By: Medy Ompi
A study was conducted on an intertidal population of Septifer bilocularis L. in Tongkeina, North Sulawesi, Indonesia. Field experiments utilizing open and closed cages were carried out to investigate the influence of four types of substrates on the settlement of S. bilocularis: live shells of adult mussels, dead shells, coral rubble, and sand. Each substrate was subjected to four levels of adult mussel density: 0, 10, 50, and 100 individuals per compartment. The relationship between the number of recruits and cage type, substrate type, and adult density was analyzed using Two-way ANOVA.
Results from the experiment revealed that the presence of new recruits was significantly affected by the type of substrate, while the density of adult mussels did not exhibit a significant impact. Notably, the surface of adult box mussels emerged as the most favorable substrate for the settlement of recruits.
Source: Jurnal Moluska Indonesia
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