The percentage of coral reef cover in Saonek Kecil Island, Raja Ampat, West Papua

Asean-Fen International Fisheries Symposium - 2017

Wiguna, D.A.^1 ; Masithah, E.D.^2 ; Manan, A.^3

Aquaculture Study Programme, Faculty of Fisheries, Marine Universitas Airlangga, Surabaya, Indonesia^1

Department of Marine Affairs, Faculty of Fisheries, Marine Universitas Airlangga, Surabaya, Indonesia^2

Departement of Fish Health Management and Aquaculture, Faculty of Fisheries and Marine, Universitas Airlangga, Surabaya, Indonesia^3

关键词: Coral reef;    Coral triangles;    Diversity index;    Life form;    Line intercept;    Marine biodiversity;    Uniformity index;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/137/1/012049/pdf
DOI  :  10.1088/1755-1315/137/1/012049

来源: IOP

【 摘 要 】

Raja Ampat archipelago is located in the heart of the world's coral triangle which is the center of the richest tropical marine biodiversity in the world. The Saonek Kecil Island has a location close to the Waisai Harbour (±2 km of sea routes). The Island that has no inhabitants and has a location close to harbour activities potentially damage coral reefs. This research was conducted by Line Intercept Transect (LIT) method that calculate the length of each colony form of growth (life form) of coral reefs on the line transect which stretched along the 50 metres parallel to the coastline at each station to obtain the percentage cover data, diversity index, uniformity index, and dominance index. The results of research precentage cover of coral reeef in the waters of Small Saonek Island reach 68.80% - 79.30% by category according to the decision of the Minister of State for the Environment number 4 of 2001 about the damage the reefs criteria included in the category of good - very good. As for the value of diversity index (H') of 0.487 - 0.675 (medium-high), uniformity index (J) 0.437 - 0.606 (medium-high), and dominance index (C) 0.338 - 0.502 (medium-high).