Dumbo octopod hatchling provides insight into early cirrate life cycle

Shea, Elizabeth K.; Ziegler, Alexander; Faber, Cornelius; Shank, Timothy M.

doi:10.1016/j.cub.2018.01.032

i

Dumbo octopod hatchling provides insight into early cirrate life cycle

2018
By Shea, Elizabeth K. ; Ziegler, Alexander ; Faber, Cornelius
Source Current Biology, 28(4), R144-R145

Details

Journal Title:

Current Biology
Personal Author:

Shea, Elizabeth K. ; Ziegler, Alexander ; Faber, Cornelius ; Shank, Timothy M.
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research)
Description:

Cirrate octopods (Cephalopoda: Cirrata) are among the largest invertebrates of the deep sea. These organisms have long been known to lay single, large egg capsules on hard substrates on the ocean bottom 1, including cold-water octocorals (Anthozoa: Octocorallia). The egg capsule is comprised of an external egg case as well as the chorion and developing embryo. Development in cirrates proceeds for an extended time without parental care 2. Although juveniles have previously been collected in the midwater 3, cirrate hatchlings have so far never been observed. Here, we provide the first video of a living hatchling and use magnetic resonance imaging (MRI) to analyze its anatomy and assign the specimen to the genus Grimpoteuthis, the so-called dumbo octopods. The specimen’s behavior and advanced state of organ development show that cirrate hatchlings possess all morphological features required for movement via fin-swimming, for visually and chemically sensing their environment, and for prey capture. In addition, the presence of a large internal yolk sac reduces the risk of failure at first feeding. These data provide evidence that dumbo octopods hatch as competent juveniles.
Keywords:
- General Agricultural and Biological Sciences
- General Biochemistry, Genetics and Molecular Biology
Source:

Current Biology, 28(4), R144-R145
DOI:

https://doi.org/10.1016/j.cub.2018.01.032
ISSN:

0960-9822
Format:

PDF
Publisher:

Elsevier BV
Document Type:

Journal Article
Funding:

Grant no. NA05OAR4601054
Rights Information:

Other
Compliance:

Library
Download URL:

https://repository.library.noaa.gov/view/noaa/60140/noaa_60140_DS1.pdf
File Type:

[PDF - 461.79 KB]
Collection(s):

Office of Oceanic and Atmospheric Research (OAR)
Main Document Checksum:

urn:sha256:0bb39c05d822306776ab59ce27108ca7af90359c71285efb8fb4aeabeda98a5c

ON THIS PAGE

Details

Found an issue?

Send us an email at:

noaa.repository@noaa.gov

The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners. As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.