Hobart

Seminar Abstract

Wednesday 14 October 2009, 10.00am (Tas time)
CSIRO Auditorium, Hobart

Gudrún Marteinsdóttir
Frohlich Fellow
Institute of Biology
University of Iceland

Effects of fishing on inter and intra stock diversity of marine resources

Maintenance of phenotypic, and in particular genetic, diversity between and within stocks is one of the most critical goals of fisheries management and conservation. Fishing has been held responsible for the extinction and depletion of a number of stocks, and the majority of those remaining are threatened by over-exploitation. Fishing mortality often exceeds that which is natural and in addition fishing activities tend to be highly selective. Accumulating evidence suggests that selection pressures exerted through harvesting that is selective for size, age, sex, maturity and/or certain behavioural/genetic components have influenced the structure, plasticity, production, sustainability and recovery potential of a growing number of exploited stocks. In this talk I will review the known effects that fishing has had on inter- and intra-stock diversity, and the potential consequences for fish stocks in terms of alteration of genetic and phenotypic properties.

Seminar recording

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Location:
CSIRO = Marine Laboratories Auditorium, Castray Esplanade, Hobart

For further information, or to schedule a seminar, contact:
To schedule a seminar, contact:
Clothilde Langlais, (Oceanographic seminars) CSIRO Marine and Atmospheric Research (03) 6232 5399
Natalie Kelly, (Biology/Modelling seminars) CSIRO Marine and Atmospheric Research 0438 452 483
Jillian Enraght-Moony, (seminar administrator) CSIRO Marine and Atmospheric Research (03) 6232 5320
Communications Manager, Antarctic Climate and Ecosystems CRC (03) 6226 2265
Margaret Hazelwood, Institute of Antarctic and Southern Ocean Studies (IASOS) University of Tasmania (03) 6226 2971

Last updated 8/12/09