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Journal : Jurnal Biologi Tropis

 1 
Keanekaragaman Spesies dan Zonasi Habitat Echinodermata di Perairan Pantai Semerang, Lombok Timur (Diversity of Species and Habitat Zonation of Echinoderm in Semerang Coastal Waters, East Lombok) Noar Muda Satyawan; Yusli Wardiatno; Rahmat Kurnia
Jurnal Biologi Tropis Jurnal Biologi Tropis. Vol.14 No. 2 Desember 2014
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (421.132 KB) | DOI: 10.29303/jbt.v13i1.66

Abstract

Research was conducted in order to determine the diversity of species and habitat zonation of Echinodermata in Semerang coastal waters East Lombok. The field survey was conducted using transects kuadrad and free collection during March to June 2013. Based on the results, in the Semerang Coast was found 26 species of Echinoderm which consist of Echinoidea (13 species), Asteroidea (7 species), Ophiuroidea (3 species ) and Holothuroidea (3 species). Echinoderms habitat in Semerang divided into 5 zones, consist of reef flat, sand, seagrass beds, rubble, and coral reefs. Diversity index values differ in each habitat. Shannon - Wiener index (Hꞌ) were largest on coral reef habitats (H ꞌ = 2.59 )and then followed by sand (H ꞌ = 2.30), rubble (H ꞌ = 2.17), seagrass (H ꞌ = 1, 93) and the reef flat (H ꞌ = 1.48). Greatest Evenness index was found in the sand habitat (E = 0.96) followed by a reef flat (E = 0.92), coral reefs (E = 0.86), rubble (E = 0.75) and seagrass beds (E = 0.67). the largest found Margalef Index (R), was found in coral reef habitats (R = 5.02) and then followed by rubble (R = 4.07), sand (R = 3.79), seagrass bed (R = 3.62) and reef flat (R = 1.41). Class of Echinoidea has found in all zones, Asteroidea and Holothuroidea not found on the reef flat zone while Ophiuroidea only found in the rubble and the coral reef zone.
KONDISI EKSISTING FAUNA MEGABENTHOS DI PERAIRAN LABUHAN PANDAN LOMBOK TIMUR PASCA GEMPA BUMI LOMBOK 7.0 SKALA RICHTER Noar Muda Satyawan; Novita Tri Atriningrum
Jurnal Biologi Tropis Vol. 19 No. 2 (2019): Juli - Desember
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v19i2.1303

Abstract

Abstrak : Gangguan eksternal pada ekosistem terumbu karang dapat terjadi secara alami ataupun karena aktifitas manusia yang menimbulkan perubahan fisik maupun ekologis. Perubahan ekologis dapat terlihat dari perubahan komposisi biota yang berasosiasi di dalamnya. Salah satu kelompok biota yang berasosiasi dengan terumbu karang adalah megabenthos. Tujuan dari penelitian ini adalah untk mengetahui kondisi eksisting fauna megabenthos pada ekosistem terumbu karang di perairan Labuhan Pandan Lombok Timur. Pengamatan dilakukan pada 5 stasiun yaitu Gili Bidara (BDR_01), Gili Kondo (KND_01), Gili Petagan 1 (PTG_01), Gili Petagan 2 (PTG_02), dan Gili Petagan 3 (PTG_03). Pengambilan data megabenthos dilakukan dengan metode Benthos Belt Transect (BBT). Hasil penelitian menunjukkan bahwa ditemukan 15 jenis megabenthos yang termasuk dalam 5 Phylum (Mollusca, Echinodermata, Chordata, Annelida, dan Platyhelminthes). Jumlah jenis tertinggi ditemukan pada phylum Echinodermata (10 jenis), kemudian diikuti oleh Mollusca (2 jenis), Chordata (1 jenis), Annelida (1 jenis), dan Platyhelminthes (1 jenis). Kepadatan megabenthos tertinggi ditemukan pada stasiun BDR_01 (10.571 ind/Ha), kemudian diikuti oleh stasiun KND_01 (10.214 ind/Ha), PTG_02 (9.857 ind/Ha), PTG_03 (8.429 ind/Ha) dan PTG_01 (1.714 ind/Ha). Keanekaragaman jenis tertingi ditemukan pada stasiun PTG_01 (H’=1,14), kemudian diikuti oleh BDR_01 (H’=0,76), KND_01 (H’=0,69), PTG_03 (H’=0,17) dan PTG_02 (H’=0,09). Hasil perhitungan indeks dominansi menunjukkan bahwa Didemnum molle (phylum Chordata)  ditemukan dominan pada seluruh stasiun pengamatan. Ditemukan juga jenis megabenthos pemangsa hewan karang yaitu Acanthaster planci pada stasiun PTG_03 serta Drupella sp. pada stasiun BDR_01, KND_01 dan PTG_02. Beberapa jenis megabenthos yang ditemukan dapat dijadikan bioindikator dalam pemantauan kesehatan ekosistem terumbu karang di Perairan Labuhan Pandan, Lombok Timur.Kata Kunci: Kondisi eksisting, Megabenthos, Gempa Bumi, Labuhan Pandan, Lombok TimurAbstract: External disturbance to the coral reef ecosystem occured by naturally or due to human activities that cause physical and ecological changes. Ecological changes could be seen from changes in the composition of the associated biota. One of the biota groups that associated with coral reefs were megabenthos. The purpose of this study were to determine the condition of the megabenthos fauna on coral reef ecosystems in the Labuhan Pandan waters, Eastern Lombok. Observations were made at 5 stations namely Gili Bidara (BDR_01), Gili Kondo (KND_01), Gili Petagan 1 (PTG_01), Gili Petagan 2 (PTG_02), and Gili Petagan 3 (PTG_03). Data of Megabenthos were collected by Benthos Belt Transect (BBT) method. The results showed that found 15 species of megabenthos included in 5 phylum (Mollusca, Echinoderm, Chordata, Annelida, and Platyhelminthes). The highest number of species were found in Echinoderms phylum (10 species), followed by Mollusca (2 species), Chordata (1 species), Annelida (1 species), and Platyhelminthes (1 species). The highest megabenthos density were found at BDR_01 station (10,571 ind / Ha), then followed by stations KND_01 (10,214 ind / Ha), PTG_02 (9,857 ind / Ha), PTG_03 (8,429 ind / Ha) and PTG_01 (1,714 ind / Ha). The highest species diversity were found at stations PTG_01 (H '= 1.14), then followed by BDR_01 (H' = 0.76), KND_01 (H '= 0.69), PTG_03 (H' = 0.17) and PTG_02 (H '= 0.09). The calculation result of dominance index shows that Didemnum molle (phylum Chordata) were found dominant in all observation stations. Also found species of coral predator Acanthaster planci at PTG_03 station and Drupella sp. at stations BDR_01, KND_01 and PTG_02. Several species of megabenthos can be used as bioindicators to monitoring of coral reef health in Labuhan Pandan Waters, East Lombok.Keywords: Existing conditions, megabenthos, earthquake, Labuhan Pandan, Eastern Lombok  
Benthic and Substrate Category Profile of Coral Reef in Labuan Pandan Waters, East Lombok Noar Muda Satyawan; Novita Tri Artiningrum
Jurnal Biologi Tropis Vol. 21 No. 1 (2021): Januari - April
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.v21i1.2448

Abstract

Coral reefs are unique ecosystems and only occur in the tropics area. One of the coral reef distribution in Indonesia is Lombok Island. The coral reefs in Lombok Island under degradation conditions caused by natural and human activities. The purpose of this study was to provide an overview of the benthic profile and substrate of coral reefs in the Labuhan Pandan waters, Eastern Lombok. Observations were conducted in March 2019 at 5 stations using the Underwater Photo Transect (UPT) method. The results showed that in general benthic coral reefs were dominated by Acropora Branching (35.40%) then followed by Soft Coral (20.89%), DCA (14.08%), Coral Foliose (11.07%), Rubble (7.36%) and Halimeda (2.77%). The highest percentage of Acropora Branching were found at KND_01 station (63.33%) followed by PTG_01 (49.13%), PTG_02 (31.18%), BDR_01 (21.73%), and PTG_03 (11.00%). The highest DCA percentage was found at BDR_01 station (29.27%) while Soft Coral was found dominant at PTG_02 (47.67%). Halimeda was only found in PTG_02 (1.87%) and PTG_03 (12.00%). Differences in the composition of benthic and substrate may be caused by differences in water conditions at each station.
Sustainability Status of The Ecological Dimension in The Fisheries Management of Bali Sardine (Sardinella lemuru Bleeker 1853) in The Bali Strait Noar Muda Satyawan; Yulia Estmirar Tanjov; Agus Purwanto; Made Mahendra Jaya; Liya Tri Khikmawati; Wulandari Sarasati; Muth Mainnah; Muh. Arkam Azis; Aditya Bramana
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): April-June
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.v23i2.4855

Abstract

Bali Strait included in the 573 Fisheries Management Area of Indonesia. One of the dominant commodities in these waters were Bali sardine (Sardinella lemuru). The dynamics of the lemuru fishery in the Bali Strait is fluctuating and tends to decrease. This study aims to determine the sustainability status of the ecological dimensions in the fisheries management of Bali sardine in the Bali Strait. Survey method were used in this study to obtain primary and secondary data related to ecological dimension attributes and then analyzed using the RAPFISH (Rapid Apraisal Technique for Fisheries) method. The results of this study indicate that the ecological dimension of lemuru fishery management in the Bali Strait has an index of 44.03 (less sustainable). There are three sensitive attributes that affect the sustainability of the ecological dimension, there were the level of utilization of fish resources, size of fish caught, and the number of catches. The recommended improvements for the sustainability of the ecological dimension were limiting fishing quotas, limiting the mesh size of fishing gear, and limiting areas and fishing seasons.
Co-Authors Aditya Bramana Aditya Bramana, Aditya AGUS PURWANTO Agus Purwanto Ario Anggara Mukti Azis, Muh. Arkam Aziz, Muh. Arkam Bhagaskara, I Nyoman Sujiwo Ganang Dwi Prasetyo Gito Hadiprayitno I Nyoman Sujiwo Bhagaskara Iya Purnama Sari Lalu Japa Larasati, Rakhma Fitria Liya Tri Khikmawati, Liya Tri M. Irsyad A. Ghafari M. Liwa Ilhamdi Made Mahendra Jaya MAINNAH, MUTH Makoto Tsuchiya Muh. Arkam Azis Muh. Arkam Azis Muh. Arkam Azis Muh. Arkam Aziz Muth Mainnah Noveldesra Suhery NOVITA TRI ARTININGRUM Novita Tri Atriningrum Perdana Putra Kelana Prayitno, Muhamad Riyono Edi Rahmat Kurnia Rizky Regina Kawirian Sarasati, Wulandari Shelly Tutupoho Suratna Suratna Suratna, Suratna Tanjov, Yulia Estmirar Tiku, Mathius Triyono, Heri Wulandari Sarasati Yusli Wardiatno