Biodiversity of intertidal mollusks in Surigao City, Philippines

Q4 Immunology and Microbiology
Mark Anthony T. Bangao, E. A. Borja, Romel C. Mutya
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Abstract

Intertidal zones are crucial ecological interfaces, but there is a lack of comprehensive studies on mollusk communities in Surigao City, Philippines. This research aimed to assess intertidal mollusk profiles, including species density, diversity, evenness, and richness, addressing a knowledge gap in regional mollusk biodiversity. Using a belt transect quadrat method in three sampling areas during 2021, the study employed a descriptive correlation design to investigate relationships between mollusk profiles and seawater physico-chemical parameters (conductivity, dissolved oxygen, pH, salinity, and temperature). In Surigao City's Day-asan, Hikdop Island, and Sibale, 44 gastropod species (19 families) and 11 bivalve species (9 families) were identified. Conidae and Strombidae families dominated. Average seawater parameters were conductivity 51.33, dissolved oxygen 7.45, pH 7.84, salinity 32, and temperature 28.52. Day-asan exhibited the highest species count (49), followed by Hikdop Island (42) and Sibale Island (37). Hikdop Island had the highest species density and evenness, Day-asan had the highest species diversity index, and Sibale Island had the highest species richness. Mollusk profiles showed no significant differences between sampling areas, and a strong negative correlation between pH and species evenness was observed. Surigao City displayed diverse mollusk biodiversity, but a declining trend in diversity indices was noted. This study fills a critical knowledge gap in understanding mollusk community dynamics, providing essential baseline data for future conservation and management strategies in the region, while also shedding light on the impact of environmental factors on intertidal mollusk populations in Surigao City.  
菲律宾苏里高市潮间带软体动物的生物多样性
潮间带是重要的生态界面,但目前缺乏对菲律宾苏里高市软体动物群落的全面研究。本研究旨在评估潮间带软体动物的概况,包括物种密度、多样性、均匀度和丰富度,以填补该地区软体动物生物多样性方面的知识空白。该研究于 2021 年在三个取样区采用带状横断面四分法,采用描述性相关设计来研究软体动物概况与海水理化参数(电导率、溶解氧、pH 值、盐度和温度)之间的关系。在苏里高市的Day-asan、Hikdop岛和Sibale,发现了44个腹足类物种(19科)和11个双壳类物种(9科)。其中以腹足纲和双壳纲为主。海水平均参数为电导率 51.33、溶解氧 7.45、pH 值 7.84、盐度 32 和温度 28.52。大亚山的物种数最多(49 个),其次是希克多普岛(42 个)和西巴莱岛(37 个)。希克多普岛的物种密度和均匀度最高,大亚山的物种多样性指数最高,西巴勒岛的物种丰富度最高。软体动物概况显示,不同取样区域之间没有明显差异,pH 值与物种均匀度之间呈强负相关。苏里高市的软体动物生物多样性多样,但多样性指数呈下降趋势。这项研究填补了在了解软体动物群落动态方面的一个重要知识空白,为该地区未来的保护和管理策略提供了重要的基线数据,同时也揭示了环境因素对苏里高市潮间带软体动物种群的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Applied and Natural Science
Journal of Applied and Natural Science Immunology and Microbiology-Immunology and Microbiology (all)
CiteScore
0.80
自引率
0.00%
发文量
168
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