Using length data to derive biological reference points for kiddi shrimp Parapenaeopsis stylifera (Milne Edwards, 1837) from the south-eastern Arabian Sea, India

Pillai, S Lakshmi and Maheswarudu, G and Baby, P K and Radhakrishnan, M and Ragesh, N and Sreesanth, L (2021) Using length data to derive biological reference points for kiddi shrimp Parapenaeopsis stylifera (Milne Edwards, 1837) from the south-eastern Arabian Sea, India. Aquatic Living Resources, 34 (8). pp. 1-8.

[img] Text
Aquatic Living Resources_2021_S Lakshmi Pilai_P.stylifera.pdf
Restricted to Registered users only

Download (1MB) | Request a copy | Please mail the copy request to cmfrilibrary@gmail.com
Official URL: https://www.alr-journal.org/articles/alr/abs/2021/...
Related URLs:

    Abstract

    Parapenaeopsis stylifera, a major commercial penaeid shrimp fishery resource in the Indian Ocean, has lacked adequate information on life history parameters for nearly two decades. In this study, growth and mortality parameters of P. stylifera from the southwest coast of India were estimated using length data and used to derive biological reference points for the species. The asymptotic length for females was L∞ = 131 mm; k = 1.1 y−1 and for males L∞ = 117 mm; k = 1.25 y−1. Mortality parameter estimates were Z = 4.42, M = 1.24, F = 3.18 y−1 and exploitation rate E = 0.72 for females; Z = 5.76, M = 1.39, F = 4.37 y−1 and E = 0.76 for males. Thomson and Bell yield biomass, Beverton and Holt yield per recruit, and relative yield per recruit models were applied to predict the stock status and length cohort analysis for estimating the stock size. The Beverton and Holt analysis gave Emax = 0.69 in females and 0.75 for males, which is below the Ecurrent values obtained for the sexes. The Thomson and Bell analysis indicated that if Fcurrent at which the yield is 121 460 t in females and in males 128 064 t is further increased, rise in yield will be modest. B/B0 and SB/SB0 at Fcurrent were 24% and 18% for females and 21% and 16% for males, respectively. Target reference point F0.1 and F0.5 at different levels of age at capture tc (0.5, 0.6, 0.7 and 0.8 yrs) was estimated by Beverton and Holt yield per recruit model. The outcome from these models forms integral inputs for multispecies/multigear tropical fisheries management. Parapenaeopsis stylifera is one of the inshore penaeid shrimp identified by the Marine Stewardship Council for certification from the region and, moreover, biological reference points are a prerequisite to assessment and management of tropical multispecies fisheries for ecosystem-based fisheries management.

    Item Type: Article
    Uncontrolled Keywords: Arabian Sea;growth; Parapenaeopsis stylifera; reference points; size at first maturity; shrimp; size frequency
    Subjects: Crustacean Fisheries
    Crustacean Fisheries > Prawn and Prawn fisheries
    Divisions: CMFRI-Kochi > Marine Capture > Crustacean Fisheries
    Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Crustacean Fisheries
    CMFRI-Kochi > Marine Capture > Crustacean Fisheries
    Subject Area > CMFRI-Kochi > Marine Capture > Crustacean Fisheries
    Depositing User: Arun Surendran
    Date Deposited: 19 Apr 2021 08:22
    Last Modified: 19 Apr 2021 08:22
    URI: http://eprints.cmfri.org.in/id/eprint/15115

    Actions (login required)

    View Item View Item