Author:
Hossain Shaik Asif,Hossen Monir
Abstract
AbstractCross-correlation based fisheries stock assessment technique utilized array of multiple acoustic sensors which were equidistant pair. However, at practical implementation of this technique, equal distances among acoustic sensors is sometimes challenging due to different practical phenomenon. Therefore, in this study, we work on this issue and investigated the impact of unequal distances among the acoustic sensors. We found that cross-correlation based technique proved its effectiveness even for the unequal spacing among acoustic sensors. We considered chirp generating species of fish and mammals, i.e., damselfish (Dascyllus aruanus), humpback whales (Megaptera novaeangliae), dugongs (Dugong dugong), etc., species, and three acoustic sensors array for simulation purposes. Some limitations including negligence of multipath interference, assuming the delays to be integer were compromised during simulations.
Publisher
Springer Science and Business Media LLC
Reference22 articles.
1. Kaatz, I. M. Multiple sound-producing mechanisms in teleost fishes and hypotheses regarding their behavioural significance. Bioacoustics 12, 230–233 (2002).
2. Fish, M. P., Mowbray, W. H. Sounds of western North Atlantic fishes. A reference file of biological underwater sounds. Rhode Island University Kingston Narragansett Marine Lab. (1970).
3. Mohajer, Y., Ghahramani, Z. & Fine, M. L. Pectoral sound generation in the blue catfish Ictalurus furcatus. J. Comp. Physiol. A 201, 305–315 (2015).
4. Putland, R., Mackiewicz, A. & Mensinger, A. F. Using passive acoustics to localize vocalizing oyster toadfish (Opsanus tau). J. Acoust. Soc. Am. 144, 1692 (2018).
5. Rountree, R. A. et al. Listening to fish: Applications of passive acoustics to fisheries science. Fisheries. 31, 433–446 (2006).