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Biodiversity of Mangrove Brachyuran Crabs of Family Ocypodidae and Sesarmidae in Koto XI Tarusan District, West Sumatera, Indonesia Kamal, Eni; Yuspardianto; Wulandari, Dwieke Putri; Fitriyani; Lubis, Amelia Sriwahyuni
HAYATI Journal of Biosciences Vol. 31 No. 3 (2024): May 2024
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.31.3.507-516

Abstract

The Mangrove ecosystem is an ecosystem that is around the edge of the coast and many organisms live in this ecosystem, one of them is crabs. The crabs that are often found are deposit crabs from the Ocypodidae and Sesarmidae families that act as balancers in the mangrove ecosystem. This study aimed to analyze species, diversity, evenness, and dominance in the mangrove vegetation area of Koto XI Tarusan District, West Sumatera, Indonesia. The method used is the descriptive method. The biodiversity of brachyuran crabs’ families, Ocypodidae and Sesarmidae, was analyzed with the Shannon-Wiener index (H’). Four indices were calculated for crabs Ocypodidae and Sesarmidae: species identification, Shannon-wiener (H’) diversity, evenness, and dominance indices. The results showed that there were six species of deposited crabs from the Ocypodidae and Sesarmidae families, namely Uca bellator, U. rosea, Perisesarma eumolpe, P. plicatum, Sarmatium germaimi, and Sesarma curoense. The most abundant species (Di) came from the family Sesarmidae. However, for all stations, diversity (H') has a value that is in the medium category, and evenness (E) is in the high category at each station. The dominance (D) obtained a value categorized as low at each observation station. The condition of environmental parameters in the mangrove vegetation area is included in the category of a good environment. It is still within normal limits for the crabs of the Ocypodidae and Sesarmidae families to live. Two substrate types are found in each observation path: muddy and sandy mud.
Rehabilitasi Sebagai Upaya Pelesterian Terumbu Karang di Wilayah Konservasi Perairan Indonesia Arungla’bi, Yora; Kamal, Eni; Damanhuri, Harfiandri; Tebay, Selvi; Wulandari, Dwieke Putri
Jurnal Sumberdaya Akuatik Indopasifik Vol 9 No 2 (2025): Mei
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46252/jsai-fpik-unipa.2025.Vol.9.No.2.495

Abstract

Coral reef ecosystems are vulnerable to damage. This ecosystem is found in tropical and subtropical seas and consists of reefs (calcareous structures) derived from coral animals and other biota. Considering these issues, efforts are needed to find other ways to enhance the exploration of marine resources without causing damage or increasing environmental productivity. This research employs the process of literature review. The results of article searches in the identified databases show that there are various factors that cause damage to the coastal coral reef ecosystem. There are two human (anthropogenic) factors, including the dumping of garbage into the sea, the use of destructive fishing tools, the mining of corals for consumption, and the temperature, brightness, and predators of coral. The damage to the coral reef ecosystem is caused by the human factor (80.98%) compared to the natural factor (58.09%). Addressing this problem, coral reefs in Indonesia have been saved through rehabilitation and conservation using techniques such as spider web transplantation and hybrid shelves and cor, as well as developing CMRIS (Coral Reef Management Information System) and COREMAP (Coral Reef Rehabilitation and Management Programme) as technology systems.