. Garton, and Jerry L. Farris. "Reduced Survival and Fitness in Native Bivalves in Response to Fouling by the Introduced Zebra Mussel (Dreissena polymorpha) in Western Lake Erie." Canadian Journal of Fisheries and Aquatic Sciences 50, no. 1 (January 1, 1993): 13–19. http://dx.doi.org/10.1139/f93-002.
Повний текст джерелаScarpa, Fabio, Daria Sanna, Ilenia Azzena, Davide Mugetti, Francesco Cerruti, Sepideh Hosseini, Piero Cossu, et al. "Multiple Non-Species-Specific Pathogens Possibly Triggered the Mass Mortality in Pinna nobilis." Life 10, no. 10 (October 13, 2020): 238. http://dx.doi.org/10.3390/life10100238.
Повний текст джерелаLattos, Athanasios, Dimitrios K. Papadopoulos, Konstantinos Feidantsis, Ioannis A. Giantsis, Ioannis Georgoulis, Dimitrios Karagiannis, and Basile Michaelidis. "Antioxidant Defense of Mytilus galloprovincialis Mussels Induced by Marine Heatwaves in Correlation with Marteilia Pathogen Presence." Fishes 8, no. 8 (August 8, 2023): 408. http://dx.doi.org/10.3390/fishes8080408.
Повний текст джерелаMatthews, T. G., and A. J. Constable. "Effect of flooding on estuarine bivalve populations near the mouth of the Hopkins River, Victoria, Australia." Journal of the Marine Biological Association of the United Kingdom 84, no. 3 (May 24, 2004): 633–39. http://dx.doi.org/10.1017/s0025315404009671h.
Повний текст джерелаKhanam, Safia, Alia Bano Munshi, Hina Ahsan, and Razia Begum. "Impact of Organic Micropollutants Causing Mass Mortality of the Clams (Mactra aequisulcata) Due to Charactersitic Distribution at Karachi Coast, Pakistan." Biological Sciences - PJSIR 63, no. 3 (November 13, 2020): 148–56. http://dx.doi.org/10.52763/pjsir.biol.sci.63.3.2020.148.156.
Повний текст джерелаKidwell, Susan M., and Thomas A. Rothfus. "The living, the dead, and the expected dead: variation in life span yields little bias of proportional abundances in bivalve death assemblages." Paleobiology 36, no. 4 (2010): 615–40. http://dx.doi.org/10.1666/09004.1.
Повний текст джерелаCoughlan, Neil E., Eoghan M. Cunningham, Stephen Potts, Diarmuid McSweeney, Emma Healey, Jaimie T. A. Dick, Gina Y. W. Vong, et al. "Steam and Flame Applications as Novel Methods of Population Control for Invasive Asian Clam (Corbicula fluminea) and Zebra Mussel (Dreissena polymorpha)." Environmental Management 66, no. 4 (July 5, 2020): 654–63. http://dx.doi.org/10.1007/s00267-020-01325-1.
Повний текст джерелаAnsell, A. D., L. Robb, and H. T. Powell. "Algal-induced dislodgement as a cause of bivalve mortality on some Scottish beaches." Journal of the Marine Biological Association of the United Kingdom 68, no. 2 (May 1988): 219–33. http://dx.doi.org/10.1017/s0025315400052139.
Повний текст джерелаDairain, A., MY Engelsma, J. Drent, R. Dekker, and DW Thieltges. "High prevalences of disseminated neoplasia in the Baltic tellin Limecola balthica in the Wadden Sea." Diseases of Aquatic Organisms 138 (February 27, 2020): 89–96. http://dx.doi.org/10.3354/dao03448.
Повний текст джерелаAscenso, Rita M. T. "Bioinformatic tools help molecular characterization of Perkinsus olseni differentially expressed genes." Journal of Integrative Bioinformatics 8, no. 3 (December 1, 2011): 130–40. http://dx.doi.org/10.1515/jib-2011-179.
Повний текст джерелаДисертації з теми "Bivalves – Mortalité"
Barbarin, Marine. "Environnement & espaces portuaires : suivi de la qualité du milieu pour une meilleure compréhension de l’effet de variables environnementales à une échelle spatio-temporelle." Electronic Thesis or Diss., La Rochelle, 2022. http://www.theses.fr/2022LAROS045.
Повний текст джерелаCoastal areas are important interface environments between marine and terrestrial ecosystems and are populated by abundant living communities. Among these coastal areas, the Charente coastline is an area of strong economic activities related, among others, to aquaculture, fishing and tourism, thus requiring a good quality of water and environment. However, this coastal area is under the influence of many contaminants: phytosanitary products, hydrocarbons, heavy metals, etc., of which water is the main vector. In order to preserve the Pertuis, the Marine Natural Park has set up a management plan determining the measures of protection, knowledge, enhancement and sustainable development to be implemented for the next 15 years. The QUALIPERTUIS project aims to combine a phase of laboratory tests and on-site measurements in order to provide a new perspective on the causes of bivalve mortality, as well as to understand more broadly the impact of environmental factors influencing the sanitary state of bivalves in port areas and coastal waters. In partnership with the La Rochelle Marina and Port Atlantique La Rochelle, environmental biomonitoring studies have been set up in port areas and in the Pertuis with three species of bivalve molluscs: the black scallop Mimachlamys varia, the hollow oyster Crassostrea gigas and the blue mussel Mytilus edulis. Seasonal environmental monitoring has been carried out on a total of thirteen study sites, distributed in the port areas and the Pertuis
ZALTUM, OMELKHER SALEM ALI. "Mortalità anomala in molluschi bivalvi: approcci diagnostici tradizionali e di metagenomica." Doctoral thesis, Università degli Studi di Trieste, 2017. http://hdl.handle.net/11368/2908198.
Повний текст джерелаLeverone, James R. "Comparative effects of the toxic dinoflagellate, Karenia brevis, on bivalve molluscs from Florida." [Tampa, Fla] : University of South Florida, 2007. http://purl.fcla.edu/usf/dc/et/SFE0001870.
Повний текст джерелаScott, Jennifer Claire. "Population demographics of six freshwater mussel species (Bivalvia : Unionidae) in the upper Clinch river, Virginia and Tennessee /." Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-03032009-040633/.
Повний текст джерелаValencia, Cruz José María. "Paràsits de mol·luscs bivalves a les Illes Balears: Detecció de Marteilia refringens i Perkinsus mediterraneus mitjançant tècniques moleculars." Doctoral thesis, Universitat de les Illes Balears, 2016. http://hdl.handle.net/10803/396224.
Повний текст джерелаUna de las principales limitaciones a la que se enfrenta la producción de moluscos bivalvos es la prevención y control de enfermedades, dispersadas, principalmente, por movimiento de partidas. En las Baleares, hemos encontrado parásitos de bivalvos poco patogénicos como Bucephalus haimeanus, Mytilicola intestinalis y metacercarias de tremátodos. También otros que suponen un riesgo para la producción, como Marteilia refringens, Perkinsus mediterraneus y P. olseni. La presencia de M. refringens es una grave amenaza, pues produce desórdenes fisiológicos que pueden matar al huésped. Probablemente, en los años 80, la desaparición de los bancos ostrícolas fue causada por esta enfermedad. Los mejillones también són susceptibles a la infección por M. refringens, pero són resistentes a la enfermedad. En 2004, se detectó una mortalidad en el banco de la chirla (Chamelea gallina) de s‘Arenal de Palma de Mallorca. Para detectar la especie causante de la enfermedad se recurrió a técnicas histológicas, hibridación in situ, PCR y PCR anidada. La secuencia obtenida a partir de un bloque de parafina mostró un 99,1% de similitud con M. refringens tipo O. De esta manera se concluyó que el agente etiológico era M. refringens y posteriormente, que la prevalencia era del 55,1%. La ubicación específica de las células de Marteilia refringens en los tejidos de la chirla se determinó por hibridación in situ, encontrando todas las fases conocidas, incluida la de esporulación, lo que demuestra que el parásito completa la infección en la chirla. Perkinsus mediterraneus infecta a una gran variedad de moluscos bivalvos en el archipiélago balear: Ostrea edulis, Mimachlamys varia, Arca noae, Chamelea gallina, Pinna nobilis y Venus verrucosa, sin mortalidades asociadas a este parásito. Perkinsus olseni sólo se ha detectado en V. verrucosa, pero en el presente estudio no lo hemos encontrado. La búsqueda de Perkinsus spp. se ha realizado mediante RFTM y la determinación de la especie por PCR-RFLP y secuenciación. La prevalencia de P. mediterraneus ha sido similar a la de otras especies de Perkinsus y la dinámica de su infección es similar a la de P. marinus en la bahía de Chesapeake, con valores máximos de detección del parásito en septiembre y octubre, después del máximo estival de temperatura, y regresión de la infección en invierno. Hemos encontrado 12 haplotipos de P. mediterraneus con una elevada similitud genética. Las diferencias se hacen mayores al incluir secuencias procedentes de la bases de datos del GenBank, aumentando el número de haplotipos a 24. Los análisis filogenéticos han detectado, en conjunto, tres grupos diferentes de O. edulis de Menorca, que se diferencian de otros linajes coespecíficos. Los análisis apoyan esta diferenciación entre las poblaciones de Menorca y Mallorca, la cual parece, en buena parte debida al aislamiento geográfico del puerto de Mahón. Sin embargo, otros factores, como la variabilidad ambiental, diferentes localidades y fechas de detección, la translocación de animales, la actividad humana, etc, pueden tener cierta influencia. En el Mediterráneo occidental se encuentran tres especies de Perkinsus. Aunque se conoce que se producen coinfecciones en la escupiña grabada del puerto de Mahón con P. olseni y P. mediterraneus, no hemos encontrado ningún caso, ni tampoco bivalvos afectados por P. chesapeaki, especie que se ha detectado en el delta del Ebro. En diferentes muestreos de C. gallina hemos detectado la presencia de M. refringens y P. mediterraneus. Aunque no hemos encontrado coinfección, ésta no se puede descartar, porque los individuos són muy jóvenes y posiblemente ambos patógenos estén en las fases iniciales de infección. Teniendo en cuenta que la esporulación de M. refringens se inicia cuando la temperatura del agua es de 17ºC (mes de mayo), que las zoosporas de P. mediterraneus aparecen más tarde (septiembre-octubre) y que la mortalidad se detecta en junio-julio, lo más probable es que la causa sea la marteiliosis
One of the main issues in bivalve mollusc production is the prevention and control of diseases, scattered mainly by stock movements. In the Balearic Islands, we found low pathogenic bivalve parasites as Bucephalus haimeanus, Mytilicola intestinalis and trematode metacercariae. Furthermore, we found others that are a threat for their welfare, like Marteilia refringens, Perkinsus mediterraneus and P. olseni. M. refringens is a serious threat, because it causes physiological disorders that could kill the host. Presumably, in the 80s, this disease was the agent of oyster banks die out. Mussels are susceptible to the infection, but they are resistant to the disease. Mass mortality was detected in 2004 at the striped Venus shell (Chamelea gallina) bed in S‘Arenal beach. We use histological techniques, in situ hybridization, PCR and nested PCR to detect the disease agent. From a paraffin block we retrieved a sequence which showed 99.1% similarity with M. refringens type O. Thus, it was concluded that the aetiological agent was M. refringens. Subsequently, we found a prevalence of 55.1%. Marteilia refringens specific location in striped Venus shell tissues was determined by in situ hybridization. We observed all known stages, including sporulation, thus this parasite could complete its vital cycle in C. gallina, and so striped Venus shell should be considered as a new host of M. refringens. A wide bivalve mollusc variety is infected by Perkinsus mediterraneus in Balearic Islands: Ostrea edulis, Mimachlamys varia, Arca noae, Chamelea gallina, Pinna nobilis and Venus verrucosa, but they are not killed by this parasite. Perkinsus olseni has only been detected in V. verrucosa from Mahon harbour, although we have not detected it in another bivalve species. Perkinsus spp. search was performed using RFTM and species was established by PCR-RFLP and sequencing. P. mediterraneus prevalence was similar to other Perkinsus species and their infection dynamics is like P. marinus’ in Chesapeake Bay, with maximum detection values in September and October, after summer peak temperature with infection regression in winter. We have found 12 P. mediterraneus haplotypes, all of them sharing a high similarity. Differences grow up when we added GenBank sequences. Then, the haplotype number raised 24. Three groups of O. edulis from Minorca were revealed by phylogenetic analyses which are different from other co-specifics lineages. Analysis supported this differentiation among populations from Minorca and Majorca. This differentiation could be due to Mahon harbour geographic isolation. Nevertheless, another factors, such environmental variability, different detection locations and dates, animal translocations, human activity, etc., might also have some influence. There are three Perkinsus species at the western Mediterranean. Although it is known that co-infections between P. olseni and P. mediterraneus can happen in warty Venus shell from Mahon harbour, we have not found any occurrence. Furthermore, we have not detected infection by P. chesapeaki, although it has been found in the Ebro delta. We have found out M. refringens and P. mediterraneus presence in different C. gallina samples. Although coinfection has not been found, we cannot discard it, because individuals are very young and perhaps both pathogens are in early infection stages. Given that M. refringens sporulation starts when water temperature is 17ºC (May), P. mediterraneus zoospores appear later (September-October) and mortality is detected in June-July, in this way, marteiliosis might be the candidate.
Segarra, Amélie. "Étude des interactions hôte/virus chez l’huître creuse, Crassostrea gigas, et son virus Ostreid herpesvirus 1." Thesis, Lorient, 2014. http://www.theses.fr/2014LORIS344/document.
Повний текст джерелаIn France, Ostreid herpesvirus type 1 (OsHV-1), can be considered one of the major infectious agents in Pacific oysters, Crassostrea gigas. Susceptibility differences to infection were observed in this species. Previous work suggested that the genetic basis and the survival animals to infection were related. In this context, the main objective of this thesis was to understand the interactions between oysters and OsHV-1, in particular, the molecular basis of the viral cycle. Our results shows that the virus is able to replicate in the host regardless of its stage of development or its susceptible. However, multiplication kinetic is faster in susceptible individuals compared to less susceptible individuals. After a active replication, it would appear that the virus is no detectable in survival individuals. This observation suggests (i) a remission with elimination of the virus or (ii) a virus persistence without detectable symptoms. These results highlight the ability of the virus circulating in the host without causing mortality. These individuals can excrete viral particles and interfere with the infection process in field. All these results represent a first contribution to the understanding of OsHV-1 cycle in Pacific oysters, particularly at the molecular level
Частини книг з теми "Bivalves – Mortalité"
Soon, Tan Kar, and Huaiping Zheng. "Climate Change and Bivalve Mass Mortality in Temperate Regions." In Reviews of Environmental Contamination and Toxicology, 109–29. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/398_2019_31.
Повний текст джерелаWerner, Stefan, and Karl-Otto Rothhaupt. "Mass mortality of the invasive bivalve Corbicula fluminea induced by a severe low-water event and associated low water temperatures." In Ecological Effects of Water-Level Fluctuations in Lakes, 143–50. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-9192-6_14.
Повний текст джерелаLynch, Sharon A., Andrew F. Rowley, Matt Longshaw, Shelagh K. Malham, and Sarah C. Culloty. "Diseases of molluscs." In Invertebrate Pathology, 171–216. Oxford University Press, 2022. http://dx.doi.org/10.1093/oso/9780198853756.003.0008.
Повний текст джерела