Keterkaitan antara Kondisi Mangrove dengan Komunitas Gastropoda di Kaliwlingi, Brebes, Jawa Tengah

Abstract

Mangrove memiliki beberapa peran penting untuk menjaga keseimbangan ekosistem. Peran penting tersebut adalah sebagai habitat bagi biota yang berasosiasi, salah satunya adalah gastropoda. Gastropoda merupakan hewan bercangkang berperan sebagai hewan bioindikator serta mempengaruhi rantai makanan. Namun, keberadaan gastropoda tersebut bisa hilang karena kegiatan antropogenik yang berlebih. Penelitian ini bertujuan untuk menganalisis keterkaitan mangrove dengan komunitas gastropoda di Kawasan Mangrovesari Brebes. Data yang diambil berupa kerapatan dan Indeks Nilai Penting (INP) mangrove, keanekaragaman, keseragaman dan dominansi gastropoda, kuliatas air serta bahan organik. Dari hasil penelitian terdapat tiga jenis mangrove dan lima belas jenis gastropoda. Kawasan tersebut memiliki mangrove dengan tinggi, keaneraragaman gastropoda tergolong sedang dengan nilai keseragaman yang rendah sampai sedang dan tidak terdapat spesies yang mendominasi. Kualitas air masih memenuhi baku mutu dan bahan organik tergolong tinggi. Analisis Canonical Correspondence Analysys (CCA) menunjukkan hubungan yang cukup kuat sehingga kondisi lingkungan mangrove dan gastropoda saling berkaitan.

Mangroves have several vital roles maintaining the balance of the ecosystem. Its essential role is as a habitat for associated biota, one of which is gastropods. Gastropods are shelled animals that act as bioindicator animals and influence the food chain. However, the existence of these gastropods can be lost due to excessive anthropogenic activities. This study aims to analyze the relationship between mangrove and gastropod communities in the Brebes Mangrovesari area. The data taken were in the form of density and Important Value Index (IVI) of mangroves, diversity, uniformity and dominance of gastropods, water quality and organic matter. From the results of the study, there were three types of mangroves and fifteen types of gastropods. The area has high mangroves, moderate gastropod diversity with low to moderate uniformity values and no dominant species. Water quality still meets quality standards and organic matter is relatively high. Canonical Correspondence Analysis (CCA) shows a fairly strong relationship, so the environmental conditions of mangroves and gastropods are interrelated.