Observations on interactions between indigenous Galaxiidae and introduced Salmonidae in the Lake Eucumbene catchment, New South Wales

1976 ◽  
Vol 27 (4) ◽  
pp. 551 ◽  
Author(s):  
RDJ Tilzey
Keyword(s):  
Population Structure ◽  
Catchment Area ◽  
Salmo Trutta ◽  
Historical Data ◽  
New South ◽  
New South Wales ◽  
Fish Fauna ◽  
South Wales ◽  
The One ◽  
Natural Barrier

The fish fauna of all major streams within the Lake Eucumbene catchment in south-eastern New South Wales was sampled by electrofishing or poisoning with rotenone. Galaxias coxii was found in only four, and G. olidus in only one other of the 27 streams sampled whereas the introduced salmonids (Salmo trutta or S. gairdneri, or both) occurred in all but the stream containing G. olidus. Values for galaxiid biomass were low in comparison with those for trout where both occurred together. Sampling in 1971 and 1974 in the one stream observed in 1971 to contain only G. olidus spanned an invasion by S. gairdneri and by 1974 the galaxiid species had completely disappeared below a natural barrier to trout, but above this barrier the biomass and population structure of G. olidus had not changed greatly compared to the 1971 values. This indicated that the presence of S. gairdneri was the sole environmental factor causing galaxiid disappearance below the barrier. Historical data for the catchment area suggested that the introduction and subsequent success of trout are primarily responsible for the present, much fragmented galaxiid distribution.

Electrophoretic evidence for the presence of the undescribed ‘Bellinger’ catfish (Tandanus sp.) (Teleostei : Plotosidae) in four New South Wales mid-northern coastal rivers

1997 ◽  
Vol 48 (3) ◽  
pp. 235 ◽  
Author(s):  
Dean R. Jerry ◽  
David J. Woodland
Keyword(s):  
Population Structure ◽  
New South ◽  
New South Wales ◽  
Genetic Data ◽  
Undescribed Species ◽  
Allopatric Populations ◽  
South Wales ◽  
Coastal Rivers ◽  
Allelic Differences ◽  
The Common

Genetic data were collected from eight allopatric populations of the common freshwater catfish, Tandanus tandanus. Catfish sampled from the New South Wales (NSW) mid-northern coastal rivers of the Bellinger, Macleay, Hastings and Manning exhibited fixed allelic differences from T. tandanus from the type locality (Namoi River) at four enzymatic loci (GPI-1*, EST*, UMB-1* and UMB-2*), suggesting that, collectively, catfish from these four river systems constitute an undescribed species of Tandanus. Catfish from the northern coastal rivers of NSW (Tweed, Richmond and Clarence) displayed a complex pattern of population structure that was not fully resolved by the present study. More work is needed on the complex assemblage of populations of eel-tailed catfish in the eastern coastal drainages of Australia.

A description of the anatomy of the Ornithorhynchus paradoxus

1832 ◽  
Vol 1 ◽  
pp. 68-69
Keyword(s):  
Internal Structure ◽  
Fresh Water ◽  
New South ◽  
New South Wales ◽  
The Other ◽  
Full Account ◽  
External Appearance ◽  
South Wales ◽  
The One

Two specimens of this curious animal, lately brought from New South Wales, the one male and the other female, and both full grown and perfect, having been submitted to the inspection and close examination of Mr. Home, by Sir Joseph Banks, this gentle­man has availed himself of the favourable opportunity to draw up the full account of all that is hitherto known concerning its habits, of its external appearance, and internal structure now before us. The animal has hitherto been only found in the fresh-water lakes, in the interior parts of the above-mentioned country. It does not swim upon the surface of the water, but comes up occasionally to breathe. It chiefly inhabits the banks of these lakes, and is supposed to feed in the muddy places which surround them; but the particular kind of food on which it subsists is not known.

Aspects of Lactation in the Platypus, Ornithorhynchus anatinus (Monotremata), in Waters of Eastern New South Wales.

1983 ◽  
Vol 31 (6) ◽  
pp. 881 ◽  
Author(s):  
TR Grant ◽  
M Griffiths ◽  
RMC Leckie
Keyword(s):  
New South ◽  
New South Wales ◽  
Young Leave ◽  
South Wales ◽  
Ornithorhynchus Anatinus ◽  
Significant Difference ◽  
Lactating Females ◽  
One Year ◽  
The One ◽  
First Time

Female platypuses captured in waters of eastern New South Wales were found to be lactating between the months of October and March. Lactating females were most numerous in December, accounting for 64% of females captured. Non-lactating females were taken in all months, indicating that not all females breed successfully every year. There was no significant difference between the fatty acid complement of milk taken from a platypus lactating very late in the season and those of others sampled in December at the peak of the lactation season. Some evidence exists that females do not become reproductive until at least their second year of life. Some females were found lactating in consecutive years, and others lactated one year and not in the one following. Animals of over 9 years of age are known to breed. Most juveniles were captured in February, March and April, and it is suggested that the young leave the breeding burrows for the first time in late January through to March, and become independent from their mothers, who are ceasing lactation at that time.

Chemistry of the Castlereagh River, New South Wales

1977 ◽  
Vol 28 (6) ◽  
pp. 683 ◽  
Author(s):  
WD Johnson ◽  
GL Muir
Keyword(s):  
Catchment Area ◽  
Major Ions ◽  
New South ◽  
New South Wales ◽  
Chemical Species ◽  
Chemical Characteristics ◽  
South Wales ◽  
Main River ◽  
Made In

Preliminary studies of the chemical characteristics of the Castlereagh River were made in 1973. The concentrations of the major ions vary considerably with distance from the head of the river and this variation shows a marked correlation with the geology of the catchment area. The order of dominance for ions within the system was found to be Na+ > Ca2+ > Mg2+ > K+ and HCO3- > Cl- > SO42- for the main river, and creeks in the eastern catchment gave Mg2+ > Ca2+ > Na+ > K+ and Cl- > HCO3- > SO42-. The relative amounts of the dominant chemical species are discussed and suggestions are made for the possible origins of specific components.

Soil profile development in some alluvial deposits of eastern New South Wales

Soil Research ◽  
1976 ◽  
Vol 14 (3) ◽  
pp. 305 ◽  
Author(s):  
PH Walker ◽  
RJ Coventry
Keyword(s):  
Soil Profile ◽  
New South ◽  
New South Wales ◽  
Progressive Increase ◽  
Mineral Weathering ◽  
Alluvial Deposits ◽  
Low Contrast ◽  
Flood Plains ◽  
South Wales ◽  
The One

Soil profile data from river terrace sequences on the New South Wales coast and southern highlands have been summarized. In all sequences the profiles have a progressive increase in soil development from low alluvial benches to flood plains to terraces. The general similarity of soils among these and other alluvial sequences in eastern New South Wales is the basis of a descriptive generalization in terms of five profile stages: stratic stage on low alluvial benches; cumulic stage on flood plains; low-contrast solum stage on low terraces; high-contrast solum stage on high terraces; extended subsolum stage on highest terraces. Sufficient lack of correlation occurs between sequences to suggest that the profile stages are groupings within a continuous spectrum of profile variation, the whole representing the one pedogenetic pathway. Pedogenesis in these alluvial landscapes is considered to progress through the development, first of a biotic profile which reaches a maximum within 1000 years, which is then degraded with the onset of mineral weathering and B horizon development, to a maximum solum form within 30 000 years. The rates of change of biotic and mineral profile components are sufficiently slow that only broad limits of confidence can be applied to soil stratigraphic correlations based on field morphology alone.

scholarly journals Introduction

2013 ◽  
Vol 11 (1) ◽  
pp. 89-91
Author(s):  
Deborah Rose ◽  
Peter Read
Keyword(s):  
New South ◽  
New South Wales ◽  
Sacred Sites ◽  
Aboriginal Australians ◽  
South Wales ◽  
Life Itself ◽  
War Zones ◽  
The One ◽  
The Impact

We have been talking together about concepts of place for many years, and both jointly and separately we have come up against many horrific facts of damage, trauma, loss and irretrievable devastation. Debbie encountered this first and foremost in her work with Aboriginal Australians: What happens when sacred sites are destroyed? What are the effects of being dispossessed and having one’s own existence denied? What are the consequences of extinction when the extinct ones are kin—members of the one totemic family? Debbie’s engagements with ecological loss pressed her to consider extinctions and then to think of life itself in the context of desecration. Pete encountered these facts in his wide-ranging work with loss of place: What is the impact of destroyed homes and lost country? How do people engage with deliberate erasure of the sacred in recent war zones, with the vandalised cemeteries in Havana, or with a church in New South Wales where a black mass was conducted?

Phylogeography of the freshwater catfish Tandanus tandanus (Plotosidae): a model species to understand evolution of the eastern Australian freshwater fish fauna

2008 ◽  
Vol 59 (4) ◽  
pp. 351 ◽  
Author(s):  
Dean R. Jerry
Keyword(s):  
New South ◽  
Phylogenetic Analyses ◽  
New South Wales ◽  
Fish Fauna ◽  
Freshwater Fishes ◽  
Phylogeographic Structure ◽  
Biogeographic Patterns ◽  
South Wales ◽  
Eastern Australia ◽  
Australian Freshwater

The geologically complex eastern Australian coastal margin supports the highest taxonomic diversity of freshwater fishes on the continent. However, mechanisms leading to coastal biogeographic patterns are poorly understood. A 399-bp fragment of the hypervariable mtDNA control region was sequenced from populations of eel-tailed catfish (Tandanus tandanus) to determine their phylogeographic structure and to relate this to proposed biogeographic mechanisms and landform evolution. Genetic structure in Tandanus is complex, with haplotypes clustering into three lineages: a phylogenetically distant, northern Queensland clade that is probably a new species; a mid-northern New South Wales clade corresponding to the recently discovered ‘Bellinger’ Tandanus cryptic species; and a third ‘derived’ clade T. tandanus. Phylogenetic analyses suggest that eastern Australian Tandanus originally invaded freshwaters from the coast where volcanic activity in the north and increasing aridity from the Paleocene reduced inter-fluvial connections, causing genetic divergence of northern Queensland and mid-northern New South Wales populations. The haplotypes represented by Murray–Darling drainage T. tandanus were the most derived, indicating that this species originally evolved on the coast and subsequently colonised the Murray–Darling basin. Tandanus in eastern Australia is phylogenetically structured and possibly comprises three species in this region; a pattern potentially shared by other eastern Australian freshwater fishes.

Sign in / Sign up

Export Citation Format

Share Document