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Health Status of Seagrass Beds in Intertidal Zone of West Sekotong West Lombok Nurfitriani, Anisa; Candri, Dining Aidil; Astuti, Sri Puji; Ahyadi, Hilman; Suripto
Jurnal Penelitian Pendidikan IPA Vol 12 No 2 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i2.7605

Abstract

The coastal waters of West Sekotong possess significant potential in fisheries and marine resources. Seagrass is one of the key biotas contributing nutrients to support the fertility of surrounding waters. This study, conducted from May to July 2021 aimed to identify seagrass species and assess the health status of seagrass bed based on percentage cover and ecological indices. The research method used was purposive sampling with three research stations and systematic random sampling with transects. Based on the research that has been conducted, the following results were obtained seven seagrass species from two families. Hydrocharitaceae families (Enhalus acoroides, Thalassia hemprichii, Halophila ovalis, Halophila minor) and Cymodoceaceae families (Cymodocea rotundata, Cymodocea serrulata, Halodule pinifolia). The highest species density was H. pinifolia (119.47 ind/m²), with the highest important value index at station 1 (H. pinifolia 89%), station 2 (T. hemprichii 205%), and station 3 (E. acoroides 300%). Station 1 had the highest diversity and uninformity index, while station 3 was dominated by single species. Seagrass cover ranged from 31–48.33%, indicating unhealthy conditions, although environmental parameters remained within suitable ranges for seagrass growth.
Sebaran jenis Fitoplankton pada Ekosistem Mangrove, Lamun dan Terumbu Karang di Perairan Sekotong Barat, Lombok Barat Mardiati, Aina Ul; Candri, Dining Aidil; Astuti, Sri Puji; Ahyadi, Hilman; Sukiman
Jurnal Penelitian Pendidikan IPA Vol 11 No 1 (2025): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i1.8164

Abstract

The West Sekotong coastal area, which includes mangrove, seagrass, and coral reef ecosystems, is rich in marine biota, particularly phytoplankton communities. These ecosystems have been designated as conservation areas; however, increasing exploitation and disturbances in the region have impacted the presence and distribution of phytoplankton. This study aimed to assess the distribution, abundance, and species diversity of phytoplankton across these three ecosystems. Using purposive sampling, phytoplankton communities were identified microscopically, revealing a total of 742 phytoplankton cells, with 264 cells in the mangrove, 258 cells in seagrass, and 220 cells in the coral reef ecosystems. The class Bacillariophyceae dominated across all ecosystems. Specific species dominance varied, with Skeletonema costatum prevailing in mangroves, Nitzschia sigmoidhea in seagrass, and Coscinodiscus radiatus in coral reefs. The highest similarity index (35.89%) was observed between mangrove and seagrass ecosystems, while the lowest (30.87%) occurred between mangrove and coral reefs. The species richness index (R) was high in all ecosystems, ranging from 6.45 to 10.26, and dominance indices were low, indicating a balanced community structure. Environmental parameters measured across the ecosystems showed no significant differences and met the quality standards for marine biota as per KEPMENLH No 51 2004.
Co-Authors AA Ngurah Nara Kusuma Abdus Sabil, Abdus Adhawati, Laela Ahmad Jupri Ahmad Jupri Ahyadi, Himan AIDA MUSPIAH Aina Ul Mardiati Aina Ul Mardiati Amalia, Yunda Fitri Rizky Andri Frediansyah, Andri Arben Virgota Arben Virgota Arianti, Alya Artiningrum, Novitaa Tri Aulia Zahara, Asha Aulia, Nurul Waroatul Bagus Hakimi Baiq Farista Baiq Farista Baiq Farista Berliana, Cok Gea Derksen, Engelina Noer Soraya Destiana, Elvina Dewi, Saskia Septina Eka Prasedya Sunarwidhi Eka Sunarwidhi Prasedya Engelina Noer Soraya Evy Aryanti Farista, Baiq Fidyantini, Findi Galuh Tresnani Gusti Ngurah Eka Putra Haqiqi, Nirwana Hasanto, Rizki Primaditya Hidayat, Ismadi Dwi Saputra Hilman Ahayadi Hilman Ahyadi Hilman Ahyadi Hilman Ahyadi I Putu Bayu Putra Kastawan I Wayan Suana Ida Wayan Brahmanda Menu Wedham Iman, Zuhratul Immy Suci Rohyani Intan Pandini Irawan, Muhammad Rizki Putra Isnaini Marliana Kartini Ambarwati Kholidah, Baiq Maylina Kurniawan, Ali Laela Junnita Hidayati Laily Hunawatun Sani Lalu Japa, Lalu Lestari, Dinda Propita Lestari, Novidya Aulia Lia Mar’atus Sholeha Luh Putu Ayu Damayanti, Luh Putu Ayu M. Subandi Rahmani Mardiati, Aina Ul Martha, Eriko Thopan Muhammad Syach Maulad Ichfa Muhammad Syach Nuzul Firdauzy Munawaroh, Anggi Nurhardiyanti Murdani, Muhammad Taufiq Zulfikri Muspi’ah, Aida Ningrum, Audya Septria Novida Sari Novita Tri Artiningrum NOVITA TRI ARTININGRUM Nur Indah Julisaniah Nurfitriani, Anisa Nurhairani Nurhairani, Nurhairani Nurhayati, Nurhayati nurrijawati Nurrijawati, Nurrijawati nurulfadilah Pardede Shinta Trilestari Pazila, Baiq Dinda Aluh Putri Permatasari, Baiq Dewi Prasedya, Eka Sunarwidhi Pratiwi, Baiq Dwi Sekarjati Qoriasmadillah, Wanda Rabiatul Adawiyah Ramdhiani, Arsyka riandinata, selamet kurniawan Rindahmawati, Rika Rizki, Anis Syakiratur Rizkia Apriani Rosiyani, Amita Dwi Royani, Baiq Nurlatifa Saputri, Ferza Ayu Sasmitha, Yuan Sebastian Aviandhika Shofiana, Dwi Auliya Slamet Kurniawan Riandinata Sri Puji Astuti sri puji astuti Sukiman Sukiman Sukiman Sukmaraharja Aulia Rachman Tarigan Suripto Suryadi, Bambang Fajar Syahadatina, Rifqah Hashifah Syakiratur Rizki, Anis Thabrani, Rijal Tri Mulyaningsih Tri wahyu Setyaningrum Tri Wahyu Setyaningrum, Tri Wahyu Ulfaturrahmi, Martina Ulya Nisa Afifa Virgota, Arben Yuliadi Zamroni Yuliadi Zamroni Yuliadi Zamroni Zahara, Asha Aulia Zain, Baiq Kharisma Afrilia Putri Zuhraini