WP4: Assessment and modelling of fish feeding and spawning grounds

The activity was aimed at evaluation of feeding and spawning grounds for commercial fishes. Spatial distribution of main habitats was modelled and the value of feeding grounds was assessed. Efficiency of spawning grounds was evaluated and impact of water quality, including the role of the lagoon outflow, on spatial distribution of spawning and feeding grounds was assessed.

Workpackage indicators:
1. Documented model of spatial distribution of fish feeding and spawning grounds
2. Documented assessment of fish feeding ground quality
3. Documented assessment of fish spawning ground eficiency

More about workpackage:
Technical Report No. 4: "Assessment of benthic quality status in the Lithuanian coastal waters based on the Benthic Quality Index (BQI)"
Technical Report No. 5: "Predicted herring (Clupea harengus) spawning grounds in the Lithuanian coastal waters"
Technical Report No. 6: "Spatial distribution of fish feeding grounds in the Lithuanian Exclusive Economic Zone"
Technical Report No. 7: "Assessment of fish spawning ground efficiency"
Technical Report No. 8: "Surveillance of the Lithuanian marine resources from sediment profile images (SPI) using the benthic habitat quality (BHQ) index and sediment surface images (SSI)"

Presentations of results during national annual conference on marine and coastal research (2011 April):
"Video mosaicking in underwater research"
"Application of benthic quality (BQI) index for seabed quality classification" [in Lithuanian]
"Predicted herring (Clupea arengus) spawning grounds on the Lithuanian coast"
"Seabed zonation according to the value for feeding of benthic fishes"

Publications:
Šiaulys A., Daunys D., Bučas M., Bacevičius E. Mapping an ecosystem service: A quantitative approach to derive fish feeding ground maps. Oceanologia 54(3): 491-505.

Responsible for implementation:
Coastal Research and Planning Institute (coordination, remote video and diving surveys, field mapping of herring spawning gounds, fish feeding ground modelling)
AquaBiota Water Research (modelling of spawning grounds)
Norwegian Water Research Institute (SPI survey and seabed quality assessment)

Contact: Dr. Darius Daunys (tel.: +370 46 398874, e-mail: darius@corpi.ku.lt)