Digital_Repository/Misc/Mass downloads/UTas/1254.html at 306ce8fa1f6a963a67d8f587e4c2fecc30412ae0

nigel.stanger / Digital_Repository
Find file
Newer
Older
Digital_Repository / Misc / Mass downloads / UTas / 1254.html
Nigel Stanger on 7 May 2013 30 KB - Imported Misc directory.
Raw Blame History
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
  <head>
    <title>UTas ePrints - A most unusual barrens: Complex interactions between lobsters, sea urchins and algae facilitates spread of an exotic kelp in eastern Tasmania</title>
    <script type="text/javascript" src="http://eprints.utas.edu.au/javascript/auto.js"><!-- padder --></script>
    <style type="text/css" media="screen">@import url(http://eprints.utas.edu.au/style/auto.css);</style>
    <style type="text/css" media="print">@import url(http://eprints.utas.edu.au/style/print.css);</style>
    <link rel="icon" href="/images/eprints/favicon.ico" type="image/x-icon" />
    <link rel="shortcut icon" href="/images/eprints/favicon.ico" type="image/x-icon" />
    <link rel="Top" href="http://eprints.utas.edu.au/" />
    <link rel="Search" href="http://eprints.utas.edu.au/cgi/search" />
    <meta content="Johnson, Craig R." name="eprints.creators_name" />
<meta content="Valentine, Joseph P." name="eprints.creators_name" />
<meta content="Pederson, Hugh G." name="eprints.creators_name" />
<meta content="Craig.Johnson@utas.edu.au" name="eprints.creators_id" />
<meta name="eprints.creators_id" />
<meta name="eprints.creators_id" />
<meta content="Heinzeller, T." name="eprints.editors_name" />
<meta content="Nebelsick, J.H." name="eprints.editors_name" />
<meta content="book_section" name="eprints.type" />
<meta content="2007-06-25" name="eprints.datestamp" />
<meta content="2008-02-06T12:15:54Z" name="eprints.lastmod" />
<meta content="show" name="eprints.metadata_visibility" />
<meta content="A most unusual barrens: Complex interactions between lobsters, sea
urchins and algae facilitates spread of an exotic kelp in eastern Tasmania
" name="eprints.title" />
<meta content="pub" name="eprints.ispublished" />
<meta content="270702" name="eprints.subjects" />
<meta content="public" name="eprints.full_text_status" />
<meta content="paper" name="eprints.pres_type" />
<meta content="Sea urchin (Heliocidaris erythrogramma) 'barrens' in central eastern Tasmania differ from
typical barrens elsewhere in that they seasonally support dense cover of the introduced kelp Undaria pinnatifida.
Sporophytes of this kelp establish in dense stands only when the native algal canopy is reduced, and experimental
removal of native algae results in greatly increased cover of U. pinnatifida and sediment. Urchin
barrens are integral to widespread establishment of U. pinnatifida because urchin grazing and sediment on
barrens prevents native canopy-forming algae from colonizing, but is insufficient to prevent proliferation of
U. pinnatifida. Estimates of population growth of the urchin and in situ rates of lobster predation on urchins
reveal that fishing of lobsters can account for increases in urchin densities, ostensibly to levels enabling barrens
formation. Lobsters are far more important predators of H. erythrogramma than are fishes. Thus, fishing
of rock lobsters may ultimately account for the proliferation of U. pinnatifida in this area.
" name="eprints.abstract" />
<meta content="2004-12" name="eprints.date" />
<meta content="published" name="eprints.date_type" />
<meta content="Balkema" name="eprints.publisher" />
<meta content="Leiden" name="eprints.place_of_pub" />
<meta content="213-220" name="eprints.pagerange" />
<meta content="UNSPECIFIED" name="eprints.thesis_type" />
<meta content="TRUE" name="eprints.refereed" />
<meta content="978-0-415-36481-2" name="eprints.isbn" />
<meta content="Echinoderms: Munchen. Proceedings of the 11th International Echinoderm Conference" name="eprints.book_title" />
<meta content="http://www.informaworld.com/smpp/title~db=all~content=t735003435~tab=toc" name="eprints.official_url" />
<meta content="Andrew, N.L. &amp; Viejo, R.M., 1998. Ecological limits to the invasion
of Sargassum muticum in northern Spain. Aquat.
Bot. 60, 251-263.
Bax, N., Carlton, J.T., Mathews-Amos, A., Haedrich, R.L.,
Howarth, F.G., Purcell, J.E., Rieser, A. &amp; Gray, A., 2001.
The control of biological invasions in the world's oceans.
Cons. Biol. 15, 1234-1246.
Bernstein, B.B., Williams, B.E. &amp; Mann, K.H. 1981. The role
of behavioral responses to predators in modifying urchins'
(Strongylocentrotus droebachiensis) destructive grazing
and seasonal foraging patterns. Mar. Biol. 63: 39-49.
Carlton, J.T., 1999. Scale and ecological consequences of biological
invasions in the world's oceans. In: O.T. Sandlund,
P.J. Schei &amp; A. Viken (eds.), Invasive species and biodiversity
management: 195-212. Kluwer, Dordecht.
Casa, G.N. &amp; Piriz, M.L. 1996. Surveys of Undaria pinnatifida
Laminariales, Phaeophyta in Golfo Nuevo, Argentina. Hydrobiologia
326-327, 213-215.
Castric-Fey, A., Girard, A. &amp; L'Hardy-Halos, M.T. 1993. The
distribution of Undaria pinnatifida Phaeophyceae, Laminariales
on the coast of St Malo Brittany, France. Bot. Mar.
36, 351-358.
Chapman, A.R.O. &amp; Johnson, C.R. 1990. Disturbance and organization
of macroalgal assemblages in the northwest Atlantic.
Hydrobiologia 192: 77-122.
Curiel, D., Bellemo, G., Marzocchi, M., Scattolin, M. &amp; Parisi,
G. 1998. Distribution of introduced Japanese macroalgae
Undaria pinnatifida, Sargassum muticum Phaeophyta and
Antithamnion pectinatum Rhodophyta in the Lagoon of
Venice. Hydrobiologia 385, 17-22.
Devinny, J.S. &amp; Volse, I.A. 1978. The effects of sediments on
the development of Macrocystis pyrifera gametophytes.
Mar. Biol. 48, 343-348.
Edgar, G. J. &amp; Barrett, N. S. 1999. Effects of the declaration of
marine reserves on Tasmanian reef fishes, invertebrates and
plants. J. Exp. Mar. Biol. Ecol. 242, 107-144.
Estes, J.A. &amp; Duggins, D.O. 1995. sea otters and kelp forests in
Alaska: generality and variation in a community ecological
paradigm. Ecol. Monog. 65: 75-100.
Estes, J.A., Tinker, M.T., Williams, T.M., &amp; Doak, D.F. 1998.
Killer whale predation on sea otters linking oceanic and
nearshore ecosystems. Science 282: 473-476.
Fletcher, R.L. &amp; Manfredi, R.L. 1995. The occurrence of
Undaria pinnatifida Phaeophyceae, Laminariales on the
South Coast of England. Bot. Mar. 38, 355-358.
Floc'h, J., Pajot, R., &amp; Mouret, V. 1996. Undaria pinnatifida
Laminariales, Phaeophyta 12 years after its introduction
into the Atlantic Ocean. Hydrobiologia 326/327, 217-222.
Frusher, S.D. 1997. Stock Assessment Report : Rock Lobster.
Dept. Prim. Ind. Fish. Internal Report No. 35, 79pp. Tasmanian
State Printer, Hobart.
Hay, C.H. &amp; Luckens, P.A. 1987. The Asian kelp Undaria
pinnatifida Phaeophyta: Laminariales found in a New Zealand
harbour. New. Zeal. J. Bot. 25, 329-332.
Jackson, J.B.C., Kirby, M.X., Berger, W.H., Bjorndal, K.A.,
Botsford, L.W., Bourque, B.J., Bradbury, R.H., Cooke, R.,
Erlandson, J., Estes, J.A., Hughes, T.P., Kidwell, S., Lange,
C.B., Lenihan, H.S., Pandolfi, J.M., Peterson, C.H.,
Steneck, R.S., Tegner, M.J. &amp; Warner, R.R. 2001. Historical
overfishing and the recent collapse of coastal ecosystems.
Science 293: 629-638.
Johnson, C.R. &amp; Mann, K.H. 1988. Diversity, patterns of adaptation,
and stability of Nova Scotian kelp beds. Ecol. Monogr.
58: 129-154.
Kendrick, G.A. 1991. Recruitment of coralline crusts and filamentous
turf algae in the Galapagos archipelago: effect of
simulated scour, erosion and accretion. J. Exp. Mar. Biol.
Ecol. 147, 47-63.
Lawrence, J.M. 1975. On the relationships between marine
plants and sea urchins. Oceanogr. Mar. Biol. Annu. Rev.
13, 213-286.
Levins, S.A. 1992. The problem of pattern and scale in ecology.
Ecology 73: 1943-1967.
Lodge, D.M. 1993. Biological invasions: Lessons for ecology.
Trends Ecol. Evol. 8: 133-137.
Mayfield, S. &amp; Branch, G. M. 2000. Interrelations among rock
lobsters, sea urchins, and juvenile abalone: implications for
community management. Can. J. Fish. Aquat. Sci. 57: 2175
-2185.
Parker, I.M., Simberloff, D., Lonsdale, W.M., Goodell, K.,
Wonham, M., Kareiva, P.M., Williamson, M.H., Von
Holle, B., Moyle, P.B., Byers, J.E., Goldwasser, L. 1999.
Impact: toward a framework for understanding the ecological
effects of invaders. Biol. Invasions 1: 3-19.
Pederson, H. G. 2003. Population dynamics of the sea urchin
Heliocidaris erythrogramma on the east coast of Tasmania.
PhD thesis, University of Tasmania.
Pederson, H.G. &amp; Johnson, C.R. (in revision). Predation on sea
urchins inside kelp beds. Mar. Ecol. Prog. Ser.
Rueness, J. 1989. Sargassum muticum and other introduced
Japanese macroalgae: biological pollution of European
coasts. Mar. Pollut. Bull. 20, 173-176.
Sanderson, J.C. 1990. A preliminary survey of the distribution
of the introduced macroalga, Undaria pinnatifida Harvey
Suringer on the east coast of Tasmania, Australia. Bot. Mar.
33:153-157.
Shears, N.T. &amp; Babcock, R.C. 2003. Continuing trophic cascade
effects after 25 years of no-take marine reserve protection.
Mar. Ecol. Prog. Ser. 246: 1-16.
Steneck, R.S., Graham, M.H., Bourque, B.J., Corbett, D., Erlandson,
J.M., Estes, J.A. &amp; Tegner, M.J. 2002. Kelp forest
ecosystems: biodiversity, stability, resilience and future.
Environ. Conserv. 29, 436-459.
Tegner, M. J. &amp; Dayton, P.K. 2000. Ecosystem effects of fishing
in kelp forest communities. ICES J. Mar. Sci. 57: 579-
589.
Umar, M.J., McCook, L.J. &amp; Price, I.R. 1998. Effects of sediment
deposition on the seaweed Sargassum on a fringing
coral reef. Coral Reefs 17, 169-177.
Valentine, J.P. 2003. Establishment and persistence of dense
stands of the introduced kelp Undaria pinnatifida. PhD thesis,
University of Tasmania.
Valentine, J.P. &amp; Johnson, C.R. 2003. Establishment of the introduced
kelp Undaria pinnatifida in Tasmania depends on
disturbance to native algal assemblages. J. Exp. Mar. Biol.
Ecol. 295, 63-90.
Valentine, J.P. &amp; Johnson, C.R. 2004a. Establishment of the introduced
kelp Undaria pinnatifida following dieback of the
native macroalga Phyllospora comosa in Tasmania, Australia.
Mar. Freshwat Res. 55, 223-230.
Valentine, J.P. &amp; Johnson, C.R. in revision. Does intensive
grazing by the sea urchin Heliocidaris erythrogramma enable
dense stands of the introduced kelp Undaria pinnatifida
to persist? Mar. Ecol. Prog. Ser.
Wiens, J.A. 1989. Spatial scaling in ecology. Function. Ecol. 3:
385-397." name="eprints.referencetext" />
<meta content="Johnson, Craig R. and Valentine, Joseph P. and Pederson, Hugh G. (2004) A most unusual barrens: Complex interactions between lobsters, sea urchins and algae facilitates spread of an exotic kelp in eastern Tasmania. In: Echinoderms: Munchen. Proceedings of the 11th International Echinoderm Conference. . Balkema, Leiden, pp. 213-220. ISBN 978-0-415-36481-2" name="eprints.citation" />
<meta content="http://eprints.utas.edu.au/1254/1/2004_Johnson%2C_Valentine_%26_Pederson_11th_Int_Echinoderm_Conf.pdf" name="eprints.document_url" />
<link rel="schema.DC" href="http://purl.org/DC/elements/1.0/" />
<meta content="A most unusual barrens: Complex interactions between lobsters, sea
urchins and algae facilitates spread of an exotic kelp in eastern Tasmania
" name="DC.title" />
<meta content="Johnson, Craig R." name="DC.creator" />
<meta content="Valentine, Joseph P." name="DC.creator" />
<meta content="Pederson, Hugh G." name="DC.creator" />
<meta content="270702 Marine and Estuarine Ecology (incl. Marine Ichthyology)" name="DC.subject" />
<meta content="Sea urchin (Heliocidaris erythrogramma) 'barrens' in central eastern Tasmania differ from
typical barrens elsewhere in that they seasonally support dense cover of the introduced kelp Undaria pinnatifida.
Sporophytes of this kelp establish in dense stands only when the native algal canopy is reduced, and experimental
removal of native algae results in greatly increased cover of U. pinnatifida and sediment. Urchin
barrens are integral to widespread establishment of U. pinnatifida because urchin grazing and sediment on
barrens prevents native canopy-forming algae from colonizing, but is insufficient to prevent proliferation of
U. pinnatifida. Estimates of population growth of the urchin and in situ rates of lobster predation on urchins
reveal that fishing of lobsters can account for increases in urchin densities, ostensibly to levels enabling barrens
formation. Lobsters are far more important predators of H. erythrogramma than are fishes. Thus, fishing
of rock lobsters may ultimately account for the proliferation of U. pinnatifida in this area.
" name="DC.description" />
<meta content="Balkema" name="DC.publisher" />
<meta content="Heinzeller, T." name="DC.contributor" />
<meta content="Nebelsick, J.H." name="DC.contributor" />
<meta content="2004-12" name="DC.date" />
<meta content="Book Chapter" name="DC.type" />
<meta content="PeerReviewed" name="DC.type" />
<meta content="application/pdf" name="DC.format" />
<meta content="http://eprints.utas.edu.au/1254/1/2004_Johnson%2C_Valentine_%26_Pederson_11th_Int_Echinoderm_Conf.pdf" name="DC.identifier" />
<meta content="http://www.informaworld.com/smpp/title~db=all~content=t735003435~tab=toc" name="DC.relation" />
<meta content="Johnson, Craig R. and Valentine, Joseph P. and Pederson, Hugh G. (2004) A most unusual barrens: Complex interactions between lobsters, sea urchins and algae facilitates spread of an exotic kelp in eastern Tasmania. In: Echinoderms: Munchen. Proceedings of the 11th International Echinoderm Conference. . Balkema, Leiden, pp. 213-220. ISBN 978-0-415-36481-2" name="DC.identifier" />
<meta content="http://eprints.utas.edu.au/1254/" name="DC.relation" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1254/BibTeX/epprod-eprint-1254.bib" title="BibTeX" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1254/ContextObject/epprod-eprint-1254.xml" title="OpenURL ContextObject" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1254/ContextObject::Dissertation/epprod-eprint-1254.xml" title="OpenURL Dissertation" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1254/ContextObject::Journal/epprod-eprint-1254.xml" title="OpenURL Journal" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1254/DC/epprod-eprint-1254.txt" title="Dublin Core" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1254/DIDL/epprod-eprint-1254.xml" title="DIDL" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1254/EndNote/epprod-eprint-1254.enw" title="EndNote" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1254/HTML/epprod-eprint-1254.html" title="HTML Citation" type="text/html; charset=utf-8" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1254/METS/epprod-eprint-1254.xml" title="METS" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1254/MODS/epprod-eprint-1254.xml" title="MODS" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1254/RIS/epprod-eprint-1254.ris" title="Reference Manager" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1254/Refer/epprod-eprint-1254.refer" title="Refer" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1254/Simple/epprod-eprint-1254text" title="Simple Metadata" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1254/Text/epprod-eprint-1254.txt" title="ASCII Citation" type="text/plain; charset=utf-8" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1254/XML/epprod-eprint-1254.xml" title="EP3 XML" type="text/xml" />
 
  </head>
  <body bgcolor="#ffffff" text="#000000" onLoad="loadRoutine(); MM_preloadImages('images/eprints/ePrints_banner_r5_c5_f2.gif','images/eprints/ePrints_banner_r5_c7_f2.gif','images/eprints/ePrints_banner_r5_c8_f2.gif','images/eprints/ePrints_banner_r5_c9_f2.gif','images/eprints/ePrints_banner_r5_c10_f2.gif','images/eprints/ePrints_banner_r5_c11_f2.gif','images/eprints/ePrints_banner_r6_c4_f2.gif')">
    
    <div class="ep_noprint"><noscript><style type="text/css">@import url(http://eprints.utas.edu.au/style/nojs.css);</style></noscript></div>
 
 
 
 
<table width="795" border="0" cellspacing="0" cellpadding="0">
  <tr>
    <td><script language="JavaScript1.2">mmLoadMenus();</script>
      <table border="0" cellpadding="0" cellspacing="0" width="795">
        <!-- fwtable fwsrc="eprints_banner_final2.png" fwbase="ePrints_banner.gif" fwstyle="Dreamweaver" fwdocid = "1249563342" fwnested="0" -->
        <tr>
          <td><img src="/images/eprints/spacer.gif" width="32" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="104" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="44" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="105" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="41" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="16" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="68" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="68" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="68" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="82" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="69" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="98" height="1" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="1" border="0" alt="" /></td>
        </tr>
        <tr>
          <td colspan="12"><img name="ePrints_banner_r1_c1" src="/images/eprints/ePrints_banner_r1_c1.gif" width="795" height="10" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="10" border="0" alt="" /></td>
        </tr>
        <tr>
          <td rowspan="6"><img name="ePrints_banner_r2_c1" src="/images/eprints/ePrints_banner_r2_c1.gif" width="32" height="118" border="0" alt="" /></td>
          <td rowspan="5"><a href="http://www.utas.edu.au/"><img name="ePrints_banner_r2_c2" src="/images/eprints/ePrints_banner_r2_c2.gif" width="104" height="103" border="0" alt="" /></a></td>
          <td colspan="10"><img name="ePrints_banner_r2_c3" src="/images/eprints/ePrints_banner_r2_c3.gif" width="659" height="41" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="41" border="0" alt="" /></td>
        </tr>
        <tr>
          <td colspan="3"><a href="http://eprints.utas.edu.au/"><img name="ePrints_banner_r3_c3" src="/images/eprints/ePrints_banner_r3_c3.gif" width="190" height="31" border="0" alt="" /></a></td>
          <td rowspan="2" colspan="7"><img name="ePrints_banner_r3_c6" src="/images/eprints/ePrints_banner_r3_c6.gif" width="469" height="37" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="31" border="0" alt="" /></td>
        </tr>
        <tr>
          <td colspan="3"><img name="ePrints_banner_r4_c3" src="/images/eprints/ePrints_banner_r4_c3.gif" width="190" height="6" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="6" border="0" alt="" /></td>
        </tr>
        <tr>
          <td colspan="2"><img name="ePrints_banner_r5_c3" src="/images/eprints/ePrints_banner_r5_c3.gif" width="149" height="1" border="0" alt="" /></td>
          <td rowspan="2" colspan="2"><a href="/information.html" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821132634_0,0,25,null,'ePrints_banner_r5_c5');MM_swapImage('ePrints_banner_r5_c5','','/images/eprints/ePrints_banner_r5_c5_f2.gif',1);"><img name="ePrints_banner_r5_c5" src="/images/eprints/ePrints_banner_r5_c5.gif" width="57" height="25" border="0" alt="About" /></a></td>
          <td rowspan="2"><a href="/view/" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133021_1,0,25,null,'ePrints_banner_r5_c7');MM_swapImage('ePrints_banner_r5_c7','','/images/eprints/ePrints_banner_r5_c7_f2.gif',1);"><img name="ePrints_banner_r5_c7" src="/images/eprints/ePrints_banner_r5_c7.gif" width="68" height="25" border="0" alt="Browse" /></a></td>
          <td rowspan="2"><a href="/perl/search/simple" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133201_2,0,25,null,'ePrints_banner_r5_c8');MM_swapImage('ePrints_banner_r5_c8','','/images/eprints/ePrints_banner_r5_c8_f2.gif',1);"><img name="ePrints_banner_r5_c8" src="/images/eprints/ePrints_banner_r5_c8.gif" width="68" height="25" border="0" alt="Search" /></a></td>
          <td rowspan="2"><a href="/perl/register" onMouseOut="MM_swapImgRestore();MM_startTimeout();" onMouseOver="MM_showMenu(window.mm_menu_1018171924_3,0,25,null,'ePrints_banner_r5_c9');MM_swapImage('ePrints_banner_r5_c9','','/images/eprints/ePrints_banner_r5_c9_f2.gif',1);"><img name="ePrints_banner_r5_c9" src="/images/eprints/ePrints_banner_r5_c9.gif" width="68" height="25" border="0" alt="register" /></a></td>
          <td rowspan="2"><a href="/perl/users/home" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133422_4,0,25,null,'ePrints_banner_r5_c10');MM_swapImage('ePrints_banner_r5_c10','','/images/eprints/ePrints_banner_r5_c10_f2.gif',1);"><img name="ePrints_banner_r5_c10" src="/images/eprints/ePrints_banner_r5_c10.gif" width="82" height="25" border="0" alt="user area" /></a></td>
          <td rowspan="2"><a href="/help/" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133514_5,0,25,null,'ePrints_banner_r5_c11');MM_swapImage('ePrints_banner_r5_c11','','/images/eprints/ePrints_banner_r5_c11_f2.gif',1);"><img name="ePrints_banner_r5_c11" src="/images/eprints/ePrints_banner_r5_c11.gif" width="69" height="25" border="0" alt="Help" /></a></td>
          <td rowspan="3" colspan="4"><img name="ePrints_banner_r5_c12" src="/images/eprints/ePrints_banner_r5_c12.gif" width="98" height="40" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="1" border="0" alt="" /></td>
        </tr>
        <tr>
          <td rowspan="2"><img name="ePrints_banner_r6_c3" src="/images/eprints/ePrints_banner_r6_c3.gif" width="44" height="39" border="0" alt="ePrints home" /></td>
          <td><a href="/" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('ePrints_banner_r6_c4','','/images/eprints/ePrints_banner_r6_c4_f2.gif',1);"><img name="ePrints_banner_r6_c4" src="/images/eprints/ePrints_banner_r6_c4.gif" width="105" height="24" border="0" alt="ePrints home" /></a></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="24" border="0" alt="" /></td>
        </tr>
        <tr>
          <td><img name="ePrints_banner_r7_c2" src="/images/eprints/ePrints_banner_r7_c2.gif" width="104" height="15" border="0" alt="" /></td>
          <td colspan="8"><img name="ePrints_banner_r7_c4" src="/images/eprints/ePrints_banner_r7_c4.gif" width="517" height="15" border="0" alt="" /></td>
          <td><img src="/images/eprints/spacer.gif" width="1" height="15" border="0" alt="" /></td>
        </tr>
      </table></td>
  </tr>
    <tr><td><table width="100%" style="font-size: 90%; border: solid 1px #ccc; padding: 3px"><tr>
      <td align="left"><a href="http://eprints.utas.edu.au/cgi/users/home">Login</a> | <a href="http://eprints.utas.edu.au/cgi/register">Create Account</a></td>
      <td align="right" style="white-space: nowrap">
        <form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/search" style="display:inline">
          <input class="ep_tm_searchbarbox" size="20" type="text" name="q" />
          <input class="ep_tm_searchbarbutton" value="Search" type="submit" name="_action_search" />
          <input type="hidden" name="_order" value="bytitle" />
          <input type="hidden" name="basic_srchtype" value="ALL" />
          <input type="hidden" name="_satisfyall" value="ALL" />
        </form>
      </td>
    </tr></table></td></tr>
  <tr>
    <td class="toplinks"><!-- InstanceBeginEditable name="content" -->
 
 
<div align="center">
  
  <table width="720" class="ep_tm_main"><tr><td align="left">
    <h1 class="ep_tm_pagetitle">A most unusual barrens: Complex interactions between lobsters, sea urchins and algae facilitates spread of an exotic kelp in eastern Tasmania</h1>
    <p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Johnson, Craig R.</span> and <span class="person_name">Valentine, Joseph P.</span> and <span class="person_name">Pederson, Hugh G.</span> (2004) <xhtml:em>A most unusual barrens: Complex interactions between lobsters, sea urchins and algae facilitates spread of an exotic kelp in eastern Tasmania.</xhtml:em> In: Echinoderms: Munchen. Proceedings of the 11th International Echinoderm Conference. . Balkema, Leiden, pp. 213-220. ISBN 978-0-415-36481-2</p><p style="margin-bottom: 1em" class="not_ep_block"></p><table style="margin-bottom: 1em" class="not_ep_block"><tr><td valign="top" style="text-align:center"><a onmouseover="EPJS_ShowPreview( event, 'doc_preview_1636' );" onmouseout="EPJS_HidePreview( event, 'doc_preview_1636' );" href="http://eprints.utas.edu.au/1254/1/2004_Johnson%2C_Valentine_%26_Pederson_11th_Int_Echinoderm_Conf.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" border="0" class="ep_doc_icon" /></a><div class="ep_preview" id="doc_preview_1636"><table><tr><td><img alt="" src="http://eprints.utas.edu.au/1254/thumbnails/1/preview.png" border="0" class="ep_preview_image" /><div class="ep_preview_title">Preview</div></td></tr></table></div></td><td valign="top"><a href="http://eprints.utas.edu.au/1254/1/2004_Johnson%2C_Valentine_%26_Pederson_11th_Int_Echinoderm_Conf.pdf"><span class="ep_document_citation">PDF</span></a> - Requires a PDF viewer<br />219Kb</td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://www.informaworld.com/smpp/title~db=all~content=t735003435~tab=toc">http://www.informaworld.com/smpp/title~db=all~content=t735003435~tab=toc</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">Sea urchin (Heliocidaris erythrogramma) 'barrens' in central eastern Tasmania differ from&#13;
typical barrens elsewhere in that they seasonally support dense cover of the introduced kelp Undaria pinnatifida.&#13;
Sporophytes of this kelp establish in dense stands only when the native algal canopy is reduced, and experimental&#13;
removal of native algae results in greatly increased cover of U. pinnatifida and sediment. Urchin&#13;
barrens are integral to widespread establishment of U. pinnatifida because urchin grazing and sediment on&#13;
barrens prevents native canopy-forming algae from colonizing, but is insufficient to prevent proliferation of&#13;
U. pinnatifida. Estimates of population growth of the urchin and in situ rates of lobster predation on urchins&#13;
reveal that fishing of lobsters can account for increases in urchin densities, ostensibly to levels enabling barrens&#13;
formation. Lobsters are far more important predators of H. erythrogramma than are fishes. Thus, fishing&#13;
of rock lobsters may ultimately account for the proliferation of U. pinnatifida in this area.&#13;
</p></div><table style="margin-bottom: 1em" border="0" cellpadding="3" class="not_ep_block"><tr><th valign="top" class="ep_row">Item Type:</th><td valign="top" class="ep_row">Book Chapter</td></tr><tr><th valign="top" class="ep_row">Subjects:</th><td valign="top" class="ep_row"><a href="http://eprints.utas.edu.au/view/subjects/270702.html">270000 Biological Sciences &gt; 270700 Ecology and Evolution &gt; 270702 Marine and Estuarine Ecology (incl. Marine Ichthyology)</a></td></tr><tr><th valign="top" class="ep_row">Collections:</th><td valign="top" class="ep_row">UNSPECIFIED</td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">1254</td></tr><tr><th valign="top" class="ep_row">Deposited By:</th><td valign="top" class="ep_row"><span class="ep_name_citation"><span class="person_name">Professor Craig R. Johnson</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">25 Jun 2007</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">06 Feb 2008 23:15</td></tr><tr><th valign="top" class="ep_row">ePrint Statistics:</th><td valign="top" class="ep_row"><a target="ePrintStats" href="/es/index.php?action=show_detail_eprint;id=1254;">View statistics for this ePrint</a></td></tr></table><p align="right">Repository Staff Only: <a href="http://eprints.utas.edu.au/cgi/users/home?screen=EPrint::View&amp;eprintid=1254">item control page</a></p>
  </td></tr></table>
</div>
 
 
 
    <!-- InstanceEndEditable --></td>
  </tr>
  <tr>
    <td><!-- #BeginLibraryItem "/Library/footer_eprints.lbi" -->
    <table width="795" border="0" align="left" cellpadding="0" class="footer">
  <tr valign="top">
<td colspan="2"><div align="center"><a href="http://www.utas.edu.au">UTAS home</a> | <a href="http://www.utas.edu.au/library/">Library home</a> | <a href="/">ePrints home</a> | <a href="/contact.html">contact</a> | <a href="/information.html">about</a> | <a href="/view/">browse</a> | <a href="/perl/search/simple">search</a> | <a href="/perl/register">register</a> | <a href="/perl/users/home">user area</a> | <a href="/help/">help</a></div><br /></td>
</tr>
<tr><td colspan="2"><p><img src="/images/eprints/footerline.gif" width="100%" height="4" /></p></td></tr>
      <tr valign="top">
        <td width="68%" class="footer">Authorised by the University Librarian<br />
© University of Tasmania ABN 30 764 374 782<br />
      <a href="http://www.utas.edu.au/cricos/">CRICOS Provider Code 00586B</a> | <a href="http://www.utas.edu.au/copyright/copyright_disclaimers.html">Copyright &amp; Disclaimers</a> | <a href="http://www.utas.edu.au/accessibility/index.html">Accessibility</a> | <a href="http://eprints.utas.edu.au/feedback/">Site Feedback</a>  </td>
        <td width="32%"><div align="right">
            <p align="right" class="NoPrint"><a href="http://www.utas.edu.au/"><img src="http://www.utas.edu.au/shared/logos/unioftasstrip.gif" alt="University of Tasmania Home Page" width="260" height="16" border="0" align="right" /></a></p>
            <p align="right" class="NoPrint"><a href="http://www.utas.edu.au/"><br />
            </a></p>
        </div></td>
      </tr>
      <tr valign="top">
        <td><p>  </p></td>
        <td><div align="right"><span class="NoPrint"><a href="http://www.eprints.org/software/"><img src="/images/eprintslogo.gif" alt="ePrints logo" width="77" height="29" border="0" align="bottom" /></a></span></div></td>
      </tr>
    </table>
    <!-- #EndLibraryItem -->
    <div align="center"></div></td>
  </tr>
</table>
 
  </body>
</html>