Jurnal Sumberdaya Akuatik Indopasifik
Vol 6 No 3 (2022): Agustus

Persentase Tutupan dan Indeks Mortalitas Terumbu Karang di Perairan Pomalaa Sulawesi Tenggara

Lalang Lalang (Universitas Halu Oleo)
Riska Riska (Program Studi Ilmu Kelautan, Fakultas Pertanian, Perikanan, dan Peternakan, USN Kolaka, Kolaka, 93517, Indonesia)
Ilham Antariksa Tasabaramo (Program Studi Ilmu Kelautan, Fakultas Pertanian, Perikanan, dan Peternakan, USN Kolaka, Kolaka, 93517, Indonesia)
Maharani Maharani (Program Studi Ilmu Kelautan, Fakultas Pertanian, Perikanan, dan Peternakan, USN Kolaka, Kolaka, 93517, Indonesia)



Article Info

Publish Date
31 Aug 2022

Abstract

Corals are unique and specific ecosystems found in tropical waters, and are vulnerable to changes in the aquatic environment. This study aims to determine the percentage of coral reef cover and coral reef mortality index in Pomalaa waters. Coral observations were carried out at a depth of 3 m to represent shallow waters and 7 m to represent deep waters, each of which consisted of 4 observation points. The water quality parameters that were measured directly in the field were temperature, salinity, pH, water brightness and current speed using a Water Quality Checker (TOAA) and for nitrate and phosphate analysis carried out in the laboratory. The results showed that the water quality at each research station did not differ that much. The condition of coral reefs in Pomalaa waters at a depth of 3 m is categorized as damaged, with the percentage of live coral cover ranging from 11.85% - 22.07%. At a depth of 7 m the average is in moderate to damaged condition, with the percentage of cover in the range of 16.13% - 28.81%. This shows that coral diversity is generally low, so that no coral species dominates. The mortality rate of coral reefs in Pomalaa waters is high at a depth of 3 meters, namely 0.75, meaning that 75% of coral reefs are in bad condition to death, as well as at a depth of 7 meters, the highest mortality index is 0.63 meaning 63% of coral reefs in a depth of 7 meters experienced bad conditions to death.

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Journal Info

Abbrev

JSAI

Publisher

Subject

Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Environmental Science

Description

Journal name: Jurnal Sumberdaya Akuatik Indopasifik. Focus and scope of Jurnal Sumberdaya Aquatik Indopasifik are research paper in term of fisheries and marine science which can be seen also in some of study aspect such as the conservation, management, aquaculture, enginering, biology, chemistry, ...