Diversity of gastropods as bioindicator of the coastal waters of Inner Ambon Bay

Abstract

The beach in Inner Ambon Bay is used by coastal communities to carry out various activities including household waste disposal, fishing activities and tourism. These activities cause the entry of waste into water bodies resulting in a decrease of water quality. This will lead to pollution on the coast if left unchecked. One of the resources living on the coast is gastropods which are generally able to describe waters conditions, so their presence can be used as an indicator for determining water quality. This study aims to determine the diversity of gastropods and the conditions of Halong coastal waters. This research was conducted in 2022 on the coast of Halong waters. Gastropods were collected using the belt transect method with distance between transects is 50 m. Gastropods collected were identified morphologically using standard literature book. Analysis was conducted to determine species density and ecological index of gastropods. The condition of the coastal waters of Halong was determined using STORET method and ABC curve method. The results showed that gastropods in the coastal waters of Halong consist of 3 orders, 13 families, 16 genera and 28 species with the highest density belongs to Cortica herbs. Diversity and evenness of gastropod in the area can be categorized as moderate with low dominance. Analysis of physical, chemical and biological parameter indicate that coastal waters of Halong was moderately polluted.

Checklist of Mangrove Snails (Mollusca: Gastropoda) in the Coastal of Sungai Nyirih Village West Kalimantan

“…Secara ekologis, gastropoda berperan penting dalam rantai makanan, sebagai herbivora, karnivora, detritivora, deposit dan suspension feeders, filter feeder, serta predator (Susintowati et al, 2019). Selain itu, gastropoda juga berperan penting sebagai bioindikator kualitas perairan (Supusepa et al, 2023;Farid et al, 2023) karena tingginya kemampuan adaptasi terhadap kondisi lingkungan yang berubah secara ekstrim (Jefri et al, 2021;Anggraini et al, 2021). (Safitri et al, 2023), Desa Bakau (Sofiana et al, 2023), dan Desa Sentebang dengan kelimpahan 9 ind/m 2 (Niko et al, 2020).…”

Kemelimpahan Spesies Gastropoda Laut di Zona Intertidal Negeri Asilulu, Maluku Tengah

“…Hal ini disebabkan kondisi substrat keras merupakan tempat yang ideal untuk penempelan gastropoda, dan adanya mikro habitat sebagai tempat berlindung dari kekeringan (Geiger, 2006;Levinton, 2021). Berbagai penelitian tentang gastropoda di Pulau Ambon telah dipublikasikan, diantaranya di Negeri Rutong ( (Haumahu & Uneputty, 2022a), zona intertidal Pulau Ambon (Suli, Hutumuri, Rutong, Hatu dan Hitu) (Haumahu & Uneputty, 2022b), perairan pantai Halong (Haumahu, Lokollo, et al, 2023), perairan pantai Latuhalat dan Waitatiri (Rumahlatu & Leiwakabessy, 2017), Teluk Baguala (Supusepa & Hulopi, 2018), perairan Negeri Suli (Supusepa, 2018), Teluk Ambon Dalam (Supusepa et al, 2023). Namun keberadaan gastropoda di perairan pantai Asilulu belum diketahui.…”

Diversity of Gastropods in the Mangrove Area of Desa Bakau Sambas Regency

“…Jenis yang sering dijumpai, antara lain Cassidula, Ellobium (Safitri et al, 2023), Nerita, Cerithidea, Strombus (Atnasari et al, 2020, Neritina, Chicoreus, dan Littoraria (Safitri et al, 2023). Gastropoda memiliki kemampuan adaptasi tinggi terhadap perubahan lingkungan yang ekstrim, sehingga dapat berperan sebagai bioindikator di suatu lingkungan perairan (Supusepa et al, 2023).…”