Results 71 to 80 of about 1,874 (116)

Diseases of crayfish: A review

Journal of Invertebrate Pathology, 2011
A systematic review of parasites, pathogens and commensals of freshwater crayfish has been conducted. All major groups of disease causing agents have been covered including viruses, bacteria, fungi, protistans and metazoans. Most agents tend to cause limited problems for crayfish. Exceptions to this include fungi, bacteria and viruses. However, in many
Matt Longshaw
exaly   +3 more sources

Dominance in Crayfish

Science, 1996
I am an 8th-grade student at Westland Middle School in Bethesda, Maryland. I read with interest the article “Neurobiology: Social status sculpts activity of crayfish neurons” by Marcia Barinaga (Research News, [19 Jan., p. 290][1]), which discussed the report “The effect of social experience on serotonergic modulation of the escape circuit of crayfish”
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That Was a Crayfish

JAMA: The Journal of the American Medical Association, 1977
To the Editor.— As any of the gourmets among your readers will have recognized, the specimen on the cover of the May 2 issue (237:cover, 1912, 1977) would never have graced the dinner table of any self-respecting Yankee from Maine. That animal is not a lobster, but rather a crayfish. The American lobster ( Homarus americanus ) is readily identified by
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Curve Walking in Crayfish

Journal of Experimental Biology, 1996
ABSTRACT Curve walking of crayfish Astacus leptodactylus was investigated by exploiting their optomotor response. The animal walked while spatially fixed on a motor-driven treadmill and turning behaviour was induced by an optical stimulus, a pattern consisting of vertical stripes moving in a horizontal direction.
Cruse, Holk, Silva Saavedra, M. G.
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Crayfish and Drosophila NMJs

Neuroscience Letters, 2020
Many synaptic studies have utilized the experimental advantages of the Arthropod NMJ and the most prominent preparations have been the crayfish and Drosophila larval NMJs. Early cellular studies in the crayfish established the framework for later molecular studies in Drosophila.
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Crayfish extinctions and crayfish plague in central Ireland

Biological Conservation, 1988
Abstract The white-clawed crayfish Austropotamobius pallipes (Lereboullet) has been losing ground in Western Europe but remains widespread in Ireland, whose stocks are well-studied and of European conservation importance. Crayfish fungal plague, fatal to white-clawed crayfish, has affected all other European countries; it was first diagnosed in an ...
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Aphanomycosis of crayfish: crayfish plague

2021
Environment Agency Archives North ...
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Carotenoids of Cavernicolous Crayfish

Science, 1964
Small amounts of β-carotene and lutein were found in Orconectes pellucidus pellucidus . Cambarus bartonii tenebrosus from the same cave contained much less carotenoid than surface crayfish. Astaxanthin, the principal carotenoid of most Crustacea, was absent from O. p. pellucidus
D G, WOLFE, D G, CORNWELL
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Interneurons in the tritocerebrum of the crayfish

Brain Research, 1987
In isolated head preparations of the freshwater crayfish Orconectes limosus 268 local and projecting interneurons with branches in the tritocerebrum have been penetrated with glass microelectrodes and characterized for their sensory inputs. Using 3 criteria (sensory modality, site of receptors, response type of interneurons), the interneurons found ...
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Architectonics of crayfish ganglia

Microscopy Research and Technique, 2003
AbstractThe central nervous system of crayfish consists of a chain of segmental ganglia that are linked by cables of intersegmental axons. Each ganglion contains a highly‐ordered core of longitudinal tracts, vertical tracts, commissures, and synaptic neuropils.
Brian, Mulloney, Naranzogt, Tschuluun, Wendy M, Hall   +2 more
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