Temporal changes in feeding and bio-indices of Polynemus paradiseus Linnaeus, 1758 occurring in Hooghly-Matlah estuary, West Bengal
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Title |
Temporal changes in feeding and bio-indices of Polynemus paradiseus Linnaeus, 1758 occurring in Hooghly-Matlah estuary, West Bengal
Not Available |
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Creator |
N. Borah
Sudhir Kumar Das Dibakar Bhakta |
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Subject |
Gastro-somatic index; Gonado-somatic index; Food and feeding habits; Hooghly-Matlah estuary; Polynemus paradiseus
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Description |
Not Available
Temporal changes in feeding and bio-indices of Polynemus paradiseus were studied at selected stretches of Hooghly- Matlah estuary for a period of eight months (December to July). It indicated that the fish mainly feeds on shrimps, fishes, and insects. The highest amount of shrimps (45.49%) was recorded in December and those of fishes (16.10%) during June and copepods and insects (7.31%) in July. The presence of a considerable amount of small fishes, insects and crustaceans in gut contents indicated carnivore-feeding habits of fish. Adult size of the species mainly feeds on shrimps and fishes whereas juveniles feed on shrimps, copepods, insects, and zoobenthos. Gastro-somatic index (GaSI) was maximum during March and April and minimum during June and December in fish. The monthly mean gonado-somatic index (GSI) values varied from 0.74 (December) to 1.32 (June) in males and 0.82 (December) to 5.44 (June) for female fish, respectively. WBUAFS |
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Date |
2021-09-02T10:44:50Z
2021-09-02T10:44:50Z 2020-01-01 |
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Type |
Review Paper
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Identifier |
Borah, N., Das, S.K. and Bhakta, D. 2020. Temporal changes in feeding and bio-indices of Polynemus paradiseus Linnaeus, 1758 occurring in Hooghly-Matlah estuary, West Bengal. Indian Journal of Geo Marine Sciences, 49(01): 118-123.
0379-5136 http://krishi.icar.gov.in/jspui/handle/123456789/61215 |
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Language |
English
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Relation |
Not Available;
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Publisher |
CSIR-NISCAIR
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