KAJIAN RESIKO KEPITING BAKAU (Scylla serrata) DI ESTUARI MAHAKAM, KALIMANTAN TIMUR
Abstract
Kawasan estuari merupakan wilayah yang kaya akan unsur hara di daerah pantai. Perubahan ekosistem pantai, seperti terjadinya pendangkalan menyebabkan penurunan luasan mangrove. Dampak yang terjadi merupakan penyumbang bagi kerentanan sumberdaya kepiting bakau di daerah tersebut. Tujuan penelitian ini adalah untuk mengetahui tingkat resiko potensi kerentanan sumber daya kepiting bakau dan keberlanjutannya di estuari Sungai Mahakam Kalimantan Timur. Analisis kerentanan menggunakan perangkat lunak PSA (Productivity and Susceptibility Analysis). Hasil analisis menunjukkan bahwa potensi kepiting bakau di Eestuari Mahakam mempunyai kerentanan tingkat rendah (tingkat kerentanan =1,3). Nilai produktivitas (kemampuan pulih sumber daya) menunjukan nilai yang lebih tinggi (2,1) dari pada nilai susceptabilitas (tingkat resiko sumber daya ikan terhadap aktivitas perikanan di perairan tersebut) yaitu 1,9. Dengan kondisi tersebut maka peluang keberlanjutan ketersediaan kepiting bakau di estuari Mahakam berada dalam tingkat sedang.
Estuaries constitute an extremely valuable natural resource in the coastal areas. The coastal ecosystem changes such as deforestation of the estuarine caused the decrease of mangrove forestry. These impacts directly contribute to the vulnerability of mud crab resources. The purpose of this research was to determine the risk level of potential vulnerability of mangrove crab resources in the Mahakam estuary. Vulnerability analysis using Productivity and Susceptibility Analysis (PSA) software. The results showed that mangrove crabs in the Mahakam estuary were low vulnerable (vulnerability level of 1.3). Value of productivity (the ability to recover resources) higher than susceptibility (level of risk of fish resources to fisheries activities in those areas). It, means that the chances for sustainability of mangrove crab in Mahakam estuary were medium level.
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DOI: http://dx.doi.org/10.15578/jppi.25.1.2019.15-26
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