Browsing Brage IMR by Author "Lynam, Christopher P."
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Pinging down the food web: multi-frequency acoustic discrimination of jellyfish and fish
Lynam, Christopher P.; Brierley, Andrew S.; Axelsen, Bjørn Erik (ICES CM Documents;2004/R:6, Working paper, 2004)Jellyfish are gaining increasing prominence in many pelagic marine ecosystems worldwide. It has been argued that jellyfish-dominated communities will be the end-point in ecosystems perturbed by high fishing effort, and ... -
Towards the acoustic estimation of jellyfish abundance
Brierley, Andrew S.; Boyer, D.; Axelsen, Bjørn Erik; Lynam, Christopher P.; Sparks, Conrad A. J.; Boyer, Helen; Gibbons, Mark J. (Journal article; Peer reviewed, 2005-06-23)Acoustic target strengths (TSs) of the 2 most common large medusae, Chrysaora hysoscella and Aequorea aequorea, in the northern Benguela (off Namibia) have previously been estimated (at 18, 38 and 120 kHz) from acoustic ...