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BENTHOS
PHYLUM PROTOZOA
PHYLUM PORIFERA
Phylum Coelenterata
Phylum Platyhelminthes
Phylum Aschelminthes
Phylum Annelida
Phylum Arthropoda
Phylum Mollusca
Phylum Echinodermata
Indeks Keanekaan Shannon & Wiener
H1 = - Σ (ni/N) ln (ni/N)
= - Σ Pi ln Pi
Indeks keanekaan Simpson
D = Σ ( ni/N)2
I = 1 – D
