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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Biosfer: Jurnal Pendidikan Biologi Jurnal Biologi Tropis Jurnal Pengabdian Magister Pendidikan IPA Biota Jurnal Ilmiah Profesi Pendidikan Bioscientist : Jurnal Ilmiah Biologi LEARNING : Jurnal Inovasi Penelitian Pendidikan dan Pembelajaran Jurnal Pijar MIPA
SUYANTRI, ENI
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Environmental Science Immunology & microbiology Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Social Sciences

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Community Structure of Echinoderms at The Intertidal Zone of Serinting Beach Special Economic Zone of Mandalika Hidayat, Sugih Akbar; Bachtiar, Imam; Suyantri, Eni
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): Juli-September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i3.9400

Abstract

Serinting Beach, located within the Mandalika Special Economic Zone (SEZ), is an intertidal area with high biological potential for tourism. However, studies on its Echinodermata community remain limited. The existence of this community is crucial as an indicator of coastal ecosystem health and holds potential for developing educational ecotourism, such as reef walking tours. This research aims to analyze the species richness and composition of the Echinodermata community, along with its ecological indices (diversity, evenness, and dominance). Data was collected in March 2025 using the transect-quadrat method, employing three transects perpendicular to the coastline and 15 quadrats, each measuring 2 × 5 m². The study results revealed 21 Echinodermata species, consisting of 10 genera and 9 families from four classes: Asteroidea, Ophiuroidea, Echinoidea, and Holothuroidea. The community composition was dominated by Ophiocoma scolopendrina (43.90%), Echinometra mathaei (21.33%), and Echinometra sp. (16.77%). The diversity index (H') was 1.59; the evenness index (E) was 0.62; and the dominance index (D) was 0.28. Tripneustes gratilla populations were found in low numbers and are suspected to be under pressure due to traditional reef gleaning activities. The findings of this study are expected to serve as a basis for enviromental management and the development of educational tourism, like reef walking tours, in the intertidal zone of the Mandalika SEZ.
Coral Community Structure at The Intertidal Zone of Serinting Beach Special Economic Zone (SEZ) of Mandalika Ainiyawati, Yeni; Bachtiar, Imam; Suyantri, Eni
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): Juli-September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i3.9401

Abstract

Serinting Beach is located within the Special Economic Zone of Mandalika, where ongoing massive tourism facility development may impact the intertidal coral communities. The intertidal zone of Serinting Beach is also a primary location for reef gleaning, which impacts corals in the intertidal area. Considering that corals are the foundational components of reef ecosystems, the prospective development of this designated super-priority tourism area may exert significant impacts on the intertidal coral communities. This investigation aimed to delineate the coral community structure within the intertidal zone of Serinting Beach, situated in the Mandalika Special Economic Zone (SEZ). Sampling was executed via the transect-quadrat method. Measured variables encompassed coral life forms, genera, families, and the respective colony counts. The study identified 323 coral colonies distributed among 17 genera and 9 families. Compositions of three predominant genera were Heliopora 25.39%, Favites 24.77%, and Porites 22.91%. The Faviidae family exhibited the highest compositional abundance, contributing 37.15%, followed by Helioporidae 25.39% and Poritidae 23.53%. Furthermore, eight distinct coral life forms were documented in the intertidal zone, with massive coral representing the predominant form at 35.60%, followed by coral encrusting 26.01%, and blue coral 25.39%. Ecological indices indicated a moderate level of coral diversity (H'=1.98), accompanied by an unstable evenness index (E=0.70) and a low dominance index (C=0.19).
Mercury Analysis in Blood Clams (Anadara granosa) in EEA of The Bagek Kembar, West Lombok Sania, Neza Okta; Sedijani, Prapti; Suyantri, Eni
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): Juli-September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i3.9488

Abstract

Gold mining activities can cause environmental degradation and have negative impacts on human health. This study aimed to analyze mercury concentrations in blood cockles (Anadara granosa) in the Essential Ecosystem Area (EEA) of the Bagek Kembar Mangrove, Sekotong, West Lombok. Sampling was conducted using 10 x 10 meter quadrants, and the data were analyzed using a Cold Atomic Absorption Analyzer of Mercury (CAAAM). Based on the analysis results, mercury concentrations in the flesh of Anadara granosa were in the range of 0.0057 to 0.0394 mg/kg, with the highest average concentration recorded at the station closest to the tourist area (0.0357 mg/kg). Despite this, the mercury levels remain below the safety threshold established by National Agency of Drug and Food Control (BPOM) Regulation No. 9 of 2022, which is 1.0 mg/kg. Therefore, regular environmental monitoring and increased public awareness about the dangers of mercury use are strongly recommended tu support the long-term preservation of marine ecological system and safeguard the safety of seafood consumption. Future research is suggested to assess the safe daily intake limit of Anadara granosa for local communities based on the detected mercury levels, in order to evaluate potential health risks to consumers.
Estimation of Carbon Stock in Mangrove Seedlings and Sediment in EEA Bagek Kembar, West Lombok Pahrurrozi, Pahrurrozi; Hadiprayitno, Gito; Suyantri, Eni
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): Juli-September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i3.9797

Abstract

Mangrove are coastal ecosystems that play a crucial role in maintaining environmental stability, protecting shorelines, and providing essential habitats for diverse species of flora and fauna. Mangrove ecosystems also play a vital role in mitigating climate change by absorbing and storing atmospheric carbon. This study was conducted with the objective of estimate the carbon stock in mangrove seedlings and sediments within the Essential Ecosystem Area (EEA) of Bagek Kembar, Sekotong, West Lombok. Mangrove seedlings sampling was conducted using the destructive (harvesting) method and analyzed in accordance with the Indonesia National Standard (SNI), while mangrove sediments sampling was carried out using a corer and analyzed using the Loss on Ignition (LOI) method. The results showed that natural mangroves had seedlings carbon stock of 3.44 tons C/ha, whereas rehabilitated mangroves had seedlings carbon stock of 2.95 tons C/ha. Carbon stock at sediment in natural mangroves was 591.49 Mg/ha, and for sediments at rehabilitated mangroves was 575.39 Mg/ha. The average seedlings carbon stock in the EEA Bagek Kembar Sekotong West Lombok was 3.19 tons C/ha, while the average sediments carbon stock was 583.41 Mg/ha. These findings highlight the significant carbon storage potential of mangroves ecosystems, particulary in seedlings and sediments. Although mangrove seedling possess relatively small biomass, they make a meaningful contribution to future carbon stock.
Penguatan dan Pendampingan Guru SMAN 1 Sekotong dalam Implementasi Proyek Penguatan Profil Pelajar Pancasila Berbasis Potensi Ekowisata Mangrove Bagek Kembar Hadiprayitno, Gito; Suyantri, Eni; Wirajagat, Gde Cahyadi; Larasati, Sri Aprilia Nur; Manisa, Safariyanti
Jurnal Pengabdian Magister Pendidikan IPA Vol 8 No 3 (2025): Juli-September 2025
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v8i3.13128

Abstract

Guru yang ada di SMAN 1 Sekotong masih mengalami kesulitan dalam menentukan topik pembelajaran yang diintegrasikan dengan proyek pengutan profil pelajar Pancasila (P5). Karena itu dilakukan kegiatan pengabdian yang bertujuan untuk memperkuat kapasitas dan melakukan pendampingan pada guru yang ada di SMAN 1 Sekotong dalam mengimplementasikan P5 berbasis potensi ekowisata mangrove di kawasan Bagek Kembar. Penguatan kapasitas guru dilakukan melalui serangkaian kegiatan yaitu sosialisasi, pelatihan, dan pendampingan pada guru yang terdiri dari (1) Pengenalan potensi ekowisata mangrove Bagek Kembar (jenis mangrove, pembibitan, penanaman, dan pemeliharaan); (2) Pendampingan dalam penyusunan kurikulum P5 berbasis ekowisata; dan (3) Workshop penyusunan program kerja P5. Hasil kegiatan pengabdian menunjukkan bahwa pendampingan berperan penting untuk membantu guru memahami tahapan penyusunan kurikulum, mulai dari identifikasi kesiapan sekolah, pemilihan dimensi dan tema P5, hingga perancangan modul proyek yang sesuai dengan karakteristik siswa. Disamping itu, keberhasilan implementasi P5 sangat dipengaruhi oleh keterlibatan aktif guru sebagai fasilitator, dukungan kepala sekolah, serta kolaborasi dengan masyarakat sekitar.
Diversity of Molluscs (Gastropoda and Bivalve) associated with Mangrove species in Dondon Beach and Gerupuk Beach, Central Lombok Insani, Reginah Fhathonah; Syukur, Abdul; Suyantri, Eni
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i1.6614

Abstract

Mollusks are macrofauna found in mangrove environments. The aim of this research is to explain the association of mollusks with mangroves at Dondon Beach and Gerupuk Beach, Central Lombok. Furthermore, the research method uses transects and quadrants and determines transects using the purposive sampling method. Meanwhile, data analysis used descriptive statistics, the Shannon-Wienner diversity index, the Evenness uniformity index, the Simpson dominance index, and the Ludwig & Reynolds association index. Next, the relationship between mangroves and mollusks was analyzed using the Pearson correlation index. The results of this research found 2 mangrove species and 45 mollusk species at Dondon Beach, while 6 mangrove species and 21 mollusk species were found at Gerupuk Beach. Results of descriptive statistical analysis, Littorinidae was highest and Cardidae was lowest at Dondon Beach, Potamididae was highest and Muricidae was lowest at Gerupuk Beach. The mollusk species diversity index was the highest at station III Dondon Beach and 2.33 at station III Gerupuk Beach. The highest mollusk species uniformity index was 0.9 at station III Dondon Beach and 0.76 at station III Gerupuk Beach. The highest mollusk species dominance index was 0.12 at station II Dondon Beach and 0.16 at station II Gerupuk Beach. The relationship between mangroves and molluscs is based on Pearson correlation, at Dondon Beach, the r2 value = 0.9973 while at Gerupuk Beach, the r2 value = 0.2265. Mollusk and mangrove association types, 25 positive species and 17 negative species. Meanwhile, at Gerupuk Beach, 8 species had positive associations and 3 species had negative associations. The conclusion of this research is that the association between mollusks and mangroves is very strong at Dondon Beach and the correlation is weak at Gerupuk Beach.
The Morphometrics of Mangrove Crabs (Scylla serrata) in the Essential Ecosystem Area (KEE) of Bagek Kembar Mangrove Forest, Sekotong, West Lombok Diniah, Siti; Karnan, Karnan; Suyantri, Eni
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.7513

Abstract

The intensive harvesting of Mangrove Crabs (Scylla serrata) has led to a significant decline in the population density of Scylla serrata in mangrove areas. Overfishing has resulted in a decrease in both the number and size of individual Mangrove Crabs and has altered the structure and composition of the population. This research aims to understand the morphometric characteristics of Scylla serrata, which will help sustain the population and protect mangrove areas as the native habitat for Scylla serrata and other organisms. Therefore, this study contributes to conservation and sustainable management efforts to ensure biodiversity. This type of research is descriptive-exploratory and aims to identify and analyze the size variations of Scylla serrata. The study was conducted at four points in the Essential Ecosystem Area (EEA) of Bagek Kembar Mangrove Forest, Sekotong, West Lombok, in both natural and rehabilitated zones. The results of this study found that the ratio of female to male Mangrove Crabs is 36:32, with females being more dominant in number. The morphometric characteristics of Mangrove Crabs in the Bagek Kembar Essential Ecosystem Area showed relatively uniform sizes across all sampling points, but some characteristics such as dactyl length, weight, and dactyl width showed significant differences, which may be influenced by the physiological condition of Scylla serrata and habitat conditions.
Predation Intensity on the Brittle Star Ophiomastix annulosa on Serinting Beach of Lombok Island Al-Khulaifi, Fazza Firjatullah; Bachtiar, Imam; Khairuddin, Khairuddin; Suyantri, Eni
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i4.7822

Abstract

The Ophiuroid has an important role in intertidal area. Many scientific papers show predation (partial loss of arms) on Ophiuroid. Predators of the Ophiuroid include sea urchins, sea stars, demersal fish, shrimp, and crabs. Ophiuroid that have a larger disc diameter can prey on species that have a smaller disc diameter. This study aims to describe the predation intensity of the Ophiomastix annulosa using the cruising method and analyze the correlation between disc diameter and predation intensity at the Serinting Beach, Special Economic Zone (SEZ) of Mandalika. The results showed that disc diameter and predation intensity on O. annulosa varied greatly. The size of the disc diameter found ranged from 1.01-2.55 cm. Most disc diameters were found at 1.55-1.84 cm. A total of 45% of the sample brittle star experienced predation. Predation intensity was mostly found at loosing one arm. There was no correlation between O. annulosa disc diameter and predation intensity at Serinting Beach Mandalika.
Sediment Organic Carbon Stock at the Muara Gembong Mangrove Area of Bekasi, West Jawa Muazzasari, Fitra; Japa, Lalu; Suyantri, Eni
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i1.8568

Abstract

Mangrove ecosystems have a crucial role in absorbing and storing carbon, which contributes to controlling greenhouse gas emissions, especially carbon dioxide (CO₂) as the largest contributor to greenhouse gases. This research aims to measure sediment organic carbon stocks (SOCS) in the Muara Gembong mangrove area, Bekasi, West Java. Sediment samples were taken by purposive sampling from three locations with different mangrove characteristics, namely Station 1, Station 2 and Station 3. Samples were analyzed using the Loss on Ignition (LOI) method to determine the organic carbon content in the sediment. The research results showed that the highest carbon stock 669.95 tonnes/ha was found at Station 1, while the lowest carbon stock 2 501.78 tonnes/ha was at Station. In general, organic carbon content increases in deeper sediment layers. The dominant sediment texture is silty and silty loam, which supports carbon storage capacity. This research highlights the importance of preserving mangrove ecosystems as an effort to mitigate climate change through optimizing carbon storage in mangrove sediments.
Distribusi Horizontal Burung di Kawasan Ekowisata Mangrove Bagek Kembar, Lombok Barat Larasati, Sri Aprilia Nur; Hadiprayitno, Gito; Sedijani, Prapti; Suana, I Wayan; Suyantri, Eni
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 4 (2025): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i4.17300

Abstract

This study aims to determine the horizontal distribution of birds based on habitat type, namely fish ponds, rehabilitated mangroves, and natural mangroves, located in the Bagek Kembar Mangrove Area. Observations were conducted in June-July at the Bagek Kembar Mangrove Area, Sekotong. This research uses a transect method, following the paths found at three observation locations. Bird observations were conducted twice, in the morning (06:30-09:30 WITA) and evening (15:30-18:30 WITA). The results recorded 57 species, with the dominant habitat for finding bird species being the natural mangrove area, which has a fairly dense and diverse vegetation structure. The horizontal distribution of birds in the Bagek Kembar Mangrove Area is illustrated using CANOCO for Windows 4.5 with a PCA (Principal Component Analysis) diagram. This study concludes that bird diversity is higher in natural mangrove habitats compared to fishpond and rehabilitated mangrove habitats, making this area important for supporting conservation and the development of birdwatching ecotourism.
Co-Authors Abdul Syukur Adawiyah, Marosa Rabi’atul Adawiyah, Marosa Robi’atul Agil Al Idrus, Agil Al Agustini, Putu Linda Aini, Jannatul Ainiyawati, Yeni Al-Khulaifi, Fazza Firjatullah Alawiyah, Rita Alhafizin, M. Apriani, Fadhilah Ardila, Dinda Dwi Astuti, Julya Aulia Fitri, Aulia Azfani, Lalu Ahmad Azizah, Norma Baiq Sri Handayani Candra, Kiki Irafa Delphi, Syakila Gita DIDIK SANTOSO Didik Santoso Diniah, Siti Fadhillah, Falya Aura Firjatullah, Akhmad Faiz Gde Cahyadi Wirajagat Gito Hadiprayitno Gito Hadiprayitno Habibah HANDAYANI, BQ SRI Handayani, Bq. Sri Hatami, Muhamad Heru Setiawan Hidayat, Sugih Akbar Hidayat, X.Zardht Alex Hilmi, Masnayati I Wayan Mertha I WAYAN SUANA Ilhamdi, M. Liwa Ilhamdi, Mohammad Liwa Ilmi, Muhamad Yazid Mizanul Imam Bachtiar Imami, Vines Salsa Insani, Reginah Fhathonah Intan Putri Yasa Jamí’’yyah, Shafro’ Khuluq Karnan Karnan Khairuddin - Kurniawan, Ramdani Kusuma, Anindita SHM Lalu Japa, Lalu Larasati, Sri Aprilia Nur Leonia, Rizqy Aisyah Lestari, Tri Ayu Lianto M. Syazali Mabrur, Muh. Hijjul Manisa, Safariyanti MARDIANA Muazzasari, Fitra Nabila, Hesti Nanisfi, Maulidatin Nelva Rolina Niarni, Baiq Gina Amalia Pahrurrozi Pahrurrozi Pahrurrozi, Pahrurrozi Pebrianti, Hasita Permatasari, Dian Dwi PRAPTI SEDIJANI, PRAPTI Pujiana, Nita Purnamawati, Rena Putri, Hermaya Sura Putri, Rahmalia Qudraty, Harsa Naunik Riyadi, Ahmad Agus Ropidah, Risky Riyyatul Rudiana Safariyanti Manisa Sania, Neza Okta Seftiana, Irma Sesareny, Nadiya SETIAWAN , HERU Sri Aprilia Nur Larasati Sukma, Izza Melati Sunardi, Dwi Zainul Sur’atunisa, Dean Syalsabilla, Avira Pebrina Syazali, Muhammad Tri Ayu Lestari TRISTANTI Umami, Lia Utami, Ulya Febria Utani, Futri Wirajagad, Gde Cahyadi Wirajagat, Gde Cahyadi Yani, Leli Zarina Yudan Hermawan Zhahara, Sakila