Abstract
The Australian grayling, P. maraena, is generally regarded as Australia's most endangered freshwater fish species. A sample of 312 specimens from the Shoalhaven River, N.S.W., provided data on various aspects of its biology. The sample showed a bimodal length frequency distribution of 1 + and 2+ fish aged by otoliths. Grayling appear to suffer severe mortality, possibly as a result of spawning at age 2. The spawning season in the Shoalhaven River was from early February to early March and available data suggest that grayling are anadromous. P. maraena is a microphagic omnivore, and stomachs sampled contained principally cladocerans, algae and small insects. The need for further research to elucidate the grayling's habitat requirements and to determine effective conservation measures is stressed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
