Acronym DIVERSE
Category
Aquaculture
Title Diversifying live feed diets for rearing marine fish larvae in semi-intensive systems Programme Nat. Programme (supported by ESIF)
Instrument (FP6)
Contact Type (FP7)
Strand (Interreg)
NA
Theme (FP7)
Activity Area (FP6)
Regional Area (Interreg)
Action (COST)
NA
Specific Programme (FP7)
NA
Funding source National-European Coordinator Pedro Marques Pousao Ferreira Coordinator email Pedro.pousao@ipma.pt
Coordinator institution
IPMA - Portuguese Institute for Sea and Atmosphere (Portugal)
Institutions involved
IPIMAR - Portuguese Institute for Fisheries and Sea Research (Portugal) ,
SRAAC - Regional Government of Madeira; Regional Secretary of Environment, Natural Resources and Climate Change (Portugal) ,
UMA - University of Madeira (Portugal) ,
CEM-UMA - University of Madeira; Research Centre for Macaronesian Studies (Portugal) ,
Start year 2011 End year 2014 Funding (€) € 170,236 Website NA Summary Development of a variant of the mesocosm technique where different trophic levels and nutrient contents. Besides the usual addition of exogenous phytoplankton, rotifers (Brachionus spp.) and Artemia nauplii, live feed will be supplemented with the heterotrophic dinoflagellate Oxyrrhis marina and copepod nauplii that are naturally nutritious. One of the advantages of such a system is that, besides rotifers and Artemia, larvae will have available very nutritious organisms that compose their natural diet in the wild which are safe and environmental friendly. In this system larvae will be reared at low densities under semi-natural conditions which will promote animal health and welfare to a degree that we hope will be observable in the quantity and quality of the fingerlings, and on the low rate of developmental abnormalities. This study will include comparative studies on the stomach contents to determine the trophic behaviour of the larvae using microscopy and DNA fingerprinting. Growth trials will be used to compare larvae reared in a mesocosm of intensive and semi-intensive approaches, as well as in the intensive system used in hatcheries, to evaluate larval growth performances and their quality, in terms of body chemical composition and of major types of deformities. Levels of micronutrients found in the diets that sustain growth and normal development, will be used as indices for requirements in larval and juvenile marine fish and the present project will contribute to the creation of a baseline for these two species.
(1) To improve current methodologies and live feeds used in aquaculture so that the rearing of marine fish larvae, that until now are unable to be cultivated or present very low survival, would be successful; (2) To rear red porgy Pagrus pagrus and dusky grouper, Epinephelus marginatus; (3) That the juveniles produced would comply the European Community regulations for organic aquaculture production (Reg. (CE) nº 710/2009).
Keywords
Fish;
Dusky grouper;
Red porgy;
Larval rearing;
Diets;
Marine Region
76
Not associated to marine areas
0
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