By Sayu Natio Tarihoran, SusiMei, Arsanti, Rodhi Firmansyah, Dian Fitria M, Tengku Muhammad Ghazali, & Daniel Sinaga
Shellfish, owing to their preference for muddy substrates, are among the organisms that find habitat within mangrove forests. Nevertheless, the mangrove ecosystems along the coastal area of Kalangan, Central Tapanuli Regency, have experienced environmental degradation. Thus, conducting research to assess the density and distribution pattern of shellfish becomes imperative, aiming to provide recommendations for optimal and sustainable management of mangrove forests.
This study was undertaken in September 2020. The sampling locations were determined using a purposive sampling method, employing 1x1m2 plots on the surface of muddy sand substrates. The findings revealed varying population densities and distribution patterns among different species of shellfish.
Anodentia edentula exhibited a population density of 32 ind/m2 at Point I, characterized by a grouping distribution pattern. Cerithidea cingulata displayed densities of 74 ind/m2 at Point I (grouping), 156 ind/m2 at Point II (grouping), and 126 ind/m2 at Point III (grouping). Cerithidea quadrata registered a density of 2 ind/m2 at Point I, demonstrating a uniform distribution. Clypeomorus sp. recorded a density of 12 ind/m2 at Point I, also distributed uniformly. Nerites sp. manifested densities of 178 ind/m2 at Point I (grouping), 94 ind/m2 at Point II (grouping), and 418 ind/m2 at Point III (grouping). Donax trunculus exhibited a density of 3 ind/m2 at Point I, showing a uniform distribution. Sulcospira testudinaria displayed densities of 1 ind/m2 at Point I (uniform), 79 ind/m2 at Point II (grouping), and 32 ind/m2 at Point III (random). Telescopium telescopium showed densities of 2 ind/m2 at Point I (uniform) and 1 ind/m2 at Point III (random).
In conclusion, the biodiversity of mollusks within mangrove forest ecosystems in the coastal area of Kalangan, Central Tapanuli Regency, is assessed to be of low value. Consequently, concerted efforts are warranted to preserve these ecosystems to maintain ecological balance and ensure the availability of germplasm for future generations.
Source:
コメント