Identifying individuals of the sea urchin Centrostephanus rodgersii with high-quality roe in New South Wales, Australia

2002 ◽  
Vol 58 (3) ◽  
pp. 341-348 ◽  
Author(s):  
Craig Blount ◽  
Duncan Worthington
Keyword(s):  
Sea Urchin ◽  
New South ◽  
New South Wales ◽  
High Quality ◽  
South Wales

Large-scale patterns in habitat structure on subtidal rocky reefs in New South Wales

2000 ◽  
Vol 51 (3) ◽  
pp. 255 ◽  
Author(s):  
N. L. Andrew ◽  
A. L. O'Neill
Keyword(s):  
Sea Urchin ◽  
Geographical Information Systems ◽  
Large Scale ◽  
Size Structure ◽  
New South ◽  
New South Wales ◽  
Geographical Information ◽  
South Wales ◽  
Subtidal Rocky Reefs ◽  
A Site

Aerial photography was used to estimate the representation of shallow subtidal habitats in New South Wales. Sixty sites, each between 4 and 5 hectares, were mapped with Geographical Information Systems software using ortho-rectified images digitized from 1:8000-scale photographs and ‘ground truthed’ in the field by divers. Barrens habitat covered an estimated 50% (s.e. = 3.9) of nearshore reefs between Port Stephens and Disaster Bay. Coverage of barrens habitat was greatest in Disaster Bay (68%, s.e. = 6.7) and least south of Disaster Bay (1%, s.e. = 0.3). There were clear differences among localities in the area of reef within the mapped sites; those at Cape Howe, Nadgee, and Turingal were significantly smaller in area than all others. There was no clear latitudinal trend in these differences but there was evidence of sand inundation at a site at Nadgee, where the reef was small. Differences in the densities and size-structure of the sea urchin Centrostephanus rodgersiiat 27 of the mapped sites provide a basis for testing relationships between the demography of this species and the persistence of the barrens habitat. The extensive coverage of the barrens habitat in New South Wales is likely to limit the productivity of the abalone industry. The development of a sea urchin fishery may have large impacts on habitat representation on nearshore reefs.

The economics of temperate pasture systems on the central and southern Tablelands of New South Wales

2001 ◽  
Vol 23 (2) ◽  
pp. 159 ◽  
Author(s):  
D. T. Vere ◽  
R. E. Jones ◽  
M. H. Campbell
Keyword(s):  
Native Species ◽  
Programming Model ◽  
New South ◽  
Perennial Grass ◽  
New South Wales ◽  
Perennial Grasses ◽  
Economic Returns ◽  
High Quality ◽  
South Wales ◽  
The Individual

Pastures are the basis of most forms of agricultural production on the New South Wales central and southern tablelands. Pastures occupy the bulk of the region's landmass and pasture-based livestock production annually contributes more than three-quarters of the regional gross value of rural production. Throughout the region, there is substantial variation in pasture composition, ranging from high quality introduced perennial grasses and legumes to pastures comprising mainly low quality native species. This paper examines the economics of the main categories of temperate pastures over a range of soil fertility-rainfall environments on the south-eastern tablelands areas of New South Wales. Using a linear programming model and discounted development budgets, the results demonstrate the strong influence of the environment on the economics of the individual pasture systems. The highest economic returns in both the short and longer-terms were to the introduced perennial grass pastures in most of the environments. Pastures based on introduced legumes and the high quality native species also generated sound economic returns, although there are recognised problems with the persistence of the legume pastures. Over time, the returns to the better quality native pastures compare favourably with the introduced legumes and are better suited to acidic soils than the perennial grasses. Low quality native species produced relatively poor economic returns in all environments and unfortunately, are the main pasture type in the region's less favourable environments.

Catalogue of marine brown algae (Phaeophyta) of New South Wales, including Lord Howe Island, south-western Pacific

1994 ◽  
Vol 7 (1) ◽  
pp. 1 ◽  
Author(s):  
AJK Millar ◽  
GT Kraft
Keyword(s):  
Sea Urchin ◽  
Brown Algae ◽  
New South ◽  
New South Wales ◽  
Dominant Group ◽  
Lord Howe Island ◽  
South Wales ◽  
Australian Continent ◽  
Intertidal Habitats ◽  
Species Being

This catalogue lists 139 species (in 12 orders, 26 families and 63 genera) of brown algae from New South Wales and Lord Howe Island. More than half (71) are endemic to Australia, with the remainder being very widely distributed (e.g. Europe, the Americas and Asia); 28 species have New South Wales type localities (14 from the mainland and 14 from Lord Howe Island). As a result of extensive searching of archival records, the exact locality of many 'Nov. Holl.' types is deduced to be the Sydney region of New South Wales. Four genera (Austronereia, Nemacystis, Nereia and Tomaculopsis) and 10 species are newly recorded, six species being new to the Australian continent. The largest genus represented is Sargassum, for which 37 species have been recorded, including 10 based on local types. Eleven of these Sargassum records are eliminated, the remaining 26 are in urgent need of regional monographic treatment. Eclipsed only by the Fucales (39 species in 9 genera), the order Dictyotales with 36 species in 13 genera, is the dominant group in terms of cover and possibly biomass along the mainland and at Lord Howe Island from low intertidal habitats to to depths of at least 35 m. In many areas of the seabed, brown algae and the cmstose corallines seem to be especially resilient to grazing by the sea-urchin Centrostephanis rodgersii which is presently besieging this coast.

Training in Psychiatry: An Examination of Trainee Perceptions. Part 1

1997 ◽  
Vol 31 (5) ◽  
pp. 628-640 ◽  
Author(s):  
Kasia Kozlowska ◽  
Kenneth Nunn ◽  
Pennelope Cousens
Keyword(s):  
Special Reference ◽  
New South ◽  
New South Wales ◽  
Self Report ◽  
Willingness To Accept ◽  
High Quality ◽  
Retest Reliability ◽  
South Wales ◽  
Test Retest Reliability

Objective: To look at the perceptions of New South Wales (NSW) psychiatric trainees in relation to their training experiences and the role and quality of the consultant registrar relationship. Methods: A self-report questionnaire was developed to probe trainee perceptions of the consultant–trainee relationship in all those who had completed at least 1 year of training in psychiatry (n = 138) in NSW, as well as all consultants who had completed their training in the last 5 years (n = 95). Test-retest reliability was assessed at 3 months for each of the subscales (r = 0.70–0.89) and found to be acceptable. Validity issues are discussed. Results: The results are discussed with special reference to the perceived competence, availability, breadth of knowledge and willingness to accept responsibilities of the supervising consultant. Consultant competence as a clinician was consistently rated as more important than being emotionally supportive. Conclusion: In addressing these issues, we aim to increase the degree of self-consciousness and reflectiveness of the profession of psychiatry within the Australian context. If there is to be a substantial shift for the better in trainees' perceptions of consultants, it is likely that the general consultant experience will have to be improved rather than providing small amounts of exposure to high quality consultants.

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