Kelimpahan Megabentos Sebagai Indikator Kesehatan Karang Di Perairan Bilik, Taman Nasional Baluran, Indonesia

Abstract

Ekosistem terumbu karang adalah ekosistem laut yang sangat rentan oleh kerusakan lingkungan. Terumbu karang di perairan Bilik, Taman Nasional Baluran merupakan contoh ekosistem terumbu karang yang mengalami ancaman kerusakan lingkungan akibat perubahan iklim dan aktivitas manusia. Salah satu metode yang dapat digunakan untuk memonitor kesehatan terumbu karang adalah dengan melihat kelimpahan megabentos dalam ekosistem terumbu karang. Oleh karena itu, penelitian ini memiliki tujuan untuk mengetahui kesehatan ekosistem terumbu karang dengan melihat kelimpahan megabentos di perairan Bilik, Taman Nasional Baluran. Metode yang digunakan dalam inventarisasi megabentos adalah dengan Benthos Belt Transect dan analisis video di Blok Sijile dan Blok Jeding di Perairan Bilik. Hasil pengamatan menunjukkan bahwa di Blok Sijile tidak ditemukan ekosistem terumbu karang dan megabentos. Sementara itu di Blok Jeding ditemukan ekosistem terumbu karang dengan megabentos berupa bulu babi dan bintang laut biru. Kelimpahan bulu babi di dan bintang laut biru adalah 0-0,14 individu/m2. Kondisi tersebut menunjukkan bahwa kesehatan ekosistem terumbu karang di Blok Jeding perairan Bilik Sijile masih baik, namun perlu mendapat perhatian khusus karena sebagian area terumbu karang mengalami pemutihan akibat aktivitas perikanan yang tidak ramah lingkungan.MEGABENTHOS ABUNDANCE AS CORAL HEALTH INDICATORS IN BILIK WATERS, BALURAN NATIONAL PARK, INDONESIA. Coral reef ecosystems are marine ecosystems that are prone to environmental damage. Coral reefs in Bilik waters, Baluran National Park, are examples of coral reef ecosystems that are threatened by environmental damage due to climate change and human activities. One of the methods for health monitoring of coral reefs is by looking at the abundance of megabenthos in coral reef ecosystems. Therefore, this study aims to determine the health of coral reef ecosystems by looking at the abundance of megabenthos in Bilik waters, Baluran National Park. We used Benthos Belt Transect and video analysis to identify the spatial distribution and number of megabenthos in Sijile Block and Jeding Block, Bilik waters. The results showed that in Sijile Block, there were no coral reef neither megabenthos ecosystems. Meanwhile, in Jeding Block, there was a coral reefs ecosystem with megabenthos in the form of sea urchins and blue starfish. The abundance of sea urchins and the blue sea star in Jeding Block was about 0-0.14 individual/m2. These conditions indicate that the health of the coral reef ecosystem in Jeding Block, Bilik waters was still in good condition, even though it still needs special attention related to coral bleaching as a consequence of fisheries activities that are not environmentally friendly.

The Diversity of Mollusks (Bivalve and Gastropod) in the Intertidal Zone of Mutun Coastal, Padang Cermin, Lampung

“…The belt transect method aims to describe the population condition of an organism, the number of individuals and colonies, as well as the number of species and their distribution (Fahruddin et al, 2017;Mutaqin et al, 2020;Erdana et al, 2022). The characteristics of these organisms are that they have various relative sizes or a certain maximum size, one of which is like invertebrates.…”

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“…Megabentos terdiri dari beberapa organisme yang meliputi teripang, kima, lobster, lola, bintang laut berduri, siput drupella, bulu babi, dan bintang laut (Giyanto et al, 2014). Organisme bentik yang berukuran relatif lebih besar memiliki populasi yang banyak dan berperan penting bagi kondisi serta keberlangsungan ekosistem terumbu karang (Mutaqin et al, 2020). Hal ini menjadikan kelompok ini potensial sebagai objek pemantauan persentase tutupan terumbu karang.…”

Avipedia: An electronic encyclopedia of bird diversity in Baluran National Park - Indonesia

“…The conservation area can also be used as a source of learning (Wijarini et al, 2019), one of which is Baluran National Park, a conservation area in the East Java -Indonesia (M. A. I. Istomo & Hartarto, 2019;Mutaqin et al, 2020;Wati et al, 2019). As a source of learning, the diversity of birds in the Baluran National Park area can be developed into learning media (Takandjandji & Sawitri, 2010).…”