The Study of Deep-Sea Cephalopods.

Hoving, Henk-Jan T. , Perez, Jose Angel A., Bolstad, Kathrin S.R., Braid, Heather E., Evans, Aaron B., Fuchs, Dirk, Judkins, Heather, Kelly, Jesse T., Marian, José E.A.R., Nakajima, Ryuta, Piatkowski, Uwe , Reid, Amanda, Vecchione, Michael and Xavier, José C.C. (2014) The Study of Deep-Sea Cephalopods. Advances in Marine Biology, 67 . pp. 235-359. DOI 10.1016/B978-0-12-800287-2.00003-2.

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Abstract

"Deep-sea" cephalopods are here defined as cephalopods that spend a significant part of their life cycles outside the euphotic zone. In this chapter, the state of knowledge in several aspects of deep-sea cephalopod research are summarized, including information sources for these animals, diversity and general biogeography and life cycles, including reproduction. Recommendations are made for addressing some of the remaining knowledge deficiencies using a variety of traditional and more recently developed methods. The types of oceanic gear that are suitable for collecting cephalopod specimens and images are reviewed. Many groups of deep-sea cephalopods require taxonomic reviews, ideally based on both morphological and molecular characters. Museum collections play a vital role in these revisions, and novel (molecular) techniques may facilitate new use of old museum specimens. Fundamental life-cycle parameters remain unknown for many species; techniques developed for neritic species that could potentially be applied to deep-sea cephalopods are discussed. Reproductive tactics and strategies in deep-sea cephalopods are very diverse and call for comparative evolutionary and experimental studies, but even in the twenty-first century, mature individuals are still unknown for many species. New insights into diet and trophic position have begun to reveal a more diverse range of feeding strategies than the typically voracious predatory lifestyle known for many cephalopods. Regular standardized deep-sea cephalopod surveys are necessary to provide insight into temporal changes in oceanic cephalopod populations and to forecast, verify and monitor the impacts of global marine changes and human impacts on these populations.

Document Type: Article
Additional Information: WOS:000337493800004
Keywords: Cephalopoda; Deep sea; Diversity; Collection methods; Reproduction; Longevity; Trophic ecology; Evolution; Biogeography
Research affiliation: OceanRep > The Future Ocean - Cluster of Excellence > FO-R08
OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EV Evolutionary Ecology of Marine Fishes
OceanRep > The Future Ocean - Cluster of Excellence
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1016/B978-0-12-800287-2.00003-2
ISSN: 0065-2881
Projects: Future Ocean
Date Deposited: 19 Aug 2014 09:35
Last Modified: 11 Dec 2017 13:55
URI: http://oceanrep.geomar.de/id/eprint/25468

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