%A  Melinda Safitri Di Ajeng
%T STRUKTUR KOMUNITAS ECHINODERMATA
DI EKOSISTEM LAMUN PULAU TANGKIL,
PESAWARAN, LAMPUNG
%X Filum echinodermata merupakan salah satu kelompok biota yang hidup pada eko-
sistem lamun. Penelitian ini bertujuan untuk mempelajari struktur komunitas echi-
nodermata di Pulau Tangkil, Pesawaran, Lampung. Pengambilan data penelitian

dimulai pada September 2023. Terdapat tiga titik lokasi penelitian dengan masing-
masing lokasi memiliki 3 pengulangan. Tahapan penelitian dimulai dari pengam-
bilan data lamun dan echinodermata, data parameter kualitas perairan, dan peng-
ambilan sampel substrat. Berdasarkan hasil analisis, lamun jenis Enhalus acoro-
ides memiliki nilai INP tertinggi di lokasi daerah wisata dan lokasi dermaga, dan

Cymodocea rotundata di lokasi alami. Hasil analisis indeks keane-karagaman (H?)

echinodermata di tiap lokasi memiliki nilai yang rendah, penyebaran jenis echino-
dermata di tiap lokasi tidak merata dan indeks dominansinya menunjukkan adanya

spesies yang mendominasi di tiap lokasi. Hasil analisis PCA menunjukkan kelim-
pahan echinodermata berhubungan positif dengan salinitas, DO, dan pH, namun

berkorelasi negatif dengan suhu dan kecerahan, sedangkan kelimpahan echinoder-
mata berhubungan positif dengan kerapatan lamun.

Kata kunci: Echinodermata, lamun, parameter kualitas perairan, dan jenis substrat

Phylum echinoderms are one of the biota that live in seagrass ecosystems. This
research was to study the community structure of echinoderm on Tangkil Island,
Pesawaran, Lampung. The data collection began in September 2023. There were

three research locations with each location having 3 repetitions. The research sta-
ge started from seagrass and echinoderm data collection, water quality parameter

data, and substrate sampling. Based on the results of the analysis, seagrass species
Enhalus acoroides had the highest INP value at tourist areas and dock location,
and Cymodocea rotundata at natural locations. The results of the analysis of the

diversity index (H') of echinoderms in each location had a low value, the distri-
bution of echinoderm species in each location was uneven, and the dominance

index showed the presence of dominant species in each location. The results of
PCA analysis showed that the abundance of echinoderms was positively related to
salinity, DO, and pH, but negatively correlated with temperature and brightness.
Meanwhile, the abundance of echinoderms was positively related to seagrass
density.
Keywords: Echinoderms, seagrasses, water quality parameters, and substrate types
%C UNIVERSITAS LAMPUNG
%D 2024
%I FAKULTAS PERTANIAN
%L eprints83360