Effect of density on larval development and female productivity ofTisbe holothuriae (Copepoda, Harpacticoida) under laboratory conditions
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چکیده
منابع مشابه
effect of oral presentation on development of l2 learners grammar
this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...
15 صفحه اول[Larval development of Hypsophrys nicaraguensis (Pisces: Cichlidae) under laboratory conditions].
The cichlid Hypsophrys nicaraguensis is a popular fish known as butterfly, and despite its widespread use as pets, little is known about its reproductive biology. In order to contribute to this knowledge, the study describes the relevant larval development characteristics, from adult and larval cultures in captivity. Every 12h, samples of larvae were collected and observed under the microscope ...
متن کاملThe larval development of Upogebia assisi Barnard, 1974 (Decapoda, Upogebiidae) reared under laboratory conditions from ovigerous femail to postlarvae
The ovigerous females of Upogebia (Upogebia assisi) were collected from Pacha (24o 50 54"N, 66o 43 E) on October 6 and 7, 1994 and 1995 respectively. They were kept for rearing under laboratory conditions at room temperature (25-32oC) in the filtered seawater with salanity of 35-36 parts per thousand (ppt) and pH 7.8-9. Development of larvae proceeds from first to three or four zoeal and p...
متن کاملThe larval development of Upogebia assisi Barnard, 1974 (Decapoda, Upogebiidae) reared under laboratory conditions from ovigerous femail to postlarvae
The ovigerous females of Upogebia (Upogebia assisi) were collected from Pacha (24o 50 54"N, 66o 43 E) on October 6 and 7, 1994 and 1995 respectively. They were kept for rearing under laboratory conditions at room temperature (25-32oC) in the filtered seawater with salanity of 35-36 parts per thousand (ppt) and pH 7.8-9. Development of larvae proceeds from first to three or four zoeal and p...
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ژورنال
عنوان ژورنال: Helgoländer Meeresuntersuchungen
سال: 1993
ISSN: 0174-3597,1438-3888
DOI: 10.1007/bf02430361