Featured Research

from universities, journals, and other organizations

'Hot Spots' The Key To Controlling European Carp In Australia

Date:
November 10, 2007
Source:
New South Wales Department of Primary Industries
Summary:
The ongoing drought in Australia is having at least one positive spin-off -- fewer carp are being distributed through inland waterways. Biologists are now identifying carp 'hot spots.' Known as the vermin of inland waterways, carp became a major pest in Australia in the 1970s and now make up 80 to 90 percent of the fish in inland NSW.

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

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

The reduced numbers of carp is great news for native fish, fishers and for the inland waterways of NSW.

DPI researchers at Narrandera, in conjunction with the Invasive Animals Cooperative Research Centre (CRC), are identifying what are believed to be a relatively small number of locations where huge numbers of carp breed.

Their research indicates that carp like to breed in the inland waterways that are most precious to us - our wetlands.

The concentration of carp in these hot-spots is astounding; at one site there are around 30,000 carp larvae per mega litre 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.

In total, it is estimated there are around 20 major carp breeding hot-spots within the Murray Darling Basin.

Researchers 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.

These results support the larval drift theory, indicating the carp’s 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, researchers were able to access NSW DPI’s records of freshwater fish to map the distribution of baby carp over the last 13 years.

Researchers from NSW DPI and the CRC expect that targeted carp control at these major breeding locations will have a huge impact on massively reducing carp numbers throughout regional waterways.


Story Source:

The above story is based on materials provided by New South Wales Department of Primary Industries. Note: Materials may be edited for content and length.


Cite This Page:

New South Wales Department of Primary Industries. "'Hot Spots' The Key To Controlling European Carp In Australia." ScienceDaily. ScienceDaily, 10 November 2007. <www.sciencedaily.com/releases/2007/11/071108102246.htm>.
New South Wales Department of Primary Industries. (2007, November 10). 'Hot Spots' The Key To Controlling European Carp In Australia. ScienceDaily. Retrieved September 23, 2014 from www.sciencedaily.com/releases/2007/11/071108102246.htm
New South Wales Department of Primary Industries. "'Hot Spots' The Key To Controlling European Carp In Australia." ScienceDaily. www.sciencedaily.com/releases/2007/11/071108102246.htm (accessed September 23, 2014).

Share This



More Plants & Animals News

Tuesday, September 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Cat Lovers Flock to Los Angeles

Cat Lovers Flock to Los Angeles

AFP (Sep. 22, 2014) The best funny internet cat videos are honoured at LA's Feline Film Festival. Duration: 00:56 Video provided by AFP
Powered by NewsLook.com
Washed-Up 'Alien Hairballs' Are Actually Algae

Washed-Up 'Alien Hairballs' Are Actually Algae

Newsy (Sep. 22, 2014) Green balls of algae washed up on Sydney, Australia's Dee Why Beach. Video provided by Newsy
Powered by NewsLook.com
Raw: San Diego Zoo Welcomes Cheetah Cubs

Raw: San Diego Zoo Welcomes Cheetah Cubs

AP (Sep. 20, 2014) The San Diego Zoo has welcomed two Cheetah cubs to its Safari Park. The nearly three-week-old female cubs are being hand fed and are receiving around the clock care. (Sept. 20) Video provided by AP
Powered by NewsLook.com
Chocolate Museum Opens in Brussels

Chocolate Museum Opens in Brussels

AFP (Sep. 19, 2014) Considered a "national heritage" in Belgium, chocolate now has a new museum in Brussels. In a former chocolate factory, visitors to the permanent exhibition spaces, workshops and tastings can discover derivatives of the cocoa bean. Duration: 01:00 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins