Deep-Water Japanese Blunthorn Lobster Palinustus waguensis Kubo, 1963: First Estimates of Life History Parameters From the Southwest Coast of India
Palinustus waguensis Kubo, 1963, is the deep-sea Japanese blunthorn lobster belonging to the Family Palinuridae. It is a species that has been rarely reported, living in rocky habitats on deep-reef slopes at a depth of 100–250 m. An estimated catch of 100 kg of P. waguensis consisting of 113 males,...
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Asian Fisheries Society
2021-12-01
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| Series: | Asian Fisheries Science |
| Online Access: | https://www.asianfisheriessociety.org/publication/downloadfile.php?id=1377&file=Y0dSbUx6QXdPVGsyTXpRd01ERTJOREE0T0RJeE16RXVjR1Jt |
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| author | REKHA DEVI CHAKRABORTY G. MAHESWARUDU K.A. ANEESA L. SREESANTH N. RAGESH |
| author_facet | REKHA DEVI CHAKRABORTY G. MAHESWARUDU K.A. ANEESA L. SREESANTH N. RAGESH |
| author_sort | REKHA DEVI CHAKRABORTY |
| collection | DOAJ |
| description | Palinustus waguensis Kubo, 1963, is the deep-sea Japanese blunthorn lobster belonging to the Family Palinuridae. It is a species that has been rarely reported, living in rocky habitats on deep-reef slopes at a depth of 100–250 m. An estimated catch of 100 kg of P. waguensis consisting of 113 males, 54 females, and 23 berried lobsters were collected during the first fortnight of January 2019 from the multi-day shrimp trawls operating off Sakthikulangara, Kerala, India. The mean total length was recorded as 112.3 mm in males, 102.6 mm in females. The parameters of the length-weight relationship were estimated as, a = 0.041, b = 2.84 for males and a = 0.05, b = 2.86 for females, which were not significantly different (P > 0.05, r2 > 0.90) between the males and females. The relative condition factor (K) in the males and females of P. waguensis ranged from 2.07–4.96 and 1.87–3.86, respectively, attributing to the better feeding efficiency in males. Food and feeding analysis revealed the dietary content as fish (53 %), crab (23.5 %), shrimp (7.8 %), digested matter (11.6 %), and foraminifera (4 %). Feeding intensity analysis about the fullness of the stomach showed the specimens bearing full stomachs (11.3 %), three-fourth full (9.9 %). Length at 50 % maturity (Lm50) was 96.9 mm. Gonado-somatic index (GSI) ranged from 3.39 to 8.13. The present study forms the first report on the biology of the deep-water Japanese blunthorn lobster, P. waguensis from India. |
| first_indexed | 2024-12-19T17:13:17Z |
| format | Article |
| id | doaj.art-91be691906fb4a1a9f19ad0dc264ff6e |
| institution | Directory Open Access Journal |
| issn | 0116-6514 2073-3720 |
| language | English |
| last_indexed | 2024-12-19T17:13:17Z |
| publishDate | 2021-12-01 |
| publisher | Asian Fisheries Society |
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| series | Asian Fisheries Science |
| spelling | doaj.art-91be691906fb4a1a9f19ad0dc264ff6e2022-12-21T20:12:58ZengAsian Fisheries SocietyAsian Fisheries Science0116-65142073-37202021-12-0134410.33997/j.afs.2021.34.4.005Deep-Water Japanese Blunthorn Lobster Palinustus waguensis Kubo, 1963: First Estimates of Life History Parameters From the Southwest Coast of IndiaREKHA DEVI CHAKRABORTYG. MAHESWARUDUK.A. ANEESAL. SREESANTHN. RAGESHPalinustus waguensis Kubo, 1963, is the deep-sea Japanese blunthorn lobster belonging to the Family Palinuridae. It is a species that has been rarely reported, living in rocky habitats on deep-reef slopes at a depth of 100–250 m. An estimated catch of 100 kg of P. waguensis consisting of 113 males, 54 females, and 23 berried lobsters were collected during the first fortnight of January 2019 from the multi-day shrimp trawls operating off Sakthikulangara, Kerala, India. The mean total length was recorded as 112.3 mm in males, 102.6 mm in females. The parameters of the length-weight relationship were estimated as, a = 0.041, b = 2.84 for males and a = 0.05, b = 2.86 for females, which were not significantly different (P > 0.05, r2 > 0.90) between the males and females. The relative condition factor (K) in the males and females of P. waguensis ranged from 2.07–4.96 and 1.87–3.86, respectively, attributing to the better feeding efficiency in males. Food and feeding analysis revealed the dietary content as fish (53 %), crab (23.5 %), shrimp (7.8 %), digested matter (11.6 %), and foraminifera (4 %). Feeding intensity analysis about the fullness of the stomach showed the specimens bearing full stomachs (11.3 %), three-fourth full (9.9 %). Length at 50 % maturity (Lm50) was 96.9 mm. Gonado-somatic index (GSI) ranged from 3.39 to 8.13. The present study forms the first report on the biology of the deep-water Japanese blunthorn lobster, P. waguensis from India.https://www.asianfisheriessociety.org/publication/downloadfile.php?id=1377&file=Y0dSbUx6QXdPVGsyTXpRd01ERTJOREE0T0RJeE16RXVjR1Jt |
| spellingShingle | REKHA DEVI CHAKRABORTY G. MAHESWARUDU K.A. ANEESA L. SREESANTH N. RAGESH Deep-Water Japanese Blunthorn Lobster Palinustus waguensis Kubo, 1963: First Estimates of Life History Parameters From the Southwest Coast of India Asian Fisheries Science |
| title | Deep-Water Japanese Blunthorn Lobster Palinustus waguensis Kubo, 1963: First Estimates of Life History Parameters From the Southwest Coast of India |
| title_full | Deep-Water Japanese Blunthorn Lobster Palinustus waguensis Kubo, 1963: First Estimates of Life History Parameters From the Southwest Coast of India |
| title_fullStr | Deep-Water Japanese Blunthorn Lobster Palinustus waguensis Kubo, 1963: First Estimates of Life History Parameters From the Southwest Coast of India |
| title_full_unstemmed | Deep-Water Japanese Blunthorn Lobster Palinustus waguensis Kubo, 1963: First Estimates of Life History Parameters From the Southwest Coast of India |
| title_short | Deep-Water Japanese Blunthorn Lobster Palinustus waguensis Kubo, 1963: First Estimates of Life History Parameters From the Southwest Coast of India |
| title_sort | deep water japanese blunthorn lobster palinustus waguensis kubo 1963 first estimates of life history parameters from the southwest coast of india |
| url | https://www.asianfisheriessociety.org/publication/downloadfile.php?id=1377&file=Y0dSbUx6QXdPVGsyTXpRd01ERTJOREE0T0RJeE16RXVjR1Jt |
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