Please Note:

The Open Access Repository will be moving to a new authentication system on the 1st of November.

From this date onwards, account holders will be required to login using their University of Tasmania credentials.
If your current repository username differs from your University username, please email E.Prints@utas.edu.au so we can update these details on your behalf.

Due to the change, there will be a short outage of the repository from 9am on the morning of the 1st of November

Open Access Repository

How long would it take to become a giant squid?

Downloads

Downloads per month over past year

Grist, EPM and Jackson, GD (2007) How long would it take to become a giant squid? Reviews in Fish Biology and Fisheries, 17 (2-3). pp. 385-399. ISSN 0960-3166

[img] PDF
4438.pdf | Request a copy
Full text restricted
Available under University of Tasmania Standard License.

Abstract

Abstract Laboratory and field studies suggest
that cephalopod growth occurs rapidly and is
linked to temperature throughout a short life
span. For giant squid such as Architeuthis, a
paucity of size-at-age data means that growth is
only inferred from isolated field specimens, based
on either statoliths or isotopic analyses of tissue.
In this study we apply simple growth models to
obtain projections of the life span required to
achieve the Architeuthis average body mass in
scenarios which include an energy balance
between rates of food intake and expenditure
on growth and metabolism. Although the analysis
shows that a wide range for the estimated life
span is possible, energy conservation suggests that
achievement of a larger size would be assisted by
slower exponential growth early on. The results
are compared with a sparse set of size-at-age data
obtained from male and female Architeuthis wild
specimens and possibly hint at some behavioural
differences between males and females.

Item Type: Article
Keywords: Feeding and metabolic rates Simple two phase growth model Energy balance Architeuthis Giant squid Cephalopod growth Growth models
Journal or Publication Title: Reviews in Fish Biology and Fisheries
Publisher: Springer
Page Range: pp. 385-399
ISSN: 0960-3166
Identification Number - DOI: 10.1007/s11160-007-9046-x
Additional Information:

The original publication is available at www.springerlink.com

Date Deposited: 07 Apr 2008 14:39
Last Modified: 18 Nov 2014 03:35
Item Statistics: View statistics for this item

Actions (login required)

Item Control Page Item Control Page
TOP