Recently added articles from Journal of Shellfish Research:
Survival and growth of triploid Crassostrea virginica (Gmelin, 1791) and C. ariakensis (Fujita, 1913) in bottom environments of Chesapeake Bay: implications for an introduction.(Report)
Apr 01, 2009; ... ABSTRACT Survival and growth of triploid Crassostrea virginica and triploid C. ariakensis were investigated at four sites surrounding Chesapeake Bay, United States, that varied in salinity, tidal regime, water depth, predation intensity and disease pressure. Four experimental treatments ...
Assessing in situ tolerances of eastern oysters (Crassostrea virginica) under moderate hypoxic regimes: implications for restoration.(Report)
Apr 01, 2009; ... ABSTRACT Increases in the frequency and duration of hypoxia and the loss of biogenic reefs are two of the most prominent environmental insults to estuaries. We investigated the interaction between moderate hypoxia and habitat restoration activities on estuarine ecosystems by measuring ...
Population studies of the native Eastern oyster, Crassostrea virginica, (Gmelin, 1791) in the James River, Virginia, USA.(Report)
Apr 01, 2009; ... ABSTRACT We describe oyster population trends in the James River, VA from 1993 through 2006 using quantitative fishery independent survey data collected using a stratified random design. The 23 reefs contained in the study area cover a total of 2.41 x [10.sup.7] [m.sup.2] and vary in ...
Consumption of Scrippsiella lachrymosa resting cysts by the eastern oyster (Crassostrea virginica).(Report)
Apr 01, 2009; ... ABSTRACT Scrippsiella spp. resting cysts, unlike many other dinoflagellate cysts, possess an outer layer of calcite beneath which is a thin sporopollenin wall. This feature may affect cyst survival through the digestive tract of benthic organisms, when they consume the cysts. The extent of ...
Identification and characterization of 66 EST-SSR markers in the eastern oyster Crassostrea virginica (Gmelin).(Report)
Apr 01, 2009; ... ABSTRACT Large numbers of genetic markers are needed for genomic analyses in the eastern oyster (Crassostrea virginica). We previously identified 53 simple sequence repeat (SSR) markers from an expressed sequence tag (EST) database using a high selection standard. We mined the same EST ...
A bioeconomic analysis of management plans for the public oyster grounds of the Rappahannock River.(Report)
Apr 01, 2009; ... ABSTRACT A program for restoration of the public oyster grounds at the mouth of the Rappahannock River was initiated by the Commonwealth of Virginia in 2000. Responding to pressure from harvesters, the state developed a management strategy that allows commercial harvest from some of these ...
Effects of oyster depuration gear on eelgrass (Zostera marina L.) in a low density aquaculture site in Long Island Sound.(Report)
Apr 01, 2009; ... ABSTRACT Oyster (Crassostrea virginica) aquaculture has a long history and tradition in Long Island Sound (Connecticut, USA). Although most of the producers practice traditional on-bottom aquaculture, there are a growing number of individuals utilizing bottom gear for cultivation and ...
Oysters and aquaculture practices affect eelgrass density and productivity in a Pacific Northwest estuary.(Report)
Apr 01, 2009; ... ABSTRACT The presence of bivalves and bivalve aquaculture can have positive and negative impacts on seagrass and associated benthic communities. Some oyster (Crassostrea gigas) aquaculture methods recently have been restricted to reduce benthic disturbance and protect native eelgrass ...
Evaluation of fecal pollution indicators in an oyster quality assurance program: application of epidemiological methods.(Report)
Apr 01, 2009; ... ABSTRACT Shellfish Quality Assurance programs rely on the use of bacteriological fecal pollution indicators as a routine monitoring tool for risk assessment and management in shellfish growing areas. Internationally, shellfish programs vary in detail but are typically based on either the ...
Sustainability of northern quahogs (= hard clams) Mercenaria mercenaria, linnaeus in Raritan Bay, New Jersey: assessment of size specific growth and mortality.(Report)
Apr 01, 2009; ... ABSTRACT In 2000, the northern quahog (=hard clams) Mercenaria mercenaria population was surveyed in Raritan Bay with the purpose of determining sustainable harvest levels. To complement this population survey, we determined the size-at-age structure and experimentally determined mortality ...
Evaluating the use of exhalent siphon area in estimating feeding activity of blue mussels, Mytilus edulis.(Report)
Apr 01, 2009; ... ABSTRACT We evaluated the technique of measuring the exhalant siphon area (ESA) as an indicator of feeding activity in the blue mussel, Mytilus edulis. To accomplish this, we established the relationships between ESA measured using video and image analysis and clearance rate (CR) measured ...
Shell traits of a marine mussel mediate predation selectivity by crabs and sea stars.(Report)
Apr 01, 2009; ... ABSTRACT Crabs and sea stars are known to preferentially select mussels with morphological traits that diminish the predators' searching or handling times. I compared two distinct morphotype of mussels (Mytilus trossulus; Gould, 1850) from Howe Sound, British Columbia, Canada, by ...
Energy storage and reproduction in mussels, Mytilus galloprovincialis: the influence of diet quality.(Report)
Apr 01, 2009; ... ABSTRACT The effect of diet quality on reproduction and energy storage in bivalves has not been widely investigated. Food quality and quantity influences reproductive success in many bivalve species, and the timing and rate of reproductive maturation is a dominant influence on natural ...
Differential retention of okadaic acid (OA) group toxins and pectenotoxins (PTX) in the blue mussel, Mytilus edulis (L.), and European flat oyster, Ostrea edulis (L.).(Report)
Apr 01, 2009; ... ABSTRACT This paper presents the results from an experiment, where uptake and elimination of diarrhetic shellfish toxins (DST) of the okadaic acid (OA) and pectenotoxin (PTX) groups were compared between blue mussels (Mytilus edulis) and European oysters (Ostrea edulis). Caged mussels and ...
Non-destructive method to study the internal anatomy of the Chilean scallop Argopecten purpuratus.(Report)
Apr 01, 2009; ... ABSTRACT Scallop aquaculture has a 20-y-old history in Coquimbo, Chile. At the beginning develop and introduce on industrial level the culture techniques was the main goal, but in recent years research to improve the broodstock quality has been introduced. Development of non destructive ...
Evaluation of quality indices of the gonad and somatic tissues involved in reproduction of the pearl oyster Pinctada mazatlanica with histochemistry and digital image analysis.(Report)
Apr 01, 2009; ... ABSTRACT We evaluated indicators of quality for female gonads (ovary and oocytes), male gonads (testis and seminal tubules), and selected somatic tissues (fiber packages in the adductor muscle and adenomeres in the digestive gland) that participate in reproduction of the pearl oyster ...
Histological studies on gametogenesis, hermaphroditism and the gametogenic cycle of Anodonta gabillotia pseudodopsis (Locard, 1883) in the Lake Golbasi, Turkey (Bivalvia: Unionidae).(Report)
Apr 01, 2009; ... ABSTRACT This study describes the seasonal reproductive cycle, gonad structure, and sex ratio of the Anodonta gabillotia pseudodopsis. A total of 300 individuals was collected in monthly samples from September 2005 to August 2006 in Golbasi Lake, Turkey. Calculation of the gonadosomatic ...
Field evaluation of mortality from hemolymph extraction as a source of DNA, and application to PCR-RFLP identification of threatened freshwater mussel species.(polymerase chain reaction-restriction fragment length polymorphism)(Report)
Apr 01, 2009; ... ABSTRACT Evolutionary convergence and plasticity of shell characters creates great confusion in freshwater mussel systematics and complicates field census efforts. Genetic identification offers a powerful alternative. But methods involving DNA sequencing are expensive and require tissue ...
Brown muscle disease and Manila clam Ruditapes philippinarum dynamics in Arcachon Bay, France.(Report)
Apr 01, 2009; ... ABSTRACT Brown Muscle Disease (BMD) affects Manila clam Ruditapes philipphinarum. It was described for the first time in 2005 in Arcachon Bay, France. The pathology consists in a progressive necrosis of the posterior adductor muscle, valve gaping, clam migration to the sediment surface, ...
Mortality of the veined rapa whelk, Rapana venosa, in relation to a bloom of Alexandrium monilatum in the York River, United States.(Report)
Apr 01, 2009; ... ABSTRACT Veined rapa whelks (Rapana venosa), carnivorous marine gastropods experienced significant mortality during an Alexandrium monilatum bloom in the lower York River, VA in September 2007. Rapa whelks stopped feeding as dissolved oxygen and chlorophyll concentrations increased with ...