http://www.cnr.it/ontology/cnr/individuo/prodotto/ID215579
Comparisons of two research vessels' properties in the acoustic surveys of small pelagic fish (Articolo in rivista)
- Type
- Label
- Comparisons of two research vessels' properties in the acoustic surveys of small pelagic fish (Articolo in rivista) (literal)
- Anno
- 2012-01-01T00:00:00+01:00 (literal)
- Alternative label
Leonori I., Ticina V., De Felice A., Vidjak O., Grubisic L., Pallaoro A. (2012)
Comparisons of two research vessels' properties in the acoustic surveys of small pelagic fish
in Acta Adriatica; Institute of Oceanography and Fisheries, Split (Croazia)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Leonori I., Ticina V., De Felice A., Vidjak O., Grubisic L., Pallaoro A. (literal)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Note
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Istituto di Scienze Marine (ISMAR-CNR), Largo Fiera della Pesca, 60125 Ancona, Italy
Institute of Oceanography and Fisheries, Setaliste I. Mestrovica 63, Split, Croatia (literal)
- Titolo
- Comparisons of two research vessels' properties in the acoustic surveys of small pelagic fish (literal)
- Abstract
- Acoustic surveys in the Adriatic Sea have been performed annually by the research vessels \"Dallaporta\"
and \"Bios\", equipped with SIMRAD echo-sounders (EK-500 and EK-60), and working
with 38 kHz split-beam transducer (ES38B). Since the vessels have different characteristics and use
different pelagic trawls for fish sampling, there is uncertainty regarding the comparability of the
results obtained. In order to evaluate comparability of the results, a comparison between research
vessels was performed. That included comparisons of vessels' noise, acoustic data collection, and
fish samples composition and size structure analyses. The noise generated by both vessels was sufficiently
low to allow a single fish detection up to 200 m depth. Acoustic data collected by the two
vessels showed similar trends, no significant differences in average SA-values, and highly significant
correlation between SA-values. Therefore, unbiased acoustic data collected by vessels could
be combined in future stock assessments. Concerning collection of fish samples, anchovy resulted
as the most abundant species in the samples collected by both vessels even if size compositions of
anchovy were significantly different. (literal)
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