Munasik, Munasik (2017) Biodiversity of Cryptofauna (Decapods) and Their Correlation with Dead Coral Pocillopora sp. Volume at Bunaken Island, North Sulawesi. IOP Publishing.

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Abstract

Decapod is known as cryptofauna which is also important component of coral reef
biodiversity. Dead corals are one of the area which usually used by decapods to live. This
research aims to observe the diversity of cryptofauna (decapods) and the correlation between the
number of decapods with the volume of dead corals. Ten dead corals, Pocillopora sp., were
collected at 5 m depth at Bunaken Island. These dead corals were measured their volume and all
decapods found were counted and identified up to family level. The richness and abundance
were analyzed using ACE (Abundance-Based Coverage Estimates) and Chao 1. The results
show that there were in total 474 decapods from 13 families found within all ten dead corals.
Xanthidae was showed as the most abundance family among all, with 161 individual. Diversity
index of decapods was found at medium category with value of 2.01. Rarefaction curve based
on richness and abundance showed an estimation of 13 families. The result also indicated that
the asymptote stage was reached on the 10
dead coral samples. The correlation between
decapod with the volume of dead coral were showed significant positive correlation (r = 0.673,
p<0.05). This result provides benefits to basic knowledge about diversity of decapod which one
of cryptofauna as component fauna have a habitat on coral reef ecosystem.

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