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Comparisons of two research vessels’ properties in the acoustic surveys of small pelagic fish

Iole LEONORI ; Istituto di Scienze Marine (ISMAR-CNR), Largo Fiera della Pesca, 60125 Ancona, Italy
Vjekoslav TIČINA   ORCID icon orcid.org/0000-0002-3686-9563 ; Institute of Oceanography and Fisheries (IOF), Šet. I. Meštrovića 63, 21000 Split, Croatia
Andrea DE FELICE ; Istituto di Scienze Marine (ISMAR-CNR), Largo Fiera della Pesca, 60125 Ancona, Italy
Olja VIDJAK ; Institute of Oceanography and Fisheries (IOF), Šet. I. Meštrovića 63, 21000 Split, Croatia
Leon GRUBIŠIĆ ; Institute of Oceanography and Fisheries (IOF), Šet. I. Meštrovića 63, 21000 Split, Croatia
Armin PALLAORO ; Institute of Oceanography and Fisheries (IOF), Šet. I. Meštrovića 63, 21000 Split, Croatia

Puni tekst: engleski, pdf (359 KB) str. 389-397 preuzimanja: 302* citiraj
APA 6th Edition
LEONORI, I., TIČINA, V., DE FELICE, A., VIDJAK, O., GRUBIŠIĆ, L. i PALLAORO, A. (2012). Comparisons of two research vessels’ properties in the acoustic surveys of small pelagic fish. Acta Adriatica, 53 (3), 389-397. Preuzeto s https://hrcak.srce.hr/97272
MLA 8th Edition
LEONORI, Iole, et al. "Comparisons of two research vessels’ properties in the acoustic surveys of small pelagic fish." Acta Adriatica, vol. 53, br. 3, 2012, str. 389-397. https://hrcak.srce.hr/97272. Citirano 21.07.2019.
Chicago 17th Edition
LEONORI, Iole, Vjekoslav TIČINA, Andrea DE FELICE, Olja VIDJAK, Leon GRUBIŠIĆ i Armin PALLAORO. "Comparisons of two research vessels’ properties in the acoustic surveys of small pelagic fish." Acta Adriatica 53, br. 3 (2012): 389-397. https://hrcak.srce.hr/97272
Harvard
LEONORI, I., et al. (2012). 'Comparisons of two research vessels’ properties in the acoustic surveys of small pelagic fish', Acta Adriatica, 53(3), str. 389-397. Preuzeto s: https://hrcak.srce.hr/97272 (Datum pristupa: 21.07.2019.)
Vancouver
LEONORI I, TIČINA V, DE FELICE A, VIDJAK O, GRUBIŠIĆ L, PALLAORO A. Comparisons of two research vessels’ properties in the acoustic surveys of small pelagic fish. Acta Adriatica [Internet]. 2012 [pristupljeno 21.07.2019.];53(3):389-397. Dostupno na: https://hrcak.srce.hr/97272
IEEE
I. LEONORI, V. TIČINA, A. DE FELICE, O. VIDJAK, L. GRUBIŠIĆ i A. PALLAORO, "Comparisons of two research vessels’ properties in the acoustic surveys of small pelagic fish", Acta Adriatica, vol.53, br. 3, str. 389-397, 2012. [Online]. Dostupno na: https://hrcak.srce.hr/97272. [Citirano: 21.07.2019.]

Sažetak
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.

Ključne riječi
Echo surveys; research vessels; acoustic properties; data acquisition; Adriatic Sea

Hrčak ID: 97272

URI
https://hrcak.srce.hr/97272

[hrvatski]

Posjeta: 542 *