STOCK ASSESSMENT OF THE COR VENUS (PAPHIA COR SOWERBY, 1853) IN THE COASTAL AREA OF GASSIR, BUSHEHR, PERSIAN GULF

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NIAMAIMANDI NASSIR; YARAHMADI ARDESHIR; TANGESTANI ABDOLHASSAN

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Journal: JOURNAL OF MARINE BIOLOGY Year:2013 | Volume:5 | Issue:17 Page(s): 15-24

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Title

STOCK ASSESSMENT OF THE COR VENUS (PAPHIA COR SOWERBY, 1853) IN THE COASTAL AREA OF GASSIR, BUSHEHR, PERSIAN GULF

Author(s)

NIAMAIMANDI NASSIR | YARAHMADI ARDESHIR | TANGESTANI ABDOLHASSAN | Issue Writer Certificate

Keywords

STOCK ASSESSMENTQ2

COR VENUSQ2

PAPHIA CORQ2

BUSHEHRQ2

PERSIAN GULFQ2

Abstract

Growth parameters, natural mortality and biomass of COR VENUS, PAPHIA COR were studied in Gassir, BUSHEHR shoreline areas (from 50o 40’ E and 29o 14’ N) during September 2008-2009. Samples were obtained at bimonthly from Gassir area in a year at low tide. Some transects were selected at random direction and at the zigzag pattern, so that cover all of the shell beds. In each transects one or two sampling quadrat (0.25 m2) was placed random. The length frequency of samples was measured bimonthly, from dextral to sinistral with vernier calipers to the nearest 0.1 millimeter. The length frequency was used to estimate growth and natural mortality parameters. Data analysis was conducted with the most recent version of LFDA statistical software. Stock abundance was estimated in the cold, temperate and hot months of the year. Salinity and water temperature were measured and averaged in the sampling months. Surface sediment samples (0-20 cm depth) were collected from sampling area inhabited by the P. cor. The Von Bertalanffy growth parameters for PAPHIA COR were estimated as K=0.8Year-1, L¥=55 mm and t0=-0.45. Estimated natural mortality rate for PAPHIA COR was M=0.57 and the maximum ages (Tmax) were calculated during 50 months. The mean of abundance of this species was 8.8±2.2 shells per quadrat and with a maximum in February (Bahman) and minimum in November (Abban). The mean of salinity and water temperature was 41.3 psu and 25.2oC, respectively. More than 88 percent of the bottom sediment in the studied area was included of silt (54.60%) and sands (32.74%). Present results show, two factors, temperature and sediment types affected on the growth and existing of P. cor in the studied area.

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APA: Copy

NIAMAIMANDI, NASSIR, YARAHMADI, ARDESHIR, & TANGESTANI, ABDOLHASSAN. (2013). STOCK ASSESSMENT OF THE COR VENUS (PAPHIA COR SOWERBY, 1853) IN THE COASTAL AREA OF GASSIR, BUSHEHR, PERSIAN GULF. JOURNAL OF MARINE BIOLOGY, 5(17), 15-24. SID. https://sid.ir/paper/174653/en

Vancouver: Copy

NIAMAIMANDI NASSIR, YARAHMADI ARDESHIR, TANGESTANI ABDOLHASSAN. STOCK ASSESSMENT OF THE COR VENUS (PAPHIA COR SOWERBY, 1853) IN THE COASTAL AREA OF GASSIR, BUSHEHR, PERSIAN GULF. JOURNAL OF MARINE BIOLOGY[Internet]. 2013;5(17):15-24. Available from: https://sid.ir/paper/174653/en

IEEE: Copy

NASSIR NIAMAIMANDI, ARDESHIR YARAHMADI, and ABDOLHASSAN TANGESTANI, “STOCK ASSESSMENT OF THE COR VENUS (PAPHIA COR SOWERBY, 1853) IN THE COASTAL AREA OF GASSIR, BUSHEHR, PERSIAN GULF,” JOURNAL OF MARINE BIOLOGY, vol. 5, no. 17, pp. 15–24, 2013, [Online]. Available: https://sid.ir/paper/174653/en

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