Animals of Swan Bay
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VARIATION in SETTLEMENT and LARVAL DURATION of Klng GEORGE WHITING, SILLAGINODES PUNCTATA (SILLAGINIDAE), in SWAN BAY, VICTORIA, AUSTRALIA
BULLETIN OF MARINE SCIENCE, 54(1): 281-296, 1994 VARIATION IN SETTLEMENT AND LARVAL DURATION OF KlNG GEORGE WHITING, SILLAGINODES PUNCTATA (SILLAGINIDAE), IN SWAN BAY, VICTORIA, AUSTRALIA Gregory P. Jenkins and Helen M. A. May ABSTRACT Otoliths were examined from late-stage larvae and juveniles of King George whiting, Sillaginodes punctata, collected from Swan Bay in spring 1989. Increments in otoliths of larval S. punctata are known to be formed daily. A transition in the microstructure of otoliths from late-stage larvae was apparently related to environmental changes associated with entry to Port Phillip Bay. The pattern of abundance of post-larvae of S. punctata in fortnightly samples supported the contention that the transition was formed immediately prior to "set- tlement" in seagrass habitats. Backcalculation to the otolith transition suggested that five cohorts had entered Swan Bay, each approximately 10 days apart, from late September to early November. Stability of this pattern for juveniles from sequential samples indicated that otolith increments continued to be formed daily in the juvenile stage. The pattern of settlement was consistent for two sites within Swan Bay. The larval phase of King George whiting settling in Port Phillip Bay was extremely long and variable, ranging from approximately 100 to 170 days. Age at settlement was more variable than length, and growth rate at settlement was I I extremely slow, approximately 0.06 mm ·d- • • Backcalculated hatching dates ranged from April to JUly. July. Increment widths in the larval stage suggest that growth slows after approxi- mately 45 to 75 days; beyond which individuals are in a slow growth, competent stage of 40 to 100 days. -
Macquarie River Bird Trail
Bird Watching Trail Guide Acknowledgements RiverSmart Australia Limited would like to thank the following for their assistance in making this trail and publication a reality. Tim and Janis Hosking, and the other members of the Dubbo Field Naturalists and Conservation Society, who assisted with technical information about the various sites, the bird list and with some of the photos. Thanks also to Jim Dutton for providing bird list details for the Burrendong Arboretum. Photographers. Photographs were kindly provided by Brian O’Leary, Neil Zoglauer, Julian Robinson, Lisa Minner, Debbie Love, Tim Hosking, Dione Carter, Dan Giselsson, Tim Ralph and Bill Phillips. This project received financial support from the Australian Bird Environment Foundation of Sacred kingfisher photo: Dan Giselsson BirdLife Australia. Thanks to Warren Shire Council, Sarah Derrett and Ashley Wielinga in particular, for their assistance in relation to the Tiger Bay site. Thanks also to Philippa Lawrence, Sprout Design and Mapping Services Australia. THE MACQuarIE RIVER TraILS First published 2014 The Macquarie valley, in the heart of NSW is one of the The preparation of this guide was coordinated by the not-for-profit organisation Riversmart State’s — and indeed Australia’s — best kept secrets, until now. Australia Ltd. Please consider making a tax deductible donation to our blue bucket fund so we can keep doing our work in the interests of healthy and sustainable rivers. Macquarie River Trails (www.rivertrails.com.au), launched in late 2011, is designed to let you explore the many attractions www.riversmart.org.au and wonders of this rich farming region, one that is blessed See outside back cover for more about our work with a vibrant river, the iconic Maquarie Marshes, friendly people and a laid back lifestyle. -
Regional Bird Monitoring Annual Report 2018-2019
BirdLife Australia BirdLife Australia (Royal Australasian Ornithologists Union) was founded in 1901 and works to conserve native birds and biological diversity in Australasia and Antarctica, through the study and management of birds and their habitats, and the education and involvement of the community. BirdLife Australia produces a range of publications, including Emu, a quarterly scientific journal; Wingspan, a quarterly magazine for all members; Conservation Statements; BirdLife Australia Monographs; the BirdLife Australia Report series; and the Handbook of Australian, New Zealand and Antarctic Birds. It also maintains a comprehensive ornithological library and several scientific databases covering bird distribution and biology. Membership of BirdLife Australia is open to anyone interested in birds and their habitats, and concerned about the future of our avifauna. For further information about membership, subscriptions and database access, contact BirdLife Australia 60 Leicester Street, Suite 2-05 Carlton VIC 3053 Australia Tel: (Australia): (03) 9347 0757 Fax: (03) 9347 9323 (Overseas): +613 9347 0757 Fax: +613 9347 9323 E-mail: [email protected] Recommended citation: BirdLife Australia (2020). Melbourne Water Regional Bird Monitoring Project. Annual Report 2018-19. Unpublished report prepared by D.G. Quin, B. Clarke-Wood, C. Purnell, A. Silcocks and K. Herman for Melbourne Water by (BirdLife Australia, Carlton) This report was prepared by BirdLife Australia under contract to Melbourne Water. Disclaimers This publication may be of assistance to you and every effort has been undertaken to ensure that the information presented within is accurate. BirdLife Australia does not guarantee that the publication 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 that may arise from you relying on any information in this publication. -
Habitat Types
Habitat Types The following section features ten predominant habitat types on the West Coast of the Eyre Peninsula, South Australia. It provides a description of each habitat type and the native plant and fauna species that commonly occur there. The fauna species lists in this section are not limited to the species included in this publication and include other coastal fauna species. Fauna species included in this publication are printed in bold. Information is also provided on specific threats and reference sites for each habitat type. The habitat types presented are generally either characteristic of high-energy exposed coastline or low-energy sheltered coastline. Open sandy beaches, non-vegetated dunefields, coastal cliffs and cliff tops are all typically found along high energy, exposed coastline, while mangroves, sand flats and saltmarsh/samphire are characteristic of low energy, sheltered coastline. Habitat Types Coastal Dune Shrublands NATURAL DISTRIBUTION shrublands of larger vegetation occur on more stable dunes and Found throughout the coastal environment, from low beachfront cliff-top dunes with deep stable sand. Most large dune shrublands locations to elevated clifftops, wherever sand can accumulate. will be composed of a mosaic of transitional vegetation patches ranging from bare sand to dense shrub cover. DESCRIPTION This habitat type is associated with sandy coastal dunes occurring The understory generally consists of moderate to high diversity of along exposed and sometimes more sheltered coastline. Dunes are low shrubs, sedges and groundcovers. Understory diversity is often created by the deposition of dry sand particles from the beach by driven by the position and aspect of the dune slope. -
South Australian Charter Boat Fishing Limits
Commonwealth Size Individual Charter *Multi-day (cm) passenger boat limit charter trip Managed Species catch limit Up to 3 Up to 6 More than 3 days passengers passengers Albacore - 2 6 No multi-trip Barracouta - 10 30 limits permitted. Bight Redfish 30 10 30 Boat limits for up Blue Warehou - 10 30 to 6 passengers Gemfish - 10 30 apply irrespective Gummy/School Shark 45 2 6 of the number Note: These are combined Gummy/School Shark limits.- of persons on Ling - 3 18 the boat or the Morwong (Jackass) - 10 30 number of days Silver Warehou - 10 30 fishing. Southern Bluefin Tuna - 2 6 GLOSSARY Individual passenger catch limit Number of fish per person, per boat, per day. Charter boat limit Number of fish per boat, per day. Multi-day charter trip Three times the daily individual limits that apply. IMPORTANT INFORMATION 1. Boat limits apply when there are more than three and up to six people onboard. If three people or less are onboard, then individual bag limits apply. For the species listed in Table 1, a different individual catch limit applies where there are more than three passengers onboard. 2. On multi-day charters, the catch limit for Commonwealth-managed species is restricted to one daily boat limit, regardless of the number of passengers onboard or the number of days. South Australian Charter 3. It is an offence to cut up, fillet or otherwise mutilate fish in a boat (except for scaling and gutting) unless the fish are to be eaten onboard. This applies to all species subject to minimum legal lengths. -
Oyster Farms Are the Main Spawning Grounds of the Black Sea Bream Acanthopagrus Schlegelii in Hiroshima Bay, Japan
Oyster farms are the main spawning grounds of the black sea bream Acanthopagrus schlegelii in Hiroshima Bay, Japan Kentaro Kawai, Hiroki Fujita, Gustavo Sanchez and Tetsuya Umino Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi Hiroshima, Hiroshima, Japan ABSTRACT Understanding the anthropogenic impact of oyster farms is essential for the management and conservation of marine fishes. In Japan, Hiroshima Bay is the region with the most intense oyster farming and thus suitable to study the impact of these farms. Here, we surveyed spherical planktonic eggs of the black sea bream Acanthopagrus schlegelii, one of the most abundant fish in the Bay. Our survey was performed at fourteen stations which included places with oyster farms and historical spawning grounds. We found the highest egg densities in four stations, one with historical spawning aggregations and three with major oyster farms. Besides, surveys at the innermost part of Hiroshima Bay, where two major rivers discharge, showed a low density of eggs indicating that black sea bream avoids spawning in low salinity areas. Our study suggests that oyster farms benefit spawners of black sea bream by providing more food sources than historical spawning grounds for efficient spawning. Yet, whether oyster farms represent a full advantage for the species remains unclear, particularly because they are known to host jellyfishes that prey on eggs and limit water flow that can influence the survival of fish eggs. Subjects Agricultural Science, Aquaculture, Fisheries and Fish Science, Ecology, Marine Biology, Submitted 8 February 2021 Accepted 26 April 2021 Zoology Published 1 June 2021 Keywords Shellfish aquaculture, Fish spawning, Sparid, Anthropogenic impact, Fish eggs Corresponding author Tetsuya Umino, INTRODUCTION [email protected] Hiroshima Bay is an enclosed bay in the western Seto Inland Sea of Japan with an average Academic editor seabed depth of 25.6 m. -
Boat-Based Recreational Fishing Catch and Effort in Cockburn Sound and Owen Anchorage During 1996/97, 2001/02 and 2005/06 April 20Th 2012 Neil Sumner and Eva Lai
Fisheries Research Contract Report No. 23, 2012 Boat-based Recreational Fishing Catch and Effort in Cockburn Sound and Owen Anchorage during 1996/97, 2001/02 and 2005/06 April 20th 2012 Neil Sumner and Eva Lai Fisheries Research Division Western Australian Fisheries and Marine Research Laboratories PO Box 20 NORTH BEACH, Western Australia 6920 Correct citation: Sumner, N. and Lai, E. (2012). Boat-based Recreational Fishing Catch and Effort in Cockburn Sound and Owen Anchorage during 1996/97, 2001/02 and 2005/06. Fisheries Research Contract Report No. 23. Department of Fisheries, Western Australia. 16p. Enquiries: WA Fisheries and Marine Research Laboratories, PO Box 20, North Beach, WA 6920 Tel: +61 8 9203 0111 Email: [email protected] Website: www.fish.wa.gov.au ABN: 55 689 794 771 A complete list of Fisheries Research Contract Reports is available online at www.fish.wa.gov.au Cover image: Nick Jarvis © Department of Fisheries, Western Australia. May 2012. ISSN: 1446 - 5868 ISBN: 978-1-921845-42-0 ii Fisheries Research Contract Report [Western Australia] No. 23, 2012 Contents 1.0 Executive Summary ..................................................................................................... 1 2.0 Introduction .................................................................................................................. 2 3.0 Methods ......................................................................................................................... 3 3.1 Boat Ramp Surveys ............................................................................................... -
15.2 Sand Islands and Shoals
15 Islands 15.2 Sand Islands and Shoals Figure 15.1: (A) Aerial view of Troubridge Island and surrounding Troubridge Shoals: (c) Coastal Protection Branch, DEWNR. (B). Troubridge Island: (c) W. Bonham, Lighthouses of Australia. Asset Sand Islands and Shoals Description A crest of sand which rises above water level from a broad marine sand bank, forming an unstable sand island - Troubridge Island - which changes shape and size over time. The island is about 5m high at high tide, and about 2 hectares in area when inundated, but considerable larger at low tide. The island is surrounded by shallow sand embankments (Troubridge Shoals). Examples of Key Little Penguin, Black-faced Cormorant, Crested Tern and other breeding sea Species birds (numerous species) migratory wading birds (numerous species) abundant sand-dwelling invertebrates - food sources for fish and wading birds Pink Snapper King George whiting and school whiting syngnathid fishes (e.g. seahorses, pipefishes) sponges (forming “sponge gardens”, on consolidated sand) cowries; volutes and other specimen shells Knobby Argonaut (‘paper nautilus’ octopus) giant spider crab southern calamari Main Location Troubridge Island (and shallow sandbanks to the west - Troubridge Shoals) Notes Troubridge Island Conservation Park (approx. 260 hectares) was declared in 1982, and extended in 1986, partly to protect major breeding colonies of several seabird species, and provide protection for an important feeding ground used by migratory wading birds, listed under international treaties. Oceanography At the bottom of Gulf St Vincent, off the eastern “heel” of Yorke Peninsula, waters less than 20m occur up to 10km from shore. The oceanographic conditions have led to a long-term build-up of sand in some areas, including the creation of Troubridge Island, a sand island about 7km east of Sultana Point. -
General Intro
For further information, please contact: Coast and Marine Conservation Branch Department of Environment and Natural Resources GPO Box 1047 ADELAIDE SA 5001 Telephone: (08) 8124 4900 Facsimile: (08) 8124 4920 Cite as: Department of Environment and Natural Resources (2010), Environmental, Economic and Social Values of the Thorny Passage Marine Park, Department of Environment and Natural Resources, South Australia Mapping information: All maps created by the Department of Environment and Natural Resources unless otherwise stated. All Rights Reserved. All works and information displayed are subject to Copyright. For the reproduction or publication beyond that permitted by the Copyright Act 1968 (Cwlth) written permission must be sought from the Department. Although every effort has been made to ensure the accuracy of the information displayed, the Department, its agents, officers and employees make no representations, either express or implied, that the information displayed is accurate or fit for any purpose and expressly disclaims all liability for loss or damage arising from reliance upon the information displayed. © Copyright Department of Environment and Natural Resources 2010. 2010 TABLE OF CONTENTS PART 1 VALUES STATEMENT 1 ENVIRONMENTAL VALUES .................................................................................................................... 1 1.1 ECOSYSTEM SERVICES...............................................................................................................................1 1.2 PHYSICAL INFLUENCES -
Restocking the Blackwood River Estuary with the Black Bream Acanthopagrus Butcheri Project No. 2000/180
Restocking the Blackwood River Estuary with the Black Bream Acanthopagrus butcheri Jenkins, G.I., French, D.J.W., Potter, I.C., de Lestang, S., Hall, N.G., Partridge, G.J., Hesp, S.A. and Sarre, G.A. Project No. 2000/180 Fisheries Research and Development Corporation Report FRDC Project 2000/180 Restocking the Blackwood River Estuary with the Black Bream Acanthopagrus butcheri. Jenkins, G.I. # French, D.J.W.* Potter, I.C. * de Lestang, S.* Hall, N.* Partridge, G.J. # Hesp, S.A. * Sarre, G.A. * June 2006 #Aquaculture Development Unit WA Maritime Training Centre, Challenger TAFE 1 Fleet Street, Fremantle, Western Australia, 6160 *Centre for Fish and Fisheries Research School of Biological Sciences and Biotechnology Murdoch University Murdoch, Western Australia 6150 This work is copyright. Except as permitted under the Copyright Act 1968 (Cth), no part of this publication may be reproduced by any process, electronic or otherwise, without the specific written permission of the copyright owners. Neither may information be stored electronically in any form whatsoever without such permission. June 2006 ISBN: 86905-8932 1 TABLE OF CONTENTS TABLE OF CONTENTS ..............................................................................................................................2 OBJECTIVES................................................................................................................................................3 NON-TECHNICAL SUMMARY.................................................................................................................4 -
Biology, Stock Status and Management Summaries for Selected Fish Species in South-Western Australia
Fisheries Research Report No. 242, 2013 Biology, stock status and management summaries for selected fish species in south-western Australia Claire B. Smallwood, S. Alex Hesp and Lynnath E. Beckley Fisheries Research Division Western Australian Fisheries and Marine Research Laboratories PO Box 20 NORTH BEACH, Western Australia 6920 Correct citation: Smallwood, C. B.; Hesp, S. A.; and Beckley, L. E. 2013. Biology, stock status and management summaries for selected fish species in south-western Australia. Fisheries Research Report No. 242. Department of Fisheries, Western Australia. 180pp. Disclaimer The views and opinions expressed in this publication are those of the authors and do not necessarily reflect those of the Department of Fisheries Western Australia. While reasonable efforts have been made to ensure that the contents of this publication are factually correct, the Department of Fisheries Western Australia does not accept responsibility for the accuracy or completeness of the contents, and shall not be liable for any loss or damage that may be occasioned directly or indirectly through the use of, or reliance on, the contents of this publication. Fish illustrations Illustrations © R. Swainston / www.anima.net.au We dedicate this guide to the memory of our friend and colleague, Ben Chuwen Department of Fisheries 3rd floor SGIO Atrium 168 – 170 St Georges Terrace PERTH WA 6000 Telephone: (08) 9482 7333 Facsimile: (08) 9482 7389 Website: www.fish.wa.gov.au ABN: 55 689 794 771 Published by Department of Fisheries, Perth, Western Australia. Fisheries Research Report No. 242, March 2013. ISSN: 1035 - 4549 ISBN: 978-1-921845-56-7 ii Fisheries Research Report No.242, 2013 Contents ACKNOWLEDGEMENTS ............................................................................................... -
Bird Species Checklist
Petrels & Shearwaters Darters Hawks & Allies (cont.) Common Diving-Petrel Darter Collared Sparrowhawk Bird Species List Southern Giant Petrel Cormorants Wedge-tailed Eagle Southern Fulmar Little Pied Cormorant Little Eagle Kangaroo Island, SA Cape Petrel Black-faced Cormorant Osprey Kerguelen Petrel Pied Cormorant Brown Falcon Emus Great-winged Petrel Little Black Cormorant Australian Hobby Mainland Emu White-headed Petrel Great Cormorant Black Falcon Megapodes Blue Petrel Pelicans Peregrine Falcon Wild Turkey Mottled Petrel Fiordland Pelican Nankeen Kestrel Australian Brush Turkey Northern Giant Petrel Little Pelican Cranes Game Birds South Georgia Diving Petrel Northern Rockhopper Pelican Brolga Stubble Quail Broad-billed Prion Australian Pelican Rails Brown Quail Salvin's Prion Herons & Allies Buff-banded Rail Indian Peafowl Antarctic Prion White-faced Heron Lewin's Rail Wildfowl Slender-billed Prion Little Egret Baillon's Crake Blue-billed Duck Fairy Prion Eastern Reef Heron Australian Spotted Crake Musk Duck White-chinned Petrel White-necked Heron Spotless Crake Freckled Duck Grey Petrel Great Egret Purple Swamp-hen Black Swan Flesh-footed Shearwater Cattle Egret Dusky Moorhen Cape Barren Goose Short-tailed Shearwater Nankeen Night Heron Black-tailed Native-hen Australian Shelduck Fluttering Shearwater Australasian Bittern Common Coot Maned Duck Sooty Shearwater Ibises & Spoonbills Buttonquail Pacific Black Duck Hutton's Shearwater Glossy Ibis Painted Buttonquail Australasian Shoveler Albatrosses Australian White Ibis Sandpipers