Bivalve culture is of considerable economic and social interest in northeastern (NE) Brazil. The polyculture is an alternative approach to traditional monoculture for reducing the environmental impact of shrimp farming and improving oyster culture. Perkinsus marinus and Perkinsus olseni were found infecting oysters in NE Brazil and can threaten oyster production. This study evaluated Perkinsus ...

to understand the present status of metal contamination along the haiphong-halong coast, the concentrations of as, cd, cr, cu, pb, and zn were seasonally determined in rock oysters from four sites during 2013. the results indicated that a high concentration of heavy metals was found in oysters. the average concentrations of zn and cu were extremely high, ranging from 823.6–3201.6 and 238.1–1597...

both micronuclei (mn) and binuclei (bn) as well as rapd (random amplifying polymorphism of dna) assays are newly biomarkers which are well-introduced in toxic injury and related genotoxicity studies in bivalve, fishes and even humans. however, there is no record of such studies in iranian persian gulf coast line so far. for this propose, we analyzed frequency of mn and rapd patterns in gill ...

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...

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).

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...

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...

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...

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...

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-...