Please select your home edition
Edition
Radio Spectrum Management - 2

Locating the origin of Victoria’s King George whiting

by DPI Victoria on 14 Apr 2013
Variation in the chemistry of King George whiting otoliths is being used to determine the source population of Victorian whiting and the movement patterns of juvenile whiting among bays and inlets DPI Victoria .
In July 2011, Fisheries Victoria, the University of Melbourne, Deakin University and the South Australian Research and Development Institute initiated a 3-year research project to determine the source of Victoria’s King George whiting population and the movement patterns of juvenile whiting among Victorian bays and inlets.

Understanding the population structure of King George whiting in Victoria and how it relates to the South Australian whiting fishery will allow for optimal management of this important recreational and commercial species.

Previous research by Fisheries Victoria has indicated that:

• Spawning aggregations and young larvae are only found in South Australia
• The spawning source of whiting in Victorian bays and inlets is hundreds of kilometres to the west
• Whiting larvae can drift in the water column for 3-4 months allowing for large distances to be travelled.






The current research project will use two novel techniques:

• Otolith microchemistry: otoliths (earbones) in fish grow daily and absorb trace elements from the surrounding water. Trace elements are unique to specific water bodies, so we can determine if King George whiting from South Australia and Victoria were spawned or spent time in the same water body based on the trace metal variation in their otoliths. This technique will be used to determine the source population of Victorian whiting and the movement patterns of juvenile whiting among bays and inlets in Victoria.

• Genetics: microsatellite markers are small sequences in DNA that are inherited and can be used to determine family linkages. We will use microsatellite markers extracted from tissue to determine if there are genetic differences in the populations of whiting in South Australia and Victoria and among the bays and inlets in Victoria.

This research project is funded by the Fisheries Research and Development Corporation, the Victorian Department of Primary Industries and recreational fishing licence DPI Victoria

Pantaenius - Worldwide SupportKiwi Yachting - LewmarGAC Pindar Freight

Related Articles

Auckland On the Water Boat Show - Images from Day3
The Auckland On the Water Boat Show pulled a great crowd again today The Auckland On the Water Boat Show pulled a great crowd again today, with the threatening weather which dogged the last couple of hours of yesterday's Show, being thankfully absent. The Show finished Sunday at 5.00pm - catch some great exhibits - and it is great fun for kids. Don't miss having a look at HMNZS Hawea tied alongside.
Posted today at 1:18 pm
'The best day of my life' - Auckland On the Boat Show - Day 3
Despite the forecast of dicey weather, visitors to the Auckland On the Water Boat Show were rewarded with a good day Despite a less than optimist forecast of more inclement weather, visitors to the Auckland On the Water Boat Show were rewarded with a good day to be at the Show – overcast skies, but no rain and plenty to see and do. Held for the first time in the school holidays, the kids – who get free entry – had a great day.
Posted today at 4:55 am
Auckland on the Water Boat Show - Showers don't deter crowds on Day 2
A tsunami of boating fans of all persuasions swept through the gates of the Auckland On the Water Boat Show this morning A tsunami of boating fans of all persuasions swept through the gates of the Auckland On the Water Boat Show when they opened this morning. Whether it was a result of the morning weather forecast or Friday was just a convenient day - who knows?
Posted on 30 Sep
New Zealand Maritime radio channels set to change on 1 October
Before you head out on the water next summer there are some important maritime radio changes you need to know about. Before you head out on the water next summer there are some important maritime radio changes you need to know about. On 1 October 2016, New Zealand is changing some maritime VHF repeater channels, and NowCasting weather services, to make space for new international ship tracking and data services, and to make sure our VHF radio services are compatible with the rest of the world.
Posted on 20 Sep
The sound of a healthy reef
A new study from WHOI help researchers understand ways that marine larvae use sound as cue to settle on coral reefs A new study from the Woods Hole Oceanographic Institution (WHOI) will help researchers understand the ways that marine animal larvae use sound as a cue to settle on coral reefs. The study, published on August 23rd in the online journal Scientific Reports, has determined that sounds created by adult fish and invertebrates may not travel far enough for larvae —which hatch in open ocean
Posted on 31 Aug
A slithery ocean mystery
One sentence in a New York Times article caught Larry Pratt’s eye and set the scientific investigation in motion. One sentence in a New York Times article caught Larry Pratt’s eye and set the scientific investigation in motion. The story was about fishermen harvesting juvenile eels in coastal waters of the Gulf of Maine and selling them for more than $2,500 a pound, mostly for unagi in Asian fish markets.
Posted on 30 Aug
TowBoatUS Ocean City removes harmful fishing nets
Earlier this summer, three miles of open water was all that separated two efforts to protect and nurture marine life Earlier this summer, three miles of open water was all that separated two efforts to protect and nurture marine life on the Atlantic Coast.
Posted on 12 Aug
WHO statement on Zika virus
The third meeting of the EC convened by the Director-General under IHR 2005 regarding microcephaly and Zika virus The third meeting of the Emergency Committee (EC) convened by the Director-General under the International Health Regulations (2005) (IHR 2005) regarding microcephaly, other neurological disorders and Zika virus was held by teleconference on 14 June 2016, from 13:00 to 17:15 Central European Time.
Posted on 16 Jun
Have your say at Hawkesbury Shelf Marine Bioregion assessment
Marine Estate Management Authority undertakes assessment to develop options to enhance marine biodiversity conservation. The Marine Estate Management Authority has developed eight suggested management initiatives to enhance marine biodiversity conservation and help reduce priority threats.
Posted on 14 Apr
Zika virus situation report
From 1 January 2007 to 16 March 2016, Zika virus transmission was documented in a total of 59 countries and territories. From 1 January 2007 to 16 March 2016, Zika virus transmission was documented in a total of 59 countries and territories. Cuba and Dominica are the latest to report autochthonous (local) transmission of Zika virus on 14 and 15 March, respectively. Five of these countries and territories reported a Zika virus outbreak that is now over.
Posted on 2 Apr