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Journal : Arborescent Journal

Struktur Komunitas Plankton Di Perairan Gosong Tiaka Kabupaten Morowali Provinsi Sulawesi Tengah Mansyur, Kasim; Tis’in, Tis’in; Safir, Muhammad
Arborescent Journal Vol 1 No 3 (2024): September
Publisher : Universitas Madako Tolitoli

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56630/arj.v1i3.730

Abstract

Plankton are important organisms in aquatic ecosystems including marine ecosystems because of their large contribution to primary productivity and consumer abundance. The role of plankton as an important component in maintaining the balance of aquatic ecosystems and providing fishery resources that benefit the surrounding community is the basis for research on the condition of plankton in the waters of Gosong Tiaka. This study aims to assess the species composition and ecological index of plankton in the location. The research location was divided into 5 stations, namely the western part of Gosong Tiaka, northwest of Gosong Tiaka, southwest of Gosong Tiaka and northeast of Gosong Tiaka. The results showed that there were 6 phytoplankton classes and 8 zooplankton classes in the waters of Gosong Tiaka. The highest number of species for phytoplankton and zooplankton groups were found in the Bacillariophyceae class (9 species) and Copepoda class (3 species), respectively. While the highest abundance of phytoplankton and zooplankton was obtained in Chaetocerus sp. (Bacillariophyceae class) and Temora sp. (Copepoda class), respectively. This indicates that plankton from the Bacillariophyceae and copepod classes play a very important role in the study site. Based on the ecological index assessment, plankton diversity is in the medium assessment range, which means that the condition of the aquatic environment in the water location is in the medium assessment range (not under heavy environmental pressure). The plankton community in these waters is in a stable condition, indicated by the absence of dominating species.
Struktur Komunitas Mangrove Di Lapangan Senoro, Kabupaten Banggai, Sulawesi Tengah Tis'in, Musayyadah; Mansyur, Kasim; Safir, Muhammad; Artha, Shanti Nata; Nurdin, Enrico Putra; Maulidiansa, Clara
Arborescent Journal Vol 2 No 2 (2025): Mei
Publisher : Universitas Madako Tolitoli

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56630/arj.v2i2.976

Abstract

Mangrove ecosystems provide a variety of ecosystem services, making mangroves an important/vital ecosystem in coastal areas. Mangrove ecosystems provide abundant fishery resources, supporting food security and improving the economy of the community. This study aims to examine the structure of mangrove communities in the waters of Lapangan Senoro, which is a Mining Concession Area (MCA) operated by JOB Pertamina-Medco E&P Tomori Sulawesi (JOB Tomori). Mangrove data collection was conducted using 10 m x 10 m transects at two stations representing natural mangrove communities and rehabilitated mangroves. The results of the study indicate that there are 10 mangrove species at the study site, dominated by Rhizopora apiculata. The diversity of mangroves at the study site, both those representing natural mangrove communities and those resulting from rehabilitation, falls into the “moderate” category, meaning that the mangrove communities have a fairly balanced level of complexity. Based on the INP value, the R. apiculata species plays the most important role in the ecosystem. The density of mangroves at Senoro Field is categorized as good/very dense.