Using length data in the Schnute Model to describe growth in a metapenaeid from waters off Australia
- 1 January 2010
- journal article
- Published by CSIRO Publishing in Marine and Freshwater Research
- Vol. 61 (12), 1435-1445
- https://doi.org/10.1071/mf10060
Abstract
This paper presents a novel approach for fitting length data to the Schnute growth model. Cohorts were fitted manually to a time series of length distributions from two stocks (Clarence and Hunter Rivers) of Metapenaeus macleayi and considered analogous to individuals from tag–recapture data, in order to estimate growth parameters. Data for Clarence males best fitted the three-parameter Schnute Model (L∞ = 21.3 mm CL, κ = 0.025 day–1 and γ = –1.35), whereas those for Hunter males were best fitted to a two-parameter version of the model (L∞ = 33.5 mm CL, κ = 0.009 day–1 and γ = 0 fixed). The equivalent to the von Bertalanffy growth function was the best fit to female data from both stocks (L∞ = 36.6 and 40.2 mm CL, κ = 0.004 and 0.005 day–1 and γ = 1 fixed for Clarence and Hunter respectively). Females grew larger than males and took longer to achieve their maximum size. No significant differences in female growth were found between stocks; however, males from the Hunter grew to a longer mean maximum length but at a slower rate than those from the Clarence. This study shows how the Schnute Model can be fitted to length based data and thus include the flexibility of comparing fits between asymptotic and non-asymptotic growth functions.Keywords
This publication has 28 references indexed in Scilit:
- Latitudinal variation in growth of Crangon crangon (L.): Does counter-gradient growth compensation occur?Journal of Sea Research, 2009
- Assessing the validity of stylets as ageing tools in Octopus pallidusJournal of Experimental Marine Biology and Ecology, 2006
- Selectivity of conventional diamond- and novel square-mesh codends in an Australian estuarine penaeid-trawl fisheryFisheries Research, 2004
- Application of a weekly delay-difference model to commercial catch and effort data for tiger prawns in Australia’s Northern Prawn FisheryFisheries Research, 2003
- Accuracy, precision and quality control in age determination, including a review of the use and abuse of age validation methodsJournal of Fish Biology, 2001
- Growth, mortality and yield-per-recruit of deep-water royal red prawns (Haliporoides sibogae) off eastern Australia, using the length-based MULTIFAN methodMarine Biology, 1994
- Movements and growth of tagged Blue Endeavour Prawns, Metapenaeus endeavouri (Schmitt 1926), in the Western Gulf of Carpentaria, AustraliaMarine and Freshwater Research, 1992
- A general growth model for mark-recapture dataFisheries Research, 1991
- MULTIFAN a Likelihood-Based Method for Estimating Growth Parameters and Age Composition from Multiple Length Frequency Data Sets Illustrated using Data for Southern Bluefin Tuna (Thunnus maccoyii)Canadian Journal of Fisheries and Aquatic Sciences, 1990
- The Inpact of River Discharge on Distribution and Production of the School Prawn Metapenaeus macleayi (Haswell) (Crustacea : Penaeidae) in the Clarence River Region, Northern New South WalesMarine and Freshwater Research, 1978