Komunitas gastropoda pada ekosistem mangrove di Pulau Padaidori, Kabupaten Biak Numfor, Papua

IF 0.5 4区 地球科学 Q3 Earth and Planetary Sciences
Trisnawaty Rica Florentina Siahaan, Endriano Manalu, Setiawan Mangando, Fredy Christian Eldiester Dan, Yulianti Elisabet Demena, Frits N. Y. Rumbino, S. Leatemia, F. I. Saleh, Selvi Tebaiy, Nur Widiastuti, Emmanuel Manangkalangi
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引用次数: 0

Abstract

Komunitas gastropoda sangat penting sebagai komponen dalam rantai makanan dan dekomposisi di ekosistem mangrove. Penelitian ini bertujuan untuk mendeskripsikan struktur komunitas gastropoda (komposisi spesies, pola sebaran, kepadatan, dan indeks keanekaragaman) pada ekosistem mangrove di Pulau Padaidori, Kepulauan Padaido, Kabupaten Biak Numfor. Ada dua stasiun yang dipilih untuk dilakukan pengambilan sampel. Periode pengambilan sampel gastropoda berlangsung pada bulan Agustus-September 2021 dengan menggunakan metode garis transek dan kuadrat. Pengambilan sampel gastropoda dilakukan ketika kondisi air surut. Berdasarkan hasil penelitian diperoleh sebanyak 12 spesies gastropoda yang termasuk dalam enam famili (Cerithiidae, Ellobiidae, Littorinidae, Muricidae, Neritidae, dan Potamididae). Umumnya spesies ditemukan di substrat dasar dan akar vegetasi mangrove, kecuali Littoraria scabra yang ditemukan juga pada bagian batang dan daun mangrove. Kepadatan yang tinggi ditemukan pada spesies L. scabra (3,85-6,24 ind.m-2) dan Cerithium coralium (4,18-4,36 ind./m-2), sedangkan kepadatan untuk setiap stasiun, yaitu 12,73 ind.m-2 (stasiun 1) dan 9,97 ind.m-2 (stasiun 2). Pola persebaran spesies gastropoda umumnya mengelompok. Nilai indeks keanekaragaman, kemerataan, dan dominansi komunitas gastropoda di kedua stasiun yaitu 1,271-1,344, 0,579-0,646, dan 0,334-0,366. Kondisi ini mengambarkan bahwa komunitas gastropoda di kedua stasiun relatif stabil. Berbagai parameter dalam komunitas gastropoda ini bisa berubah karena gangguan dan aktivitas pemanfaatan. Oleh karena itu, informasi mengenai komunitas gastropoda ini dapat digunakan sebagai indikator dalam pemantauan perubahan kondisi ekosistem mangrove. The gastropod community is very important as a component in the food chain and decomposition in mangrove ecosystems. This study aims to describe the structure of the gastropod community (species composition, distribution pattern, density, and diversity index) in the mangrove ecosystem on Padaidori Island, Padaido Islands, Biak Numfor Regency. There were two stations selected for sampling. The sampling period for gastropods took place in August-September 2021 using the line transect and quadrat method. Sampling of gastropods was carried out at low tide. Results Based on the research, there were 12 gastropod species belonging to six families (Cerithiidae, Ellobiidae, Littorinidae, Muricidae, Neritidae, dan Potamididae). Generally, the species were found in the bottom substrate and roots of mangrove vegetation, except for Littoraria scabra which was also found on the stems and leaves of mangroves. High density was found in L. scabra (3.85-6.24 ind.m-2) and Cerithium coralium (4.18-4.36 ind./m-2), the density for each station was 12.73 ind.m-2 (station 1) and 9.97 ind.m-2 (station 2). The distribution pattern of gastropod species is generally clustered. The index of diversity, evenness, and dominance at the two stations was 1.271-1.344, 0.579-0.646, and 0.334-0.366. This condition illustrates that the gastropod community at both stations is relatively stable. Various parameters in this gastropod community can change due to disturbances and utilization activities. Therefore, this information about the gastropod community can be used as an indicator for monitoring changes in the condition of the mangrove ecosystem.
巴布亚Numphor Railway Cape Padaidori岛红树林生态系统中的腹足类群落
腹足类群落是红树林生态系统中食物链和分解的重要组成部分。本研究旨在描述Padaidori岛、Padaido岛、Numphoric Footwear红树林生态系统中腹足类群落的结构(物种组成、分布模式、密度和多样性指数)。选择了两个采样站。腹足类动物的采样期在2021年8月至9月之间,采用样带和方线法。腹足类动物的样本是在黑暗的水域条件下采集的。根据这项研究的结果,共衍生出六科12种腹足纲动物(Cerithiidae、Ellobidae、Littoridae、Muricidae、Neritidae和Potamidae)。一般来说,物种存在于红树林基质和植被根部,但也存在于红树林茎和叶中的粗糙小蠊除外。在L.scabra(3.85-6.24英寸.m-2)和Cerithium coralium(4.18-4.36英寸.m-2。常见腹足纲物种群的分布格局。两站腹足类群落的多样性、湿度和优势指数分别为1271-1344、0579-0646和0334-0366。这种情况表明,两个站点的腹足类群落相对稳定。由于破坏和开发活动,这种腹足类群落的各种参数可能会发生变化。因此,有关这种腹足类群落的信息可以作为监测红树林生态系统状况变化的指标。[UNK]腹足类群落作为红树林生态系统食物链和分解过程中的一个组成部分,非常重要。本研究旨在描述帕代多里岛、帕代多群岛、比亚克努姆富县红树林生态系统中腹足类群落的结构(物种组成、分布模式、密度和多样性指数)。选择了两个站点进行采样。腹足类动物的采样期为2021年8月至9月,采用样线和象限法。腹足类动物的采样是在退潮时进行的。结果共有12种腹足纲动物,隶属于6科(卷尾虫科、卷叶虫科、小腹虫科、鼠科、卷尾虫科丹蛛科)。一般来说,除了在红树林的茎和叶上发现的粗糙小蠊外,这些物种都在红树林植被的底部基质和根部发现。在L.scabra(3.85-6.24 ind.m-2)和Cerithium coralium(4.18-4.36 ind./m-2)中发现了高密度,每个站的密度分别为12.73 ind.m-2(1号站)和9.97 ind.m-2。腹足类物种的分布格局一般呈集群状。两个站点的多样性、均匀性和优势度指数分别为1.271-1.344、0.579-0.646和0.334-0.366。这种情况说明两个站点的腹足类群落相对稳定。这种腹足类群落中的各种参数可能会因干扰和利用活动而发生变化。因此,这些关于腹足类群落的信息可以作为监测红树林生态系统状况变化的指标。
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来源期刊
Journal of Marine Research
Journal of Marine Research 地学-海洋学
自引率
0.00%
发文量
1
审稿时长
3 months
期刊介绍: The Journal of Marine Research publishes peer-reviewed research articles covering a broad array of topics in physical, biological and chemical oceanography. Articles that deal with processes, as well as those that report significant observations, are welcome. In the area of biology, studies involving coupling between ecological and physical processes are preferred over those that report systematics. Authors benefit from thorough reviews of their manuscripts, where an attempt is made to maximize clarity. The time between submission and publication is kept to a minimum; there is no page charge.
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