Growth analysis, mortality and exploitation level of Mud Crab Scylla serrata, Forskål 1775, (Malacostraca : Portunidae) in Mangkang Wetan waters, Semarang, Central Java, Indonesia
Awareness of Mud Crab over exploitation in Mangkang Wetan Waters has been noticed. One of the reference information is the growth study to determine the condition of the mud crab population. High demand encourages the fisherman to catch more, which leads to overexploitation in nature. The study aime...
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| Format: | Article |
| Language: | Indonesian |
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Diponegoro University
2020-02-01
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| Series: | Jurnal Kelautan Tropis |
| Subjects: | |
| Online Access: | https://ejournal2.undip.ac.id/index.php/jkt/article/view/7149 |
| _version_ | 1798028751600091136 |
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| author | Ervia Yudiati Arumning Tias Fauziah Irwani Irwani Agus Setyawan Insafitri Insafitri |
| author_facet | Ervia Yudiati Arumning Tias Fauziah Irwani Irwani Agus Setyawan Insafitri Insafitri |
| author_sort | Ervia Yudiati |
| collection | DOAJ |
| description | Awareness of Mud Crab over exploitation in Mangkang Wetan Waters has been noticed. One of the reference information is the growth study to determine the condition of the mud crab population. High demand encourages the fisherman to catch more, which leads to overexploitation in nature. The study aimed to estimate the growth, mortality, and exploitation rate of mud crabs. The 921 mud crabs samples were collected from Mangkang Wetan Waters from October 2018 to January 2019. The method used was the survey method. The crabs were taken once a week for 4 months. The width and weight of crab carapace were measured. The growth rate of S. serrata was 0.93/year (male) and 0.69/year (female). The natural mortality rate of S. serrata was 1.08/year (male) and 0.89/year (female), the mortality of catch (F) was 0.55/year (male) and 1.09/year (female). The rate of exploitation of male S. serrata reached 34%, and the rate of exploitation of female S. serrata was 55%. The exploitation of female S. serrata shows that overexploitation has occurred because the optimum value of exploitation (E-OPTIMUM) is equivalent to E=50%. |
| first_indexed | 2024-04-11T19:13:28Z |
| format | Article |
| id | doaj.art-819ef51ba5ec43059204be646f75ae77 |
| institution | Directory Open Access Journal |
| issn | 1410-8852 2528-3111 |
| language | Indonesian |
| last_indexed | 2024-04-11T19:13:28Z |
| publishDate | 2020-02-01 |
| publisher | Diponegoro University |
| record_format | Article |
| series | Jurnal Kelautan Tropis |
| spelling | doaj.art-819ef51ba5ec43059204be646f75ae772022-12-22T04:07:31ZindDiponegoro UniversityJurnal Kelautan Tropis1410-88522528-31112020-02-0123113614410.14710/jkt.v23i1.71493277Growth analysis, mortality and exploitation level of Mud Crab Scylla serrata, Forskål 1775, (Malacostraca : Portunidae) in Mangkang Wetan waters, Semarang, Central Java, IndonesiaErvia Yudiati0https://orcid.org/0000-0001-5758-7170Arumning Tias Fauziah1Irwani Irwani2Agus Setyawan3Insafitri Insafitri4Departemen Ilmu Kelautan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, IndonesiaDepartemen Ilmu Kelautan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, IndonesiaDepartemen Ilmu Kelautan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, IndonesiaUniversitas Lampung, IndonesiaUniversitas Trunojoyo Madura, IndonesiaAwareness of Mud Crab over exploitation in Mangkang Wetan Waters has been noticed. One of the reference information is the growth study to determine the condition of the mud crab population. High demand encourages the fisherman to catch more, which leads to overexploitation in nature. The study aimed to estimate the growth, mortality, and exploitation rate of mud crabs. The 921 mud crabs samples were collected from Mangkang Wetan Waters from October 2018 to January 2019. The method used was the survey method. The crabs were taken once a week for 4 months. The width and weight of crab carapace were measured. The growth rate of S. serrata was 0.93/year (male) and 0.69/year (female). The natural mortality rate of S. serrata was 1.08/year (male) and 0.89/year (female), the mortality of catch (F) was 0.55/year (male) and 1.09/year (female). The rate of exploitation of male S. serrata reached 34%, and the rate of exploitation of female S. serrata was 55%. The exploitation of female S. serrata shows that overexploitation has occurred because the optimum value of exploitation (E-OPTIMUM) is equivalent to E=50%.https://ejournal2.undip.ac.id/index.php/jkt/article/view/7149growthmortalityexploitationscylla serrata |
| spellingShingle | Ervia Yudiati Arumning Tias Fauziah Irwani Irwani Agus Setyawan Insafitri Insafitri Growth analysis, mortality and exploitation level of Mud Crab Scylla serrata, Forskål 1775, (Malacostraca : Portunidae) in Mangkang Wetan waters, Semarang, Central Java, Indonesia Jurnal Kelautan Tropis growth mortality exploitation scylla serrata |
| title | Growth analysis, mortality and exploitation level of Mud Crab Scylla serrata, Forskål 1775, (Malacostraca : Portunidae) in Mangkang Wetan waters, Semarang, Central Java, Indonesia |
| title_full | Growth analysis, mortality and exploitation level of Mud Crab Scylla serrata, Forskål 1775, (Malacostraca : Portunidae) in Mangkang Wetan waters, Semarang, Central Java, Indonesia |
| title_fullStr | Growth analysis, mortality and exploitation level of Mud Crab Scylla serrata, Forskål 1775, (Malacostraca : Portunidae) in Mangkang Wetan waters, Semarang, Central Java, Indonesia |
| title_full_unstemmed | Growth analysis, mortality and exploitation level of Mud Crab Scylla serrata, Forskål 1775, (Malacostraca : Portunidae) in Mangkang Wetan waters, Semarang, Central Java, Indonesia |
| title_short | Growth analysis, mortality and exploitation level of Mud Crab Scylla serrata, Forskål 1775, (Malacostraca : Portunidae) in Mangkang Wetan waters, Semarang, Central Java, Indonesia |
| title_sort | growth analysis mortality and exploitation level of mud crab scylla serrata forskal 1775 malacostraca portunidae in mangkang wetan waters semarang central java indonesia |
| topic | growth mortality exploitation scylla serrata |
| url | https://ejournal2.undip.ac.id/index.php/jkt/article/view/7149 |
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