| Title: | Age, Growth and Mortality of Surf Clam Mactra stultorum in the Gulf of Gabes, Tunisia |
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| Authors: | ID Derbali, Abdelkarim (Author)
ID Ben Mohamed, Nour (Author)
ID Haouas-Gharsallah, Ines (Author) |
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| Files: |  PDF - Presentation file, download (2,02 MB)
MD5: 20C5E3C3FD6A0B3D00888CEE674ECB54
 URL - Source URL, visit https://zdjp.si/annales-series-historia-naturalis-33-2023-1/
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  IRRIS - Institute IRRIS for Research, Development and Strategies of Society, Culture and Environment
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| Abstract: | The population dynamics of surf clam Mactra stultorum from the Gulf of Gabes was investigated monthly for the first time during a one-year period (2017), including population age, growth, and mortality rate. The allometric relationships between body sizes and length were determined; the shell length/total weight indicated a negative allometric growth relationship that is expressed as TW = 0.002 SL2.314. The length frequency data were analyzed for estimation of population parameters. The asymptotic length (L∞) was found to be 46.80 mm, the growth co-efficient (K) 0.71 yr-1. The longevity (Tmax) and the growth performance indices (φ’) were 5.42 yr-1 and 3.19, respectively. Total mortality (Z) and natural mortality (M) were estimated by length-converted catch curve at 0.63 yr-1. The findings of the current study suggest that the most intensive growth occurred during the first two years. The data presented herein are essential for an appropriate fisheries management and conservation of surf clams. |
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| Keywords: | Mactra stultorum, population dynamic, growth, mortality rate, age, south Tunisia |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Publication date: | 01.01.2023 |
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| Year of publishing: | 2023 |
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| Number of pages: | 119-126 |
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| Numbering: | 33, 1 |
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| PID: | 20.500.12556/DiRROS-30999  |
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| UDC: | 5 |
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| DOI: | 10.19233/ASHN.2023.16 |
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| Copyright: | Imetniki avtorskih pravic na prispevkih so avtorji. CC BY-NC 4.0 |
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| Publication date in DiRROS: | 09.07.2026 |
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| Views: | 31 |
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| Downloads: | 26 |
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| Metadata: |    |
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