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Kurniawan, Isma Dwi
Department Of Biology, Faculty Of Science And Technology, UIN Sunan Gunung Djati Bandung, Bandung
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Journal : Gunung Djati Conference Series

 1 
DINAMIKA POPULASI KALACEMETI (AMBLYPYGI) DI LUWENG GEBYOK, PURWODADI, TEPUS, GUNUNGKIDUL, DIY Edi Dwi Atmaja; Budi Dwisetiyani; Isma Dwi Kurniawan
Gunung Djati Conference Series Vol. 6 (2021): Seminar Nasional Biologi (SEMABIO) 6 Tahun 2021
Publisher : UIN Sunan Gunung Djati Bandung

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Abstract

Gunungsewu is one of the largest and well-known karstareas in Indonesia. This karst area has an interesting endokarst(cave) ecosystem. One type of faunas that is common in caveecosystem is whip spiders (Order: Amblypygi). This fauna plays animportant role in maintaining cave ecosystem balance because theyact as top predator. Gebyok is a cave in Gunungsewu that isinhabited by whip spiders. This study aimed to monitor thepopulation dynamic of whip spiders in Gebyok. Data collection wascarried out by direct observation as long as 10 years starting from2010 until 2020. The annual population of whip spiders in Gebyokwas relatively stable (around 30-40 individuals). Meanwhile, thepopulation fluctuated significantly every month. The largestaverage of individuals record occurred in July (5) and the smallestwas in January (0.66). The population dynamic of whip spiders inGebyok was strongly affected by underground river activity.
STRUKTUR KOMUNITAS FITOPLANKTON SEBAGAI BIOINDIKATOR STATUS TROFIK PERAIRAN WADUK JANGARI KABUPATEN CIANJUR Intan Suhartini; Isma Dwi Kurniawan; Rahmat Taufiq M.A
Gunung Djati Conference Series Vol. 6 (2021): Seminar Nasional Biologi (SEMABIO) 6 Tahun 2021
Publisher : UIN Sunan Gunung Djati Bandung

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Abstract

Jangari Reservoir is one of the edges of the CirataReservoir located in West Java. Jangari Reservoir is widely usedas tourism and a place for fish cultivation which has the potentialto improve the trophic status of the waters. Phytoplanktoncommunities can be used as bioindicators in evaluating the trophicstatus of waters. This study aims to determine the trophic status ofthe Jangari Reservoir by using phytoplankton as a bioindicatorcombined with the physical and chemical properties of the waters.The method used is purposive sampling by determining threestations based on differences in utilization, tourism activities andfloating net cages. The data analysis consisted of the structure ofthe phytoplankton community and the calculation of the TrophicLevel Index (TLI) value. The physical and chemical parameterstested included water temperature, brightness, salinity, DO, pH,Total Nitrogen (TN), and Total Phosphorus (TP). The resultsshowed that there were 10 classes of phytoplankton found,consisting of Bacillariophyceae (3 genus), Chlorophyceae (7 genus), Cyanophyceae (1 genus), Dinophyceae (2 genus),Euglenophyceae (1 genus), Mediophyceae (2 genus),Trebouxiophyceae (3 genus), Ulvophyceae (1 genus),Xanthophyceae (1 genus), and Zygnematophyceae (3 genus).Abundance of phytoplankton ranged from 2,078-2,896 ind/L.Concentration of chlorophyll-a ranged from 22.5 to 31.96 mg/L.Value of the TLI ranged from 4.34 to 4.58. Based on observations,the trophic status of Jangari Reservoir based on phytoplanktoncomposition is classified as eutrophic, based on abudance ismesotrophic, and based on TLI is eutrophic.
Co-Authors Adisty Virakawugi Darniwa Ahmad Zaenal Ependi Ana Widiana Andy Setiabudi Anggita Rahmi Hafsari Anggita Rahmi Hafsari Anggita Rahmi Hafsari Ardi, Tiara Esti Astuti Kusumorini Ateng Supriyatna Ayuni Adawiyah Ayuni Adawiyah Bayu Pamungkas Birama Satria Budi Dwisetiyani Cahyo Rahmadi Cahyo Rahmadi Cahyo Rahmadi, Cahyo Edi Dwi Atmaja Farhan Fauzan Fezaa Ashelia Zakia Ameliee Ghea Gema Adzani Hasbi Yasin Hilda Ayu Emalia Ida Kinasih Ida Kinasih Intan Suhartini Ismi Farah Syarifah Liberty Chaidir M. Agus Salim Mentari Kusuma Wardani Mohamad Agus Salim Muhammad Tahmid Musa'adah Musa'adah Nasrullah, Ridwan Nida Hidayaturrohmah Omar Calva Opik Taupiqurrohman Rahmat Taufik MA Rahmat Taufiq M.A Rahmat Taufiq Mustahiq Akbar Rahmat Taufiq Mustahiq Akbar Rasyid Wisnuaji Rezzy Eko Caraka Risda Arba Ulfa Risda Arba Ulfa Sakhinah Abu Bakar Sawaludin Iqbal Sella Nur Devi Siska Tridesianti Tri Cahyanto Ucu Julita Willyanto, Muhammad Iqbal Yani Suryani Yuni Kulsum Zikri Imanudin