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Biological parameters of the revalidated cyprinid Osteobrama dayi, endemic to the Godavari River, India
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The length-weight relationship is of great importance in fishery assessments. In the present study, we estimated the length-weight relationship (LWR) of a recently re-validated endemic cyprinid, Osteobrama dayi, which is endemic to the Godavari River. The specimens were collected from their natural habitat between 2021 and 2023. The “b” value ranged from 3.29 to 3.50 between pre-monsoon and monsoon season, whereas the “a” value ranged between (-)2.25 and (-)2.53, respectively. This study provides the first report on LWR for O. dayi and records the maximum standard length (26.4 cm) and total weight (728 g), recorded for this species from the wild, along with the condition factor (K). The baseline information on LWR and K for O. dayi will be useful in further studies on the stock management of this endemic species.
Keywords: Conservation, Condition factor, Cyprinid, Endemic species, Length-weight relationship, Health status
Central Marine Fisheries Research Institute, Kochi
Title: Biological parameters of the revalidated cyprinid Osteobrama dayi, endemic to the Godavari River, India
Description:
The length-weight relationship is of great importance in fishery assessments.
In the present study, we estimated the length-weight relationship (LWR) of a recently re-validated endemic cyprinid, Osteobrama dayi, which is endemic to the Godavari River.
The specimens were collected from their natural habitat between 2021 and 2023.
The “b” value ranged from 3.
29 to 3.
50 between pre-monsoon and monsoon season, whereas the “a” value ranged between (-)2.
25 and (-)2.
53, respectively.
This study provides the first report on LWR for O.
dayi and records the maximum standard length (26.
4 cm) and total weight (728 g), recorded for this species from the wild, along with the condition factor (K).
The baseline information on LWR and K for O.
dayi will be useful in further studies on the stock management of this endemic species.
Keywords: Conservation, Condition factor, Cyprinid, Endemic species, Length-weight relationship, Health status .
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