Navigation Links
'Hot spots' the key to controlling European carp in Australia
Date:11/8/2007

The on-going drought in Australia is having at least one positive spin-off - fewer carp are being distributed through inland waterways.

NSW Department of Primary Industries (DPI) fisheries researchers at Narrandera are identifying carp hot-spots in conjunction with the Invasive Animals Cooperative Research Centre (CRC).

Known as the vermin of inland waterways, carp became a major pest in Australia in the 1970s and now make up 80 to 90% of the fish in inland NSW.

NSW DPI researchers are identifying what are believed to be a relatively small number of locations where huge numbers of carp breed.

Fisheries scientist Dean Gilligan said the carp are concentrated in these hot-spots, and at one site there were about 30,000 carp larvae per megalitre of water.

Ten hot-spots have been identified, and four of these are internationally recognised wetlands - the Gwydir wetlands, Namoi wetlands, Barmah-Millewa forest and the Macquarie Marshes.

The researchers estimate there are around 20 major carp breeding hot-spots within the Murray Darling Basin.

They have found that carp like to breed in shallow, swampy areas that are regularly inundated by water - heavy rain and floods enable the carp to disperse into adjoining river channels.

The results support the larval drift theory, indicating the carps need for high water flow events to disperse their larvae.

The drought initially hindered this research, because the lack of water flow meant carp movements could not be tracked.

However, the researchers then used NSW DPIs records of freshwater fish to map the distribution of baby carp over the last 13 years.

It is expected that targeted carp control at these major breeding locations will have a huge impact on massively reducing carp numbers in regional waterways.

The CRC is currently investigating a range of promising control measures, including techniques designed to trap carp but not native fish, and also methods to sabotage carp breeding.


'/>"/>

Contact: Joanne Finlay
joanne.finlay@dpi.nsw.gov.au
61-262-913-171
New South Wales Department of Primary Industries
Source:Eurekalert

Related biology news :

1. Hydrothermal vents: Hot spots of microbial diversity
2. Controlling for size may also prevent cancer
3. UT Southwestern researchers identify hundreds of genes controlling female fertility
4. Last chance for media to register for ECCO 14 -- the European Cancer Conference
5. 2 French scientists win European award for communication
6. Three-way mating game of North American lizard found in distant European relative
7. European lead in reading past climates from ice cores
8. Invasive Australian jellyfish sighted in Gulf of Mexico in summer 2007
9. Emory paleontologist reports discovery of carnivorous dinosaur tracks in Australia
10. Australian researchers develop treatment to treat obesity
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/23/2016)... 2016 Einzigartige ... und Stimmerkennung mit Passwörtern     ... MESG ), ein führender Anbieter digitaler Kommunikationsdienste, ... SpeechPro zusammenarbeitet, um erstmals dessen Biometrietechnologie einzusetzen. ... Möglichkeit angeboten, im Rahmen mobiler Apps neben ...
(Date:3/22/2016)... , PROVO and ... -- Newborn Screening Ontario (NSO), which operates the highest ... for molecular testing, and Tute Genomics and UNIConnect, leaders ... technology respectively, today announced the launch of a project ... sequencing (NGS) testing panel. NSO has ...
(Date:3/18/2016)... -- --> --> Competitive ... Unmanned Vehicles, Physical infrastructure and Perimeter Surveillance & Detection Systems ... security market and the continuing migration crisis in the ... has led visiongain to publish this unique report, which ... defence & security companies in the border security market ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... 2016  The Prostate Cancer Foundation (PCF) is pleased to announce ... cures for prostate cancer. Members of the Class of 2016 were selected from ... Read More About the Class of 2016 PCF Young Investigators ... ... ...
(Date:6/23/2016)... ... June 23, 2016 , ... STACS DNA Inc., the sample tracking software ... State Crime Laboratory, has joined STACS DNA as a Field Application Specialist. , ... Tremblay, President and COO of STACS DNA. “In further expanding our capacity as a ...
(Date:6/23/2016)... 2016 Andrew D ... http://doi.org/10.17925/OHR.2016.12.01.22 Published recently in ... from touchONCOLOGY, Andrew D Zelenetz , discusses ... care is placing an increasing burden on healthcare ... therapies. With the patents on many biologics expiring, ...
(Date:6/23/2016)... ... June 23, 2016 , ... Velocity Products, a division ... tuned and optimized exclusively for Okuma CNC machining centers at The International Manufacturing ... collaboration among several companies with expertise in toolholding, cutting tools, machining dynamics and ...
Breaking Biology Technology: