Length-weight relationships of five needlefish species from Kerala waters, south-west coast of India

Roul, Subal Kumar and Retheesh, T B and Ganga, U and Abdussamad, E M and Rohit, Prathibha and Jaiswar, A K (2017) Length-weight relationships of five needlefish species from Kerala waters, south-west coast of India. Journal of Applied Ichthyology. pp. 1-3.

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Abstract

Length-weight relationships (LWRs) were estimated for five needlefish species such as Ablennes hians (Valenciennes, 1846), Tylosurus crocodilus (Péron & Lesueur, 1821), Tylosurus acus melanotus (Bleeker, 1850), Strongylura leiura (Bleeker, 1850), and Strongylura strongylura (van Hasselt, 1823). Specimens were collected on weekly basis from Cochin Fisheries Harbour (Lat. 09056′327″N, Long. 76015′764″E), Munambam Fisheries Harbour (Lat. 10010′965″N, Long. 76010′258″E), Kalamukku (Lat. 09059′924″N, Long. 76014′564″E) and Chellanam (Lat. 09047′950″N, Long. 76016′551″E), between October 2015 to August 2017. Fish were captured by traditional long liner (hook no. IX-XIV) and ring seiner (mesh size 8–24 mm). The estimated allometric co-efficient b values ranged from 3.063 (Tylosurus acus melanotus) to 3.962 (Strongylura leiura) and r2 values ranged from 0.850 (Tylosurus acus melanotus) to 0.992 (Tylosurus crocodilus). All the LWRs were highly significant, with p < .001. In addition, the study provides the first estimate of LWR for Tylosurus acus melanotus and new estimate for other four species of needlefish.

Item Type:	Article
Uncontrolled Keywords:	Length-weight relationship; needlefish; Kerala waters, south-west coast of India
Subjects:	Fishery Biology Pelagic Fisheries
Divisions:	CMFRI-Kochi > Marine Capture > Pelagic Fisheries Division Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Pelagic Fisheries Division CMFRI-Kochi > Marine Capture > Pelagic Fisheries Division Subject Area > CMFRI-Kochi > Marine Capture > Pelagic Fisheries Division
Depositing User:	Arun Surendran
Date Deposited:	03 Nov 2017 05:20
Last Modified:	15 Mar 2023 06:46
URI:	http://eprints.cmfri.org.in/id/eprint/12319

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