Indonesian Journal of Mollusk
Vol. 3 No. 1 (2019): April 2019

The Effect of Patch Size on Morphology and Growth on The Intertidal Box Mussel Septifer bilocularis L., in North Sulawesi, Indonesia

Medy Ompi (Department of Marine Sciences, Faculty of Fisheries, Sam Ratulangi University, Manado, 95115, Indonesia)
Lawrence J.L. Lumingas (Department of Marine Sciences, Faculty of Fisheries, Sam Ratulangi University, Manado, 95115, Indonesia)

Article Info

Publish Date
01 Apr 2019

Abstract

Isolated small and large patches of Septifer bilocularis were divided into three length size classes: small (>10 to 17 mm), medium (>17 to 23 mm), and large (>23 mm) mussels. Each group was divided into three groups of different densities to form isolated patches (10 individuals), medium patches (50 individuals), and large patches (100 individuals). Three replicates of each patch size were established. Each density group was placed in a cage and returned to their natural hard bottom substrata, placed randomly, 50 cm between cages. At low water level, the area was exposed to air. The length / weight regression line of mussels in small and large patches overlapped, but there was a significant difference between the slopes (ANCOVA, p<0.05). Mussels occurring in small patches were heavier and thicker than those of larger patches. Box mussels in small patches had significantly higher growth than mussels in medium and large patches

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Journal Info
Indonesian Journal of Mollusk
Website

Abbrev

jmi

Publisher

Indonesian Mollusk Society

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

Description

The Indonesian Journal of mollusk is dedicated to publishing high quality research papers and reviews in all aspects of molluscs including ecology, conservation, biodiversity, aquaculture, microbiology and biotechnology. The Mollusk Journal is published 2 (two) times a year, namely April and ...