Population Dynamics of Penaeus semisulcatus in the Gulf of Suez, Egypt
Monthly length frequency data of Penaeus semisulcatus were analyzed to determine the age, growth, mortality rates and yield per recruit. The maximum life span of P. semisulcatus was found to be 15 months for males and 18 months for females. The asymptotic total length was estimated to be 22...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Asian Fisheries Society
2000-06-01
|
| Series: | Asian Fisheries Science |
| Online Access: | https://www.asianfisheriessociety.org/publication/downloadfile.php?id=432&file=Y0dSbUx6QXlOREV3TnpJd01ERXpOVFU0TWpNNU1qVXVjR1Jt |
| _version_ | 1811253525205745664 |
|---|---|
| author | S.F. MEHANNA |
| author_facet | S.F. MEHANNA |
| author_sort | S.F. MEHANNA |
| collection | DOAJ |
| description | Monthly length frequency data of Penaeus semisulcatus were analyzed to determine the age, growth, mortality rates and yield per recruit. The maximum life span of P. semisulcatus was found to be 15 months for males and 18 months for females. The asymptotic total length was estimated to be 22.4 cm for males and 26.8 cm for females. The growth parameter K was calculated as 1.77year-1 for males and 1.56 year-1 for females. The total mortality coefficient Z, was estimated to be 8.18 for males and 6.77 for females. The natural mortality coefficient was estimated to be 2.52 for males and 2.40 for females. Yield per recruit (Y/R) analysis indicated that a high value of Y/R can be obtained at high values of fishing mortality but this may not be biologically appropriate. |
| first_indexed | 2024-04-12T16:52:18Z |
| format | Article |
| id | doaj.art-f66d683a834e4db8be32e5878f550ed5 |
| institution | Directory Open Access Journal |
| issn | 0116-6514 2073-3720 |
| language | English |
| last_indexed | 2024-04-12T16:52:18Z |
| publishDate | 2000-06-01 |
| publisher | Asian Fisheries Society |
| record_format | Article |
| series | Asian Fisheries Science |
| spelling | doaj.art-f66d683a834e4db8be32e5878f550ed52022-12-22T03:24:22ZengAsian Fisheries SocietyAsian Fisheries Science0116-65142073-37202000-06-0113210.33997/j.afs.2000.13.2.004Population Dynamics of Penaeus semisulcatus in the Gulf of Suez, EgyptS.F. MEHANNA Monthly length frequency data of Penaeus semisulcatus were analyzed to determine the age, growth, mortality rates and yield per recruit. The maximum life span of P. semisulcatus was found to be 15 months for males and 18 months for females. The asymptotic total length was estimated to be 22.4 cm for males and 26.8 cm for females. The growth parameter K was calculated as 1.77year-1 for males and 1.56 year-1 for females. The total mortality coefficient Z, was estimated to be 8.18 for males and 6.77 for females. The natural mortality coefficient was estimated to be 2.52 for males and 2.40 for females. Yield per recruit (Y/R) analysis indicated that a high value of Y/R can be obtained at high values of fishing mortality but this may not be biologically appropriate.https://www.asianfisheriessociety.org/publication/downloadfile.php?id=432&file=Y0dSbUx6QXlOREV3TnpJd01ERXpOVFU0TWpNNU1qVXVjR1Jt |
| spellingShingle | S.F. MEHANNA Population Dynamics of Penaeus semisulcatus in the Gulf of Suez, Egypt Asian Fisheries Science |
| title | Population Dynamics of Penaeus semisulcatus in the Gulf of Suez, Egypt |
| title_full | Population Dynamics of Penaeus semisulcatus in the Gulf of Suez, Egypt |
| title_fullStr | Population Dynamics of Penaeus semisulcatus in the Gulf of Suez, Egypt |
| title_full_unstemmed | Population Dynamics of Penaeus semisulcatus in the Gulf of Suez, Egypt |
| title_short | Population Dynamics of Penaeus semisulcatus in the Gulf of Suez, Egypt |
| title_sort | population dynamics of penaeus semisulcatus in the gulf of suez egypt |
| url | https://www.asianfisheriessociety.org/publication/downloadfile.php?id=432&file=Y0dSbUx6QXlOREV3TnpJd01ERXpOVFU0TWpNNU1qVXVjR1Jt |
| work_keys_str_mv | AT sfmehanna populationdynamicsofpenaeussemisulcatusinthegulfofsuezegypt |