Distribution of Tailor (Pomatomus saltatrix) Larvae along the Coast of New South Wales, Australia

1996 ◽  
Vol 47 (2) ◽  
pp. 331 ◽  
Author(s):  
AG Miskiewicz ◽  
BD Bruce ◽  
P Dixon

The distribution of tailor (Pomatomus saltatrix) larvae is described on the basis of the results of four plankton surveys undertaken in northern and central New South Wales (NSW) coastal waters. These comprised a single survey during May 1989 along the northern NSW coast and multiple surveys in January, March and May 1983 between Sydney and Brisbane. Pomatomus saltatrix larvae occurred throughout the survey period, with the highest abundances on the northern NSW coast. Most larvae were caught in mid and outer continental shelf waters at water temperatures of ≥22�C. The only known spawning locality for P. saltatrix is in the vicinity of Fraser Island in southern Queensland from August to October. The occurrence of larvae along the NSW coast from January to May indicates that the spawning season of P. saltatrix is more extensive than previously reported and that spawning occurs along the east coast of Australia in localities other than Fraser Island. Further surveys of larvae in southern Queensland and northern NSW waters, especially from August to December, are required to determine if P. saltatrix has one extended or two discrete spawning seasons along the eastern coast of Australia.

Atmosphere ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 141
Author(s):  
Emilie Aragnou ◽  
Sean Watt ◽  
Hiep Nguyen Duc ◽  
Cassandra Cheeseman ◽  
Matthew Riley ◽  
...  

Dust storms originating from Central Australia and western New South Wales frequently cause high particle concentrations at many sites across New South Wales, both inland and along the coast. This study focussed on a dust storm event in February 2019 which affected air quality across the state as detected at many ambient monitoring stations in the Department of Planning, Industry and Environment (DPIE) air quality monitoring network. The WRF-Chem (Weather Research and Forecast Model—Chemistry) model is used to study the formation, dispersion and transport of dust across the state of New South Wales (NSW, Australia). Wildfires also happened in northern NSW at the same time of the dust storm in February 2019, and their emissions are taken into account in the WRF-Chem model by using Fire Inventory from NCAR (FINN) as emission input. The model performance is evaluated and is shown to predict fairly accurate the PM2.5 and PM10 concentration as compared to observation. The predicted PM2.5 concentration over New South Wales during 5 days from 11 to 15 February 2019 is then used to estimate the impact of the February 2019 dust storm event on three health endpoints, namely mortality, respiratory and cardiac disease hospitalisation rates. The results show that even though as the daily average of PM2.5 over some parts of the state, especially in western and north western NSW near the centre of the dust storm and wild fires, are very high (over 900 µg/m3), the population exposure is low due to the sparse population. Generally, the health impact is similar in order of magnitude to that caused by biomass burning events from wildfires or from hazardous reduction burnings (HRBs) near populous centres such as in Sydney in May 2016. One notable difference is the higher respiratory disease hospitalisation for this dust event (161) compared to the fire event (24).


2021 ◽  
Vol 3 (2) ◽  
pp. 26-28
Author(s):  
Victor Chiruta ◽  
Robert Renshaw

In the State of New South Wales (NSW), Australia, the prosecution in criminal proceedings is seeking deterrence punishment for offenders manufacturing 3,4-methylenedioxyamphetamine (MDA) from the precursor helional via the ‘Two Dogs’ method (TDM). The reason given by the prosecution is a presumption that the TDM does not use any unrestricted chemicals in the synthesis of MDA. A comprehensive literature search was conducted. The relevant law was searched to fact-check the assertion of the prosecution. It was found that the prosecution was incorrect. Intermediate precursors of the TDM are restricted in NSW. However, the starting precursor helional remains unscheduled in NSW, yet helional is scheduled in some other Australian States. The prosecution’s position may play a significant factor in the sentencing proceedings of offenders. Therefore, as a matter of urgency, the prosecution must review and update its position and its submissions, keeping with the factual position in relation to the legal provisions of precursors used in the TDM.


1993 ◽  
Vol 44 (6) ◽  
pp. 811 ◽  
Author(s):  
RM Morton ◽  
I Halliday ◽  
D Cameron

Large quantities of tailor, Pomatomus saltatrix, are caught by recreational and commercial fishers in coastal waters off New South Wales and Queensland. Juvenile tailor were subject to increasing fishing mortality in Moreton Bay (Queensland) in the mid 1980s. A tagging programme, involving State Government fisheries biologists and amateur fishing clubs, was established in 1986 to examine the movement, growth rate and fisheries exploitation of juvenile tailor (<270 mm fork length) in Moreton Bay. Of 2173 juvenile tailor tagged in Moreton Bay during February-July and December 1987, 237 were recaptured over a period of 30 months, representing a recapture rate of 11%. This was a high recapture rate compared with those in similar finfish tagging studies carried out in Moreton Bay. The recaptured fish moved relatively short distances (mean�s.d., 10.2 � 15.0 km; maximum distance, 85 km). Growth data were unreliable. Estuaries such as Moreton Bay function as nursery areas for tailor prior to their movement onto open surf beaches as adult fish. A legal minimum length for tailor was introduced on the basis of this study.


1980 ◽  
Vol 28 (3) ◽  
pp. 475 ◽  
Author(s):  
PS Ward

The Rhytidoponera impressa group is revised on the basis of worker ant morphology, supplemented by information from ecological and genetic studies. Five species are recognized, all of which occur in mesic habitats along the east coast of Australia: chalybaea Emery (New South Wales, southern Queensland), confusa, sp. nov. (Victoria, New South Wales, southern Queensland) enigmatica sp. nov. (Sydney region, N.S.W.),impressa Mayr (Queensland) and purpurea Emery (north Queensland, New Guinea). R. purpurea is the most distinct morphologically. Of the remaining species, chalybaea and confusa are exceedingly similar and in some localities can be unequivocably distinguished only on the basis of electrophoretic (allozyme) differences. Biogeographical relationships of the impressa group are discussed in relation to past climatic and vegetational changes.


2021 ◽  
Author(s):  
Christopher Dowling ◽  
Anthony Morgan

The criminal mobility of outlaw motorcycle gang (OMCG) members presents a significant challenge to Australian governments and police. Examining patterns of mobility can help to better understand the opportunity structures that underpin offending by OMCGs and to drive national collaborative responses to these gangs. This study examines the prevalence and patterns of criminal mobility in a sample of almost 4,000 OMCG members in more than 400 chapters. Around one in 10 members showed evidence of criminal mobility over the long term, while more than one-third of chapters comprised criminally mobile members. Criminally mobile gang members were heavily concentrated in a small number of chapters. Patterns of criminal mobility primarily involve movements into east coast jurisdictions. New South Wales and Queensland emerged as the most common destinations for criminally mobile OMCG members.


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