Settlement Of Marine Boring Bivalve Larvae On Wood Soaked Horizontally And Vertically In West Java

By: Fredinan Yulianda

Red meranti wood (Shorea leprosula) segments were submerged in both horizontal and vertical orientations in seawater for a duration of 9 weeks. During this period, two species of bivalves, namely Bankia campanellata (Moll & Roch) and Martesia striata (Linné), adhered to the wood surfaces. The average densities of settling larvae were recorded as 125 individuals per 100 square centimeters on horizontal wood and 95 individuals per 100 square centimeters on vertical wood, suggesting a propensity for settlement on the upper surface of the wood. Notably, the number of larvae settling on wood positioned at the water's surface did not exhibit a significant variance compared to those settling on wood submerged at a depth of 1.25 meters.

Source: Jurnal Moluska Indonesia