نتایج جستجو برای: hediste diversicolor
تعداد نتایج: 297 فیلتر نتایج به سال:
Macrobenthic intertidal assemblages from five Atlantic Iberian estuaries were analyzed to develop an estuarine index. An R-mode analysis revealed a close association between the isopod Cyathura carinata, the polychaete Hediste diversicolor and the bivalve Scrobicularia plana. Although these species are abundant in all the estuaries considered, they tend to be absent from sites at the marine and...
IT has been shown by McCutcheon & Lucke (1928) that in glucose solutions isotonic with 40 per cent sea water, the eggs of the sea-urchin Arbada absorb twice as much water as they do from 40 per cent sea water, and that this increased imbibition is prevented by a small concentration of calcium ion in the glucose solution, even in the absence of the other cations of sea water. Pantin (1931a) show...
Random amplified polymorphic DNA (RAPD) with universal rice primers (URP) was used to identify species and to determine phylogenetic relationships for the 6 economically important Korean Pacific abalone species: Haliotis discus hannai, H. discus discus, H. madaka, H. gigantea, H. diversicolor supertexta, and H. diversicolor diversicolor, whose morphological differentiation is difficult. Of the ...
Evaluation of the chloride exchanges of Nereis diversicolor in the steady state has shown that this worm 'cuts its losses', i.e. reduces the fluxes, of chloride at very low salinities (Smith, 1970a), and that this reduction of chloride loss takes place mainly in the urinary component of the efflux, as has also been suggested by previous authors. Jorgensen & Dales (1957) measured the rates of os...
Characterization of free-living and attached bacteria in sediments colonized by Hediste diversicolor
An indirect fluorescent antibody test (IFAT) for detection of Toxoplasma gondii infection was validated using serum from 77 necropsied southern sea otters (Enhydra lutris nereis) whose T. gondii infection status was determined through immunohistochemistry and parasite isolation in cell culture. Twenty-eight otters (36%) were positive for T. gondii by immunohistochemistry or parasite isolation o...
Cultivation of the common ragworm—Hediste diversicolor—has attracted a great deal interest in recent years. Growth optimization is key aspect for its intensive production. We have assessed effect body weight (Bw) and temperature (T) on growth-related parameters ragworm using correlation multiple regression analyses. used ragworms 13 different classes 15-day growing assays at 12 values. These po...
Bioaccumulation of cadmium was assessed in different tissues the benthic fish Solea senegalensis. Juvenile Senegalese soles were simultaneously exposed to cadmium-contaminated diet (Hediste diversicolor) and water during 14 days allowed depurate for another days. Cadmium content measured muscle, gills, liver intestine, with recorded values increasing these this same order. Muscle showed a consi...
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