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AuthorAl-Barwani S.M.
AuthorAmin S.M.N.
AuthorArshad A.
AuthorGovender A.
AuthorAl-Habsi H.
AuthorAl-Riyami K.
AuthorAl Khayat J.A.
Available date2020-03-03T06:19:35Z
Publication Date2018
Publication NameJournal of Environmental Biology
ResourceScopus
ISSN2548704
URIhttp://dx.doi.org/10.22438/jeb/39/5(SI)/20
URIhttp://hdl.handle.net/10576/13190
AbstractAim: Population parameters such as growth, recruitment pattern, mortality, exploitation rate and the length-weight relationship were investigated for the brown mussel, Perna pernain Omani waters. Methodology: Monthly shell-length frequency of P. perna were collected from three different locations, namely, Mirbat, Ra's Al-Had and Ra's Madrakah for one year from December 2010 to November 2011. The data were analysed using the FiSAT (FAO-ICLARM Stock Assessment Tools) software to estimate population parameters. Results: The length of individuals ranged from 10.34 to 104.03 mm and the weight from 0.12 to 52.45 g. The estimated relative growth coefficient (b) was 3.079(?0.019), and the 95% confidence levelof branged from 3.045 to 3.116. The annual recruitment pattern of P. perna showed a continuous trend throughout the year. The peak recruitment at Mirbat (19%) and Ra'sAl Had (21%) was observed in June, whereas at Ra's Madrakah (24%)it was observedinJuly. The estimated total mortality values ofP. pernawere 2.84 yr-1, 3.28 yr-1 and 2.48 yr-1 at Mirbat, Ra's Al Had and Ra's Madrakah, respectively, while the natural mortality rates were 1.25 yr-1 at Mirbat, 1.29 yr-1 at Ra'sAl Had, and 1.23 yr-1 at Ra's Madrakah. The fishing mortality rates were 1.59 yr-1 at Mirbat, 1.99 yr-1 at Ra'sAlHad and 1.25 yr-1 at Ra's Madrakah. The Perna perna attained an approximate length of 53.5 mm at the end of one year. Exploitation rate (E) was 0.56, 0.60 and 0.50 at Mirbat, Ra'sAlHad and Ra's Madrakah, respectively. Interpretation : The results revealed that the stock of P. perna at Mirbat and Ra's Al Had areas was over exploited. However, currentlyatRa's Madrakah the stock ofP. pernais currently optimally exploited.
SponsorThe authors would like to express their sincere gratitude to the Agriculture and Fisheries Development Fund for funding thisstudy.WealsothanksDr.HusseinAl-MasrooriandDr.Ahmed Al-Maskri for this help in running this project.
Languageen
PublisherTriveni Enterprises
SubjectExploitation rate
Growth performance index
Mortality
Perna perna
Stock status
TitleAge, growth, population dynamics and stock status of Perna perna in Omani waters
TypeArticle
Pagination865 - 870
Issue Number5
Volume Number39
dc.accessType Abstract Only


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