DOCSLIB.ORG

Population Genetics of the Southern Rock Lobster: Is Translocation Genetically Viable? Erin Morgan

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Population Genetics of the Southern Rock Lobster: Is Translocation Genetically Viable? Erin Morgan Population Genetics of the Southern Rock Lobster: Is Translocation Genetically Viable? Erin Morgan Introduction Translocation: The human-mediated movement of a species to maintain population number, connectivity and genetic diversity. Uses: Conservation, agriculture, repopulation/restocking [1, 2]. Risks: Misinterpretation of biological, behavioural or genetic backgrounds, leading to replacement of local populations, population competition and size reduction, introduction of disease, loss of localized adaptations (fitness) and loss of genetic diversity [3, 4]. Many marine species are assumed to be panmictic, meaning a single population with random mating, having no physical, behavioural or genetic barriers to connectivity. However, recent research is showing finer scale population subdivision is more common than previously assumed [5, 6, 7, 8]. Translocations have already been undertaken by commercial industry for the southern rock lobster, Jasus edwardsii, to maintain populations for fishing [9, 10]. Around Tasmania, lobsters are translocated from deeper water to shallow water areas currently over-exploited by agriculture. There are important phenotypic (or physical) differences between shallow and deep water populations, where shallow water phenotypes are more desirable due to a rich red shell colour, larger size and faster growth rate (Figure 1) [9]. These lobsters exhibit phenotypic plasticity, being able to change phenotype based on their environment, as Figure 1. Southern rock lobster, Jasus edwardsii, translocated individuals change to the more desired red phenotype after their first moult. red phenotype (left) and pale phenotype (right). This study aims to use microsatellite markers, or variations in short tandem repeats of DNA sequences, to investigate genetic differentiation among Tasmanian populations of the southern rock lobster. This study will determine whether assumptions made by the fishing industry of a panmictic population is true, and reveal potential patterns in connectivity across larger oceanic distances. Methodology Lobsters were sampled from six sites across the southern Tasmanian coast (Figure 2), three from shallow water (<30m) sampling the red phenotype, and three deep areas (>60m) targeting pale phenotype. One population was sampled from New Zealand, to provide a larger scale of genetic connectivity. Sampling was conducted by taking a clip from the pleopod (swimming limb) of lobsters for genetic analysis. The Institute for Marine and Antarctic Studies (IMAS), provided capture- release permits as per the Australian Government National Health and Medical Research Council code of practice for care of animals for scientific purposes. DNA was extracted from a large sample of 460 lobsters, using 8 microsatellite markers designed for Jasus edwardsii [11]. DNA was amplified using Polymerase Chain Reaction, and PCR products were sent to the Australian Genome Research Facility (AGRF) for separation into microsatellite repeat lengths. Results were repeatedly analysed using population genetic computer software, providing probability values and standard error. A population genetics technique using F-statistics was used, based on the frequency of microsatellite marker alleles Figure 2. Sample sites [12]. Red shows shallow water phenotypes, of a population. Data analysis was considered significant at the level of p<0.002, with Fst values above 0.004 demonstrating white deep water. TAR, Taroona Reserve; MBI, Mutton Bird Island; genetic difference between marine populations [13].Computer analysis determined genetic connectivity as well as the level HI, Hobbs Island; MAT, Maatsyuker Island; CQE, Cape Queen Elizabeth; EP, East Pyramids; NZ, New Zealand. and directionality of migration or gene flow. Results TAR MBI HI MAT CQE EP New Table 1 showed a consistent significant genetic difference between New Zealand Tasmania and Tasmanian sites of around 0.03. Overall, populations of Tasmania showed no MBI 0.0002 Zealand genetic differences either between shallow and deep water sites, or between 0.9987 0.0013 HI 0.0005 0.0010 Tasmania geographically separate sites, however, on a larger scale, a clear genetic difference (0.0012) (0.0012) MAT 0.0016 0.0024 0.0030 exists between populations of lobsters around Tasmania compared to the New 0.3208 0.6792 CQE 0.0003 0.0021 0.0015 0.0004 population from New Zealand. Zealand (0.0121) (0.0121) Table 2 shows the rate of migration between now combined populations of EP 0.0012 0.0026 0.0005 0.0008 0.0002 Table 2. Migration rates (% probabilities). Tasmania and the population in New Zealand, based on microsatellite NZ 0.0292 0.0320 0.0342 0.0342 0.029 0.0312 Bold values show self recruitment, left frequencies. 32% of New Zealand lobsters sampled were migrants from Tasmania. Table 1. F-statistics across all populations. Bold indicates significant column indicates where migrants travelled Alternatively, 99% of Tasmanian lobsters were self recruited, or originated from values of p value <0.002. to, top row where migrants originated Tasmanian populations. Gene flow was in the order of 10 to 30 times more from., standard deviation in brackets common from Tasmania to New Zealand, than in the reverse direction. Discussion Conclusion Translocations of lobsters from deep to shallow water sites around Tasmania have already been conducted and shown to be No significant genetic difference was biologically beneficial [10, 14]. Assumptions about what is biologically meaningful should be treated with great care, as small levels identified between Tasmanian of statistically significant genetic difference found in some marine species may not be a true reflection of an entire population populations of different phenotypes, structure [5]. F-statistics suggest translocating lobsters in this manner is viable on a genetic level, as no significant genetic suggesting small scale translocation of differences were found between Tasmanian lobsters of different phenotypes. Therefore, assumptions of a panmictic population of lobsters from deep to shallow waters the southern rock lobster around Tasmania is true. around Tasmania are genetically viable. Large scale patterns of genetic difference based on isolation by oceanic distance have been found in marine species like the Analysis rejects the assumption of a southern rock lobster [4, 5, 8]. This study was limited by a single New Zealand population sampled, indicating further exploration of panmictic population over larger population connectivity across greater oceanic distances would better reveal migration patterns and genetic connectivity. The most geographical distances, highlighting the complicated barrier to migration for marine species is ocean currents, with 2,000 kilometres of open ocean between Tasmania and biggest limitation and the best direction New Zealand, predicted success of migration is low [15]. Results showed successful migration and genetic exchange of populations forward, to use a wider number of in Tasmania into New Zealand was much more likely than New Zealand populations traversing ocean currents into Tasmania. This is genetic measures to investigate highly important in consideration of fishing exploitation of lobsters, as New Zealand may rely on Tasmanian migrants as a source of population genetic structure of the new genetic diversity, in what is known as a source-sink relationship. Over-exploitation of lobster populations in Tasmania may southern rock lobster across larger have a flow-on effect, reducing populations of lobsters in New Zealand which rely on Tasmanian stocks for numbers. oceanic distances. References Acknowledgements 1. Rout, T.M., C.E. Hauser, and H.P. Possingham, Minimise long-term loss or maximise short-term gain? Ecological Modelling, 2007. 201(1): p. 67-74. 2. Vitt, P., et al., Assisted migration of plants: changes in latitudes, changes in attitudes. Biological Conservation, 2010. 143(1): p. 18-27. 3. Eldridge, W.H. and K.A. Naish, Long-term effects of translocation and release numbers on fine-scale population structure among coho salmon (Oncorhynchus kisutch). Molecular Ecology, 2007. 16: p. 2407-2421. This study would like to acknowledge 4. Cowen, R.K., Connectivity of marine populations: open or closed? Science, 2000. 287(5454): p. 857-859. 5. Waples, R.S., Separating the wheat from the chaff: patterns of genetic differentiation in high gene flow species. The Journal of Heredity, 1998. 89(5): p. 438-450. research supervisors Dr. Bridget Green of 6. Carvalho, G.R. and L. Hauser, Advances in the molecular analysis of fish population structure. Italian Journal of Zoology, 1998. 65: p. 21-33. 7. Elphie, H., et al., Detecting immigrants in a highly genetically homogeneous spiny lobster population (Palinurus elephas) in the northwest Mediterranean Sea. Ecology and Evolution, 2012. 2(10): p. 2387-2396. the University of Tasmania, Dr. Jan 8. Temby, N., K. Miller, and C. Mundy, Evidence of genetic subdivision among populations of blacklip abalone (haliotis rubra leach) in Tasmania. Marine and Freshwater Research, 2007. 58: p. 733-742. 9. Chandrapavan, A., et al., Colour variation in the southern rock lobster Jasus edwardsii and its economic impact on the commercial industry. New Zealand Journal of Marine and Freshwater Research, 2009. 43: p. 537-545. Strugnell and Dr. Nick Murphy of La Trobe 10. Green, B.S., et al., The good, the bad and the recovery in an assisted migration. PLoS One, 2010. 5(11): e14160. 11. Thomas, L. and J.J. Bell, Characterization of polymorphic microsatellite markers for the red rock lobster,
Load more

Recommended publications
  • Impact of Sea Level Rise on Coastal Natural Values in Tasmania
    Impact of sea level rise on coastal natural values in Tasmania JUNE 2016 Department of Primary Industries, Parks, Water and Environment Acknowledgements Thanks to the support we received in particular from Clarissa Murphy who gave six months as a volunteer in the first phase of the sea level rise risk assessment work. We also had considerable technical input from a range of people on various aspects of the work, including Hans and Annie Wapstra, Richard Schahinger, Tim Rudman, John Church, and Anni McCuaig. We acknowledge the hard work over a number of years from the Sea Level Rise Impacts Working Group: Oberon Carter, Louise Gilfedder, Felicity Faulkner, Lynne Sparrow (DPIPWE), Eric Woehler (BirdLife Tasmania) and Chris Sharples (University of Tasmania). This report was compiled by Oberon Carter, Felicity Faulkner, Louise Gilfedder and Peter Voller from the Natural Values Conservation Branch. Citation DPIPWE (2016) Impact of sea level rise on coastal natural values in Tasmania. Natural and Cultural Heritage Division, Department of Primary Industries, Parks, Water and Environment, Hobart. www.dpipwe.tas.gov.au ISBN: 978-1-74380-009-6 Cover View to Mount Cameron West by Oberon Carter. Pied Oystercatcher by Mick Brown. The Pied Oystercatcher is considered to have a very high exposure to sea level rise under both a national assessment and Tasmanian assessment. Its preferred habitat is mudflats, sandbanks and sandy ocean beaches, all vulnerable to inundation and erosion. Round-leaved Pigface (Disphyma australe) in flower in saltmarsh at Lauderdale by Iona Mitchell. Three saltmarsh communities are associated with the coastal zone and are considered at risk from sea level rise.
    [Show full text]
  • Discover the History of Warrnambool's Streets
    Discover the history of Warrnambool's streets Street Name Description Locality Length Origin of Street Name Abbey Lane A laneway running between Hyland and Hart Streets, south of Timor Warrnambool 495m Benjamin Abbey (1862-1943) served two terms as Councillor 1913-16 and 1920-30. Served as Mayor 1924-26 during the Street. building of the Municipal Chambers. He was Manager of the Warrnambool branch of the Co-Operative Box Works of Victoria situated in South Warrnambool and a Trustee of the Methodist Church. His first wife Annie (nee Newman) died in Appears, unnamed, on an 1890 map. 1916 and his 2nd wife, Anastasia, died in 1994. This unnamed road was named Abbey Lane by the City of Warrnambool on 29th April 1991. The Council minutes and Government Gazette specifically name only the section between Hart and Hyland Streets which means the section between Hart and Ryot Streets is technically still unnamed. Aberline Road A northerly continuation of McKiernan Road, running from the Moore Warrnambool 1917m Joseph Aberline (1809-1874) arrived in Warrnambool in 1849 after spending some years in New Zealand. His property, Street/Dales Road intersection north to Wangoom Road. "The Grove", built on Wangoom Road in the 1860s was the site of a brick-making enterprise established by his son, John (1854-1940) in 1891. It was from the Wangoom Road property that large boulders were taken for use as some of the filling A very old road that appears on an 1856 map of Warrnambool. for the Warrnambool breakwater. Some older maps call it Aberlines Road.
    [Show full text]
  • The Sooty Shearwater in New Zealand
    THE CONDOR VOLUME 46 MAY-JUNE, 1944 NUMBER 3 THE SOOTY SHEARWATER IN NEW ZEALAND By L. E. RICHDALE The Sooty Shearwater (Pufinus g&us) is the most common sea bird in New Zealand waters, where there must be several million individuals. From the last few days in September to the middle of November an observer on any of the headlands of the Otago Peninsula, New Zealand, may see this speciesflying south in an endless stream. The flight, however, is not continuous, for many pauses are made for feeding. It is on such occasionsthat huge flocks are noticed resting on the waters of various bays along the coast. This shearwater is locally known as the mutton-bird and the young are taken an- nually for food by those Maoris who have acquired ancestral rights. Europeans who are married to such natives also have a legal right to participate in these activities. Beginning on the first of April of each year, the season extends to about the middle of May. Although no exact tally is kept, it is estimated that nearly 250,000 birds are taken in a good season. The term “mutton-bird” is usually reserved for Pufinus griseus but to the Maori several species are included. In fact anything that is edible and can be “bagged up” is a mutton-bird. In this connection speciesinvolved in southern New Zealand include a bird known as the Korure, which is either Pterodroma inexpecta or P. cookii, or both. I have not yet had an opportunity to verify this point but both species live on some of the mutton-bird islands.
    [Show full text]
  • (Bill) Lane and His Contribution to Bird Study in Australia
    Corella, 2011, 36(1): 3-11 A founder and father of the Bird Banders’ Association of Australia, the late S. G. (Bill) Lane and his contribution to bird study in Australia. L. C. Llewellyn Curlew Biological Services, PO Box 67, Pacifi c Palms, NSW, 2428 Email: [email protected] S. G. (Bill) Lane had two areas of interest that fi lled his He became Honorary Editor of The Australian Bird Bander studious life, the army and birds. His drive and energy and in 1967 until it changed its name to Corella in 1977, editing meticulous eye for detail ensured he excelled in whatever he 40 issues (Vol. 5, Part 1 to Vol. 14, Part 4). On its change of undertook. He retired from the Citizens Military Force (CMF) name to Corella he became Honorary Assistant Editor and with a rank of Colonel in 1972, which emphasises the scale of remained so from 1977 to 1981, during which time 25 issues his achievement. His achievements in ornithology are at least as were published (Vol. 1, Part 1 to Vol. 5, Part 5). He then became great and in my view put him as one of the all time greats as an editor of Special Publications (mostly seabird islands) from 1982 amateur ornithologist in the history of Australia. to 1992 covering 51 issues (Vol. 6, Part 1 to Vol. 16, Part 4), and was Seabird Island Editor (mainly a change of name) from 1993 Born in April 1922, he had an interest in birds from an until his death in 2000, covering a further 31 issues (Vol.
    [Show full text]
  • The Development of Rock Coast Morphology on Lord Howe Island, Australia Mark Edward Dickson University of Wollongong
    University of Wollongong Research Online University of Wollongong Thesis Collection University of Wollongong Thesis Collections 2002 The development of rock coast morphology on Lord Howe Island, Australia Mark Edward Dickson University of Wollongong Recommended Citation Dickson, Mark Edward, The development of rock coast morphology on Lord Howe Island, Australia, Doctor of Philosophy thesis, School of Geosciences, University of Wollongong, 2002. http://ro.uow.edu.au/theses/1987 Research Online is the open access institutional repository for the University of Wollongong. For further information contact the UOW Library: [email protected] THE DEVELOPMENT OF ROCK COAST MORPHOLOGY ON LORD HOWE ISLAND, AUSTRALIA A thesis submitted in fulfilment of the requirements for the award of the degree of DOCTOR OF PHILOSOPHY from UNIVERSITY OF WOLLONGONG by MARK EDWARD DICKSON (BSc. Hons, Massey University) SCHOOL OF GEOSCIENCES UNIVERSITY OF WOLLONGONG 2002 This work has not been submitted for a higher degree at any other academic institution and, unless otherwise acknowledged, is my own work. Mark Edward Dickson Lord Howe Island, southwest Pacific 1 Abstract Lord Howe Island, situated 600 km east of Australia, provides a unique opportunity to study the development of rock coast landforms and the long-term planation of an oceanic island. The island is a remnant of a large shield volcano that was built by late-Miocene hotspot volcanism. Since this time, the island has gradually migrated northward into warmer seas, and marine planation, operating at a decreasing rate over time, has reduced the island to a vestige of the original volcano. Lord Howe Island currently lies at the southern limit to coral growth.
    [Show full text]
  • FOI 190702 Part 5 Document Set Redacted
    LHIB Rodent Eradication Project Public Environment Report 1993). The highly successful captive breeding and release program resulted in the release of 82 birds bred from just three breeding pairs originally captured (NPWS, 2002). Prior to the commencement of the program it was estimated that only 37 individuals remained in the wild. In preparation for the LHI REP, a captive management pilot study that was conducted in 2013 for woodhen and currawongs on LHI (Taronga Conservation Society Australia, 2014) has also added significant knowledge on the captive management of the two species. The pilot study showed that woodhens and currawongs could be held in large groups for prolonged periods with no observable impact. All 20 woodhens and 10 currawongs were successfully released at their individual capture sites. The trial report is included in Appendix D – LHI Trials Package. Figure 8 Woodhens in 2013 Captive Trial Figure 9 Currawongs in 2013 Captive Trial Figure 10 Woodhen Aviary in 2013 Captive Trial Figure 11 Currawong aviaries in 2013 Captive Trial 2.2.1 Bird capture Only experienced staff will be involved in the capture of both species. These include rangers on LHI who are involved in the capture of woodhen for banding as part of the annual monitoring of the population and Office of Environment and Heritage (OEH) scientific officers (with assistance from the LHIB rangers) that have been catching and banding currawongs since 2005 to determine their population status and movements. Hand-nets will be used to capture woodhen, and clap-traps will be used for currawongs. Upon capture, birds will be placed into cloth bags or ventilated cardboard boxes (one bird per bag or box) and taken to the holding facility where they will be checked by a veterinarian.
    [Show full text]
  • Australia's Biodiversity – Responses to Fire
    AUSTRALIA’S BIODIVERSITY – RESPONSES TO FIRE Plants, birds and invertebrates A.M. Gill, J.C.Z. Woinarski, A. York Biodiversity Technical Paper, No. 1 Cover photograph credits Group of 3 small photos, front cover: • Cockatiel. The Cockatiel is one of a group of highly mobile birds which track resource-rich areas. These areas fluctuate across broad landscapes in response to local rainfall or fire events. Large flocks may congregate on recently-burnt areas. /Michael Seyfort © Nature Focus • Fern regeneration post-fire, Clyde Mountain, NSW, 1988. /A. Malcolm Gill • These bull ants (Myrmecia gulosa) are large ants which generally build small mounds and prefer open areas in which to forage for food. They are found on frequently burnt sites. Despite their fierce appearance, they feed mainly on plant products. /Alan York. Small photo, lower right, front cover: • Fuel reduction burning in dry forest. This burn is towards the “hotter” end of the desirable range. /Alan York Large photo on spine: • Forest fire, Kapalga, NT, 1990. /Malcolm Gill Small photo, back cover: • Cycad response after fire near Darwin, NT. /Malcolm Gill ISBN 0 642 21422 0 Published by the Department of the Environment and Heritage © Commonwealth of Australia, 1999 Information presented in this document may be copied for personal use or pub- lished for educational purposes, provided that any extracts are acknowledged. The views expressed in this paper are those of the authors and do not necessarily represent the views of the Department, or of the Commonwealth of Australia. Biodiversity Convention and Strategy Section Department of the Environment and Heritage GPO Box 636 CANBERRA ACT 2601 General enquiries, telephone 1800 803772 Design: Design One Solutions, Canberra Printing: Goanna Print, Canberra Printed in Australia on recycled Australian paper AUSTRALIA’S BIODIVERSITY – RESPONSES TO FIRE Plants, birds and invertebrates A.
    [Show full text]
  • Tasmaniart Wilderness Photography of Tasmania Southwest Tasmania Selection
    TasmaniART Wilderness Photography of Tasmania Southwest Tasmania Selection by Adam Holbrook The southwest of Tasmania is wild, beautiful, isolated, and very unpredictable. Along the south coast of Tasmania there is a walking track known as the South Coast Track. The eastern end of this track is at Cockle Creek (south from Southport, Lune River, Hastings Caves), and the western end is at Melaleuca, which is in the far southwest of Tasmania. Further to the southwest is a lesser travelled walking track extending to the far south- western point of Tasmania, South West Cape. To the north of South West Cape is not really a track, more just a route, along the South West Cape Range and some western beaches. To the north of these is Port Davey and Bathurst Harbour. All of these areas are located within the Tasmanian Wilderness World Heritage Area, and are part of the Southwest National Park. It is these areas that feature in this exhibition. The walks in this area of Tasmania are more difficult than many other Tasmanian walks, such as the Overland Track. It is normal to have wet feet every day, and there is mud at least knee deep on some parts of the track. It is often necessary to wait for water levels to recede when crossing creeks, rivers and beaches. There are numerous steep climbs, and long distances between campsites. Snakes are often seen sunning themselves on tracks or on buttongrass clumps. 1. Ketchem Bay, Tas. A little bit of time exposure was used to capture the water swirling between the rocks.
    [Show full text]
  • Lord Howe Island Rodent Eradication Project DRAFT Public Environment Report EPBC 2016/7703
    Lord Howe Island Rodent Eradication Project DRAFT Public Environment Report EPBC 2016/7703 Lord Howe Island Board, 2016 “This project is jointly funded through the Lord Howe Island Board, the Australian Government’s National Landcare Programme and the New South Wales Government’s Environmental Trust.” LHIB Rodent Eradication Project Public Environment Report Quality Information Lord Howe Island Rodent Eradication Project Document DRAFT Public Environment Report EPBC 2016/7703 Date 19 October 2016 Revision History Authorised Revision Revision Details Authors Date Name/Position Signature 00 7 October Draft for DOEE 2016 adequacy review 01 19 October Final Draft for Public See Appendix C Andrew Walsh 2016 Comment Project Manager Rodent Eradication LHIB The Lord Howe Island Board is pleased to allow this material to be reproduced in whole or in part for educational and non-commercial use, provided the meaning is unchanged and its source, publisher and authorship are acknowledged. Any representation, statement, opinion, advice, information or data, expressed or implied in this publication is made in good faith but on the basis that the State of New South Wales, its agents and employees are not liable (whether by reason or negligence, lack of care or otherwise) to any person for any damage or loss whatsoever which has occurred or may occur in relation to that person taking or not taking (as the case may be) action in respect of any representation, statement, advice, information or data referred to above. Requests for information or comments regarding this Report are best directed to: Project Manager - Rodent Eradication Lord Howe Island Board Bowker Avenue (PO Box 5) Lord Howe Island NSW 2898 Phone: (02) 6563 2066 Fax: (02) 6563 2127 Email: [email protected] This Plan should be cited as follows: Lord Howe Island Board, (2016).
    [Show full text]
  • Islands of the Port Davey Area: Biodiversity and Oil Spill Response Survey
    Islands of the Port Davey Area Biodiversity & Oil Spill Response Survey November 2013 NATURE CONSERVATION REPORT SERIES 13/07 Biodiversity Conservation Branch Resource Management and Conservation Division Department Of Primary Industries, Parks, Water and Environment i Citation: Carlyon, K., Philips, A., Rudman, T. and Visoiu, M. (2013) Islands of the Port Davey Area: Biodiversity and Oil Spill Response Survey. Resource Management and Conservation Division, DPIPWE, Hobart, Nature Conservation Report Series 13/07 ISBN: 978-0-9922694-9-4 (electronic publication only) ISSN: 1838-7403 All photographs taken by the authors unless otherwise acknowledged. © Department of Primary Industries, Parks, Water and Environment, 2013. This work is copyright. It may be reproduced for study, research or training purposes subject to an acknowledgement of the sources and no commercial use or sale. Requests and enquiries concerning reproduction and rights should be addressed to the Resource Management and Conservation Division, DPIPWE. Table of Contents SUMMARY I INTRODUCTION 2 SURVEY PERSONNEL 3 METHODOLOGY 3 Seabird surveys:............................................................................................................................................... 7 Seal surveys: .................................................................................................................................................... 7 Surveys for other vertebrate species: .............................................................................................................
    [Show full text]
  • Commercialising Translocation of Southern Rock Lobster
    See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/265686422 Commercialising translocation of Southern Rock Lobster Technical Report · January 2014 DOI: 10.13140/2.1.2601.6002 CITATIONS READS 0 59 5 authors, including: Caleb Gardner Klaas Hartmann University of Tasmania University of Tasmania 199 PUBLICATIONS 1,708 CITATIONS 79 PUBLICATIONS 1,423 CITATIONS SEE PROFILE SEE PROFILE Bridget S. Green University of Tasmania 76 PUBLICATIONS 1,024 CITATIONS SEE PROFILE Some of the authors of this publication are also working on these related projects: Fishing for change: enhancing Australia’s seafood futures View project Resolving conflict between giant crab trap and benthic trawl fisheries View project All content following this page was uploaded by Caleb Gardner on 17 September 2014. The user has requested enhancement of the downloaded file. All in-text references underlined in blue are added to the original document and are linked to publications on ResearchGate, letting you access and read them immediately. Commercialising translocation of Southern Rock Lobster Caleb Gardner, Klaas Hartmann, Bridget Green, Hilary Revill and Rodney Treloggen Project No. 2011/744 February 2014 This project was conducted by: Institute for Marine and Antarctic Studies (IMAS), University of Tasmania, Private Bag 49, Hobart TAS 7001 [email protected]; +61 3 62277233, Department of Primary Industries, Parks, Water and Environment (DPIPWE), Tasmanian Government, PO Box 44, Hobart TAS 7001, and The Tasmanian Rock Lobster Fishermen’s Association (TRLFA), PO Box 109, South Hobart, TAS 7004 ISBN: 978-1-86295-756-5 Copyright, 2014: The Seafood CRC Company Ltd, the Fisheries Research and Development Corporation, University of Tasmania, Tasmanian Government and The Tasmanian Rock Lobster Fishermen’s Association.
    [Show full text]
  • Australian Natural HISTORY Lord Howe Island Is One of the Most Interesting and Beautiful Islands in the World
    AUSTRAliAN NATURAl HISTORY lord Howe Island is one of the most interesting and beautiful islands in the world. Its beauty is legendary. Recent visitors from the cruise ship, M.S. Lindblad Explorer. a well-travelled naturalist group seeking out-of­ the-way places. considered it perhaps the most beautiful island they had ever seen. The high. tree-covered hills to the north; the narrow. low cen­ tral portion (with which man has dealt most kindly); the turquoise lagoon bordered by breakers and a long. curving arch of beach; and the huge majesty of Mount Lidgbird and Mount Gower thrusting their peaks up from the Pacific to dominate the scene with white bosun birds etched against their dark basalt cliffs-a remarkable land- and seascape. The island is biologically interesting because it has rich and varied flora and fauna with an unusually high proportion of species found nowhere else. Its lovely lagoon has a flourishing coral reef - probably the southern­ most in the world. and there are many species of fish. coral. and other animals which have evolved in the area because of its relative isolation from the great coral reefs in the tropics to the north. Yet this unspoilt island with its rich natural values is not thousands of miles from anywhere- it is four hours by seaplane from Sydney, Australia's largest city. This special issue gathers together some of the interesting natural history of Lord Howe Island. By the time it appears. Lord Howe will have an airstrip, which is being built as I write. There is no doubt that it will be visually damaging.
    [Show full text]