Struktur komunitas ikan target di terumbu karang Pulau Hogow dan Putus-Putus Sulawesi Utara
Jurnal Perikanan dan Kelautan Tropis, 2011•ejournal.unsrat.ac.id
Community structure of target fishes was analyzed to understand their response to different
conditions of coral reefs in several places of Hugow and Putus-Putus islands. This study
focused on species abundance and diversity including Shannon-Wiener's species diversity
(H'), species richness (SR), species evenness (J') and dominance (d) indices, respectively. A
multivariate analysis was used for the classification or correspondence factorial analyses.
The result recorded 4,501 individuals belonging to 52 species of target fishes. Both cluster …
conditions of coral reefs in several places of Hugow and Putus-Putus islands. This study
focused on species abundance and diversity including Shannon-Wiener's species diversity
(H'), species richness (SR), species evenness (J') and dominance (d) indices, respectively. A
multivariate analysis was used for the classification or correspondence factorial analyses.
The result recorded 4,501 individuals belonging to 52 species of target fishes. Both cluster …
Abstract
Community structure of target fishes was analyzed to understand their response to different conditions of coral reefs in several places of Hugow and Putus-Putus islands. This study focused on species abundance and diversity including Shannon-Wiener’s species diversity (H’), species richness (SR), species evenness (J’) and dominance (d) indices, respectively. A multivariate analysis was used for the classification or correspondence factorial analyses. The result recorded 4,501 individuals belonging to 52 species of target fishes. Both cluster and correspondence analyses clearly recognized 3 groups of target fish with 2 major controlling factors for the development of these 3 ecological groups, ie coral reef conditions and geographic position to the hydrodynamic condition.
ABSTRAK
Struktur komunitas ikan target dianalisis untuk melihat respon ikan target terhadap perbedaan kondisi terumbu karang di beberapa lokasi Pulau Hogow dan Putus-Putus. Penelitian ini dilakukan pada bulan Oktober 2010 dengan pengambilan data di 6 stasiun. Dalam penelitian ini telah dikaji variabel komunitas seperti kelimpahan dan keanekaragaman spesies termasuk indeks keanekaragaman spesies Shannon-Wiener (H’), indeks kekayaan spesies (SR), indeks kemerataan spesies (J’) dan indeks dominasi (d). Untuk melihat assemblage ikan target dilakukan analisis multivariat baik analisis klasifikasi maupun analisis faktorial koresponden. Dalam penelitian ini diperoleh 4501 indidu yang termasuk dalam 52 spesies ikan target. Analisis multivariat baik analisis cluster maupun analisis koresponden telah memisahkan dengan jelas 3 grup ikan target, dimana terdapat dua faktor utama pengendali pembentukan 3 grup ekologis ini yakni faktor kondisi terumbu karang dan faktor posisi lokasi terhadap kondisi hidrodinamika perairan.
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