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Gastropod Diversity in Pacar Pucang Laban Beach Tulungagung Regency

Introduction

Gastropod diversity in pacar pucang laban beach tulungagung regency. Discover the rich gastropod diversity at Pacar Pucang Laban Beach, Tulungagung. This study identified 18 species (14 families) and their abundance, revealing key environmental influences.

Abstract

Tulungagung is a city that has a variety of beautiful beaches, one of which is Pacar beach. The condition of the beach which is still natural and clean makes this beach inhabited by a wide variety of marine biota, one of which is gastropods. The purpose of this study was to determine the diversity and relative abundance of Gastropods and the environmental conditions that affect Gastropods at Pacar Beach Pucang Laban, Tulungagung. Sampling used the transect method, by placing three transect lines. For each transect line was placed three square plots measuring 1x1 m2 each in each intertidal. Gastropods taken were gastropods that were found in each squared plot and in the substrate to a depth of 5 cm. The results of this study found 18 species belonging to 14 families. The results of the diversity obtained were based on the Shanon Wiener indeks are 2.461, which was dominated by the abundance of gastropods Clanculus atropurpureus and Conus (Lividoconus) lividus. The highest relative abundance came from the Trochidae family, Clanculus atropurpureus species of 20.97%, followed by the species Conus (Lividoconus) lividus from the Conidae family with a relative abundance of 17.74%.

Review

The study, "Gastropod Diversity in Pacar Pucang Laban Beach Tulungagung Regency," presents a valuable baseline assessment of marine mollusc biodiversity in a coastal area described as natural and clean. The research effectively aimed to quantify gastropod diversity and relative abundance, alongside investigating the environmental conditions influencing these communities. The identification of 18 species across 14 families, coupled with a Shannon-Wiener diversity index of 2.461, provides important foundational data for understanding the ecological health and species composition of Pacar Beach. This type of regional biodiversity inventory is crucial for future conservation strategies and environmental monitoring efforts in the area. Methodologically, the study employed a systematic transect-plot sampling approach, utilizing three transect lines, each containing three 1x1 m² square plots within the intertidal zone. The collection of gastropods from both the surface and a 5 cm depth within the substrate indicates a thorough attempt to capture both epifaunal and shallow infaunal species. The analysis focused on calculating the Shannon-Wiener index and determining relative abundance, revealing *Clanculus atropurpureus* (Trochidae, 20.97%) and *Conus (Lividoconus) lividus* (Conidae, 17.74%) as the most dominant species. While the abstract states an investigation into environmental conditions, a detailed account of these parameters and their direct correlation to gastropod distribution would be essential for the full paper. The findings contribute significantly to the current understanding of marine invertebrate communities in the Tulungagung region, offering a snapshot of gastropod diversity at Pacar Beach. The moderate diversity index and the identified dominant species suggest particular ecological niches or environmental pressures that favor these groups. To enhance the impact of this work, the full manuscript should elaborate on the specific environmental variables measured and explicitly link them to the observed patterns of gastropod diversity and abundance. Future research could also benefit from exploring temporal variations in gastropod communities and conducting comparative studies with other coastal habitats to provide a broader ecological perspective. This study provides a strong foundation for ongoing ecological research and conservation planning in the area.

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