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Type: Journal article
Title: Transitions during cephalopod life history: the role of habitat, environment, functional morphology and behaviour
Author: Robin, J.P.
Roberts, M.
Zeidberg, L.
Bloor, I.
Rodriguez, A.
Briceño, F.
Downey, N.
Mascaro, M.
Navarro, M.
Guerra, A.
Hofmeister, J.
Barcellos, D.D.
Lourenço, S.A.
Roper, C.F.
Moltschaniwskyj, N.A.
Green, C.P.
Mather, J.
Citation: Advances in Marine Biology, 2014; 67:361-437
Publisher: Elsevier
Issue Date: 2014
Series/Report no.: Advances in Marine Biology; 67
ISBN: 9780128036020
ISSN: 0065-2881
Editor: Jefferson, T.A.
Curry, B.E.
Statement of
Jean-Paul Robin, Michael Roberts, Lou Zeidberg, Isobel Bloor, Almendra Rodriguez, Felipe Briceño, Nicola Downey, Maite Mascaró, Mike Navarro, Angel Guerra, Jennifer Hofmeister, Diogo D. Barcellos, Silvia A.P. Lourenço, Clyde F.E. Roper, Natalie A. Moltschaniwskyj, Corey P. Green, Jennifer Mather
Abstract: Cephalopod life cycles generally share a set of stages that take place in different habitats and are adapted to specific, though variable, environmental conditions. Throughout the lifespan, individuals undertake a series of brief transitions from one stage to the next. Four transitions were identified: fertilisation of eggs to their release from the female (1), from eggs to paralarvae (2), from paralarvae to subadults (3) and from subadults to adults (4). An analysis of each transition identified that the changes can be radical (i.e. involving a range of morphological, physiological and behavioural phenomena and shifts in habitats) and critical (i.e. depending on environmental conditions essential for cohort survival). This analysis underlines that transitions from eggs to paralarvae (2) and from paralarvae to subadults (3) present major risk of mortality, while changes in the other transitions can have evolutionary significance. This synthesis suggests that more accurate evaluation of the sensitivity of cephalopod populations to environmental variation could be achieved by taking into account the ontogeny of the organisms. The comparison of most described species advocates for studies linking development and ecology in this particular group.
Keywords: Cephalopod ontogeny; Life stages; Morphological changes; Acquisition of behaviours; Habitat shifts; Environmental variability; Cohort survival; Paralarvae; Juvenile; Subadult; Adult
Rights: © 2014 Elsevier Ltd. All rights reserved
DOI: 10.1016/B978-0-12-800287-2.00004-4
Appears in Collections:Aurora harvest 3
Zoology publications

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