Hydrobiologia

, Volume 771, Issue 1, pp 1–7 | Cite as

Comments on “The Antarctic toothfish (Dissostichus mawsoni): biology, ecology, and life history in the Ross Sea region,” by S. Hanchet et al.

(Hydrobiologia, 2015, 761:397–414)
  • David G. Ainley
  • Joseph T. Eastman
  • Cassandra M. Brooks
Opinion Paper

Abstract

We expand the paper by Hanchet et al. (Hydrobiologia 761:397–414, 2015), published in Hydrobiologia, by elaborating upon neutral buoyancy, a critical aspect of Antarctic toothfish life history that was only briefly treated by those authors. Neutral buoyancy, although not common among adult notothenioid fish, is an attribute that expands the water column niche space of this species beyond that available to the bottom-dwelling toothfish that were emphasized in the review. Conversely, also not well covered in the review are the implications involved in the suspected absence of neutral buoyancy in the so-called post-spawning, fat-depleted “axe-handle” fish.

Keywords

Antarctic toothfish Neutral buoyancy Axe-handle body condition Ross Sea Southern Ocean 

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • David G. Ainley
    • 1
  • Joseph T. Eastman
    • 2
  • Cassandra M. Brooks
    • 3
  1. 1.H.T. Harvey & Associates Ecological ConsultantsLos GatosUSA
  2. 2.Department of Biomedical SciencesOhio UniversityAthensUSA
  3. 3.Emmett Interdisciplinary Program in Environment and ResourcesStanford UniversityStanfordUSA

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