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one publication added to basket [259161]

Are free-floating planktonic hydroids (Cnidaria, Hydrozoa) common components of the pelagic fauna from the South Brazilian Bight? Cabral, A.C.; Noguiera Junior, M.; Nagata, R.M.; Pereira Brandini, F. (2015). Are free-floating planktonic hydroids (Cnidaria, Hydrozoa) common components of the pelagic fauna from the South Brazilian Bight? J. Mar. Biol. Ass. U.K. 95(8): 1645-1652. https://dx.doi.org/10.1017/S0025315415000727 In: Journal of the Marine Biological Association of the United Kingdom. Cambridge University Press/Marine Biological Association of the United Kingdom: Cambridge. ISSN 0025-3154; e-ISSN 1469-7769 Ook verschenen in: Sukhotin, A.; Frost, M.; Hummel, H. (Ed.) (2015). Proceedings of the 49th European Marine Biology Symposium September 8-12, 2014, St. Petersburg, Russia. European Marine Biology Symposia, 49. Journal of the Marine Biological Association of the United Kingdom, 95(8). 1517-1721 pp., meer

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Beschikbaar in	Auteurs
VLIZ: Non-open access 292381 [ aanvragen ]

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Trefwoord

Marien/Kust

Author keywords

Clytia; planktonic polyps; resuspension; zooplankton; South-westAtlantic; Brazil

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Auteurs		Top
Cabral, A.C. Noguiera Junior, M. Nagata, R.M. Pereira Brandini, F.

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Abstract

We analysed 267 zooplankton samples collected in the South Brazilian Bight (SBB; 23–27°S) to determine whether hydroids, typically benthic, are common components of the pelagic SBB. Two species, Clytia arborescens, recorded for the first time in the Atlantic Ocean, and Clytia sp. were identified. While these planktonic hydroids were frequent or relatively so in shallow shelf waters (~23% of the samples <50 m isobaths, and 5% of the samples >100 m), abundances were low (up to 61 hydranths m-3) suggesting a low trophic impact. Such colonies are probably fragments of benthic colonies detached by storms and/or tides. Given the good condition of the coenosarc, existence of gastric content, and presence of reproductive structures, development of these species appears to be normal in the pelagic environment. Existence in the plankton may increase their capacity for dispersion.

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