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Penilaian kesehatan ekosistem terumbu karang dan padang lamun di Tiaro (LMMA), Guadalcanal Barat, Kepulauan Solomon Belade, Jimmy; Kodiran, Taryono; Wardiatno, Yusli
Jurnal Pengelolaan Lingkungan Berkelanjutan (Journal of Environmental Sustainability Management) JPLB, Vol 9, No 1 (2025)
Publisher : Badan Kerjasama Pusat Studi Lingkungan (BKPSL) se-Indonesia bekerjasama dengan Pusat Penelitian Lingkungan Hidup IPB (PPLH-IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36813/jplb.9.1.79-100

Abstract

Coral reefs, seagrass meadows and associated fish communities are essential coastal ecosystems that provide significant ecological and economic benefits. However, these habitats are increasingly threatened by anthropogenic activities and climate change. This study assessed coral cover, reef fish composition and abundance and seagrass distribution in the Tiaro Locally Managed Marine Area (LMMA), Solomon Islands, to evaluate ecosystem health and conservation effectiveness. Ecological surveys at eleven sites revealed variable coral cover, ranging from 26% to 52%, with bleaching and disease most prevalent at Kotatave (11%) and Kokomu (10%). Herbivorous fish, particularly Pomacentridae and Acanthuridae, dominated the fish assemblages, while predatory species were scarce, suggesting trophic imbalance. Seagrass coverage varied across sites, with Cymodocea rotundata being the most dominant species, especially at Leleona (72% coverage). The findings highlight the interdependence of coral, seagrass and fish communities and emphasize the need for integrated, community-based conservation strategies to enhance ecosystem resilience.
Analisis Kelayakan Usaha dan Efisiensi Faktor Produksi Budi Daya Udang Vaname (Litopennaeus Vannamei) di Kabupaten Barru Rusdi, Rismawaty; Kasri, Kasri; Kodiran, Taryono
Jurnal Sosial Ekonomi Kelautan dan Perikanan Vol 20, No 1 (2025): JUNI 2025
Publisher : Balai Besar Riset Sosial Eonomi Kelautan dan Perikanan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jsekp.v20i1.16095

Abstract

Perbedaan sistem budi daya dan kebiasan lokal petambak tanpa perhitungan input-output yang rasional berpotensi menurunkan efisiensi dan kelayakan usaha udang vaname. Penelitian ini bertujuan menganalisis kelayakan usaha dan efisiensi faktor produksi budi daya udang vaname di Kabupaten Barru pada dua Desa Sentra, yaitu Desa Corawali (tradisional) dan Desa Lawallu (semi-intensif). Metode yang digunakan adalah metode kuantitatif melalui analisis kelayakan finansial serta analisis efisiensi faktor produksi menggunakan fungsi produksi Cobb-Douglas yang dilanjutkan dengan perhitungan efisiensi alokatif. Hasil penelitian menunjukkan bahwa usaha budi daya di kedua desa layak diusahakan (R/C > 1), namun Desa Lawallu memiliki Net Profit lebih besar dan Payback Period lebih cepat dibandingkan Desa Corawali. Luas lahan dan jumlah benih merupakan faktor yang paling berpengaruh terhadap produksi. Analisis efisiensi alokatif menunjukkan bahwa pemanfaatan lahan di kedua desa cenderung berlebihan, sementara jumlah benih di Desa Lawallu masih perlu dimanfaatkan secara optimal. Oleh karena itu, diperlukan pengaturan kembali skala lahan dan padat tebar sesuai daya dukung tambak, serta dukungan pemerintah melalui perbaikan fasilitas irigasi di Desa Corawali dan pelatihan pengelolaan pakan serta teknologi budi daya ramah lingkungan untuk mendukung produksi yang berkelanjutan.Title: Analysis of Business Feasibility and Optimization of Production Factors of Vaname Shrimp Cultivation in Barru RegencyDifferences in cultivation systems and local practices of farmers without rational input-output calculations have the potential to reduce the efficiency and feasibility of vannamei shrimp farming. This study aims to analyze the feasibility of the business and the efficiency of production factors of vannamei shrimp farming in Barru Regency in two central villages, namely Corawali Village (traditional) and Lawallu Village (semi-intensive). The method used is a quantitative method through financial feasibility analysis and production factor efficiency analysis using the Cobb-Douglas production function followed by allocative efficiency calculations. The results show that the cultivation business in both villages is feasible (R/C > 1), but Lawallu Village has a greater Net Profit and a faster Payback Period than Corawali Village. Land area and number of seeds are the most influential factors on production. The allocative efficiency analysis shows that land utilization in both villages tends to be excessive, while the number of seeds in Lawallu Village still needs to be utilized optimally. Therefore, it is necessary to rearrange the land scale and stocking density according to the carrying capacity of the pond, as well as government support through improving irrigation facilities in Corawali Village and training in feed management and environmentally friendly cultivation technologies to support sustainable production.