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Journal of Shellfisheries Research

Evidence of recent recruitment in the ocean quahog Arctica islandica in the Mid-Atlantic Bight

Evidence of recent recruitment in the ocean quahog Arctica islandica in the Mid-Atlantic Bight Eric N. Powell ABSTRACT We report results of a survey explicitly focused on ocean quahog recruitment in the Mid-Atlantic Bight. The recruitment survey resampled all NMFS survey sites south of Hudson Canyon and a selection of sites north and east of […]

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Journal of Shellfisheries Research

Size specific fecundity of red abalone : evidence for reproductive senescence?

Size specific fecundity of red abalone : evidence for reproductive senescence? Laura Rogers-Bennett ABSTRACT The fecundity of wild red abalone. Haliotis rufescens, was examined during four reproductive seasons (2000-2003) in northern California. A broad size range of abalone were sampled (n = 425) from Van Damme State Park and the Point Arena area. Sexual maturity […]

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Journal of Shellfisheries Research

Karyotype composition in three California abalones and their relationship with genome size

Karyotype composition in three California abalones and their relationship with genome size Cristian Gallardo-Escarate ABSTRACT The fundamental goal in cytogenetics is to analyze how the structure and behavior of chromosomes guarantee the conservation of the genetic information throughout the process of inheritance, and how the chromosomal variations could affect the evolutionary process. The aim of […]

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Journal of Shellfisheries Research

A comparative evaluation of the habitat value of shellfish aquaculture gear, submerged aquatic vegetation and a non-vegetated seabed

A comparative evaluation of the habitat value of shellfish aquaculture gear, submerged aquatic vegetation and a non-vegetated seabed Joseph T. Dealteris ABSTRACT The habitat value of modified rack and bag, shellfish aquaculture gear (SAG) used for the grow-out phase of the American oyster, Crassostrea virginica, submerged aquatic vegetation (SAV), Zostera marina, and a shallow nonvegetated […]

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Journal of Shellfisheries Research

Separation of recently settled manila clams, Tapes philippinarum , from three sediment types using sucrose density solution

Separation of recently settled manila clams, Tapes philippinarum , from three sediment types using sucrose density solution Daphne M. Munroe ABSTRACT Thorough study of the life history of important fishery and aquaculture shellfish species is essential for the most appropriate management and development of the resource. The early juvenile life stages of wild intertidal clam […]

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Journal of Shellfisheries Research

Thermotolerance and Hsp70 profiles in adult and embryonic California native oysters, Ostreola conchaphila

Thermotolerance and Hsp70 profiles in adult and embryonic California native oysters, Ostreola conchaphila Heather M. Brown ABSTRACT The oyster Ostreola conchaphila is endemic to shallow subtidal and low intertidal marine waters of the West coast of North America. The heat shock response of the species was characterized for both adult and early life stages. O. […]

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Journal of Shellfisheries Research

Life history of the sand shrimp, Crangon septemspinosa Say, in a southern Gulf of St. Lawrence estuary

Life history of the sand shrimp, Crangon septemspinosa Say, in a southern Gulf of St. Lawrence estuary A. Locke ABSTRACT Body size, sex ratio and timing of reproduction of the sand shrimp, Crangon septemspinosa Say (1818), and the distribution of larvae and adults with respect to temperature and salinity, were studied in the estuary of […]

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Journal of Shellfisheries Research

Long-term projections of eastern oyster populations under various management scenarios

Long-term projections of eastern oyster populations under various management scenarios Stephen J. Jordan ABSTRACT Time series of fishery-dependent and fishery independent data were used to parameterize a model of oyster population dynamics for Maryland’s Chesapeake Bay. Model parameters are (1) fishing mortality, estimated from differences between predicted and reported landings scaled to a fishery-independent estimate […]

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Journal of Shellfisheries Research

Seasonal changes in biochemical composition of the clam, Eurhomalea exalbida , from the beagle channel, Argentina

Seasonal changes in biochemical composition of the clam, Eurhomalea exalbida , from the beagle channel, Argentina Betina J. Lomovasky ABSTRACT Seasonal changes in biochemical composition (protein, glycogen, and lipid content) of different organs (FV, foot-visceral mass: M, adductor muscles; and GMS, gills-mantle-siphons) of the clam Eurhomalea exalbida from Ushuaia Bay (54[degrees]50’S, Beagle Channel. Tierra del […]

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Journal of Shellfisheries Research

Effects of salinity and dietary carbohydrate levels on growth and energy budget of juvenile Litopenaeus vannamei

Effects of salinity and dietary carbohydrate levels on growth and energy budget of juvenile Litopenaeus vannamei Xingqiang Wang ABSTRACT The culture of Litopenaeus vannamei in low-salinity waters is now popular in many regions of the world, A 6 x 3 factorial experiment was conducted to determine the effects of salinities (tap water, 1 [per thousand], […]