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All Journal Jurnal Akuakultur Sungai dan Danau Journal of Fish Health
Zahroh, Fika
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Agriculture, Biological Sciences & Forestry Other

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Identification and Characterization of Fungi Associated with Shrimp from Whiteleg Shrimp Ponds in East Java Zahroh, Fika; Lifani, Shierly Zaissiliya Clarissa; Rachmadhany, Rentienna; Safira, Ayu; Putri, Rama Nia Julia; Melati, Noerita Widya; Puspitasari, Yunita Ika Putri; Pardede, Maria Agustina
Journal of Fish Health Vol. 6 No. 2 (2026): Journal of Fish Health
Publisher : Study Program of Aquaculture, Department of Fisheries and Marine Science, Faculty of Agriculture, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v6i2.9838

Abstract

Fungal infections in shrimp are one of the main challenges in shrimp farming activities that have the potential to reduce productivity levels and crop quality. Fungi are known as opportunistic microorganisms that can cause serious problems, especially when pond environmental conditions are not supportive. Fungal attacks generally occur when shrimp experience physiological stress due to temperature fluctuations, changes in salinity, decreased water quality, or excessively high stocking densities. This study was conducted to identify and characterize the types of fungi associated with shrimp ponds in three main cultivation areas in East Java, namely Banyuwangi, Jember, and Gresik. The fungal isolation process was carried out using Sabouraud Dextrose Agar (SDA) media and incubated at 27°C. Morphological identification was carried out by observing the characteristics of colonies, the shape and color of hyphae, and the structure of conidia. The results of the observations obtained were 6 fungal isolates divided into two main groups, namely yeast including Candida sp., Rhodotorula sp., and Brettanomyces sp. The most commonly found mold species were Aspergillus flavus, Aspergillus fumigatus, and Aspergillus niger. The results of this study demonstrate the potential of fungal probiotics in shrimp farming ecosystems and serve as a basis for developing disease prevention strategies for whiteleg shrimp in East Java's shrimp ponds.
Perbandingan Teknik Budidaya Rumput Laut (Gracilaria verrucosa) dengan Metode Longline dan Broadcast di PT. Rejeki Bintang Samudra, Sidoarjo, Jawa Timur Puteri, Ratih Rizqya; Pankito, Laurent Mercy; Mediana, Wahyu; Zahroh, Fika; Ramadhaniah, Ratih; Priyanto, Galih; Mukminin, Amirul
Jurnal Akuakultur Sungai dan Danau Vol 11, No 1 (2026): April
Publisher : Universitas Batangahari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/akuakultur.v11i1.323

Abstract

Indonesia remains one of the world's largest seaweed exporters; however, the optimisation of added value through the downstreaming of Gracilaria verrucosa still faces challenges regarding cultivation efficiency. This research aims to analyse the comparative cultivation techniques of the broadcast and longline methods, as well as the potential of polyculture systems at PT Rejeki Bintang Samudra. The parameters tested included biomass, Specific Growth Rate (SGR), and harvest productivity.The results indicated that both methods delivered superior performance, with biomass reaching 9,550 grams and an SGR of 3.13% at DOC 50. Productivity analysis based on harvest yields showed significant fluctuations at each sampling point, with a total accumulated weight of 118,740 kg from a total of 150 sacks. The highest productivity was recorded at the 40th sampling at 810.62 kg/sack, whilst the average total productivity stood at 791.6 kg/sack. Although both methods demonstrated excellent results, the reliance on monoculture systems remains a constraint for scalability. Consequently, the integration of Gracilaria verrucosa into a polyculture system with milkfish is recommended as a strategy for an aquaculture transformation that is more adaptive, sustainable, and of higher economic value.
Co-Authors Amirul Mukminin Ayu Safira, Ayu Lifani, Shierly Zaissiliya Clarissa Mediana, Wahyu Melati, Noerita Widya Pankito, Laurent Mercy Pardede, Maria Agustina Priyanto, Galih Puspitasari, Yunita Ika Putri Puteri, Ratih Rizqya Putri, Rama Nia Julia Rachmadhany, Rentienna Ramadhaniah, Ratih