caa a22 4500 397551517 CHVBK 20180308164751.0 cr unu---uuuuu 161202e199604 xx s 000 0 eng 10.1006/jmsc.1996.0019 doi (NATIONALLICENCE)oxford-10.1006/jmsc.1996.0019 Artificial neural networks as a tool for species identification of fish schools [Elektronische Daten] [J. Haralabous, S. Georgakarakos] Fish schools of sardine, anchovy, and horse mackerel can be discriminated from each other, under given conditions, using a set of parameters extracted from echo-integration data. Trawl sampling and hydroacoustic data were collected in 1992 and 1993 in the Thermaikos Gulf by using a towed dual-beam 120 kHz transducer. The parameters extracted from the available schools were used to train multi-layered feed-forward artificial neural networks. Various applied networks easily generated associations between school descriptors and species identity, providing a powerful tool for classification. The expertise of the trained network was tested with data from identified schools not used in training. The use of neural networks cannot replace classical statistical procedures, but offers an alternative when there are significant overlaps in the school characteristics and the parametric assumptions are not satisfied. © 1996 International Council for the Exploration of the Sea Regular Articles nationallicence backpropagation nationallicence classification nationallicence echogram nationallicence feed-forward nationallicence fish school nationallicence hydroacoustics nationallicence identification nationallicence neural networks nationallicence pelagic fish nationallicence supervised learning nationallicence Haralabous J. Institute of Marine Biology of Crete (IMBC) - Hydroacoustics, PO Box 2214, GR-71003, Heraklion, Crete, Greece aut Georgakarakos S. Institute of Marine Biology of Crete (IMBC) - Hydroacoustics, PO Box 2214, GR-71003, Heraklion, Crete, Greece aut ICES Journal of Marine Science Oxford University Press 53/2(1996-04), 173-180 1054-3139 53:2<173 1996 53 icesjms https://doi.org/10.1006/jmsc.1996.0019 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1006/jmsc.1996.0019 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Haralabous J. Institute of Marine Biology of Crete (IMBC) - Hydroacoustics, PO Box 2214, GR-71003, Heraklion, Crete, Greece aut NATIONALLICENCE 700 1- Georgakarakos S. Institute of Marine Biology of Crete (IMBC) - Hydroacoustics, PO Box 2214, GR-71003, Heraklion, Crete, Greece aut NATIONALLICENCE 773 0- ICES Journal of Marine Science Oxford University Press 53/2(1996-04), 173-180 1054-3139 53:2<173 1996 53 icesjms Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford