Login | Create Account (DAF staff only)

Variable growth rates of the tropical estuarine fish barramundi Lates calcarifer (Bloch) under different freshwater flow conditions

Robins, J. and Mayer, D. and Staunton-Smith, J. and Halliday, I. and Sawynok, B. and Sellin, M. (2006) Variable growth rates of the tropical estuarine fish barramundi Lates calcarifer (Bloch) under different freshwater flow conditions. Journal of Fish Biology, 69 (2). pp. 379-391.

Full text not currently attached. Access may be available via the Publisher's website or OpenAccess link.

Article Link(s): http://dx.doi.org/10.1111/j.1095-8649.2006.01100.x

Publisher URL: http://www.fsbi.org.uk/

Abstract

Relationships between freshwater flows and growth rates of the opportunistic predatory finfish barramundi Lates calcarifer in a dry tropical estuary were examined using data from a long-term tag-recapture programme. Lagged effects were not investigated. After accounting for length at release, time at liberty and seasonal variation (e.g. winter, spring, summer and autumn), growth rates were significantly and positively related to fresh water flowing to the estuary. Effects were present at relatively low levels of freshwater flow (i.e. 2.15 m3 s-1, the 5th percentile of the mean flow rate experienced by fish in the study during time at liberty). The analysis, although correlative, provides quantitative evidence to support the hypothesis that freshwater flows are important in driving the productivity of estuaries and can improve growth of species high in the trophic chain.

Item Type:Article
Corporate Creators:Fisheries, Animal Science
Additional Information:© The Fisheries Society of the British Isles.
Keywords:Environmental flows; floods; river flows; seasonal growth.
Subjects:Aquaculture and Fisheries > Fisheries > Fishery for individual species
Aquaculture and Fisheries > Fisheries > Fishery research
Deposited On:03 Feb 2009 07:41
Last Modified:07 Sep 2010 06:59

Repository Staff Only: item control page