Study of bivalvia habitat in the mangrove area of Aceh Jaya District, Aceh Province

Abstract

One of the biota that utilizes the mangrove ecosystem as its habitat is a group of Bivalvia belonging to the Phylum Mollusca Class Pelecypoda (Bivalvia). Shellfish have relatively high economic and nutritional value, so that the collection of shellfish in Aceh Jaya District continues. The research was conducted to study the biological components, analyze the habitat preferences, and management patterns of shellfish in the mangrove area of Aceh Jaya Regency. The research was conducted by using purposive sampling method, by determining 12 stations in 6 districts. Shellfish samples were taken three times with an interval of 15 days. The results found 5 species of shellfish with a dominance index of 0.002 to 0.255 with a low dominance level. The frequency of the presence of shellfish species is very rare (accidental) to rare (constant). The lowest presence level was Centrocardita rosulenta with a value of 8.33% and the highest was Sinanodonta woodiana with a value of 58.33. Habitat preference Sinanodonta woodiana has a salinity range between 3-7ppt and clay soil texture class, while Geloina habitat preference likes salinity with a range of 12 to 25 ppt with sand, loamy sand and sandy loam soil texture classes.

An alarming tendency towards freshwater mussel misidentification in scientific works may bias endangered and invasive species management

“…In the northern part of Sumatra (Aceh Province), a group of researchers studied the habitat characteristics of bivalve molluscs in a downstream (tidal) section of a river, with a special focus on mangroves (Heriansyah et al, 2020; Hermi et al, 2021). Among typical estuarine species, the team discovered what they thought was a population of S. woodiana .…”

“…In our opinion, this tendency may adversely affect conservation efforts for endangered taxa and the management of invasive species that are necessary to reverse biodiversity losses (Harper et al, 2021). For example, it was suggested that S. woodiana is a dominant and frequently occurring bivalve species in mangrove areas of North Sumatra within a salinity range of 3-15 ppt (Hermi et al, 2021) and 0-7 ppt (Heriansyah et al, 2020). Based on these observations, the authors conclude that S. woodiana is a euryhaline species, as are many other bivalves.…”

Morphometric composition analysis of Sinanodonta woodiana based on depth stratification in Tributaries Meureubo West Aceh

“…Sinanodonta woodiana atau Anodonta woodiana (Gabka et al, 2007) merupakan salah jenis kerang dari filum moluska kelas bibalvia, (Heriansyah et al, 2020;Hermi, 2020;Mursawal et al, 2022). Kerang ini termasuk dalam biota benthos atau hewan yang hidup pada dasar perairan (Hermi et al, 2021;Ramadhaniaty et al, 2021;Sarong et al, 2022) .…”

Heavy metal contamination of Hg and Pb in water, sediment and Violet Batissa (Batissa violacea Lamark, 1818) meat in Teunom River, Aceh Jaya Regency, Indonesia

“…Several studies on clams in Indonesia have been reported, including the distribution and diversity in the intertidal zone in Gresik Regency (Zarkasyi et al, 2016), the Lapindo Mud disposal area (Insafitri, 2010), Waemulang beach (Samson et al, 2020), Seagrass ecosystem in the waters of Jepara (Riniatsih and Widianingsih, 2007). Meanwhile, several studies of clams that have been carried out in Aceh include diversity, habitat characteristics and community structure in the mangrove ecosystem of Kampung Jawa Banda Aceh (Ramadhaniaty et al, 2020), coastal areas of Aceh Jaya Regency (Hermi et al, 2021), and coastal areas Teluk Nibung, Pulau Banyak District, Aceh Singkil Regency (Syahputra et al, 2017). However, the safety of clams as food and its ecology (water and sediment) has never been carried out in the Teunom River so that it has a high urgency level.…”