Growth and mortality of the European hake Merluccius merluccius (Linnaeus, 1758) from the North of Moroccan Atlantic coasts
Growth and mortality studies on fish are considered crucial to the comprehension of species biology and population dynamics. This work aims to study the growth and mortality of Merluccius merluccius (Linnaeus, 1758) from the North Atlantic coasts of Morocco. A total of 1001 European hakes was sample...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-09-01
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| Series: | Egyptian Journal of Aquatic Research |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1687428521001072 |
| _version_ | 1798033599521357824 |
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| author | Chaimae El Bouzidi Nourddine Abid Hesham Awadh Mohammed Bakkali Mounir Hassani Zerrouk |
| author_facet | Chaimae El Bouzidi Nourddine Abid Hesham Awadh Mohammed Bakkali Mounir Hassani Zerrouk |
| author_sort | Chaimae El Bouzidi |
| collection | DOAJ |
| description | Growth and mortality studies on fish are considered crucial to the comprehension of species biology and population dynamics. This work aims to study the growth and mortality of Merluccius merluccius (Linnaeus, 1758) from the North Atlantic coasts of Morocco. A total of 1001 European hakes was sampled from trawler’s fishery during the period from August 2017 to August 2018. Growth parameters were computed for the European hake males and females by applying the von Bertalanffy growth formula. The asymptotic lengths (L∞), growth coefficients (k) and the theoretical age at zero-length (t0) for females and males were; L∞ = 80.19 cm, k = 0.27 year−1, t0 = –0.472 year−1, and L∞ = 69.15 cm, k = 0.31 year−1, t0 = –0.426 year−1, respectively. The total mortality rate (Z), natural (M) and fishing mortality (F) were estimated as Z = 1.49, M = 0.51 and F = 0.98 for combined sexes. The estimated exploitation ratio (E = 0.66), indicated overexploitation of the M. merluccius in the North Atlantic coasts of Morocco. |
| first_indexed | 2024-04-11T20:32:53Z |
| format | Article |
| id | doaj.art-e5e40b84a5a849ee9726c09a6c2dcc9f |
| institution | Directory Open Access Journal |
| issn | 1687-4285 |
| language | English |
| last_indexed | 2024-04-11T20:32:53Z |
| publishDate | 2022-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Egyptian Journal of Aquatic Research |
| spelling | doaj.art-e5e40b84a5a849ee9726c09a6c2dcc9f2022-12-22T04:04:27ZengElsevierEgyptian Journal of Aquatic Research1687-42852022-09-01483233239Growth and mortality of the European hake Merluccius merluccius (Linnaeus, 1758) from the North of Moroccan Atlantic coastsChaimae El Bouzidi0Nourddine Abid1Hesham Awadh2Mohammed Bakkali3Mounir Hassani Zerrouk4Research team in Biotechnology and biomolecular engineering, FSTT, Abdelmalek Essaadi University, Tetouan, Morocco; Corresponding author.Fishing Laboratory, Regional Center of the National Institute of Fisheries Research, Tangier, MoroccoDepartment of Biology, Faculty of Sciences, Abdelmalek Essaâdi University, Tetouan, Morocco; Marine Science & Biological Research Authority, Houdaydah, YemenResearch team in Biotechnology and biomolecular engineering, FSTT, Abdelmalek Essaadi University, Tetouan, MoroccoResearch team in Biotechnology and biomolecular engineering, FSTT, Abdelmalek Essaadi University, Tetouan, MoroccoGrowth and mortality studies on fish are considered crucial to the comprehension of species biology and population dynamics. This work aims to study the growth and mortality of Merluccius merluccius (Linnaeus, 1758) from the North Atlantic coasts of Morocco. A total of 1001 European hakes was sampled from trawler’s fishery during the period from August 2017 to August 2018. Growth parameters were computed for the European hake males and females by applying the von Bertalanffy growth formula. The asymptotic lengths (L∞), growth coefficients (k) and the theoretical age at zero-length (t0) for females and males were; L∞ = 80.19 cm, k = 0.27 year−1, t0 = –0.472 year−1, and L∞ = 69.15 cm, k = 0.31 year−1, t0 = –0.426 year−1, respectively. The total mortality rate (Z), natural (M) and fishing mortality (F) were estimated as Z = 1.49, M = 0.51 and F = 0.98 for combined sexes. The estimated exploitation ratio (E = 0.66), indicated overexploitation of the M. merluccius in the North Atlantic coasts of Morocco.http://www.sciencedirect.com/science/article/pii/S1687428521001072MerluciidaeAgeExploitationFisheryNorth-east Atlantic |
| spellingShingle | Chaimae El Bouzidi Nourddine Abid Hesham Awadh Mohammed Bakkali Mounir Hassani Zerrouk Growth and mortality of the European hake Merluccius merluccius (Linnaeus, 1758) from the North of Moroccan Atlantic coasts Egyptian Journal of Aquatic Research Merluciidae Age Exploitation Fishery North-east Atlantic |
| title | Growth and mortality of the European hake Merluccius merluccius (Linnaeus, 1758) from the North of Moroccan Atlantic coasts |
| title_full | Growth and mortality of the European hake Merluccius merluccius (Linnaeus, 1758) from the North of Moroccan Atlantic coasts |
| title_fullStr | Growth and mortality of the European hake Merluccius merluccius (Linnaeus, 1758) from the North of Moroccan Atlantic coasts |
| title_full_unstemmed | Growth and mortality of the European hake Merluccius merluccius (Linnaeus, 1758) from the North of Moroccan Atlantic coasts |
| title_short | Growth and mortality of the European hake Merluccius merluccius (Linnaeus, 1758) from the North of Moroccan Atlantic coasts |
| title_sort | growth and mortality of the european hake merluccius merluccius linnaeus 1758 from the north of moroccan atlantic coasts |
| topic | Merluciidae Age Exploitation Fishery North-east Atlantic |
| url | http://www.sciencedirect.com/science/article/pii/S1687428521001072 |
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