منابع مشابه
Social behaviour in mesopelagic jellyfish
Gelatinous organisms apparently play a central role in deep pelagic ecosystems, but lack of observational methodologies has restricted information on their behaviour. We made acoustic records of diel migrating jellyfish Periphylla periphylla forming small, ephemeral groups at the upper fringe of an acoustic scattering layer consisting of krill. Groups of P. periphylla were also documented photo...
متن کاملDiving behaviour of jellyfish equipped with electronic tags
GRAEME C. HAYS1*, THOMAS K. DOYLE2, JONATHAN D. R. HOUGHTON1, MARTIN K. S. LILLEY1, JULIAN D. METCALFE3 AND DAVID RIGHTON3 1 BIOLOGICAL SCIENCES, INSTITUTE OF ENVIRONMENTAL SUSTAINABILITY, SWANSEA UNIVERSITY, SWANSEA SA2 8PP, UK, COASTAL AND MARINE RESOURCES CENTRE, UNIVERSITY COLLEGE CORK, GLUCKSMAN MARINE FACILITY, NAVAL BASE, HAULBOWLINE, COBH, CORK, IRELAND AND CENTRE FOR ENVIRONMENT, FISHE...
متن کاملLarge scale patterns in vertical distribution and behaviour of mesopelagic scattering layers
Recent studies suggest that previous estimates of mesopelagic biomasses are severely biased, with the new, higher estimates underlining the need to unveil behaviourally mediated coupling between shallow and deep ocean habitats. We analysed vertical distribution and diel vertical migration (DVM) of mesopelagic acoustic scattering layers (SLs) recorded at 38 kHz across oceanographic regimes encou...
متن کاملMetabolism in mesopelagic and bathypelagic
In reply to the Comment by Childress et al. (2008; Mar Ecol Prog Ser 373:187–191), a rationale is given for the use of N-specific respiration data (instead of live-mass specific respiration data), life stage/sex structured data (instead of species structured data), capture depth (instead of minimum depth of occurrence, MDO) and respirometry design including enzyme assay of electron transfer sys...
متن کاملThe Involvement of Nerves in the Epithelial Control of Crumpling Behaviour in a Hydrozoan Jellyfish
1. The excitation pathways mediating the protective crumpling behaviour of Polyorchis penicillatus were studied with electrophysiological and ultrastructural techniques. 2. Stimulating the subumbrellar endoderm consistently resulted in a complex crumpling potential when recorded with suction electrodes from radial muscle (the prime effector). The potential represents the summation of a quick ra...
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2015
ISSN: 2045-2322
DOI: 10.1038/srep11310