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Plankton potential as bioindicator of trophic status of Lokop River Leuser Ecosystem Andri Yusman Persada; Suri Purnama Febri; Kartika Aprilia Putri; Herlina Putri Endah Sari; Rianjuanda Djamani
Depik Vol 11, No 3 (2022): DECEMBER 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.3.25034

Abstract

Lokop is one of the villages in East Aceh which has a watershed in the Leuser Ecosystem. Human activities have the potential to disrupt the Trophic Status of Lokop River, such as the use of pesticides for agriculture, household waste and the use of potassium for fishing. It is necessary to research the quality of the waters in the Lokop River. The plankton community present in river waters can be an indicator of environmental pollution by analyzing the saprobic index. This study aims to determine the index of plankton diversity and water quality in the Leuser Ecosystem of the Lokop River through the saprobic index. The research was conducted at three stations. A sampling of plankton was taken in the form of a 10 cc filtrate and five replications were carried out for each study site. Water quality measurements include pH, TDS, Temperature, transparancy, depth, and current. 11 potential species can be used as pollution indicators in the Lokop River, namely Cladophora sp, Diatoma elongatum, Fragilaria capucina, Oedogonium sp., Gonatozygon sp, Lyngbya agardh, Melosira sp., Merismopedia punctata, Microspora sp, Pinnularia sp, Synedra ulna. The plankton diversity index is in the medium category. Based on the Saprobic Index, the level of pollution at the research site was not to lightly loaded of organic pollution and lowly loaded of organic pollution.Keywords:IsoprobikPlanktonBioindicatorLokop
Diversity and Abundance of Butterflies (Insecta: Lepidoptera) in Forest and Residential Areas on the Slopes of Mount Karang, Banten Jasmi, Riski Andrian; Musthopa, Muhamad Huda; Hanafiah, Raihan Imam; Febryansyah, Azmy; Badaruddin, Alfito; Iqramifta, Abil; Sari, Herlina Putri Endah
Biotropika: Journal of Tropical Biology Vol. 14 No. 2 (2026)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2026.014.02.05

Abstract

Butterflies play an important ecological role as pollinators and as biological indicators of habitat quality. However, information on butterfly diversity and abundance in the Mount Karang region of Banten has never been reported, creating a gap in the baseline biodiversity data for this area. This study aims to analyse the diversity, abundance, and distribution patterns of butterflies (Insecta: Lepidoptera) in two contrasting habitat types: the Canggoang Forest and the residential area of Juhut Village on the slopes of Mount Karang. Field sampling was conducted over eight days between September and October 2025 using direct capture methods (insect nets) in the morning and afternoon. Butterfly communities were analysed using biodiversity indices, and structural comparisons between the two habitats were assessed using the Jaccard and Bray–Curtis indices. A total of 23 species were recorded in the forest and 28 species in the residential area. Nymphalidae and Pieridae dominated both locations, while Papilionidae, Lycaenidae, and Hesperiidae were found in smaller numbers. Diversity values indicated a moderate level of species richness, with low dominance and high evenness. Species richness was categorised as high in both habitats. Variation in vegetation structure, availability of host plants, and microclimatic factors—particularly temperature, humidity, and wind speed—were identified as the main factors shaping butterfly communities. These findings provide the first comprehensive baseline data on butterfly biodiversity in the Mount Karang area and highlight the importance of maintaining heterogeneous habitat conditions to support both generalist and specialist species. The results also underscore the relevance of integrating butterfly diversity assessments into local conservation strategies and landscape management.
Co-Authors Acha, Basyarudin Ainul Yusna Harahap Al Fajar, Beni Amelia Amelia Andri Y. Persada Andri Yusman Persada Andri Yusman Persada Andri Yusman Persada Antoni Antoni Aprilia Putri, Kartika Asrori, Sayed Latiful Badaruddin, Alfito Beni Al Fajar Djunijanti Peggie, Djunijanti Fadlon Haser, Teuku Fahmy Armanda Fairus Fajar, Beni Al Febri, Suri Purnama Febryansyah, Azmy Fitriani Fitriani Fitriani Fitriani Hanafiah, Raihan Imam Harahap, Antoni Haser, Teuku Fadlon Ika Rezvani Aprita Imti Yazil Wafa Imti Yazil Wafa Iqramifta, Abil Janra, Muhammad Nazri Jatu Purnamawati Juliati Juliati Juliati, Juliati Kartika A. Putri Kartika Aprilia Putri Kartika Aprilia Putri Kartika Aprilia Putri Lupiyaningdyah, Pungki Mastura, Mastura Muhammad Isra Muhammad R. Hariri Muliani, Fitra Musthopa, Muhamad Huda Niaci, Sarah Nurjannah Nurjannah Nurjannah Nurwijayanti Persada, Andri Yusman Purnama Febri, Suri Putri, Kartika Aprilia Rachmawati Rusydi, Rachmawati Radhiah, Radhiah Rahmatul Fajri Ratna Lestari Ratna Lestari Rianjuanda Djamani Riski Andrian Jasmi Riski Andrian Jasmi Rosmaiti, Rosmaiti SALWA, ZAKIYAH HANIFAH Salwa, Zakiyah Hanifah Salwa Sara Gustia Wibowo SARI, MULIA SAFRIDA Saumi, Fazrina Silitonga, Ade Nursafitri Siti Diniarsih Siti Faizah Siti Komariyah Suri Purnama Febri Syahriandi Syahriandi Syamsiar, Syamsiar Syardiansah, Syardiansah Teuku Fadlon Haser Teuku Fadlon Haser Ulil Amna, Ulil W.A. Mustaqim Wafa, Imti Yazil Wahdaniah Wahyudi Wahyu Firmana Isnijar Wendy Achmmad Mustaqim Yusman Persada, Andri Yusna Harahap, Ainul Yusrizal Akmal Zakia Hanifah Salwa Zulfan Arico