Results 161 to 170 of about 857 (199)

Identification and characterisation of hemocyanin of the fish louse Argulus (Crustacea: Branchiura)

Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology, 2015
Hemocyanin transports oxygen in the hemolymph of many arthropod species. Within the crustaceans, this copper-containing protein was thought to be restricted to Malacostraca, while other crustacean classes were assumed to employ hemoglobin or lack any respiratory protein.
Andrej Fabrizius, Christian Pick, Thorsten Burmester   +2 more
exaly   +3 more sources

The occurrence of Argulus (Crustacea: Branchiura) in Scotland

Journal of Fish Biology, 1971
Records of the distribution of the genus Argulus in Scotland are given. The occurrence of A. coregoni Thorell in the River Clyde is confirmed.
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A redescription of Dolops ranarum (Stuhlmann, 1891) (Crustacea: Branchiura)

Systematic Parasitology, 1989
The branchiuran ectoparasite Dolops ranarum (Stuhlmann, 1891) was described almost one hundred years ago. This descriptional though valid is incomplete. A redescription is given. New information was obtained with light and scanning electron microscopy. Morphometric values are included and a species diagnosis is presented.
Annemarié Avenant, G. C. Loots, J. G. Van As   +2 more
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A Rational Look at Parasitic Copepoda and Branchiura

1976
According to the type of their host-parasite relationship, parasitic copepods of fishes can be divided into three categories: ectoparasites, mesoparasites and endoparasites. Many ectoparasites and all mesoparasites are very injurious but the endoparasites appear to be relatively harmless.
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Structure of the adult ovary and oogenesis inArgulus japonicus thiele (Crustacea: Branchiura)

Journal of Morphology, 1997
The adult ovary of the branchiuran Argulus japonicus is a single, median, long sac-like organ located in the thorax above the alimentary canal. A long germarium, including oogonia, very early previtellogenic oocytes, and young somatic cells (interstitial cells), is embedded in the dorsal ovarian wall along the median longitudinal line of the ovary. The
Kyosuke, Ikuta, Toshiki, Makioka
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Comments on the morphology of the pre‐oral spine in Argulus (Crustacea: Branchiura)

Journal of Morphology, 1992
AbstractA histological study of the pre‐oral spine and associated structures in Argulus japonicus reveals that two exceptionally long and slender muscles casuse retraction of the spine into the spinal sheath. Originating from the body wall mid‐dorsally the two muscles proceed through the nerve ring and the blood‐filled lumen of the spinal sheath before
J H, Swanepoel, Annemarie, Avenant-Oldewage   +1 more
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The ultrastructure of the digestive cells of Argulus japonicus, Thiele 1900 (Crustacea: Branchiura)

Arthropod Structure & Development, 2009
The ultrastructure of the cells of the digestive system of Argulus japonicus is described with the use of transmission electron microscopy. Specimens of Argulus japonicus were collected from the Vaal Dam in South Africa and fixed in Todd's fixative. The samples were post fixed in osmium tetroxide and embedded in resin.
Q, Tam, A, Avenant-Oldewage
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The Ultrastructure of the Newly Hatched Argulus Japonicus Thiele, 1900 Larvae (Branchiura)

Crustaceana, 1995
Abstract Fcrtilized Argulus japonicus Thiele, 1900, eggs were hatched in the laboratory. The morphology of the first developmental stage was studied by means of scanning electron microscopy and light microscopy. The surface topography of the carapace and appendages are described.
Edie Lutsch, Annemariè Avenant-Oldewage
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Global diversity of fishlice (Crustacea: Branchiura: Argulidae) in freshwater

Hydrobiologia, 2007
The Branchiura of freshwater habitats, consisting of the valid genera Argulus, Chonopeltis, Dipteropeltis, and Dolops, presently contains 113 valid species and 12 undescribed species. The entire group is composed of ectoparasitic species that usually live on fishes.
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The genus Argulus (Crustacea: Branchiura) in Africa: identification keys

Systematic Parasitology, 1994
Two keys to the African species of Argulus have been constructed, the first of which is applicable to either sex and the second is based on the male accessory copulatory structures.
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