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Tjandra Chrismadha

Tjandra Chrismadha
National Research and Innovation Agency, Republic of Indonesia

About

22
Publications
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195
Citations

Publications

Publications (22)
Article
Full-text available
Azolla pinnata is a floating aquatic plant with several benefits as a source of feed in aquaculture and animal as well as a phytoremediator. Research with two replications was carried out at RC for Limnology and Water Resources laboratory on May 2022 to explore information on its nutritional content, growth ability and function as a phytoremediator...
Article
Full-text available
Giant duckweed ( Spirodela polyrhiza ) is one species of duckweed, distributed cosmopolitanly in stagnant freshwater. The duckweed has several potential uses such as for animal and fish feeds. However, its biological information in Indonesia is rare. A research was conducted in June to July 2019 to explore its nutritional content and growth ability...
Article
Full-text available
A suitable growth medium has to be developed to implement the potential use of minute duckweed ( L. perpusilla Torr.). This tiny floating aquatic plant has been widely promoted as a source of protein. This research aims to find the optimal NPK based media for enhancing plant protein productivity. The duckweed was grown in twelve various NPK based m...
Article
Full-text available
Phosphorus has been pointed out as one of the limiting factors that limit freshwater bio productivity, so controlling this element at an optimum level is crucial to enhance pond water bio productivity. This study evaluates the impact of phosphorus enrichment in the pond (small lake) water on the zooplankton population development. The clear pond wa...
Article
Full-text available
One of the problems of aquaculture is the high cost of feed. Therefore, how to minimize the feed cost is of the main goals. It is necessary to find out natural sources that can be used as alternative feed. Wolffia globosa is an aquatic weed that is presumed to be used as an alternative feed source. Study the nutritional content of the Wolffia was c...
Conference Paper
Water enrichment has become a national problem that needs to be resolved. This study examined the ability of water fleas Daphnia magna to grow and to control phytoplankton populations in the waters from eutrophic ponds Situ Cikaret and Situ Gunung Putri in Bogor Regency, West Java. Water samples from these water bodies were used to grow the daphnid...
Article
Full-text available
Upaya pencarian pakan alternatif, khususnya pakan alami yang murah serta mudah diperoleh, terus dilakukan untuk meningkatkan efisiensi usaha budi daya ikan. Penelitian ini dilakukan untuk mengetahui efektivitas penggunaan dua jenis tumbuhan air dari kelompok Lemnaceae, yaitu Wolffia globosa and Lemna perpusilla sebagai pakan alternatif pada budi d...
Article
Full-text available
Lemna perpusilla Torr is one of the freshwater plants of the duckweed group (family Lemnaceae) spread all over the world that found in inland waters such as ponds, ponds (embung), or paddy fields. This study aims to determine Lemna’s potential use as a feed for tilapia to improve the taste. Three treatments are measured organoleptically. The N1 tre...
Article
Full-text available
Water enrichment has become a national problem that needs to be resolved. This study examined the ability of water fleas Daphnia magna to grow and to control phytoplankton populations in the waters from eutrophic ponds Situ Cikaret and Situ Gunung Putri in Bogor Regency, West Java. Water samples from these water bodies were used to grow the daphnid...
Article
Full-text available
Biofloc is one of the water bioremediation agents in aquaculture. A consortium of microorganisms in biofloc, which include heterotrophic bacteria, phytoplankton and zooplankton, can also function as natural food sources for aquatic biota. This study aims to investigate the potential of biofloc microorganisms consortium as natural food for commercia...
Article
Full-text available
Implementation of minute duckweed (Lemnaperpusilla) in an integrated aquaculture system for encouraging movement of in-lake floating cage aquaculture to inland base aquaculture has been emphasized as one among various measures for restoring the degraded Lake Maninjau water quality. Unfortunately, in the field, there is a harmful competition between...
Article
Full-text available
Maninjau lake has currently been under eutrophic condition and needs urgent efforts to recover it. Integrated multitrophic aquaculture (IMTA) has proposed as one among those pointed measures, by using lake water to perform inland aquaculture activity, in which an aquatic plant was employed to carry out double functions, as water phytoremediator and...
Article
Full-text available
Phytotechnology utilizes plants as a strategic tool for resolving various environmental problems. One major problem of the lake in Indonesia is floating cage aquaculture practices that produce organic contamination which leads to water eutrophication. As a producer, plants play a central role in material and energy transfer in ecosystems, utilizing...
Conference Paper
Full-text available
An experimental aquatic food chain system was tested to utilize eutrophic water for producing useful natural feed. Water flea (Daphnia magna) was the main focus in this food chain system, in which it was grown on algal biomass bloom in eutrophic water, and harvested following its function as fish feed. The eutrophic waters were originated from a sm...
Article
Full-text available
Lake Maninjau is a tecto-volcanic lake in West Sumatra, which is currently facing eutrophication problem and urgently needs measures to be recovered. A preliminary experiment was carried out to assess the possibility of using minute duckweed ( Lemna perpusilla Torr.) for healing the lake water, while also producing biomass for alternative feed. Thi...
Poster
Full-text available
An experimental aquatic food chain system was tested to utilize eutrophic water for producing useful natural feed. Water fleas (Daphnia magna) was the main focus in this food chain system, in which they will grow on algal biomass bloom in eutrophic water, and then function as fish feed.
Article
Full-text available
ABSTRAK Air Limbah kolam ikan resirkulasi memiliki karakteristik yang mirip dengan perairan eutrofik sehingga tidak aman untuk dibuang ke perairan umum secara langsung. Pada penelitian ini dilakukan evaluasi kemampuan tiga variasi kepadatan eceng gondok (Eichornia crassipes) untuk memperbaiki kualitas air limbah kolam ikan resirkulasi tersebut. Tuj...
Article
Growth and eicosapentaenoic acid (EPA) productivity of the diatomPhaeodactylum tricornutum grown semicontinuously in a helical tubular photobioreactor were examined under a range of irradiances (approximately 56 to 1712 mol photons m-2 s-1) and cell densities (3 106 to 18 106 cells mL-1). Self shading sets the upper limit of operational maximum cel...

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