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Inland Fisheries Service News

This section features the latest news stories from the Inland Fisheries Service .
Sterile Judas carp released into Lake Sorell

Sterile Judas carp released into Lake Sorell

Oct 16, 2013

With a view to assist the eradication of carp from Lake Sorell, surgically or chemically sterilised male Judas carp (implanted with radio tags) were successfully released into Lake Sorell on Tuesday 15 Oct 2013. The location of each fish was monitored the following day. To our pleasant surprise they have spread with some traversing as far as 6.5 km from the point of release showing their ability to move and assimilate quickly. However, it is not known yet whether these sterilised Judas carp will behave and perform as well as the previous reproductively viable Judas carp in betraying the locations of feral carp. This will become clear over the forthcoming summer season. If they are like most other species, including humans, very little will have changed in their virility and interest in pursuing females and betraying their locations, but the risk of inadvertently contributing to breeding would be greatly reduced or eliminated. The project is undertaken in collaboration with National Centre for Marine Conservation and Resource Sustainability, UTas and is funded by the Fisheries Research and Development Corporation.

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Inland Fisheries Officer nabs rubbish dumper

Inland Fisheries Officer nabs rubbish dumper

Oct 10, 2013

An Inland Fisheries Officer on patrol of the Craigbourne Dam area noticed a flat tray vehicle parked at the side of a road with used carpet on tray. The registration of the vehicle was taken and on return a short time later the Officer found the carpet deposited over an armco railing and on to roadside land. This location is known for rubbish dumping. The Officer then located and intercepted the vehicle being driven south of Campania. The vehicle was stopped and the driver spoken to regarding the littering offense where a number of admissions were made. The driver was issued with an infringement notice and was made to return to the site to collect his load. Inland Fisheries Officers are authorised under a range of legislation including the Litter Act 2007.

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Sterile carp receive radio transmitters in ongoing fight to eradicate

Sterile carp receive radio transmitters in ongoing fight to eradicate

Oct 10, 2013

In an exciting breakthrough male carp that have been sterilised are being implanted with radio transmitters. Juvenile male carp, captured from Lake Sorell, were identified using ultrasound in trials undertaken last summer and then allowed to mature to a point where they were producing sperm in autumn. A number of fish were then either surgically or chemically sterilised. The fish were allowed to recover over winter with regular checks to monitor their condition. The warming water temperatures in spring would normally see an increase in sperm production as the fish prepare to spawn. This has allowed a check to be made to test the success of the sterilisation techniques that have been applied. Today carp that have been monitored and identified as sterile were implanted with radio transmitters containing an individual radio frequency built by Advance Telemetry Systems. The “Judas fish” will be held for a week to ensure recovery at which point they will be released back into the wilds of Lake Sorell. Over the coming months the sterile fish will be monitored alongside non sterile transmitter fish to ensure that the sterilisation process has not altered their behaviour as they will become a vital part of the strategy to catch the last female carp from the lake in coming years. The timing of this deployment has been planned to use a carp sex bias that is currently occurring in Lake Sorell where the young male carp have begun to mature yet the females appear to be a couple of years away from being able to spawn. This provides an opportunity to trial sterile/non sterile “Judas carp” side by side and assess their ability to betray the locations of wild carp in the lake. It should ensure that when the non sterile transmitter fish are removed next year that the program has method of safely tracking and following carp movements throughout the lake and enable the targeting of the last females while avoiding the risk of “Judas” males being involved in spawning events. This project is being coordinated by consulting scientist Dr Jawahar Patil, veterinary surgeon Dr Andrew Nicholson, Assoc Prof Dr John Purser and Honours student Mark Sangtain from UTAS with funding supplied by the Fisheries Research Development Corporation and the Inland Fisheries Service.

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The Lake Augusta Road opened today 9 October 2013

The Lake Augusta Road opened today 9 October 2013

Oct 08, 2013

The gate which closes off the vehicle access to the Nineteen Lagoons area of the Western Lakes is now (9 October 2013) open.

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Navigation light at Arthurs Lake dam wall boat ramp removed temporarily

Navigation light at Arthurs Lake dam wall boat ramp removed temporarily

Oct 07, 2013

The navigation light at Arthurs Lake dam wall boat ramp has been temporarily removed. It will be upgraded and replaced later in the year.

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With rains and rising water levels anglers should exercise caution

With rains and rising water levels anglers should exercise caution

Oct 02, 2013

With heavy rainfall events over the last weeks (last two weeks of September), the rivers in many catchments have risen markedly. Catchments with Hydro Tasmania impoundments in particular have been effected, with the Mersey-Forth system in flood and spilling at Lake Barrington and Lake Paloona dams. The River Derwent catchment impoundments are all full and Meadowbank Lake is likely to spill soon. With all this water flow there will be wooded debris such as trees and logs that will be a hazard to boating and wading anglers. Anglers are asked to exercise caution whilst boating or wading as high flows and floating debris combine to provide hazardous boating conditions.

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Huntsman Lake reopened to public access

Huntsman Lake reopened to public access

Oct 02, 2013

After a closure due to high water levels the lake is now reopened to public access.

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Rainbow trout waters open midnight tonight

Rainbow trout waters open midnight tonight

Sep 27, 2013

Whilst the majority of rivers and lake opened on 3 August 2013 for the 2013/2014 angling season, there are a few that remain closed until the Saturday 28 September 2013. These waters are known as rainbow trout waters and close 1 June 2014. These waters are; Junction Lake, Lake Meston, Lake Youd, Dee Lagoon, Lake Rowallan, Lake Skinner, the Weld rivers (both North and South), parts of the River Leven and the Mersey River above Lake Rowallan. Please check the 2013/2014 Tasmanian Inland Fishing Code that you should have as part of your licence purchase for regulations regarding these waters as some are restricted to artificial methods only and others are discrete sections of rivers. This code is also available from this website.

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An upgrade to Austins Ferry boat ramp

An upgrade to Austins Ferry boat ramp

Sep 26, 2013

The popular, well used boat ramp at Austins Ferry has recently received a significant upgrade. The new pontoon was jointly funded by MAST and Glenorchy City Council at a total cost $102,000. The upgrade replaces the aging 6 m x 3 m pontoon that existed previously with a new pontoon, which at 19 metres long triples capacity on the old system. The new pontoon is adjacent and parallel to the boat ramp and should require little or no maintenance over its 40 year plus design life. This upgrade coincides with the arrival of both whitebait and sea-run trout in the River Derwent and is an ideal location to launch when fishing the middle reaches of the river. The ramp is located at Austins Ferry Road off Main Rd. 1 km north of Claremont.

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The 2013 whitebait season starts Tuesday 1 October

The 2013 whitebait season starts Tuesday 1 October

Sep 25, 2013

You can now purchase your whitebait licence online for the upcoming season. Whitebait season runs from 1 October 2013 to 11 November 2013 and you must have a licence to take whitebait. To get started, click on the following link: https://www.ifs.tas.gov.au/ols/purchase-transaction Select, Purchase a New Licence Enter, Your Name and Date of Birth Select, 2013 Whitebait Season And you are on your way to purchasing your 2013 whitebait licence. Your receipt number becomes your tag number which is required to be attached to your net.

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