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Natural Values and Resource Use in the Limmen Bight
NATURAL VALUES AND RESOURCE USE IN THE LIMMEN BIGHT REGION © Australian Marine Conservation Society, January 2019 Australian Marine Conservation Society Phone: +61 (07) 3846 6777 Freecall: 1800 066 299 Email: [email protected] PO Box 5815 West End QLD 4101 Keep Top End Coasts Healthy Alliance Keep Top End Coasts Healthy is an alliance of environment groups including the Australian Marine Conservation Society, the Pew Charitable Trusts and the Environment Centre of the Northern Territory. Authors: Chris Smyth and Joel Turner, Centre for Conservation Geography Printing: Printed on 100% recycled paper by IMAGE OFFSET, Darwin. Maps: Centre for Conservation Geography This report is an independent research paper prepared by the Centre for Conservation Geography commissioned by, and for the exclusive use of, the Keep Top End Coasts Healthy (KTECH) alliance. The report must only be used by KTECH, or with the explicit permission of KTECH. The matters covered in the report are those agreed to between KTECH and the authors. The report does not purport to consider exhaustively all values of the Limmen Bight region. The authors do not accept liability for any loss or damage, including without limitation, compensatory, direct, indirect, or consequential damages and claims of third parties that may be caused directly or indirectly through the use of, reliance upon or interpretation of the contents of the report. Cover photos: Main - Limmen River. Photo: David Hancock Inset (L-R): Green Turtle, Recreational fishing is an important leisure activity in -
Geology and Mineral Resources of the Northern Territory
Geology and mineral resources of the Northern Territory Ahmad M and Munson TJ (compilers) Northern Territory Geological Survey Special Publication 5 Chapter 1: Introduction BIBLIOGRAPHIC REFERENCE: Ahmad M and Scrimgeour IR, 2013. Chapter 1: Introduction: in Ahmad M and Munson TJ (compilers). ‘Geology and mineral resources of the Northern Territory’. Northern Territory Geological Survey, Special Publication 5. Disclaimer While all care has been taken to ensure that information contained in this publication is true and correct at the time of publication, changes in circumstances after the time of publication may impact on the accuracy of its information. The Northern Territory of Australia gives no warranty or assurance, and makes no representation as to the accuracy of any information or advice contained in this publication, or that it is suitable for your intended use. You should not rely upon information in this publication for the purpose of making any serious business or investment decisions without obtaining independent and/or professional advice in relation to your particular situation. The Northern Territory of Australia disclaims any liability or responsibility or duty of care towards any person for loss or damage caused by any use of, or reliance on the information contained in this publication. Introduction Current as of January 2013 Chapter 1: INTRODUCTION M Ahmad and IR Scrimgeour The Northern Territory of Australia covers an area of about Chapters 2 and 3 cover Territory-wide topics; they 1.35 million km 2 and comprises ninety 1:250 000-scale respectively describe the geological framework of the topographic mapsheets. First Edition geological mapping NT and summarise the major commodities. -
A New Freshwater Catfish (Pisces: Ariidae) from Northern Australia
Rec. West. Aust. Mus. 1988,14(1): 73-89 A new freshwater catfish (Pisces: Ariidae) from northern Australia PatriciaJ. Kailola* and Bryan E. Pierce* Abstract A new species of fork-tailed catfish is described on the basis of 31 specimens collected in northern Australia between the Fitzroy River (Western Australia) and the Mitchell River (Queensland). Arius midgleyi sp. novo grows to at least 1.3 m TL and is distinguished from other Australo-Papuan ariids by a combination of charac ters including snout shape, barbel length, eye size, tooth arrangement and gill raker number and position. Comparison is made with other ariid species occurring in northern Australian rivers, including the morphologically similar A. leptaspis (Bleeker). Introduction The Timor Sea and Gulf of Carpentaria drainage systems (Lake 1971) approx imately represent the Leichhardtian zoogeographic region of Whitley (1947). The rainfall pattern in this region is dominated by the wet monsoon (occurring within the period November to April). Most rivers here traverse a flat coastal plain about 15 km wide before reaching the sea (Lake 1971). These rivers commonly possess wide flood plains and low gradients, often contracting to a chain of waterholes during the dry season; some (Gregory River; Fitzroy to Daly Rivers) have reaches of rapids or very deep gorges. The average annual discharge from this region is 69000 billion litres (Lake 1971), most of it occurring during the wet season. Five of Australia's 18 species of fork-tailed catfishes (Ariidae) are common in this northern region, yet were overlooked by Whitley (1947) and Iredale and Whitley (1938). The members of this family, which is distributed circumglobally in the tropics and subtropics, may inhabit the sea, rivers within tidal influence, or fresh waters. -
Estuarine Wetlands
ESTUARINE WETLANDS • An estuary occurs where a river meets the sea. • Wetlands connected with this environment are known as estuarine wetlands. • The water has a mix of the saltwater tides coming in from the ocean and the freshwater from the river. • They include tidal marshes, salt marshes, mangrove swamps, river deltas and mudflats. • They are very important for birds, fish, crabs, mammals, insects. • They provide important nursery grounds, breeding habitat and a productive food supply. • They provide nursery habitat for many species of fish that are critical to Australia’s commercial and recreational fishing industries. • They provide summer habitat for migratory wading birds as they travel between the northern and southern hemispheres. Estuarine wetlands in Australia Did you know? Kakadu National Park, Northern Territory: Jabiru build large, two-metre wide • Kakadu has four large river systems, the platform nests high in trees. The East, West and South Alligator rivers nests are made up of sticks, branches and the Wildman river. Most of Kakadu’s and lined with rushes, water-plants wetlands are a freshwater system, but there and mud. are many estuarine wetlands around the mouths of these rivers and other seasonal creeks. Moreton Bay, Queensland: • Kakadu is famous for the large numbers of birds present in its wetlands in the dry • Moreton Bay has significant mangrove season. habitat. • Many wetlands in Kakadu have a large • The estuary supports fish, birds and other population of saltwater crocodiles. wildlife for feeding and breeding. • Seagrasses in Moreton Bay provide food and habitat for dugong, turtles, fish and crustaceans. www.environment.gov.au/wetlands Plants and animals • Saltwater crocodiles live in estuarine and • Dugongs, which are also known as sea freshwater wetlands of northern Australia. -
Demographic Trends and Likely Futures for Australia's Tropical Rivers
Demographic Trends and Likely Futures for Australia’s Tropical Rivers Prepared by Dean Carson, Andrew Taylor and Suzanne Campbell School for Social and Policy Research, Charles Darwin University October 2009 Disclaimer TRaCK has published the information contained in this publication to assist public knowledge and discussion and to help improve the sustainable management of Australia’s tropical rivers and coasts. Where technical information has been prepared by or contributed by authors external to TRaCK, readers should contact the author(s), and conduct their own enquiries, before making use of that information. No person should act on the contents of this publication whether as to matters of fact or opinion or other content, without first obtaining specific independent professional advice which confirms the information contained within this publication. While all reasonable efforts have been made to ensure that the information in this publication is correct, matters covered by the publication are subject to change. Charles Darwin University does not assume and hereby disclaims any express or implied liability whatsoever to any party for any loss or damage caused by errors or omissions, whether these errors or omissions result from negligence, accident or any other cause. Copyright This publication is copyright. Apart from any fair dealing for the purpose of private study, research, criticism or review as permitted under the Copyright Act, no part may be reproduced, by any process, without written permission from the publisher, Enquiries -
IR 519 Preliminary Analysis of Streamflow Characteristics of The
internal report 519 Preliminary analysis of streamflow characteristics of the tropical rivers region DR Moliere February 2007 (Release status - unrestricted) Preliminary analysis of streamflow characteristics of the tropical rivers region DR Moliere Hydrological and Geomorphic Processes Program Environmental Research Institute of the Supervising Scientist Supervising Scientist Division GPO Box 461, Darwin NT 0801 February 2007 Registry File SG2006/0061 (Release status – unrestricted) How to cite this report: Moliere DR 2007. Preliminary analysis of streamflow characteristics of the tropical rivers region. Internal Report 519, February, Supervising Scientist, Darwin. Unpublished paper. Location of final PDF file in SSD Explorer \Publications Work\Publications and other productions\Internal Reports (IRs)\Nos 500 to 599\IR519_TRR Hydrology (Moliere)\IR519_TRR hydrology (Moliere).pdf Contents Executive summary v Acknowledgements v Glossary vi 1 Introduction 1 1.1 Climate 2 2 Hydrology 5 2.1 Annual flow 5 2.2 Monthly flow 7 2.3 Focus catchments 11 2.3.1 Data 11 2.3.2 Data quality 18 3 Streamflow classification 19 3.1 Derivation of variables 19 3.2 Multivariate analysis 24 3.2.1 Effect of flow data quality on hydrology variables 31 3.3 Validation 33 4 Conclusions and recommendations 35 5 References 35 Appendix A – Rainfall and flow gauging stations within the focus catchments 38 Appendix B – Long-term flow stations throughout the tropical rivers region 43 Appendix C – Extension of flow record at G8140040 48 Appendix D – Annual runoff volume and annual peak discharge 52 Appendix E – Derivation of Colwell parameter values 81 iii iv Executive summary The Tropical Rivers Inventory and Assessment Project is aiming to categorise the ecological character of rivers throughout Australia’s wet-dry tropical rivers region. -
Respiration and Energy Utii.Isat¡On in the Eggs
RESPIRATION AND ENERGY UTII.ISAT¡ON IN THE EGGS OF THE AUSTRA!.IAN FRESHWATER CROCODILE, CROCODYLUS JOHNSTAM KREFFT, 1873 PETER JOHN WHITEHEAD B.Sc. Adelaide Department of Zoology University of Adelaide A thesis submitted to the University of Adelaide in partial fulfilment of the requirements for the degree of Master of Science. APRIL 1987 F.ì*¡,-fu:f ro/+,t, i co NT ENTSi Page SUMMARY .t DECLARATION vi ACKNOWLEDGEMENTS vil 1. GENERAL INTRODUCTION AND METHODS 1 1.1. INTRODUCTION 1 1.1.1 Biology ol Crocodylus iohnstoni 1 1.1.2. Reproduction in crocodilians ...... 2 1.1.3. Physiology of eggs .3 1.1.4. Energetics of development .5 1.1.5. Outline of studies .7 1.2. MATERIALS AND METHODS 1.2.1. Collection of eggs 10 1.2.2. Egg characteristics 10 1.2.3. Egg incubation 12 1.2.4. Gas sampling and analyses .14 1.2.5. Statistics .. 14 1.2.6. Symbols, abbreviations and terminology 14 1.2.7. Permits ... 15 2. METABOLIC RATE OF EGGS AND HATCHLINGS 16 2.1. INTRODUCTION ..1 6 2.2. METHODS 20 2.2.1. Oxygen consumPtion 20 2.2.2. Gas tensions in respirometers ......... ---..........22 2.2.3. Oxygen tension and rate of consumption ............----.....22 2.2.4. Carbon dioxide production 23 2.2.5. Oxygen consumPtion of hatchlings 23 2.3. RESULTS 25 2.3.1. Oxyg en consumption of eggs 25 2.3.1.1. Rate (Voz) 25 2.3.1.2. Maximum rate of oxygen consumption ,30 2.3.1.3. Pre-hatching rate of oxygen consumption .31 2.3.1.4. -
The Role of Managed Aquifer Recharge in Developing Northern Australian Agriculture CASE STUDIES to DETERMINE the ECONOMIC FEASIBILITY
Managed Aquifer Recharge ISSN 2206-1991 Volume 2 No 3 2017 https://doi.org/10.21139/wej.2017.029 THE ROLE OF MANAGED AQUIFER RECHARGE IN DEVELOPING NORTHERN AUSTRALIAN AGRICULTURE CASE STUDIES TO DETERMINE THE ECONOMIC FEASIBILITY R Evans, L Lennon, G Hoxley, R Krake, D Yin Foo, C Schelfhout, J Simons ABSTRACT more economically attractive for horticulture production. Managed aquifer recharge (MAR) is a commonly used technique in many countries to artificially increase the INTRODUCTION This paper describes a study to consider the role recharge rate over the wet season and hence increase of MAR in developing irrigated agriculture in the the groundwater storage available during the dry season. Northern Territory (Daly catchment and Central Considering northern Australia’s long dry season and Australia) and the Pilbara in Western Australia. The relatively short wet season, MAR has the potential to play fundamental advantages of MAR based developments a major role in water resource development. over conventional water sources (typically large dams) Shallow weirs, infiltration trenches and injection bores are the cost of transporting water, lack of evaporative were considered as the main MAR methods. Five losses, seasonal variability and the scalability of sites were assessed in the Pilbara and seven across MAR projects. Conversely, impediments are believed the Northern Territory. After consideration of a range to be primarily the economic feasibility rather than of factors such as the available source water, local the technical feasibility. When compared to other hydrogeology, soil suitability and potential irrigation water supply options, MAR can be attractive both demand, most sites were considered technically feasible. -
Water Resources
Proposed Katherine to Gove Gas Pipeline Draft Environmental Impact Statement Chapter 7 Water Resources Contents 7 Water Resources ........................................................................................................................ 1 7.1 Description ................................................................................................................................... 1 7.1.1 Existing surface water resources .................................................................................... 1 7.1.2 Existing groundwater resources ...................................................................................... 3 7.2 Potential impacts of construction and operation .......................................................................... 7 7.2.1 Water extraction .............................................................................................................. 7 7.2.2 Physical changes to watercourses (including increased sedimentation) ...................... 11 7.2.3 Potential chemical contamination .................................................................................. 16 7.3 Mitigation responses and assessment of potential impacts ....................................................... 18 7.3.1 Environmental Management Plans ............................................................................... 18 7.4 Summary – predicted environmental outcomes ......................................................................... 19 Figures Figure 7-1: Surface water management areas -
CP 5470 Victoria Daly Local Government Area
1 3 5 8 1 . ver 2 a 1 Ri c 2 t 25 e 6 o 7 NT Por 2707 r 3 R S o 3 R r NT Por rNT 1 P r N A o P e r 4 4 6 98 i 2376 i T v v o i v T r P e o Sec. 1574 P R e N o P NT Por 1170 r r r 6 S NT Por 2707 T NT Por 4061 T 4 e 7 2 c N . N 3 4 S 1 2 5 e c 5 . 3 r NOTE: LOCAL GOVERNMENT AREA BOUNDARIES ARE CO-INCIDENT WITH CADASTRAL 1 9 NT Por o 5 r 2 NT Por 2376 o 9 NT Por 5088 P 6 P 7 y e r T 3 T Sec. 1 r d NT Por 4499 4707 2 i NT Por 2623 e N N S MARRAKAIa v BOUNDARIES AND ROAD CENTRELINES UNLESS OTHERWISE SHOWN. NT Por i Rive e M NT Por 2622 2623 R c 4 . Jabiru 2 NT Por NT Por 6 Sec. 2 4501 2 2881 2624 8 Sec. 2746 r NT Por 2273 A o 8 n P 2 n 1 r W NT Por 1641 T i N 2 e r Sec. e T P i o N r 599 1 v l 8 d S i o Y NOTE: LOCAL GOVERNMENT AREA BOUNDARIES FOR THE MAINLAND AND ISLANDS EXTEND 4 Sec. 2743 8 4 R m e a t A 0 c r W ldm n a R i a n W . -
ANNUAL and FINAL TECHNICAL REPORT EL25397 CALVERT PROJECT for PERIOD ENDING: 02 February 2015 Titleholder: Carpentaria Minerals
ANNUAL and FINAL TECHNICAL REPORT EL25397 CALVERT PROJECT FOR PERIOD ENDING: 02 February 2015 Robinson River SE 53-4 1:250,000 Robinson 6365 1:100,000 Calvert River 6465 1:100,000 Selby 6464 1:100,000 Titleholder: Carpentaria Minerals Pty Ltd (100% owned subsidiary of Spectrum Rare Earths Limited) Prepared for Carpentaria Minerals Pty Ltd By Laura Petrella March 2015 CONTENTS 1 SUMMARY ........................................................................................................ 1 2 LOCATION AND ACCESS ................................................................................ 2 3 TENEMENT STATUS AND OWNERSHIP ......................................................... 2 GEOLOGY ................................................................................................................ 4 4 EXPLORATION DURING 2007 ......................................................................... 6 5 EXPLORATION DURING 2008 ......................................................................... 8 6.1 Airborne Hyper Spectral Remote Sensing Survey ............................................ 8 6.2 Geochemical Sampling ................................................................................... 10 6.3 Ground Magnetics .......................................................................................... 15 6 EXPLORATION DURING 2009 ....................................................................... 18 7 EXPLORATION DURING 2010 ....................................................................... 18 7.1 Geological -
Gulf of Carpentaria
newsletter of australian wildlife conservancy wildlife matters SUMMER 2008/09 An historic partnership to save the wildlife of the Gulf of Carpentaria Terry Trewin P. Rothlisberg S. Murphy Lochman Transparencies a u s t r a l i a n w i l d l i f e saving australia’s conservancy threatened wildlife the awc mission Pictograph The mission of Australian Wildlife elcome to the Summer 2008 edition of Wildlife Matters. At a time when global financial Conservancy (AWC) is the effective Wmarkets are in turmoil, I am pleased to provide some very good news about one of your conservation of all Australian animal investments. Australian Wildlife Conservancy (AWC) continues to deliver very strong positive returns. species and the habitats in which they Of course, the value of our assets is not measured in dollars but in terms of the number of native live. To achieve this mission, our actions wildlife species and habitats that are effectively conserved on AWC sanctuaries. In this respect, are focused on: AWC is a market leader, protecting more species of birds, mammals, reptiles and amphibians, and their habitats, than any other non-government organisation in Australia. • Establishing a network of sanctuaries Over the last 12 months, we have increased the number of species and habitats that are which protect threatened wildlife and protected by AWC through the acquisition of key sanctuaries in central and northern Australia. ecosystems: AWC now manages 20 However, most importantly, we have continued to deliver effective conservation for species on sanctuaries covering over 2.5 million our sanctuaries through the implementation of practical, on-ground programs targeting feral hectares (6.2 million acres).