Studies on the Aquiculture of Sulculus diversicolor diversicolor-I
نویسندگان
چکیده
منابع مشابه
The Effects of Phthalates on Nereis diversicolor
Animals are exposed, in the natural environment, to a range of human activity related dissolved chemicals that are potentially impacting on their fitness. The animals responses to such stress determines its fitness, physiology and in case of chemical signals also its behaviour. If physical or chemical changes in the ecosystem make the detection of such a chemical impossible, then it can be reas...
متن کاملHypo-osmotic urine in Nereis diversicolor.
Although Beadle a9 early as 1937 suggested that the urine of Nereis diversicolor O. F. Miiller might be of lower concentration than the body fluids when this worm is hyperregulating in low salinities, there has been no direct measurement of urine concentration to support this reasonable idea. Jorgensen & Dales (1957) studied osmotic water uptake and loss in N. diversicolor and calculated that t...
متن کامل(Corophium vol utator, Macoma balthica, Nereis diversicolor)
Acute toxicity of hexavalent chromium to 3 estuarine ammals (Corophium volutator, Macoma balthica, Nereis diversicolor) has been studied at 3 temperatures (5, 10, 15 'C) and a range of salinities (5 to 40 %o, in 5 %O increments), at time intervals of up to 384 h. Toxicity increased as temperature increased and as salinity decreased. From an analysis of variance, the significant factors and thei...
متن کاملThe Water and Electrolyte Exchange of Nereis Diversicolor (muller)
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...
متن کاملStudies in Animal Locomotion Viii. the Kinetics of Locomotion of Nereis Diversicolor
(With One Plate and Eight Text-figures) THE locomotory movements of a typical polychaete worm, such as Nereis diversicolor, are of interest in that they are effected by two distinct mechanisms, (i) a series of parapodia which act as levers comparable to the appendages of terrestrial animals, (ii) the longitudinal muscles of the body. When Nereis is moving slowly over a solid surface, only the p...
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ژورنال
عنوان ژورنال: NIPPON SUISAN GAKKAISHI
سال: 1969
ISSN: 1349-998X,0021-5392
DOI: 10.2331/suisan.35.336