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Showing 1 to 20 of 45 for “"blue crab"”.
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Estuarine Ingress of the Blue Crab Callinectes Sapidus
… dissertation investigated ingress of postlarval blue crabs Callinectes sapidus to the Newport River estuary, North Carolina, USA. Data from C. similis, Menippe mercenaria, Pachygrapsus transversus, and Arenaeus cribrarius are included in some chapters for comparison. Changes in tolerance to low …
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Anaerobic/aerobic pretreatment of blue crab (Callinectes sapidus) cooker wastewater
Wastewater from the pressure cooking of blue crabs presents a difficult treatment challenge. COD concentrations in the range of 15,000 to 30,000 mg/L are found in this wastewater, with TKN concentrations above 2,000 mg/L. Direct discharge of the wastewater, which is currently allowed, adds …
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Enhanced Blue Crab Predation on Rangia Clams after Exposure to Hypoxia
… (Rangia cuneata) are not found within this zone. Blue crabs (Callinectes sapidus) are important estuarine predators and may move in and out of the hypoxic zone to feed on hypoxia-stressed rangia clams. To test the effects of hypoxia on predation, rangia clams were exposed experimentally to severe …
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Instrumental Methods for Determining Quality of Blue Crab (Callinectes sapidus) Meat
… investigate the aroma properties of spoiling blue crab meat. This was accomplished by use of a Cyranose 320™ Electronic Nose, Draeger-Tubes®, and solid-phase microextraction gas chromatography-mass spectrometry (SPME-GC-MS). These techniques were compared to the more established techniques for …
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Characterization and treatment of wastewater from blue crab (Callinectes sapidus) processing facilities
The process wastewater from three blue crab processing plants in Virginia was characterized. Most of these effluent streams were highly concentrated. For example, the retort water from the cookers exhibited the following concentrations: BOD₅ = 14,000-29,000 mg/L, TSS = 650-6,200 mg/L, TKN-N = …
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A Model of the Population Dynamics of the Blue Crab in Chesapeake Bay
<p>This study has particular application to the blue crab fisheries in Chesapeake Bay, an economically important industry whose successful management has been hindered by relatively poor understanding of the population dynamics. Recent biological studies have indicated a systematic spawning …
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A technology analysis of the U.S. Atlantic blue crab (Callinectes sapidus) processing industry
The dehydration rates of crabs during low temperature storage and various cooking processes were determined. Season, cooking time, and cooking method significantly affected the weight loss of crabs. The thermal energy (F250 ) crabs received during a commercial cooking process was evaluated by …
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Asymmetry Potentials, Metabolism and Ion Fluxes in Gills of the Blue Crab, Callinectes Sapidus
Made available in DSpace on 2014-12-09T23:33:52Z (GMT). No. of bitstreams: 1 6511793.pdf: 2501661 bytes, checksum: 8382832e46d3c62be24d9ac27dda0005 (MD5) Previous issue date: 1965
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Detection, activity and resistance to thermal inactivation of peroxidase in the blue crab (Callinectes sapidus)
… claw and flake meat of both male and female blue crabs was determined spectrophotometrically. Activity was greatest in the flake and least in the claw. Male crabs usually exhibited a greater initial activity (λ 0D 460/min) than did females of equal size. The larger the crab for a given sex, …
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Feasibility study for packaging and pasteurizing meat of the blue crab, Callinectes sapidus, in retort pouches
… was to determine the feasibility of pasteurizing crabmeat in retort pouches compared to cans. Retort pouches and cans were packed with various amounts of crabmeat, pasteurized to an internal temperature of 185°F (85°C) for 1 min, and subsequently cooled. The criteria for evaluation were total …
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Quantifying Discard Mortality of Undersized and Ovigerous Crabs in the Gulf of Mexico Blue Crab Fishery
<p>Blue crabs support a valuable commercial fishery in the Gulf of Mexico. Most states require the release of undersized and ovigerous blue crabs, yet mortality of these discarded crabs is an understudied component of total mortality. The first objective of this project was to quantify discard …
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Linkages between Marsh Fragmentation, Prey Availability, and Blue Crab (<i>Callinectes sapidus</i>) Abundance and Mortality
… establishment in newly created open water areas. Blue crabs, <em>Callinectes sapidus</em>, use both marsh edge and SAV habitat during the juvenile stages and support one of the largest fisheries in the Gulf of Mexico, worth over $70 million in 2015. This thesis studied the linkages between habitat …
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Treatment of blue crab processing wastewater using Upflow Anaerobic Sludge Blanket (UASB) and air stripping technologies
Crab cooker wastewater contains high concentrations of chemical oxygen demand (COD), total suspended solids (TSS), and total Kjeldahl nitrogen (TKN). Biological treatment of the wastewater releases high concentrations of ammonia. In this study, UASB treatment of crab cooker wastewater was …
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Sodium and glucose transport across the in vitro perfused midgut of the blue crab, Callinectes sapidus Rathbun
The principal objectives of the present study are: (1) to investigate sodium transport across the midgut as well as the hindgut of Callinectes sapidus and the functioning of these two regions of the gut in osmotic and ionic regulation of the animal, and (2) to elucidate the mechanism of glucose …
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Regional Variation in Migratory Behavior and Reproductive Output of The Gulf Of Mexico Blue Crab Spawning Stock
… understand the structure and boundaries of the blue crab stock(s) in the Gulf of Mexico, focusing on large-scale movements of spawning female crabs. Because spawning location is a primary determinant of larval transport pathways, understanding spawning locations and offshore movements of female …
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Effects of high hydrostatic pressure processing on Bacillus cereus spores in fresh blue crab meat (Callinectes sapidus)
… is the presence of Bacillus cereus in fresh blue crab meat. Bacillus cereus is a spore-forming pathogen whose spores survive the customary thermal treatments applied during cooking and pasteurization; therefore it could potentially present a health concern to consumers as the microorganism …
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Recruitment of Blue Crab, <i>Callinectes sapidus,</i> Postlarvae to the Back-Barrier Lagoons of Virginia's Eastern Shore
<p>Most research on the early life history of the blue crab, Callinectes sapidus, has been conducted in large partially stratified estuaries such as the Chesapeake Bay. In contrast, little is known about the recruitment dynamics or habitat requirements of blue crab postlarvae (megalopae) in shallow …
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