Biometric analysis of the flat needlefish Ablennes hians (Valenciennes, 1846) (Pisces: Belonidae) in the south-eastern Arabian Sea

Roul, Subal Kumar and Kumar, Rajan and Jaiswar, A K and Retheesh, T B and Akhil, A R and Prakasan, D and Ganga, U and Abdussamad, E M and Shenoy, Latha and Rohit, Prathibha (2019) Biometric analysis of the flat needlefish Ablennes hians (Valenciennes, 1846) (Pisces: Belonidae) in the south-eastern Arabian Sea. Indian Journal of Geo-Marine Sciences, 48 (4). pp. 457-463.

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Official URL: http://nopr.niscair.res.in/handle/123456789/47203
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    Abstract

    The study was aimed to investigate the relationship between various morphometric measurements and meristic counts and to establish the length-weight relationships (LWRs) and length-length relationships (LLRs) of flat needlefish Ablennes hians (Valenciennes, 1846) that were collected from longline fisheries in the south-eastern Arabian Sea between October 2015 and August 2017. Twenty-two morphometric measurements and four meristic counts of 173 specimens were examined for biometric analysis, and 350 specimens (45-122 cm TL, 90-2585 g TW) were analyzed for studying LWRs. Morphometric variables showed a significant correlation between the variables with the highest observed correlation between SL, FL and TL (r > 0.99). The descriptive statistics for all the meristic counts were found within the range provided by the earlier authors. A differential relative growth was observed across morphometric characters. Strong positive allometry was recorded for pectoral fin length, the height of dorsal and anal fin and pre-ventral length, whereas pronounced negative allometry was evident in case of morphometric variables from the head region. The LWRs showed similar growth pattern for male (b = 3.447) and female (b = 3.299) individuals. Therefore, the LWR was expressed for pooled data as W = 0.000321L3.312 (R2 = 0.929, p < 0.001).

    Item Type: Article
    Uncontrolled Keywords: Length-length relationships;Length-weight relationships;Morphometric;Meristic;South-west coast
    Subjects: Pelagic Fisheries
    Pelagic Fisheries > Pelagic Fishes
    Divisions: CMFRI-Kochi > Marine Capture > Pelagic Fisheries
    Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Pelagic Fisheries
    CMFRI-Kochi > Marine Capture > Pelagic Fisheries
    Subject Area > CMFRI-Kochi > Marine Capture > Pelagic Fisheries
    Depositing User: Arun Surendran
    Date Deposited: 14 May 2019 06:47
    Last Modified: 28 Dec 2019 10:38
    URI: http://eprints.cmfri.org.in/id/eprint/13650

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