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