Open AccessPERTUMBUHAN POPULASI BULU BABI (Echinometra mathaei) DI PERAIRAN PESISIR KIMA BAJO KABUPATEN MINAHASA UTARA
Author(s) -
Ruddy D. Moningkey
Publication year - 2010
Publication title -
jurnal perikanan dan kelautan tropis
Language(s) - English
Resource type - Journals
eISSN - 2302-609X
pISSN - 2302-6081
DOI - 10.35800/jpkt.6.2.2010.164
Subject(s) - sea urchin , population , biology , zoology , ecology , demography , sociology
Sea urchins of different colors were collected 50 individuals each and measured their morphological characters. The data were then transformed to natural logarithm and analyzed using regression. The comparison of the regression line intercept for the shell diameter-height relationship did not show any difference, but there was a significant difference for the shell lenght-heigth relationship. The comparison between different colors exhibited variations in the shell morphology of each sea urchin population. The growth of black spined-sea urchin (Echinometra mathaei), was negative allometric; the fact that they were mostly found in the narrow crevices might have influenced their growth.