Biological Studies on Indian Squid, Uroteuthis duvauceli (D' Orbigny) along the Ratnagiri Coast of India
The Indian squid Uroteuthis duvauceli is the one of the important commercial fishery resources of India and form significant component of cephalopod landings along the Ratnagiri coast. The present study investigated the feeding and reproductive biology of U. duvauceli landed along the Ratnagiri coas...
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fticar:oai:ojs3.epubs.icar.org.in:article/138725 2023-09-26T15:17:34+02:00 Biological Studies on Indian Squid, Uroteuthis duvauceli (D' Orbigny) along the Ratnagiri Coast of India Pawar N.S. Bhosale B.P. Metar S.Y. Nirmale V.H. Chogale N.D. Pagarkar, A.U. 2019-06-15 application/pdf https://epubs.icar.org.in/index.php/JIFA/article/view/138725 eng eng Indian Fisheries Association https://epubs.icar.org.in/index.php/JIFA/article/view/138725/50703 https://epubs.icar.org.in/index.php/JIFA/article/view/138725 Copyright (c) 2019 Indian Fisheries Association Journal of Indian Fisheries Association; Vol. 46 No. 1 (2019): Journal of Indian Fisheries Association 0972-3854 Uroteuthis duvauceli feeding reproduction fecundity sex ratio Ratnagiri info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2019 fticar 2023-08-26T18:15:44Z The Indian squid Uroteuthis duvauceli is the one of the important commercial fishery resources of India and form significant component of cephalopod landings along the Ratnagiri coast. The present study investigated the feeding and reproductive biology of U. duvauceli landed along the Ratnagiri coast. The study found U. duvauceli to be an carnivore with fishes such as pony fish, sole fish, white fish, sardine, ladyfish and dhoma , juveniles of crabs and prawn forming the main food items. Cannabalism was also noted. The piscivorous tendency was more pronounced in adults. Digested and semi digested matter also occurred in considerable quantity. The present study shows occurrence of more ripe females during November and January indicating possible spawning peak during the post monsoon period. The size at first maturity was found to be 86 mm DML for female. The average sex ratio of males and females was found to be 1: 0.6547 for the entire study period. The fecundity of U. duvauceli was found to vary from 2115 to 13238 eggs with an average of 5442 eggs per female. Article in Journal/Newspaper DML Indian Agricultural Research Journals ( Indian Council of Agricultural Research) Indian |
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Indian Agricultural Research Journals ( Indian Council of Agricultural Research) |
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fticar |
language |
English |
topic |
Uroteuthis duvauceli feeding reproduction fecundity sex ratio Ratnagiri |
spellingShingle |
Uroteuthis duvauceli feeding reproduction fecundity sex ratio Ratnagiri Pawar N.S. Bhosale B.P. Metar S.Y. Nirmale V.H. Chogale N.D. Pagarkar, A.U. Biological Studies on Indian Squid, Uroteuthis duvauceli (D' Orbigny) along the Ratnagiri Coast of India |
topic_facet |
Uroteuthis duvauceli feeding reproduction fecundity sex ratio Ratnagiri |
description |
The Indian squid Uroteuthis duvauceli is the one of the important commercial fishery resources of India and form significant component of cephalopod landings along the Ratnagiri coast. The present study investigated the feeding and reproductive biology of U. duvauceli landed along the Ratnagiri coast. The study found U. duvauceli to be an carnivore with fishes such as pony fish, sole fish, white fish, sardine, ladyfish and dhoma , juveniles of crabs and prawn forming the main food items. Cannabalism was also noted. The piscivorous tendency was more pronounced in adults. Digested and semi digested matter also occurred in considerable quantity. The present study shows occurrence of more ripe females during November and January indicating possible spawning peak during the post monsoon period. The size at first maturity was found to be 86 mm DML for female. The average sex ratio of males and females was found to be 1: 0.6547 for the entire study period. The fecundity of U. duvauceli was found to vary from 2115 to 13238 eggs with an average of 5442 eggs per female. |
format |
Article in Journal/Newspaper |
author |
Pawar N.S. Bhosale B.P. Metar S.Y. Nirmale V.H. Chogale N.D. Pagarkar, A.U. |
author_facet |
Pawar N.S. Bhosale B.P. Metar S.Y. Nirmale V.H. Chogale N.D. Pagarkar, A.U. |
author_sort |
Pawar N.S. |
title |
Biological Studies on Indian Squid, Uroteuthis duvauceli (D' Orbigny) along the Ratnagiri Coast of India |
title_short |
Biological Studies on Indian Squid, Uroteuthis duvauceli (D' Orbigny) along the Ratnagiri Coast of India |
title_full |
Biological Studies on Indian Squid, Uroteuthis duvauceli (D' Orbigny) along the Ratnagiri Coast of India |
title_fullStr |
Biological Studies on Indian Squid, Uroteuthis duvauceli (D' Orbigny) along the Ratnagiri Coast of India |
title_full_unstemmed |
Biological Studies on Indian Squid, Uroteuthis duvauceli (D' Orbigny) along the Ratnagiri Coast of India |
title_sort |
biological studies on indian squid, uroteuthis duvauceli (d' orbigny) along the ratnagiri coast of india |
publisher |
Indian Fisheries Association |
publishDate |
2019 |
url |
https://epubs.icar.org.in/index.php/JIFA/article/view/138725 |
geographic |
Indian |
geographic_facet |
Indian |
genre |
DML |
genre_facet |
DML |
op_source |
Journal of Indian Fisheries Association; Vol. 46 No. 1 (2019): Journal of Indian Fisheries Association 0972-3854 |
op_relation |
https://epubs.icar.org.in/index.php/JIFA/article/view/138725/50703 https://epubs.icar.org.in/index.php/JIFA/article/view/138725 |
op_rights |
Copyright (c) 2019 Indian Fisheries Association |
_version_ |
1778139063964925952 |