STUDI KOMPARASI KEANEKARAGAMAN DAN KEMELIMPAHAN ECHINODERMATA PADA EKOSISTEM TERUMBU KARANG DI KAWASAN PANTAI KEDUNGU DAN PANTAI MERTASARI

Abstract

Penelitian mengenai komparasi keanekaragaman dan kemelimpahan echinodermata pada ekosistem terumbu karang di pantai Kedungu dan pantai Mertasari bertujuan untuk (1) mengetahui perbandingan keanekaragaman echinodermata pada ekosistem terumbu karang di kawasan Pantai Kedungu, Kediri,Tabanan dan di kawasan Pantai Mertasari, Sanur, Denpasar. (2) mengetahui perbandingan kemelimpahan echinodermata pada ekosistem terumbu karang di kawasan Pantai Kedungu, Kediri, Tabanan dan di kawasan Pantai Mertasari, Sanur, Denpasar. (3) mengetahui ada atau tidaknya perbedaan yang signifikan dalam hal keanekaragaman dan kemelimpahan echinodermata pada ekosistem terumbu karang di kedua kawasan pantai tersebut. Penelitian ini merupakan jenis penelitian deskriptif eksploratoris. Rancangan penelitian ini adalah penelitian survei lapangan (field study) dan penelitian laboratorium Titik pengambilan sampel menggunakan metode transek. Hasil penelitian menunjukan bahwa (1) Indeks diversitas (H’) spesies echinodermata di kawasan pantai Kedungu, Kediri, Tabanan tergolong sedang yaitu sebesar 1,038, kekayaan spesies (R) sebesar 1,4980, kemerataan spesies (E) sebesar 0,499 dan indeks dominasi (C) sebesar 0,5457 sedangkan indeks diversitas (H’) spesies echinodermata di kawasan pantai Mertasari, Sanur, Denpasar tergolong sedang yaitu sebesar 1,252, kekayaan spesies (R) sebesar 1,3854, kemerataan spesies (E) sebesar 0,643 dan indeks dominasi (C) sebesar 0,4293. (2) nilai kemelimpahan relatif (KR%) tertinggi di pantai Kedungu yaitu 72,8971% dari spesies Echinus sp. sedangkan pantai Mertasari sebesar 63,1578% dari spesies Echinus sp. (3) Terdapat perbedaan yang signifikan dalam hal keanekaragaman dan kemelimpahan echinodermata antara pantai Kedungu, Kediri, Tabanan dan pantai Mertasari, Sanur, Denpasar
Kata Kunci : keanekaragaman, kemelimpahan, echinodermata, pantai Kedungu, pantai Mertasari

This study comparative research on the diversity and abundance of echinoderm at the coral reef ecosystem in the Kedungu beach and Mertasari beach aims at (1) comparing the diversity of echinoderms in the coral reef ecosystem in the area Kedungu Beach, Kediri, Tabanan and area of Mertasari Beach, Sanur, Denpasar. (2) comparing the abundance of echinoderm coral reef ecosystems in Kedungu Beach, Kediri, Tabanan and Mertasari Beach, Sanur, Denpasar. (3) determining whether there are significant differences in terms of diversity and abundance of echinoderms on coral reef ecosystems at both the beach area. This research is categorized as a descriptive study of exploratory. The design of this study is a field study and laboratory research. Sample of this study was taken by using transek. The results of this study showed that (1) Diversity index (H ') echinoderm in Kedungu, Kediri, Tabanan classified as average amount of 1.038, species wealth (R) was 1.4980, species evenness (E) of 0.499 and the dominance index (C) was at 0,5457 while the diversity index (H ') of Mertasari beach, Sanur, Denpasar was classified as average amount at 1.252, species wealth (R) was 1.3854, species evenness (E) was 0.643 and the dominance index (C) was 0,4293. (3) the highest values of relative abundance (KR%) was Kedungu beach which the amount was 72.8971% it was kind of the Echinus sp. while Mertasari beach which the amount was 63.1578% it was kind of the Echinus sp. (4) there is a significant differences in terms of diversity and abundance of echinoderms between the Kedungu beach, Kediri, Tabanan and Mertasari beach, Sanur, Denpasar
keyword : diversity, abundance, echinoderms, Kedungu beach, Mertasasri beach