Length-weight relationships of two conservation-concern mahseers (Teleostei: Cyprinidae: Tor) of the river Cauvery, Karnataka, India

Authors: Pinder, A., Raghavan, R., Bower, S. and Britton, J.R.

http://eprints.bournemouth.ac.uk/34337/

Journal: Journal of Threatened Taxa

Volume: 12

Issue: 10

Pages: 16257-16261

Publisher: Wildlife Information Liaison Development Society

ISSN: 0974-7893

DOI: 10.11609/jott.6201.12.10.16257-16261

Length-weight (LW) relationships are presented for two conservation-concern species of mahseer (Tor spp.) from southern India’s river Cauvery. Constructed from angler catch data, these are the first available LW relationships for the Critically Endangered Tor remadevii and the non-native and locally invasive Tor khudree. For T. remadevii, the value of b, the allometric parameter, was 2.94 (95% CI: 2.75–3.14) and was not significantly different from 3.0, indicating isometric growth (t = 0.61, P = 0.54). For T. khudree, b was greater at 3.18 (95% CI: 3.01–3.38), but with this also not significantly different from 3.0 (t = 1.91, P = 0.06). Outputs are discussed with reference to species conservation and recreational catch-and-release fisheries.

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Authors: Pinder, A.C., Raghavan, R., Bower, S.D. and Britton, J.R.

http://eprints.bournemouth.ac.uk/34337/

Journal: Journal of Threatened Taxa

Volume: 12

Issue: 10

Pages: 16257-16261

eISSN: 0974-7907

ISSN: 0974-7893

DOI: 10.11609/jott.6201.12.10.16257-16261

© Pinder et al. 2020. Length-weight (LW) relationships are presented for two conservation-concern species of mahseer (Tor spp.) from southern India's river Cauvery. Constructed from angler catch data, these are the first available LW relationships for the Critically Endangered Tor remadevii and the non-native and locally invasive Tor khudree. For T. remadevii, the value of b, the allometric parameter, was 2.94 (95% CI: 2.75-3.14) and was not significantly different from 3.0, indicating isometric growth (t = 0.61, P = 0.54). For T. khudree, b was greater at 3.18 (95% CI: 3.01-3.38), but with this also not significantly different from 3.0 (t = 1.91, P = 0.06). Outputs are discussed with reference to species conservation and recreational catch-and-release fisheries. Copyright:

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