نتایج جستجو برای: oyster

تعداد نتایج: 5206  

2016
Seth J. Theuerkauf Romuald N. Lipcius

Habitat suitability index (HSI) models provide spatially explicit information on the capacity of a given habitat to support a species of interest, 2 and their prevalence has increased dramatically in recent years. Despite caution that the reliability of HSIs must be validated using independent, 4 quantitative data, most HSIs intended to inform terrestrial and marine species management remain un...

2012
Timm Kroeger

Table 8: Mobile Bay system characteristics and mean estimates of N removal by oyster reefs, from zu Ermgassen et al. Figure 2-6: Reduction in incident wave height by Barton Island oyster reef, for high-impact wave (top left panel) and median wave (top right panel).

Journal: :The Journal of experimental biology 2004
I M Sokolova

Marine intertidal mollusks, such as oysters, are exposed to multiple stressors in estuaries, including varying environmental temperature and levels of trace metals, which may interactively affect their physiology. In order to understand the combined effects of cadmium and elevated temperature on mitochondrial bioenergetics of marine mollusks, respiration rates and mitochondrial volume changes w...

Journal: :Journal of clinical microbiology 2012
Jessica L Jones Catharina H M Lüdeke John C Bowers Nancy Garrett Markus Fischer Michele B Parsons Cheryl A Bopp Angelo DePaola

In this study, 77 clinical and 67 oyster Vibrio parahaemolyticus isolates from North America were examined for biochemical profiles, serotype, and the presence of potential virulence factors (tdh, trh, and type III secretion system [T3SS] genes). All isolates were positive for oxidase, indole, and glucose fermentation, consistent with previous reports. The isolates represented 35 different sero...

2016
David A Kaplan Maitane Olabarrieta Peter Frederick Arnoldo Valle-Levinson

Oyster reefs provide myriad ecosystem services, including water quality improvement, fisheries and other faunal support, shoreline protection from erosion and storm surge, and economic productivity. However, their role in directing flow during non-storm conditions has been largely neglected. In regions where oyster reefs form near the mouth of estuarine rivers, they likely alter ocean-estuary e...

2017
Jason W. Peters David B. Eggleston Brandon J. Puckett Seth J. Theuerkauf

Fishery species that reside in no-take, marine reserves often show striking increases in size and abundance relative to harvested areas, with the potential for larval spillover to harvested populations. The benefits of spillover, however, may not be realized if the populations or habitats outside of reserves are too degraded. We quantified oyster population density and demographics such as recr...

Journal: :caspian journal of environmental sciences 2012
m. mohammadi al. et

this study is an attempt to evaluate the biomonitoring capabilities of rock oyster, saccostrea cucullata, for mercury (hg) pollution. the oyster and sediment samples were collected from 10 rocky habitats of qeshm and hormoz islands in the persian gulf. the concentration of mercury in the shell and soft tissues of the oysters and sediments were analyzed using an advanced mercury analyzer. biota-...

2017
Jun Li Yuehuan Zhang Fan Mao Ying Tong Ying Liu Yang Zhang Ziniu Yu

Citation: Li J, Zhang Y, Mao F, Tong Y, Liu Y, Zhang Y and Yu Z (2017) Characterization and Identification of Differentially Expressed Genes Involved in Thermal Adaptation of the Hong Kong Oyster Crassostrea hongkongensis by Digital Gene Expression Profiling. Front. Mar. Sci. 4:112. doi: 10.3389/fmars.2017.00112 Characterization and Identification of Differentially Expressed Genes Involved in T...

Journal: :Biochemical and biophysical research communications 2005
Marcelo Gonzalez Bernard Romestand Julie Fievet Arnaud Huvet Marie-Christine Lebart Yannick Gueguen Evelyne Bachère

We have characterized in the oyster Crassostrea gigas an extracellular superoxide dismutase (Cg-EcSOD) which appears to bind lipopolysaccharides (LPS). The protein has been purified from the oyster plasma and identified as a Cu/ZnSOD according to its N-terminal sequencing and biological activity. Cg-EcSOD expression and synthesis are restricted to hemocytes as revealed by in situ hybridization ...

Journal: :The FEBS journal 2009
Caroline Fabioux Charlotte Corporeau Virgile Quillien Pascal Favrel Arnaud Huvet

This study investigated the potential of RNA interference, which is technically challenging in bivalve mollusc species, to assess gene function in the oyster Crassostrea gigas. We designed dsRNA targeting the oyster vasa-like gene (Oyvlg), specifically expressed in oyster germ cells. In vivo injection of oyvl-dsRNA into the gonad provokes a knockdown phenotype corresponding to germ cell underpr...

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