Growth parameters and mortality of Sillago sihama, Forsskål, 1775 (Common silver-biddy) in the Hara Biospher Reserve, Iran

Hashemi, Seyed hassan; Safaie, Mohsen; Kamrani, Ehsan; Salarpouri, Ali

Volume 9, Issue 1 (Summer 2019) J. Aqua. Eco 2019, 9(1): 136-144 | Back to browse issues page

‎ 20.1001.1.23222751.1398.9.1.14.3

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Hashemi S H, Safaie M, Kamrani E, Salarpouri A. Growth parameters and mortality of Sillago sihama, Forsskål, 1775 (Common silver-biddy) in the Hara Biospher Reserve, Iran. J. Aqua. Eco 2019; 9 (1) :136-144
URL: http://jae.hormozgan.ac.ir/article-1-734-en.html

Growth parameters and mortality of Sillago sihama, Forsskål, 1775 (Common silver-biddy) in the Hara Biospher Reserve, Iran

Seyed hassan Hashemi

, Mohsen Safaie ^*

, Ehsan Kamrani

, Ali Salarpouri

Abstract: (2500 Views)

Population parameters of Silver sillago (Sillago sihama) were studied in Hara Biosphere Reserve in Hormozgan province in the south of Iran from September 2016 to August 2017. All specimens were sampled by boat trawl, beach seine, and trapping barriers. Growth parameters were determined using the monthly length-frequency data. The range of total length was between 5.2 to 22.4 cm, and the mean total length was calculated 13.5±0.10 cm for Common silver-biddy. Using length-frequency data analysis, the value of L∞ and K were calculated 30 cm and 0.43 yr^-1, respectively. The growth function ø' was calculated as 2.59. Based on growth parameters and monthly length-frequency analysis, four cohorts were distinguished for Common silver-biddy. The rate of natural mortality (M), total mortality (Z), and exploitation rate (E) were estimated at 1.03 yr^-1, 2.74 yr^-1, and 0.63, respectively. The length-weight relationship was determined as W= 0.0076 L ^2.975 (R²=0.9065), indicating algometric growth for Silver sillago. The results showed that the majority of studied fish were juvenile fish. This demonstrates the supporting role of creeks for Sillaginidae as a nursery ground.

Keywords: Biosphere Reserve, Mangrove, Persian Gulf, Population dynamics, Sillago sihama

Full-Text [PDF 547 kb] (506 Downloads)

Type of Study: Research | Subject: Special
Published: 2019/06/22