| Autor: |
Suman, Ali, Hasanah, Ap'idatul, Nasution, Syahroma Husni, Batubara, Habson, Prihatiningsih, Bintoro, Gatut |
| Předmět: |
|
| Zdroj: |
Journal of Namibian Studies; 2023 Special Issue, Vol. 33, p1378-1394, 17p |
| Abstrakt: |
The high market demand for banana prawn (P. merguiensis) has caused intensive fishing for this resources and tended to threaten their sustainability. Studies of population dynamics and spawning potential ratio are the main foundations for formulating a management for sustainable utilization. The purpose of this study was to determine the population dynamic and spawning potential ratio of banana prawn in Merauke waters, Papua. The study was conducted from 2017 to 2019 using a survey method. The study results revealed that the banana growth pattern was negative allometric and that the ratio of males and females was imbalanced. The spawning season of banana prawn in Merauke waters occurs throughout the year with one peak in August. Based on carapace length measurement, length at first capture (Lc) and length at first maturity (Lm) were 33.5 mm and 32.7 mm respectively. While growth rate (K) and maximum carapace length (Lâ?ž) valued 1.25 per year and 64.85 mm respectively. The estimate total mortality rate (Z) was 3.20 per year, the fishing mortality rate (F) and natural mortality rate (M) were 1.7 per year and 1.49 per year, respectively. The exploitation rate (E) was 0.53 per year and the spawning potential ratio (SPR) was 15 %. Therefore the stock status was categorized as overfishing. In order to ensure the sustainability of the banana prawn, precautionary approach such as reducing fishing effort by 6 % of the current situation is strongly needed to be applied. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
