Discards from the commercial gillnet fishery for dusky flathead, Platycephalus fuscus, in New South Wales, Australia: spatial variability and initial effects of change in minimum legal length of target species

2004 ◽  
Vol 11 (5) ◽  
pp. 323-333 ◽  
Author(s):  
C. A. Gray ◽  
D. D. Johnson ◽  
D. J. Young ◽  
M. K. Broadhurst
Keyword(s):  
Spatial Variability ◽  
New South ◽  
New South Wales ◽  
Target Species ◽  
South Wales

Spatial variability in the nekton of a canal estate in southern New South Wales, Australia, and its implications for estuarine management

1995 ◽  
Vol 46 (4) ◽  
pp. 715 ◽  
Author(s):  
MP Lincoln Smith ◽  
PMH Hawes ◽  
FJ Duque-Portugal
Keyword(s):  
Spatial Variability ◽  
New South ◽  
New South Wales ◽  
South Wales ◽  
Estuarine Management ◽  
Main Canal ◽  
Number Of Individuals

The nekton of a canal development in NSW, Australia, is described. Two sites each were sampled from the main canal and in end canals. The main canal had more species of fish than did the end canals, but the number of individuals was similar between locations. Abundance of particular species showed three patterns: species that were more abundant in either location, species that varied between locations and sites, and species that did not differ significantly in abundance. There was little evidence that the nekton from the end canals, which are presumably less well flushed, was depauperate compared with the main canal. Surveys of nekton in canal estates should incorporate spatial variability at two or more scales so that the effects of these human developments can be assessed properly.

An analysis of bait-take and non-target impacts during a fox-control exercise

1998 ◽  
Vol 25 (2) ◽  
pp. 147 ◽  
Author(s):  
Nick Dexter ◽  
Paul Meek
Keyword(s):  
New South ◽  
New South Wales ◽  
The Other ◽  
Target Species ◽  
South Wales ◽  
Poison Baiting ◽  
Heath Forest ◽  
Free Feeding ◽  
Fox Control ◽  
Control Exercise

The effectiveness of a fox-control exercise at the Beecroft Peninsula, New South Wales, was evaluated by examining the change in proportion of baits taken during free-feeding and after lethal baiting in four different habitats (heath, forest, coastal scrub, beach), and the change in number of radio-collared foxes alive during the course of the baiting exercise. The change in proportion of baits taken by non-target species was also examined over the course of the study. Bait take declined by 97% from the initiation of poison baiting to the final day of poison baiting eight days later with significantly more baits being taken in heath than in any other habitat. Four out of six radio-collared foxes died on the first day of poison baiting while the other two foxes died within ten days of the start of the poison-baiting session. Black rats, currawongs and ravens took a small number of baits throughout the baiting exercise.

Use of infrared digital cameras to investigate aspects of the social behaviour of cryptic species

2004 ◽  
Vol 31 (6) ◽  
pp. 645 ◽  
Author(s):  
Andrew W. Claridge ◽  
Greg Mifsud ◽  
James Dawson ◽  
Michael J. Saxon
Keyword(s):  
Cryptic Species ◽  
Social Behaviour ◽  
National Park ◽  
New South ◽  
New South Wales ◽  
Digital Cameras ◽  
Target Species ◽  
South Wales ◽  
The Social ◽  
Technical Details

In this paper we report on the application of infrared digital cameras to investigate aspects of the breeding biology of the spotted-tailed quoll, an endangered marsupial carnivore. Technical details are provided about the cameras, which were deployed remotely at two ‘latrine’ sites used by the target species within Kosciuszko National Park in southern New South Wales, Australia. Examples of images captured by the cameras are presented, with notes on possible application of the same technology to better understand the social behaviour of rare and cryptic species.

Influence of 1080 bait colour on acceptability by target species and removal by non-target animals.

1985 ◽  
Vol 7 (2) ◽  
pp. 140
Author(s):  
AK Rathore
Keyword(s):  
National Parks ◽  
New South ◽  
New South Wales ◽  
Target Species ◽  
Secondary Poisoning ◽  
South Wales

Baiting trials with meat and carrot baits poisoned with Compound 1080 were carried out on the periphery of three National Parks in New South Wales. The number of meat baits removed by birds was variable, but averaged 28% (+ 11). Colouring the meat baits green significantly reduced the number takenby birds, but did not affect their attractiveness to dogs and foxes. Poisoned carrot dyed green was as effectwe as undyed carrot in controlling rabbits. Reduction in rabbit populations using quarter concentration 1080 (0.083 mg 1080/ g of carrot) was comparable to that from usmg the standard concentration 1080 (0.333 mg 1080/ g of carrot). The use of lower concentration of 1080 in poisoning rabbits is more acceptable ecologically as it may reduce the risk of primary and secondary poisoning of non-target fauna.

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