Claim Missing Document
Check
Articles

Found 2 Documents
Search

Population Density and Distribution Pattern of Golden Apple Snail (Pomacea canaliculata L.) in the Rice Field Ecosystem Sinta Sinta; Sutrisnawati Sutrisnawati; Manap Trianto; Masrianih Masrianih; Rafiqah Rafiqah; Fatmah Dhafir
Biology, Medicine, & Natural Product Chemistry Vol 15, No 1 (2026)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2026.151.1121-1127

Abstract

The golden apple snail (Pomacea canaliculata) is a freshwater mollusc species commonly found in rice field ecosystems and is recognized as one of the major pests of rice crops. This species possesses a high adaptive capacity and a rapid reproductive rate, allowing its population to increase rapidly and cause significant damage to rice plants. Nevertheless, the golden apple snail also has ecological roles and potential benefits, including serving as an alternative feed source for livestock and fish, as well as contributing to the decomposition of organic matter in aquatic environments. This study aimed to analyze the population density and distribution pattern of the golden apple snail in the rice fields of Dolago Padang Village, South Parigi District. The research employed a quantitative descriptive approach using a field survey method. Data were collected using a quadrat sampling technique with plot sizes of 2 × 2 m established at three different observation stations. The number of golden apple snail individuals within each plot was counted directly and subsequently analyzed to determine population density and distribution patterns using the Morisita Index. In addition, environmental parameters, including water temperature and pH, were measured. The results showed that a total of 90 golden apple snail individuals were recorded during the study. Population density ranged from 1 to 2 individuals/m², which was categorized as moderate. The distribution pattern of the golden apple snail at all observation stations was classified as uniform, as indicated by Morisita Index values below 1 (Id < 1). Environmental conditions, with temperatures ranging from 27–30°C and pH values between 6.5 and 7.2, were within the optimal range supporting the presence and development of the golden apple snail.
Nest Associated Mites (Acari: Winterschmidtiidae) of Stingless Bee Tetragonula fuscobalteata in Central Sulawesi, Indonesia Nurly Maftukhah; I Made Budiarsa; Manap Trianto; Masrianih Masrianih; Rafiqah Rafiqah; Fatmah Dhafir
Biology, Medicine, & Natural Product Chemistry Vol 15, No 1 (2026)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2026.151.1265-1271

Abstract

Stingless bees are essential pollinators in tropical ecosystems and play an important role in sustaining biodiversity and agricultural productivity. In Central Sulawesi, Indonesia, Tetragonula fuscobalteata is widely cultivated in small-scale meliponiculture systems. However, information regarding mites associated with its nests remains limited. This study aimed to identify and describe nest-associated mites found in T. fuscobalteata colonies. The research was conducted in Dolago Village, Parigi Moutong Regency, Central Sulawesi. Nest samples were collected from five active colonies. Mites were observed under a stereo microscope, collected using a fine brush, and mounted on slides with polyvinyl alcohol. Identification was based on morphological characteristics using standard taxonomic keys, and morphometric measurements were obtained using Image Raster 3.0. All specimens were identified as deutonymphs of the genus Saproglyphus (Acari: Winterschmidtiidae). Mites were found in storage pots and cerumen structures but were absent from brood cells. The deutonymphs exhibited a well-developed sucker plate, reduced chelicerae, and fused coxae III, indicating phoretic adaptation. The mean body length was 192.72 ± 22.14 µm and width was 145.78 ± 12.62 µm. These findings provide baseline data on mite associations in T. fuscobalteata nests and contribute to understanding arthropod interactions in meliponiculture systems.