Riblji resursi u prirodi su drastično smanjeni, sa tendencijom daljnjeg smanjenja i realnom mogućnošću presušivanja. Marikultura - uzgoj morskih organizama u kontroliranom okolišu – nudi alternativan izvor morske hrane. Svjetski trendovi pokazuju da je marikultura u brzom porastu, a razvoj marikulture uvršten je i među strateške ciljeve hrvatskog programa razvoja. Dostizanje ovog cilja zahtjeva konkurentnost hrvatskih proizvođača, što stvara potrebu za svođenjem utjecaja na okoliš i troškova proizvodnje na
minimum.

Cilj UKF projekta Finfish Mariculture Dynamic Energy Budget Model - FiMDEB bio je stvaranje modela koji povezuje hranjenje s rastom riba, te traženje efikasnijih strategija hranidbe uz pomoć novog modela. Predviđeno je da model bude temeljen na teoriji Dinamičkih energijskih budžeta (Dynamic Energy Budget- DEB), koja opisuje kako organizmi pribavljaju i koriste energiju.

PUBLIKACIJE:

A Full Lifecycle Bioenergetic Model for Bluefin Tuna

A new theoretical framework is proposed for devising feeding strategies in aquaculture, and a complete lifecycle model aimed at understanding metabolism of one of the most lucrative aquaculture species – pacific bluefin tuna (PBT) . Application of the new tools to sea bream aquaculture suggested significant improvements if feeding for smaller fish were increased. High maintenance requirements, most likely fueled by high energy expenditure on movement – were identified as the main reason for extremely inefficient aquaculture production of PBT (Jusup et al. 2011).

Jusup, M., Klanjšček, T., Matsuda, H., and Kooijman, S.A.L.M. 2011. A Full Lifecycle Bioenergetic Model for Bluefin Tuna.PLoSONE 6(7): e21903. doi:10.1371/ journal.pone.0021903.

Influence of fish feed composition on oxygen utilization of aquaculture effluents:

The decomposition of theorganic matter, in the form of excess feed and excreted matter, introduced to the environment by aquaculture can endanger living organisms by lowering oxygen levels. We developed linear and non-linear models to represent the dynamics of decomposition and accumulation of the organic matter, oxygen utilization and ammonium production. The model results are compared to the datasets from simulated aquaculture pond experiment (Klanjšček et al,2011)

Klanjšček, Jasminka; Geček, Sunčana; Legović, Tarzan. Influence of fish feed composition on oxygen utilization during decomposition of aquaculture effluents // Aquaculture Research. (2011) DOI: 10.1111/j.1365-2109.2011.02994.x