Length-weight relationships and condition factor of Asian sheat catfish, Wallago attu (Bloch & Schneider, 1801) inhabiting different rivers of India
Wallago attu is a freshwater catfish and has been classified as ‘Vulnerable’ in Red Data List of threatened species by IUCN. Length-weight relationship (LWR) of wild populations helps in understanding the pattern of fish growth that could be useful in fisheries management. The current work was carri...
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ftdoajarticles:oai:doaj.org/article:1ebad4eec4334b7fa29f69bc89c3d612 2023-05-15T15:33:23+02:00 Length-weight relationships and condition factor of Asian sheat catfish, Wallago attu (Bloch & Schneider, 1801) inhabiting different rivers of India Graish Kumar Ankur Kashyap Mohammad Serajuddin 2023-02-01T00:00:00Z https://doi.org/10.17017/j.fish.450 https://doaj.org/article/1ebad4eec4334b7fa29f69bc89c3d612 EN eng BdFISH https://journal.bdfish.org/index.php/fisheries/article/view/450 https://doaj.org/toc/2311-729X https://doaj.org/toc/2311-3111 doi:10.17017/j.fish.450 2311-729X 2311-3111 https://doaj.org/article/1ebad4eec4334b7fa29f69bc89c3d612 Journal of Fisheries, Vol 11, Iss 1 (2023) condition factor Ganga growth isometric length-weight relationship Wallago attu Aquaculture. Fisheries. Angling SH1-691 article 2023 ftdoajarticles https://doi.org/10.17017/j.fish.450 2023-02-26T01:27:39Z Wallago attu is a freshwater catfish and has been classified as ‘Vulnerable’ in Red Data List of threatened species by IUCN. Length-weight relationship (LWR) of wild populations helps in understanding the pattern of fish growth that could be useful in fisheries management. The current work was carried out to the LWR and condition factor (K) of W. attu collected from five rivers of India (Ganga, Yamuna, Hooghly, Gomti and Pampa). A total of 261 fish specimens were sampled for LWR study. The value of b for the population of river Gomti (t=1.0312), Ganga (t=1.4109) and Yamuna (t=0.3365) was not significantly different from isometric growth (b=3) in Pauly’s t-test whereas the populations of Hooghly (t=10.3609) and river Pampa (t=3.4593) were significantly different (p<0.001) indicating positive allometric growth in the fish of rivers Hooghly and Pampa. Linear plot of log a over b resulted in straight line showed strong relationship. Low K value (K<1) indicated the poor health conditions of the fish in all five rivers. This study would provide information regarding the status of LWRs of W. attu in five rivers of India that could serve as a baseline data for future sustainable management and conservation of this vulnerable fish. Article in Journal/Newspaper Attu Directory of Open Access Journals: DOAJ Articles Pampa ENVELOPE(-57.216,-57.216,-63.883,-63.883) |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
condition factor Ganga growth isometric length-weight relationship Wallago attu Aquaculture. Fisheries. Angling SH1-691 |
spellingShingle |
condition factor Ganga growth isometric length-weight relationship Wallago attu Aquaculture. Fisheries. Angling SH1-691 Graish Kumar Ankur Kashyap Mohammad Serajuddin Length-weight relationships and condition factor of Asian sheat catfish, Wallago attu (Bloch & Schneider, 1801) inhabiting different rivers of India |
topic_facet |
condition factor Ganga growth isometric length-weight relationship Wallago attu Aquaculture. Fisheries. Angling SH1-691 |
description |
Wallago attu is a freshwater catfish and has been classified as ‘Vulnerable’ in Red Data List of threatened species by IUCN. Length-weight relationship (LWR) of wild populations helps in understanding the pattern of fish growth that could be useful in fisheries management. The current work was carried out to the LWR and condition factor (K) of W. attu collected from five rivers of India (Ganga, Yamuna, Hooghly, Gomti and Pampa). A total of 261 fish specimens were sampled for LWR study. The value of b for the population of river Gomti (t=1.0312), Ganga (t=1.4109) and Yamuna (t=0.3365) was not significantly different from isometric growth (b=3) in Pauly’s t-test whereas the populations of Hooghly (t=10.3609) and river Pampa (t=3.4593) were significantly different (p<0.001) indicating positive allometric growth in the fish of rivers Hooghly and Pampa. Linear plot of log a over b resulted in straight line showed strong relationship. Low K value (K<1) indicated the poor health conditions of the fish in all five rivers. This study would provide information regarding the status of LWRs of W. attu in five rivers of India that could serve as a baseline data for future sustainable management and conservation of this vulnerable fish. |
format |
Article in Journal/Newspaper |
author |
Graish Kumar Ankur Kashyap Mohammad Serajuddin |
author_facet |
Graish Kumar Ankur Kashyap Mohammad Serajuddin |
author_sort |
Graish Kumar |
title |
Length-weight relationships and condition factor of Asian sheat catfish, Wallago attu (Bloch & Schneider, 1801) inhabiting different rivers of India |
title_short |
Length-weight relationships and condition factor of Asian sheat catfish, Wallago attu (Bloch & Schneider, 1801) inhabiting different rivers of India |
title_full |
Length-weight relationships and condition factor of Asian sheat catfish, Wallago attu (Bloch & Schneider, 1801) inhabiting different rivers of India |
title_fullStr |
Length-weight relationships and condition factor of Asian sheat catfish, Wallago attu (Bloch & Schneider, 1801) inhabiting different rivers of India |
title_full_unstemmed |
Length-weight relationships and condition factor of Asian sheat catfish, Wallago attu (Bloch & Schneider, 1801) inhabiting different rivers of India |
title_sort |
length-weight relationships and condition factor of asian sheat catfish, wallago attu (bloch & schneider, 1801) inhabiting different rivers of india |
publisher |
BdFISH |
publishDate |
2023 |
url |
https://doi.org/10.17017/j.fish.450 https://doaj.org/article/1ebad4eec4334b7fa29f69bc89c3d612 |
long_lat |
ENVELOPE(-57.216,-57.216,-63.883,-63.883) |
geographic |
Pampa |
geographic_facet |
Pampa |
genre |
Attu |
genre_facet |
Attu |
op_source |
Journal of Fisheries, Vol 11, Iss 1 (2023) |
op_relation |
https://journal.bdfish.org/index.php/fisheries/article/view/450 https://doaj.org/toc/2311-729X https://doaj.org/toc/2311-3111 doi:10.17017/j.fish.450 2311-729X 2311-3111 https://doaj.org/article/1ebad4eec4334b7fa29f69bc89c3d612 |
op_doi |
https://doi.org/10.17017/j.fish.450 |
_version_ |
1766363903808241664 |