Skip Navigation


ICES Journal of Marine Science: Journal du Conseil Advance Access originally published online on April 8, 2009
ICES Journal of Marine Science: Journal du Conseil 2009 66(6):998-1006; doi:10.1093/icesjms/fsp077
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
66/6/998    most recent
fsp077v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Kloser, R. J.
Right arrow Articles by Lewis, M. E.
PubMed
Right arrow Articles by Kloser, R. J.
Right arrow Articles by Lewis, M. E.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© 2009 International Council for the Exploration of the Sea. Published by Oxford Journals. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

This article appears in the following ICES Journal of Marine Science issue: The Ecosystem Approach with Fisheries Acoustics and Complementary Technologies [View the issue table of contents]

Acoustic observations of micronekton fish on the scale of an ocean basin: potential and challenges

Rudy J. Kloser, Tim E. Ryan, Jock W. Young and Mark E. Lewis

CSIRO MAR, PO Box 1538, Hobart 7001, Australia

Correspondence to R. J. Kloser: tel: +61 3 62325222; fax: +61 3 62325000; e-mail: rudy.kloser{at}csiro.au.

Kloser, R. J., Ryan, T. E., Young, J. W., and Lewis, M. E. 2009. Acoustic observations of micronekton fish on the scale of an ocean basin: potential and challenges. – ICES Journal of Marine Science, 66: 998–1006.

Acoustic methods of characterizing micronekton communities (~2 to 20 cm length) on the scale of an ocean basin could provide valuable inputs to ecosystem-based fishery management, marine planning, and monitoring the effects of climate change. The micronekton fish are important forage for top predators (e.g. tunas), and information on their diversity, distribution, size-structure, and abundance is needed to increase accuracy of top-predator distribution and abundance predictions. At the scale of an ocean basin, four years of Tasman Sea transects using a fishing vessel provide fine-scale maps of acoustic backscatter at 38 kHz that reveal detailed spatial patterns and structure to depths of 1200 m. Research-vessel data provide detailed biodiversity, density, size structure, and acoustic-scattering information from depth-stratified net sampling and a lowered acoustic probe. Wet-weight biomass estimates of the micronekton fish in the region vary considerably by a factor of 5–58 between acoustics (16–29 g m–2), nets (1.6 g m–2), and large spatial-scale, ecological models (0.5–3 g m–2). We demonstrate the potential and challenges of an acoustic basin-scale, fishing-vessel monitoring programme, including optical and net sensing, which could assist in characterizing the biodiversity, distribution, and biomass of the micronekton fish.

Keywords: acoustics, ecosystem models, micronekton, ocean basin

Received 8 August 2008; accepted 12 November 2008; advance access publication 8 April 2009.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.