Growth and survival of Collosoma sp. larvae at different water exchange rate in recirculating aquaculture system
Abstract
Recirculating aquaculture system (RAS) is one of aquaculture systems that aimed at providing good water quality as fish culture medium. The objective of this study was to examine the effect of water exchange rate in RAS on the growth and survival of Collosoma sp. Four different water exchange rates were tested, i.e. 0.003 ℓ/s, 0.005 ℓ/s, 0.008 ℓ/s, and 0.010 ℓ/s. Collosoma sp. larvae was stocked at a density of 50 fish/ℓ in plastic jar with a volume of 4ℓ. The observation showed that water exchange rate of 0.005 ℓ/s resulted in the best survival and growth.
Key words: Circulating system, Collosoma larvae, water exchange rate, growth, survival
ABSTRAK
Akuakultur sistem sirkulasi merupakan salah satu sistem budidaya yang bertujuan untuk menyediakan kualitas air yang baik sebagai media pemeliharaan ikan. Tujuan penelitian ini adalah untuk mempelajari pengaruh laju pergantian air terhadap kelangsungan hidup dan pertumbuhan larva ikan bawal Collosoma sp. Perlakuan meliputi empat laju pergantian air yang berbeda yaitu, 0,003 ℓ/detik; 0,005 ℓ/detik; 0,008 ℓ/detik; and 0,010 ℓ/detik. Larva ikan bawal kemudian ditebar dalam stoples plastic dengan volume 4ℓ dengan kepadatan 50 ekor/ℓ. Hasil penelitian menunjukkan bahwa laju pergantian air sebanyak 0,005 ℓ/detik memberikan kelangsungan hidup dan pertumbuhan ikan bawal terbaik.
Kata-kata kunci: Sirkulasi, larva ikan bawal, laju pergantian air, pertumbuhan, kelangsungan hidup
Downloads
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online
(e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
