Results 201 to 210 of about 9,369 (253)

Bivalve Mollusks: Control of Microbiological Contaminants

BioScience, 1982
Historically, shellfish made a significant contribution to the American diet. Early inhabitants found abundant supplies of bivalve mollusks that could easily be harvested year-round. Shellfish, along with an ample supply of fish, provided high quality protein with little effort or cost to the consumer.
Edward P. Larkin, Daniel A. Hunt
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Environmental and Evolutionary Stability in Bivalve Mollusks

Science, 1974
There is no relationship between environmental stability [as indicated by infaunal (stable) versus epifaunal (unstable) habits] and the generic duration of extinct marine bivalve mollusks when the effects of cosmopolitanism (which is associated with long generic durations) and other paleontological "noise" are excluded.
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Bivalve Mollusks: Fluid Dynamics of Burrowing

Science, 1966
When bivalves burrow into soft substrates the foot is first extended and then dilated to obtain a firm anchorage before retraction pulls the shell downward. Pedal dilation is principally caused by adduction of the valves. The hinged shell functions as a hydraulic machine in which the strength of the adductor muscles is transferred to the distal part of
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Acrosomal ATPase in starfish and bivalve mollusk spermatozoa

Experimental Cell Research, 1973
Abstract ATPase activity was found in acrosomes of starfish and bivalve mollusk spermatozoa, using a cytochemical method with electron microscopy. The activity was located in central material of the starfish acrosome and in material lining the acrosomal membrane of the Mytilus acrosome, as well as in the basal part of the starfish acrosome.
Y, Mabuchi, I, Mabuchi
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Succinate and lactate oxidoreductases of bivalve mollusks

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1975
Abstract 1. 1. Succinic acid is a major end product of anaerobic glycolysis in mollusks, and lactic acid is a minor product. On the hypothesis that production of these acids is partially controlled by properties of the enzymes catalyzing the final step in each pathway, extracts of the adductor muscle were prepared and used in oxidoreductase ...
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Permian bivalve mollusks of Northeast Asia

Journal of Asian Earth Sciences, 2006
Abstract Bivalve mollusks are very important in the Permian biota of Northeast Asia. During the Permian the bivalves had different distribution patterns both in space and time, and their occurrence was governed by many factors related to water depth and geodynamic conditions. In Northeast Asia there were two main bivalve paleocommunities, shallow and
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Molecular Detection and Genetic Analysis of Betanodaviruses in Bivalve Mollusks

Journal of Biotechnology, 2010
Betanodaviruses are small ssRNA viruses responsible of Viral Nervous Necrosis in marine fishes worldwide. In this study, we examined bivalve mollusks for the presence of Betanodavirus and genetically analyzed the detected viruses to find out whether these animals could be a source of genetically closely related Betanodaviruses transmissible ...
Ciulli S., Grodzki M., Bignami G., Serratore P., Prosperi S.   +4 more
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Bivalve Mollusks as Hosts in the Fossil Record

2021
Parasites are ubiquitous in modern ecosystems, occupy one of the most successful life modes, promote ecosystem stability, and, despite their typically diminutive size and lack of a mineralized skeleton, are commonly identifed in the fossil record. Bivalve mollusks have occupied marine aquatic environments since the Cambrian, comprise an excellent ...
John Warren Huntley, Kenneth De Baets, Daniele Scarponi, Liane Christine Linehan, Y. Ranjeev Epa, Gabriel S. Jacobs, Jonathan A. Todd   +6 more
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[Gonad innervation in bivalve mollusks].

Arkhiv anatomii, gistologii i embriologii, 1983
In marine Lamellibranchia--Patinopecten yessoensis (Jay) and Crenomytilus grayanus (Dunker)--neural cells, small ganglia and neural fibres have been revealed in the gonad wall. The sensitive and effector parts are presented by rather variable morphological formations.
A A, Varaksin, I I, Deridovich, N I, Shvaleva   +2 more
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Marine boring bivalve mollusks from Isla Margarita, Venezuela

The Festivus, 2017
Marine endolithic and wood-boring bivalve mollusks living in rocks, corals, wood, and shells were surveyed on the Caribbean coast of Venezuela at Isla Margarita between 2004 and 2008. These surveys were supplemented with boring mollusk data from malacological collections in Venezuelan museums.
Marcel Velasquez, Paul Valentich-Scott, Juan Capelo   +2 more
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