DOCSLIB.ORG

Macquarie Perch Habitat Restoration Project – Stage 1

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Macquarie Perch Habitat Restoration Project – Stage 1 Macquarie Perch Habitat Restoration Project – Stage 1 Introduction The Lachlan Catchment Management Authority (LCMA) has initiated a large project on the Lachlan River above Wyangala Dam to save the endangered Macquarie perch Macquaria australasica also known as Mountain perch or Black bream. Figure 1: Macquarie perch Macquaria australasica (source: Gilligan & Heath, 2008) Known as the Macquarie Perch Habitat Rehabilitation Project, it involves local landholders, Upper Lachlan Council, Tablelands LHPA and the Onerwal Lands Council agreeing to improve the habitat for native fish along the Lachlan River. This has included restoring native vegetation on the banks (riparian area), construct erosion control works, instal alternate stock water supply and in one area recreating desirable habitat using recently felled trees (snags) from nearby road works to place in strategic locations. The project is the result of detailed survey work undertaken by Department of Primary Industries (DPI) Fisheries. In 2006 DPI Fisheries identified four separate populations of the endangered native fish species in the Upper Lachlan and Abercrombie Rivers (Gilligan & Heath, 2008) (Figure 4). They also found Lachlan catchment contains the most significant remaining inland (Murray Darling Basin) population of the endangered Macquarie perch population in NSW (NSW DPI, unpublished data, 2008). A partnership was entered into with the LCMA to undertake a survey of habitat characteristics that the Macquarie Perch preferred to live and breed in. Gilligan & Heath (2008) found that the presence of Macquarie Perch was linked to a few key characteristics. These included the presence of snags (submerged or partly submerged trees) providing protection and food source (macroinvertebrates), run and riffle sequences with cobble substrate, shallow reaches (<2m deep), shade minimising fluctuations in water temperature and low sediment loads (erosion). They avoided sandy substrate, deep pools and reaches with active erosion. LCMA & DPI Fisheries determined that the best focus for investment was to link isolated populations in the Lachlan River by habitat rehabilitation. A judgement was made to first stabilise and perhaps increase these populations before attempting to link them to the Abercrombie population. The LCMA approved a budget for $737,000 of which $578,000 was allocated to fund onground works in cost-share arrangements with landholders over the target area (Figure 2). It was recognised by the proponents that an additional eight native aquatic threatened species and a further four native fish species could benefit from the rehabilitation measures implemented as part of the project (LCMA, 2008). Project Area The project is located in NSW in the Upper Lachlan catchment above Wyangala Dam (Figure 4). As a result of the population survey and habitat assessment, the Macquarie Perch Habitat Rehabilitation Project saw an area targeted between Gunning and Wyangala Dam The target area comprised a 91km section of Lachlan River that included the three isolated populations of Macquarie perch. Figure 2 shows a typical reach that provided good habitat features (snags, shade, shallow <2m deep and stable banks). There were also less desirable features such as excessive sediment load (sediment slugs) contained in the target area (Figure 3) Figure 2: Good habitat for native fish on the Figure 3. Sand (sediment slug) covering cobble Lachlan – “Numby” Photo Fin Martin substrate “Battery Crossing” Photo Geoff Minchin Late 2007 the LCMA approached landholders along the Lachlan and developed projects aimed at fencing and revegetating sections, providing off-stream water points and soil conservation works for significant erosion sites. A strategic snagging project was also carried out in early 2008 on a 2km section of the Lachlan to recreate suitable habitat using ‘snags’ and rock. Snags offer refuge to native fish and are seen as an essential characteristic of good habitat in the Lachlan River. Upper Lachlan Council provided suitable felled trees and rock for erosion protection from recent roadworks close to the project. Abercrombie River Lachlan River Figure 4: Study area detailing Macquarie perch populations and target area for onground works (source: adapted from Gilligan, D. and Heath, P. 2008) A total budget of $737,000 was expended in a twelve-month period following the study results. This was specifically aimed at improving habitat characteristics along the targeted 91km section of the Lachlan River. Eleven landholders entered into agreements with the Lachlan CMA to implement on-ground works that is outlined in Table 1. Table 1: Summary of onground works (source: LCMA, 2008) Onground works Result Habitat assessment 323km of river - $99,000 Fencing for stock management 54 km of stream (38km of Lachlan River) Conservation of existing habitat 572 ha ($336,000) Revegetation for habitat enhancement 110 ha ($170,000) Improved grazing management 2134 ha Erosion control reducing point source sediment 24 km ($15,000) Snagging for fish habitat 83 snags + rock ($57,000) Habitat assessment (2008/09) 120 km of river ($60,000) With the exception of some tree planting (planned for Spring 2008) all works have been complete and management conditions in the LCMA landholder agreements are being met. Results showed 42% of target area had works to rehabilitate habitat with an additional 16km of tributaries rehabilitated. Extensive baseline data collection at the beginning of the project will ensure outcomes can be monitored by both LCMA (onground works) and DPI Fisheries (fish population changes) into the future. An ongoing monitoring program has been agreed to by DPI Fisheries who will survey fish populations every three years to determine if onground works are effective in enhancing populations of the Macquarie perch (and other native species). LCMA will monitor site condition for 10 years to ensure management is enhancing habitat values. Ongoing funding is being actively sought by the LCMA to continue linking the populations of Macquarie perch with suitable habitat. It is estimated that it will take $1.8-2.2 million to fence, revegetate and supply alternate stock water to the remaining reaches to complete rehabilitation and link the four populations of Macquarie perch. In 2008/09 further habitat and species assessment will take place in the Crookwell River and Blakney Creek (known site of the endangered Pygmy Perch) to determine if other populations exist in tributaries to the Lachlan River. 5 key points 1. The Abercrombie and Lachlan Rivers above Wyangala Dam contain the most significant inland (Murray Darling Basin) population of the endangered Macquarie perch population in NSW. 2. Department of Primary Industries - Fisheries and Lachlan Catchment Management Authority were able to determine the preferred habitat features of the Macquarie perch and develop a rehabilitation strategy for the lachlan and Abercrombie rivers above Wyangala Dam. 3. The Lachlan Catchment Management Authority was able to provide incentives of $578,000 to landholders for onground works in less than twelve months entering into 11 agreements. This resulted in 42km of stream rehabilitated, 682ha of native vegetation conserved or revegetated, 2134ha of improved grazing management adjacent to the river, 24km of erosion prevention to flowlines and 83 snags placed for improved habitat. 4. An additional eight native aquatic threatened species and a further four native fish species could benefit from the rehabilitation measures implemented as part of the project. 5. An ongoing monitoring program will ensure that outcomes (changes to fish populations) of the project will be recorded and that works will be maintained over the life of the landholder agreements. Fish species identified in the Upper Lachlan catchment Native species Present Potential Threatened 1 Macquarie perch Macquaria australasica Silver perch Bidyanus bidyanus Purple-spotted gudgeon Mogurnda adspersa Southern pygmy perch Nannoperca australis River blackfish Gadopsis marmoratus A water snail Notopala sublineata Murray cod Maccullochella peelii Freshwater catfish Tandanus tandanus Trout cod Maccullochella macquariensis Olive perchlet Ambassis agassizii Golden perch Macquaria ambigua Flat headed gudgeon Philypnodon grandiceps Australian smelt Retropinna semoni Murray jollytail Galaxias rostratus Dwarf flat-headed gudgeon Philypnodon macrostomus Carp gudgeon Hypseleotris spp. Exotic species Brown trout Salmo trutta Carp Cyprinus Carpio Mosquito fish Gambusia holbrooki Goldfish Carassius auratus Rainbow trout Oncorhynchus mykiss Redfin Perca flluviatilis 1 Lintermanns, M. (2007). Fishes of the Murray-Darling Basin – An introductory guide, MDBC, Canberra, ACT. Enhancement works targeted 6 threatened native fish species present Macquarie Perch Macquaria australasica, Silver Perch Bidyanus bidyanus, Purple-Spotted Gudgeon Mogurnda adspersa, Southern Pygmy Perch Nannoperca australis, River Blackfish Gadopsis marmoratus and a water snail Notopala sublineata.(Present) 4 threatened native fish species that have similar habitat potential and were belived to be present Freshwater catfish Tandanus tandanus, Trout cod Maccullochella macquariensis, Murray Cod Maccullochella peelii, Olive Perchlet Ambassis agassizii (Potential) and 6 non-threatened species: Golden Perch Macquaria ambigua, , Australian Smelt Retropinna semoni, Flat Headed Gudgeon Philypnodon grandiceps, Murray jollytail Galaxias rostratus, Dwarf Flat-Headed Gudgeon Philypnodon macrostomus, Carp Gudgeon Hypseleotris spp. Habitat charateristics mapped on the Lachlan, Abercrombie, Crookwell, Retreat Rivers & Blakney’s Ck Category Sub-category Mesohabitat Run Rapid Riffle Pool Dry Substrate Sand Gravel Cobble Boulder Bedrock Mud Rocks Small Simple Small Complex Large Simple Large Complex Snags Large simple Large complex Small simple Small complex Erosion Willows Undercuts Macrophytes Photo point Thalweg Depth at each 1km intersection Snag placement locations at “Numby” .
Load more

Recommended publications
  • Talk Wild Trout Conference Proceedings 2015
    Talk Wild Trout 2015 Conference Proceedings 21 November 2015 Mansfield Performing Arts Centre, Mansfield Victoria Partners: Fisheries Victoria Editors: Taylor Hunt, John Douglas and Anthony Forster, Freshwater Fisheries Management, Fisheries Victoria Contact email: [email protected] Preferred way to cite this publication: ‘Hunt, T.L., Douglas, J, & Forster, A (eds) 2015, Talk Wild Trout 2015: Conference Proceedings, Fisheries Victoria, Department of Economic Development Jobs Transport and Resources, Queenscliff.’ Acknowledgements: The Victorian Trout Fisher Reference Group, Victorian Recreational Fishing Grants Working Group, VRFish, Mansfield and District Fly Fishers, Australian Trout Foundation, The Council of Victorian Fly Fishing Clubs, Mansfield Shire Council, Arthur Rylah Institute, University of Melbourne, FlyStream, Philip Weigall, Marc Ainsworth, Vicki Griffin, Jarod Lyon, Mark Turner, Amber Clarke, Andrew Briggs, Dallas D’Silva, Rob Loats, Travis Dowling, Kylie Hall, Ewan McLean, Neil Hyatt, Damien Bridgeman, Paul Petraitis, Hui King Ho, Stephen Lavelle, Corey Green, Duncan Hill and Emma Young. Project Leaders and chapter contributors: Jason Lieschke, Andrew Pickworth, John Mahoney, Justin O’Connor, Canran Liu, John Morrongiello, Diane Crowther, Phil Papas, Mark Turner, Amber Clarke, Brett Ingram, Fletcher Warren-Myers, Kylie Hall and Khageswor Giri.’ Authorised by the Victorian Government Department of Economic Development, Jobs, Transport & Resources (DEDJTR), 1 Spring Street Melbourne Victoria 3000. November 2015
    [Show full text]
  • Fisheries Guidelines for Design of Stream Crossings
    Fish Habitat Guideline FHG 001 FISH PASSAGE IN STREAMS Fisheries guidelines for design of stream crossings Elizabeth Cotterell August 1998 Fisheries Group DPI ISSN 1441-1652 Agdex 486/042 FHG 001 First published August 1998 Information contained in this publication is provided as general advice only. For application to specific circumstances, professional advice should be sought. The Queensland Department of Primary Industries has taken all reasonable steps to ensure the information contained in this publication is accurate at the time of publication. Readers should ensure that they make appropriate enquiries to determine whether new information is available on the particular subject matter. © The State of Queensland, Department of Primary Industries 1998 Copyright protects this publication. Except for purposes permitted by the Copyright Act, reproduction by whatever means is prohibited without the prior written permission of the Department of Primary Industries, Queensland. Enquiries should be addressed to: Manager Publishing Services Queensland Department of Primary Industries GPO Box 46 Brisbane QLD 4001 Fisheries Guidelines for Design of Stream Crossings BACKGROUND Introduction Fish move widely in rivers and creeks throughout Queensland and Australia. Fish movement is usually associated with reproduction, feeding, escaping predators or dispersing to new habitats. This occurs between marine and freshwater habitats, and wholly within freshwater. Obstacles to this movement, such as stream crossings, can severely deplete fish populations, including recreational and commercial species such as barramundi, mullet, Mary River cod, silver perch, golden perch, sooty grunter and Australian bass. Many Queensland streams are ephemeral (they may flow only during the wet season), and therefore crossings must be designed for both flood and drought conditions.
    [Show full text]
  • Condition Monitoring of Threatened Fish Populations in Lake Alexandrina and Lake Albert
    Condition Monitoring of Threatened Fish Populations in Lake Alexandrina and Lake Albert Report to the Murray–Darling Basin Authority and the South Australian Department for Environment and Water Scotte Wedderburn and Thomas Barnes June 2018 © The University of Adelaide and the Department for Environment and Water With the exception of the Commonwealth Coat of Arms, the Murray–Darling Basin Authority logo, photographs and presented data, all material presented in this document is provided under a Creative Commons Attribution 4.0 International licence (https://creativecommons.org/licences/by/4.0/). For the avoidance of any doubt, this licence only applies to the material set out in this document. The details of the licence are available on the Creative Commons website (accessible using the links provided) as is the full legal code for the CC BY 4.0 licence (https://creativecommons.org/licences/by/4.0/legalcode). MDBA’s preference is that this publication be attributed (and any material sourced from it) using the following: Publication title: Condition Monitoring of Threatened Fish Populations in Lake Alexandrina and Lake Albert Source: Licensed from the Department for Environment and Water under a Creative Commons Attribution 4.0 International Licence The contents of this publication do not purport to represent the position of the Commonwealth of Australia or the MDBA in any way and are presented for the purpose of informing and stimulating discussion for improved management of Basin's natural resources. To the extent permitted by law, the copyright holders (including its employees and consultants) exclude all liability to any person for any consequences, including but not limited to all losses, damages, costs, expenses and any other compensation, arising directly or indirectly from using this report (in part or in whole) and any information or material contained in it.
    [Show full text]
  • Stock Assessment of Golden Perch for PIRSA
    Ferguson and Ye 2012 Stock assessment of golden perch for PIRSA Stock Assessment of Golden perch (Macquaria ambigua) G.J Ferguson and Q. Ye SARDI Publication No. F2007/001051-1 SARDI Research Report Series No. 656 SARDI Aquatic Sciences PO Box 120 Henley Beach SA 5022 October 2012 Fishery Stock Assessment Report to PIRSA Fisheries and Aquaculture 1 Ferguson and Ye 2012 Stock assessment of golden perch for PIRSA Stock Assessment of Golden perch (Macquaria ambigua) Fishery Stock Assessment Report to PIRSA Fisheries and Aquaculture G.J Ferguson and Q. Ye SARDI Publication No. F2007/001051-1 SARDI Research Report Series No. 656 October 2012 2 Ferguson and Ye 2012 Stock assessment of golden perch for PIRSA This publication may be cited as: Ferguson, G. J. and Ye, Q (2012). Stock Assessment of Golden perch (Macquaria ambigua). Stock Assessment Report for PIRSA Fisheries and Aquaculture. South Australian Research and Development Institute (Aquatic Sciences), Adelaide. F2007/01051- 1. SARDI Research Report Series No. 656. 55pp. South Australian Research and Development Institute SARDI Aquatic Sciences 2 Hamra Avenue West Beach SA 5024 Telephone: (08) 8207 5400 Facsimile: (08) 8207 5406 http://www.sardi.sa.gov.au DISCLAIMER The authors warrant that they have taken all reasonable care in producing this report. The report has been through the SARDI Aquatic Sciences internal review process, and has been formally approved for release by the Research Chief, Aquatic Sciences. Although all reasonable efforts have been made to ensure quality, SARDI Aquatic Sciences does not warrant that the information in this report is free from errors or omissions.
    [Show full text]
  • SALINITY SENSITIVITY in EARLY LIFE STAGES of an AUSTRALIAN FRESHWATER FISH, MURRAY COD (Maccullochella Peelii Peelii Mitchell 1838)
    i SALINITY SENSITIVITY IN EARLY LIFE STAGES OF AN AUSTRALIAN FRESHWATER FISH, MURRAY COD (Maccullochella peelii peelii Mitchell 1838) Piyapong Chotipuntu THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY OF THE UNIVERSITY OF CANBERRA Submitted August 2003 ii © Piyapong Chotipuntu 2003 Abstract The Murray cod (Maccullochella peelii peelii Mitchell 1838) is Australia’s largest freshwater fish. Once highly abundant in the Murray-Darling river system, populations have drastically declined in recent decades. Many causes for this decline have been proposed, including over-fishing, habitat loss and altered river flow regimes. This study hypothesised that elevated salinities have led to selective mortality in some developmental stages, which have in turn depleted stock recruitment and adult populations. The objectives of this study were to determine the optimal, threshold, upper sublethal and lethal salinities for development of eggs, yolk-sac larvae, fry and fingerlings of M. peelii peelii. Investigation the impact of salinity on fertilisation utilised gametes of trout cod (M. macquariensis, Cuvier 1829) instead of M. peelii peelii. Studies were carried out in a controlled laboratory environment using test media prepared from commercial sea salt. The results showed that the eggs of the trout cod hatched only when fertilised and incubated in freshwater, and only larvae hatched in freshwater survived through the yolk absorption period of 12 days. Yolk utilisation efficiencies were not significantly different among the salinities of 0-0.30 g/L. There was no effect of pre- or post- fertilising processes on the salinity tolerances of yolk-sac larvae. No larvae survived at salinities higher than 0.30 g/L during the yolk utilisation period.
    [Show full text]
  • ACT, Australian Capital Territory
    Biodiversity Summary for NRM Regions Species List What is the summary for and where does it come from? This list has been produced by the Department of Sustainability, Environment, Water, Population and Communities (SEWPC) for the Natural Resource Management Spatial Information System. The list was produced using the AustralianAustralian Natural Natural Heritage Heritage Assessment Assessment Tool Tool (ANHAT), which analyses data from a range of plant and animal surveys and collections from across Australia to automatically generate a report for each NRM region. Data sources (Appendix 2) include national and state herbaria, museums, state governments, CSIRO, Birds Australia and a range of surveys conducted by or for DEWHA. For each family of plant and animal covered by ANHAT (Appendix 1), this document gives the number of species in the country and how many of them are found in the region. It also identifies species listed as Vulnerable, Critically Endangered, Endangered or Conservation Dependent under the EPBC Act. A biodiversity summary for this region is also available. For more information please see: www.environment.gov.au/heritage/anhat/index.html Limitations • ANHAT currently contains information on the distribution of over 30,000 Australian taxa. This includes all mammals, birds, reptiles, frogs and fish, 137 families of vascular plants (over 15,000 species) and a range of invertebrate groups. Groups notnot yet yet covered covered in inANHAT ANHAT are notnot included included in in the the list. list. • The data used come from authoritative sources, but they are not perfect. All species names have been confirmed as valid species names, but it is not possible to confirm all species locations.
    [Show full text]
  • Barmah Forest Ramsar Site Strategic Management Plan
    Barmah Forest Ramsar Site Strategic Management Plan Department of Sustainability and Environment Parks Victoria developed this Strategic Management Plan in conjunction with the Department of Sustainability and Environment and key stakeholders, and coordinated the public comment process on the draft document. This report was prepared with financial support from the National Wetlands Program, under the Natural Heritage Trust. © The State of Victoria, Department of Sustainability and Environment, 2003 This publication is copyright. Apart from any fair dealing for the purposes of private study, research, criticism or review as permitted under the Copyright Act 1968, no part may be reproduced, copied, transmitted in any form or by any means (electronic, mechanical or graphic) without the prior permission of the State of Victoria, Department of Sustainability and Environment. All requests and enquiries should be directed to the Copyright Officer, Library Information Services, Department of Sustainability and Environment, 5/250 Victoria Parade, East Melbourne, Victoria 3002. Disclaimers This publication may be of assistance to you and every effort has been made to ensure that the information in the report is accurate. The Department of Sustainability and Environment does not guarantee that the report is without flaw of any kind or is wholly appropriate for your particular purposes and therefore disclaims all liability for any error, loss or other consequence, which may arise from you relying on any information in this publication. The views and opinions expressed in this document are those of the authors and do not necessarily reflect the views and opinions of the Commonwealth Government of Australia, the Federal Minister for Environment and Heritage, or the Department of the Environment and Heritage.
    [Show full text]
  • Deficiencies in Our Understanding of the Hydro-Ecology of Several Native Australian Fish: a Rapid Evidence Synthesis
    Marine and Freshwater Research, 2018, 69, 1208–1221 © CSIRO 2018 https://doi.org/10.1071/MF17241 Supplementary material Deficiencies in our understanding of the hydro-ecology of several native Australian fish: a rapid evidence synthesis Kimberly A. MillerA,D, Roser Casas-MuletB,A, Siobhan C. de LittleA, Michael J. StewardsonA, Wayne M. KosterC and J. Angus WebbA,E ADepartment of Infrastructure Engineering, The University of Melbourne, Parkville, Vic. 3010, Australia. BWater Research Institute, Cardiff University, The Sir Martin Evans Building, Museum Avenue, Cardiff, CF10 3AX, UK. CArthur Rylah Institute for Environmental Research, Department of Environment, Land, Water and Planning, Heidelberg, Vic. 3084, Australia. DPresent address: Healesville Sanctuary, Badger Creek Road, Healesville, Vic. 3777, Australia. ECorresponding author. Email address: [email protected] Page 1 of 30 Marine and Freshwater Research © CSIRO 2018 https://doi.org/10.1071/MF17241 Table S1. All papers located by standardised searches and following citation trails for the two rapid evidence assessments All papers are marked as Relevant or Irrelevant based on a reading of the title and abstract. Those deemed relevant on the first screen are marked as Relevant or Irrelevant based on a full assessment of the reference.The table contains incomplete citation details for a number of irrelevant papers. The information provided is as returned from the different evidence databases. Given that these references were not relevant to our review, we have not sought out the full citation details. Source Reference Relevance Relevance (based on title (after reading and abstract) full text) Pygmy perch & carp gudgeons Search hit Anon (1998) Soy protein-based formulas: recommendations for use in infant feeding.
    [Show full text]
  • Distribution and Habitat of River Blackfish (Gadopsis Marmoratus) in Mccallum and Tullaroop Creeks, North-Central Victoria
    Distribution and Habitat Of River Blackfish (Gadopsis marmoratus) in McCallum and Tullaroop Creeks, north-central Victoria A report to North Central Catchment Management Authority Kris Pitman & Paul Tinkler Freshwater Ecology Arthur Rylah Institute for Environmental Research September 2005 River Blackfish Distribution and Habitat © FRESHWATER ECOLOGY, SEPTEMBER 2005 PRODUCED BY: AUTHOR Kris S. Pitman and Paul Tinkler INSTITUTION Freshwater Ecology Arthur Rylah Institute for Environmental Research Department of Sustainability and Environment 123 Brown Street, Heidelberg, VIC, 3084. Telephone: (03) 9450 8600 Facsimile: (03) 9450 8799 PRODUCED FOR: CONTACT Brad Drust and Angela Gladman INSTITUTION North Central Catchment Management Authority 628-634 Midland Highway, Huntley 3551 TITLE: Distribution and Habitat of River Blackfish (Gadopsis marmoratus) in McCallum and Tullaroop Creeks, north-central Victoria. Cover images (clock-wise from top-left): McCallum Creek (site Mc 4), McCallum Creek (site Mc 5); River Blackfish (Gadopsis marmoratus) from Tullaroop creek site T-3. All images by K. Pitman. Freshwater Ecology, Arthur Rylah Institute for Environmental Research, DSE i River Blackfish Distribution and Habitat TABLE OF CONTENTS 1.0 INTRODUCTION......................................................................................................... 1 2.0 METHODS .................................................................................................................. 2 2.1 STUDY SITES............................................................................................................................2
    [Show full text]
  • NSW Recreational Freshwater Fishing Guide 2020-21
    NSW Recreational Freshwater Fishing Guide 2020–21 www.dpi.nsw.gov.au Report illegal fishing 1800 043 536 Check out the app:FishSmart NSW DPI has created an app Some data on this site is sourced from the Bureau of Meteorology. that provides recreational fishers with 24/7 access to essential information they need to know to fish in NSW, such as: ▢ a pictorial guide of common recreational species, bag & size limits, closed seasons and fishing gear rules ▢ record and keep your own catch log and opt to have your best fish pictures selected to feature in our in-app gallery ▢ real-time maps to locate nearest FADs (Fish Aggregation Devices), artificial reefs, Recreational Fishing Havens and Marine Park Zones ▢ DPI contact for reporting illegal fishing, fish kills, ▢ local weather, tide, moon phase and barometric pressure to help choose best time to fish pest species etc. and local Fisheries Offices ▢ guides on spearfishing, fishing safely, trout fishing, regional fishing ▢ DPI Facebook news. Welcome to FishSmart! See your location in Store all your Contact Fisheries – relation to FADs, Check the bag and size See featured fishing catches in your very Report illegal Marine Park Zones, limits for popular species photos RFHs & more own Catch Log fishing & more Contents i ■ NSW Recreational Fishing Fee . 1 ■ Where do my fishing fees go? .. 3 ■ Working with fishers . 7 ■ Fish hatcheries and fish stocking . 9 ■ Responsible fishing . 11 ■ Angler access . 14 ■ Converting fish lengths to weights. 15 ■ Fishing safely/safe boating . 17 ■ Food safety . 18 ■ Knots and rigs . 20 ■ Fish identification and measurement . 27 ■ Fish bag limits, size limits and closed seasons .
    [Show full text]
  • Feeding and Growth of Golden Perch (Macquaria Ambigua), and Assessment of Its Potential for Aquaculture
    ResearchOnline@JCU This file is part of the following reference: Herbert, Brett (2005) Feeding and growth of Golden perch (Macquaria ambigua), and assessment of its potential for aquaculture. PhD thesis, James Cook University. Access to this file is available from: http://eprints.jcu.edu.au/1332/ If you believe that this work constitutes a copyright infringement, please contact [email protected] and quote http://eprints.jcu.edu.au/1332/ B. Herbert 4 FEEDING AND GROWTH OF GOLDEN PERCH (MACQUARIA AMBIGUA), AND ASSESSMENT OF ITS POTENTIAL FOR AQUACULTURE Thesis submitted by Brett Herbert For the Degree of Doctor of Philosophy in the School of Marine Biology and Aquaculture James Cook University September 2005 ELECTRONIC COPY I, the undersigned, the author of this work, declare that the electronic copy of this thesis provided to the James Cook University Library, is an accurate copy of the print thesis submitted, within the limits of the technology available. _______________________________ _______________ Signature Date STATEMENT OF ACCESS I, the undersigned, the author of this thesis, understand that James Cook University will make it available for use within the University Library and, by microfilm or other means, allow access to other users in other approved libraries. All users consulting this thesis will have to sign the following statement: In consulting this thesis, I agree not to copy or closely paraphrase it in whole or in part without the written consent of the author; and to make proper public written acknowledgement for any assistance which I have obtained from it. Beyond this, I do not wish to place any restriction on access to this thesis.
    [Show full text]
  • Landscape Genetics Informs Mesohabitat Preference and Conservation Priorities for a Surrogate Indicator Species in a Highly Fragmented River System
    Heredity (2017) 118, 374–384 & 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved 0018-067X/17 www.nature.com/hdy ORIGINAL ARTICLE Landscape genetics informs mesohabitat preference and conservation priorities for a surrogate indicator species in a highly fragmented river system J Lean1, MP Hammer2,3, PJ Unmack4, M Adams2,5 and LB Beheregaray1 Poor dispersal species represent conservative benchmarks for biodiversity management because they provide insights into ecological processes influenced by habitat fragmentation that are less evident in more dispersive organisms. Here we used the poorly dispersive and threatened river blackfish (Gadopsis marmoratus) as a surrogate indicator system for assessing the effects of fragmentation in highly modified river basins and for prioritizing basin-wide management strategies. We combined individual, population and landscape-based approaches to analyze genetic variation in samples spanning the distribution of the species in Australia’s Murray–Darling Basin, one of the world’s most degraded freshwater systems. Our results indicate that G. marmoratus displays the hallmark of severe habitat fragmentation with notably scattered, small and demographically isolated populations with very low genetic diversity—a pattern found not only between regions and catchments but also between streams within catchments. By using hierarchically nested population sampling and assessing relationships between genetic uniqueness and genetic diversity across populations, we developed a spatial management framework that includes the selection of populations in need of genetic rescue. Landscape genetics provided an environmental criterion to identify associations between landscape features and ecological processes. Our results further our understanding of the impact that habitat quality and quantity has on habitat specialists with similarly low dispersal.
    [Show full text]