Mega Sari Apriniarti
Universitas Muhammadiyah Bengkulu, Indonesia

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Bivalvia Community Structure in The Ecosystem of Jenggalu ‎Mangrove Tourism Park, Bengkulu Province ‎ Kayla Dwi Hasnatuti; Pariyanto Pariyanto; Mega Sari Apriniarti
ISEJ : Indonesian Science Education Journal Vol. 7 No. 2 (2026): February-May
Publisher : Yayasan Darussalam Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62159/isej.v7i2.2007

Abstract

Mangrove ecosystems are important habitats for various benthic organisms, including bivalves, which play a role in maintaining the ecological balance of aquatic environments. The Jenggalu Mangrove Forest Tourism Park in Bengkulu City has high potential for biodiversity, but information on the structure of the bivalve community in this area is still limited. This study aims to determine the structure of the bivalve community, including species composition, abundance, and environmental conditions that influence their existence in the Jenggalu mangrove ecosystem. The study was conducted using a survey method with direct sampling techniques at several observation points in the mangrove area. Each bivalve individual found was then identified based on morphological characteristics, counted, and analysed for community structure using ecological indices such as diversity, evenness, and dominance. The results showed that the bivalve community in the Jenggalu mangrove area consisted of several species with different abundance levels at each observation location. The diversity index value was in the moderate category, indicating that environmental conditions were still sufficiently supportive of bivalve life. The relatively stable evenness value indicated a fairly even distribution of individuals between species, while the low dominance value indicated that no species was overly dominant. The results of this study indicate that the mangrove ecosystem in this area still has environmental conditions that are sufficient to support bivalve life. This information is expected to form the basis for efforts to manage and conserve the mangrove ecosystem and preserve the diversity of aquatic biota in the area.
Morphometric Analysis of Anura in Rajolelo Forest Park ‎Bengkulu Province Reska Ayu Muslimah; Mega Sari Apriniarti; Kasmiruddin Kasmiruddin
ISEJ : Indonesian Science Education Journal Vol. 7 No. 2 (2026): February-May
Publisher : Yayasan Darussalam Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62159/isej.v7i2.2010

Abstract

This study aims to analyze the morphometric characteristics of Anura found in Rajolelo Forest Park, Central Bengkulu. Data collection was conducted from November 2025 to January 2026 using the Visual Encounter Survey (VES) method in two habitat types, namely secondary forest and lakeshore. Each individual found was identified and measured using 13 morphometric characters with the help of a caliper. The results showed that the Anura community found consisted of three families, namely Dicroglossidae, Ranidae, and Rhacophoridae, with five species and a total of 20 individuals. Morphometric analysis showed that there were variations in body size and limb proportions between species related to habitat differences. Species found in water tend to have larger body sizes, while species living in vegetation or secondary forests have longer limbs that support the ability to jump and move in vegetation. Thus, morphometric variations in Anura indicate morphological adaptations to different habitat conditions.