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5 de jun. de 2024 · Here, we examined the potential impacts of acoustic tags of two sizes (nominally a ‘V6’ [smaller] and ‘V7’ [larger]) on the downstream riverine migration success and behaviour of wild Atlantic salmon (Salmo salar L.) smolts. One hundred fish were tagged with either a V6 or V7 tag.
24 de jun. de 2024 · We used fisheries acoustics to investigate the distributions of fish around oil and gas platforms and associated infrastructure throughout the North Sea, searching for relationships between fish and platform areal densities using high-resolution fisheries acoustic data.
20 de jun. de 2024 · Fishery scientists have used acoustics to estimate fish biomass and abundance (stock assessment), evaluate spatial and temporal distributions, and measure school size, distributions, and population structure.
21 de jun. de 2024 · This method utilizes forward-looking sonar to generate acoustic images of aquaculture net cages, employs a YOLOv8 neural network model with an added atention mechanism to identify fish targets, and utilizes a BP neural network to invert feature data to estimate the overall quantity of fish.
Hace 6 días · A Bayesian inverse approach to identify and quantify organisms from fisheries acoustic data
20 de jun. de 2024 · Acoustic data was collected using a 200 kHz single beam echosounder based on parallel transects encircling the waters of Lancang Island. CTD was utilized to collect oceanographic data to acquire temperature and salinity profiles within the water column.
7 de jun. de 2024 · A pioneering study by researchers at Florida Atlantic University and the Smithsonian Environmental Research Center fills the gaps in sporadic detection data of marine animals and tackles the tradeoff between spatial coverage and cost.
