HAYATI Journal of Biosciences
Vol. 31 No. 1 (2024): January 2024

Diversity of Harvested Gastropods in Guang-Guang, Mati City, Davao Oriental, Philippines

Imee S. Maynawang (Fisheries Catch Assessment Project, Davao Oriental State University, Mati City, Davao Oriental, Philippines. College of Marine and Allied Sciences (CMAS), Mindanao State University-Naawan, Naawan, Misamis Oriental, Philippines)
Edison D Macusi (Faculty of Agriculture and Life Sciences, Davao Oriental State University, Mati City, Davao Oriental, Philippines)
Nur Fadli (Faculty of Marine and Fisheries, Universitas Syiah Kuala, Banda Aceh, Indonesia)
Ivy M. Nallos (Faculty of Agriculture and Life Sciences, Davao Oriental State University, Mati City, Davao Oriental, Philippines. Tuna Traceability Project, University of the Philippines Mindanao, Davao City, Philippines)



Article Info

Publish Date
31 Oct 2023

Abstract

Gastropods are a highly abundant group of mollusks in the marine environment. Marine gastropods primarily function as prey for other animals, grazers which help recycle nutrients and increase bioturbation activities in the marine ecosystem. Edible gastropods are significant to the economy of coastal communities. However, overexploitation leads to harming the population of marine gastropods. The study aimed to determine the diversity of gastropods harvested at Guang-guang, Mati City, Davao Oriental. It also assessed the abundance of the identified gastropods in the area. This study used purposive sampling to enroll gleaners (N = 30) who collected shells and monitored their gastropod harvest. The harvested gastropods were segregated, counted, and identified with the help of gleaners. A total of ten gastropod species were identified from the family of Strombidae, Conidae, Neritidae, Cypraeidae, and Turbinidae. The most abundant group after harvest was Canarium urceus, with a relative abundance of 67%, followed by Ilyanassa obsoleta, with 22%. However, the least harvested species was Nerita, with a relative abundance of 0.18%. The findings revealed that the harvested gastropods in Guang-guang have a diversity index of 0.99, indicating a low diversity of gastropods in the area. This low diversity could mean the area experienced overexploitation through time as gleaners have heavily harvested gastropods. With that, it is highly recommended that conservation should be prioritized to preserve the seashells.

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Journal Info

Abbrev

hayati

Publisher

Subject

Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

Description

HAYATI Journal of Biosciences (HAYATI J Biosci) publishes articles and short communication in tropical bioscience fields such as development, biotechnology, biodiversity and environmental issues. HAYATI J Biosci covers wide range of all life forms topics including virus, microbes, fungi, plants, ...