Seasonality of Reproduction and Embryonic Growth of Spiny Dogfish (Squalus acanthias L., 1758) in the Eastern Black Sea
The seasonality of reproduction and embryonic development of spiny dogfish (Squalus acanthias) sampled from the Eastern Black Sea were studied. The gestation period of spiny dogfish, starting in August, September and October, takes around 23-24 months. Fertilized females were caught at a depth of 30...
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fttubitakaj:oai:journals.tubitak.gov.tr:zoology-2359 2023-05-15T18:51:05+02:00 Seasonality of Reproduction and Embryonic Growth of Spiny Dogfish (Squalus acanthias L., 1758) in the Eastern Black Sea DEMİRHAN, SEFA AYHAN SEYHAN, KADİR 2006-01-01T08:00:00Z application/pdf https://journals.tubitak.gov.tr/zoology/vol30/iss4/13 https://journals.tubitak.gov.tr/cgi/viewcontent.cgi?article=2359&context=zoology unknown TÜBİTAK Academic Journals https://journals.tubitak.gov.tr/zoology/vol30/iss4/13 https://journals.tubitak.gov.tr/cgi/viewcontent.cgi?article=2359&context=zoology Turkish Journal of Zoology Reproduction embryo Squalus acanthias Black Sea Zoology text 2006 fttubitakaj 2022-10-19T17:45:10Z The seasonality of reproduction and embryonic development of spiny dogfish (Squalus acanthias) sampled from the Eastern Black Sea were studied. The gestation period of spiny dogfish, starting in August, September and October, takes around 23-24 months. Fertilized females were caught at a depth of 30-45 m in July and August. Females with full-term pups and empty uteri were found at 50-60 m depth, where the temperature was 10 °C. Lengths of pups at birth were around 28-29 cm, whereas their weights ranged from 68 to 78 g. The models of embryonic growth and development of ova were described as TL_e = 0.8124 – 0.334 x mo + 0.1289 x mo^2 - 0.03 x mo^3 (r = 0.92) and D_o = 0.7364 – 0.1503 x mo + 0.0221 x mo^2 - 0.004 x mo^3 (r = 0.94), respectively. Text spiny dogfish Squalus acanthias TÜBİTAK Academic Journals |
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Reproduction embryo Squalus acanthias Black Sea Zoology |
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Reproduction embryo Squalus acanthias Black Sea Zoology DEMİRHAN, SEFA AYHAN SEYHAN, KADİR Seasonality of Reproduction and Embryonic Growth of Spiny Dogfish (Squalus acanthias L., 1758) in the Eastern Black Sea |
topic_facet |
Reproduction embryo Squalus acanthias Black Sea Zoology |
description |
The seasonality of reproduction and embryonic development of spiny dogfish (Squalus acanthias) sampled from the Eastern Black Sea were studied. The gestation period of spiny dogfish, starting in August, September and October, takes around 23-24 months. Fertilized females were caught at a depth of 30-45 m in July and August. Females with full-term pups and empty uteri were found at 50-60 m depth, where the temperature was 10 °C. Lengths of pups at birth were around 28-29 cm, whereas their weights ranged from 68 to 78 g. The models of embryonic growth and development of ova were described as TL_e = 0.8124 – 0.334 x mo + 0.1289 x mo^2 - 0.03 x mo^3 (r = 0.92) and D_o = 0.7364 – 0.1503 x mo + 0.0221 x mo^2 - 0.004 x mo^3 (r = 0.94), respectively. |
format |
Text |
author |
DEMİRHAN, SEFA AYHAN SEYHAN, KADİR |
author_facet |
DEMİRHAN, SEFA AYHAN SEYHAN, KADİR |
author_sort |
DEMİRHAN, SEFA AYHAN |
title |
Seasonality of Reproduction and Embryonic Growth of Spiny Dogfish (Squalus acanthias L., 1758) in the Eastern Black Sea |
title_short |
Seasonality of Reproduction and Embryonic Growth of Spiny Dogfish (Squalus acanthias L., 1758) in the Eastern Black Sea |
title_full |
Seasonality of Reproduction and Embryonic Growth of Spiny Dogfish (Squalus acanthias L., 1758) in the Eastern Black Sea |
title_fullStr |
Seasonality of Reproduction and Embryonic Growth of Spiny Dogfish (Squalus acanthias L., 1758) in the Eastern Black Sea |
title_full_unstemmed |
Seasonality of Reproduction and Embryonic Growth of Spiny Dogfish (Squalus acanthias L., 1758) in the Eastern Black Sea |
title_sort |
seasonality of reproduction and embryonic growth of spiny dogfish (squalus acanthias l., 1758) in the eastern black sea |
publisher |
TÜBİTAK Academic Journals |
publishDate |
2006 |
url |
https://journals.tubitak.gov.tr/zoology/vol30/iss4/13 https://journals.tubitak.gov.tr/cgi/viewcontent.cgi?article=2359&context=zoology |
genre |
spiny dogfish Squalus acanthias |
genre_facet |
spiny dogfish Squalus acanthias |
op_source |
Turkish Journal of Zoology |
op_relation |
https://journals.tubitak.gov.tr/zoology/vol30/iss4/13 https://journals.tubitak.gov.tr/cgi/viewcontent.cgi?article=2359&context=zoology |
_version_ |
1766244883799998464 |