This paper proposes an indirect method to estimate Bluefin Tuna (Thunnus thynnus)
biomass in cages using acoustic techniques. Two Simrad EK60 echosounders working at …

The aim of the present study was to establish the relationship between target strength (TS)
and body length of Atlantic salmon (Salmo salar) in sea cages. Five size-groups (mean total …

Hydroacoustic split-beam techniques have been applied to enumerate salmon migrating in
the river Tana (northern Norway) during the summers 1998 and 1999. Analysing data by …

Pour pouvoir convertir l'énergie acoustique en estimations de la densité de poissons, il est
nécessaire de connaître l'intensité de la cible (TS) constituée par un poisson représentatif …

Detailed fish target strength (TS) studies allow us to relate their physical and biological
variables to their sound behaviour and they potentially improve the accuracy of acoustic …

Side-looking, fixed-location sonar is used to estimate the abundance of migrating chinook
salmon Oncorhynchus tshawytscha in the Kenai River, Alaska. For this application, echo …

Tropical tuna fisheries support some of the largest artisanal and industrial fisheries
worldwide. Approximately 37% of the tropical tuna catch by industrial purse seiners is …

In aquaculture, monitoring fish size and density is fundamental to improve management and
profitability of fish farms. The aim of this study is to test whether horizontally aimed 200-kHz …

Abstract Burwen, DL, Nealson, PA, Fleischman, SJ, Mulligan, TJ, and Horne, JK 2007. The
complexity of narrowband echo envelopes as a function of fish side-aspect angle.–ICES …

For this side-looking, 200 kHz, split-beam sonar application, echo-envelope length has been
shown to be predictive of fish size. In this study, this relationship is exploited to estimate the …