Newer
Older
Digital_Repository / Misc / Mass downloads / UTas / 1192.html
  1. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
  2. "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  3. <html>
  4. <head>
  5. <title>UTas ePrints - Impact of introduced seastars Asterias amurensis on survivorship of juvenile commercial bivalves Fulvia tenuicostata</title>
  6. <script type="text/javascript" src="http://eprints.utas.edu.au/javascript/auto.js"><!-- padder --></script>
  7. <style type="text/css" media="screen">@import url(http://eprints.utas.edu.au/style/auto.css);</style>
  8. <style type="text/css" media="print">@import url(http://eprints.utas.edu.au/style/print.css);</style>
  9. <link rel="icon" href="/images/eprints/favicon.ico" type="image/x-icon" />
  10. <link rel="shortcut icon" href="/images/eprints/favicon.ico" type="image/x-icon" />
  11. <link rel="Top" href="http://eprints.utas.edu.au/" />
  12. <link rel="Search" href="http://eprints.utas.edu.au/cgi/search" />
  13. <meta content="Ross, D. Jeff" name="eprints.creators_name" />
  14. <meta content="Johnson, Craig R." name="eprints.creators_name" />
  15. <meta content="Hewitt, Chad L." name="eprints.creators_name" />
  16. <meta name="eprints.creators_id" />
  17. <meta content="Craig.Johnson@utas.edu.au" name="eprints.creators_id" />
  18. <meta name="eprints.creators_id" />
  19. <meta content="article" name="eprints.type" />
  20. <meta content="2007-06-20" name="eprints.datestamp" />
  21. <meta content="2008-02-04T05:53:48Z" name="eprints.lastmod" />
  22. <meta content="show" name="eprints.metadata_visibility" />
  23. <meta content="Impact of introduced seastars Asterias amurensis
  24. on survivorship of juvenile commercial bivalves
  25. Fulvia tenuicostata" name="eprints.title" />
  26. <meta content="pub" name="eprints.ispublished" />
  27. <meta content="270702" name="eprints.subjects" />
  28. <meta content="public" name="eprints.full_text_status" />
  29. <meta content="Seastar; Introduced species; Predation; Impacts; Bivalves; Soft sediment; Asterias amurensis" name="eprints.keywords" />
  30. <meta content="The introduction and establishment of the predatory seastar Asterias amurensis in
  31. southern Australia is considered a major threat to benthic marine communities and commercial
  32. bivalves. The impact of A. amurensis on a soft sediment assemblage in SE Tasmania was quantified,
  33. with particular attention to effects of seastar predation on the survivorship of recently settled juveniles
  34. of the commercial bivalve Fulvia tenuicostata. In a manipulative experiment, densities of F.
  35. tenuicostata juveniles were reduced by ca. 15 fold (from 580 to 35 m-2) in the presence of seastars at
  36. background densities relative to the treatment without seastars. In a feeding survey, A. amurensis
  37. exhibited preference for F. tenuicostata following settlement of the bivalve over the period from
  38. December 1997 to January 1998, which comprised 80 and 50% of the seastar's stomach items in February
  39. 1998 and April 1998, respectively. However, A. amurensis preferred a variety of other prey taxa
  40. when the abundance of F. tenuicostata was low, particularly other bivalves, gastropods and the echinoid
  41. Echinocardium cordatum. This indicates that the seastar may potentially affect the abundance
  42. of other prey taxa. The results provide further support to the hypothesis that predation by A. amurensis
  43. is largely responsible for the recent decline and subsequent rarity of large bivalves in its current
  44. distribution in Tasmania. The potential of seastar predation to have wider ecosystem level effects
  45. than the short-term direct effects reported here is a major concern." name="eprints.abstract" />
  46. <meta content="2002-10" name="eprints.date" />
  47. <meta content="published" name="eprints.date_type" />
  48. <meta content="Marine Ecology Progress Series" name="eprints.publication" />
  49. <meta content="241" name="eprints.volume" />
  50. <meta content="99-112" name="eprints.pagerange" />
  51. <meta content="UNSPECIFIED" name="eprints.thesis_type" />
  52. <meta content="TRUE" name="eprints.refereed" />
  53. <meta content="0171-8630" name="eprints.issn" />
  54. <meta content="http://www.int-res.com/abstracts/meps/v241/p99-112/" name="eprints.official_url" />
  55. <meta content="Anger K, Rogal U, Schriever G, Valentine C (1977) In situ
  56. investigations on the echinoderm Asterias rubens as a
  57. predator of soft-bottom communities in the western Baltic
  58. Sea. Helgol Wiss Meeresunters 29:439-459
  59. Brenchley GA (1982) Mechanisms of spatial competition in
  60. marine soft-bottom communities. Biol Bull 60:17-33
  61. Brenchley GA, Carlton JT (1983) Competitive displacement of
  62. native mud snails by introduced periwinkles in the New
  63. England intertidal zone. Biol Bull 165:543-558
  64. Buchanan JB (1966) The biology of Echinocardium cordatum (Echinodermata: Spatangoidea) from different habitats.
  65. J Mar Biol Assoc UK 46:97-114
  66. Buttermore RE, Turner E, Morrice MG (1994) The introduced
  67. northern Pacific seastar Asterias amurensis in Tasmania.
  68. Mem Queensl Mus 36:21-25
  69. Byrne M, Morrice MG, Wolf B (1997) Introduction of the
  70. northern Pacific asteroid Asterias amurensis to Tasmania:
  71. reproduction and current distribution. Mar Biol 127:
  72. 673-685
  73. Carlton JT, Geller JB (1993) Ecological roulette: the global
  74. transport of nonindigenous marine organisms. Science
  75. 261:78-82
  76. Christensen AM (1970) Feeding biology of the sea star
  77. Astropecten Irregularis Pennant. Ophelia 8:1-134
  78. Cohen AN, Carlton JT (1998) Accelerating invasion rate in a
  79. highly invaded estuary. Science 279:555-558
  80. Coughanowr C (1997) State of the Derwent Estuary: a review
  81. of environmental quality data to 1997. Supervising Scientist
  82. Report 129. Supervising Scientist, Canberra
  83. Dame RF (1996) Ecology of marine bivalves: an ecosystem
  84. approach. CRC Press, New York
  85. Dayton PK (1971) Competition, disturbance, and community
  86. organization: the provision and subsequent utilization of
  87. space in a rocky intertidal community. Ecol Monogr 41:
  88. 351-387
  89. Dayton PK, Oliver JS (1980) An evaluation of experimental
  90. analysis of population and community patterns in benthic
  91. marine environments. In: Tenore KR, Coull BC (eds) An
  92. evaluation of experimental analysis of population and
  93. community patterns in benthic marine environments. University
  94. of South Carolina Press, Columbia, p 93-120
  95. Draper NR, Smith H (1981) Applied regression analysis.
  96. Wiley-Liss, New York
  97. Edgar G J (1997) Australian marine life: the plants and animals
  98. of temperate waters. Reed Books, Kew, Victoria
  99. Elton CS (1958) The ecology of invasions by animals and
  100. plants. Methuen, London
  101. Fernandes TF, Huxham M, Piper SR (1999) Predator caging
  102. experiments: a test of the importance of scale. J Exp Mar
  103. Biol Ecol 241:137-154
  104. Fukuyama AK, Oliver JS (1985) Sea star and walrus predation
  105. on bivalves in Morton Sound, Bering Sea, Alaska. Ophelia
  106. 24:17-36
  107. Grannum RK, Murfet NB, Ritz DA, Turner E (1996) The distribution
  108. and impact of the exotic seastar, Asterias amurensis
  109. (Lutken), in Tasmania. In: The introduced northern Pacific
  110. seastar, Asterias amurensis (Lutken), in Tasmania. Australian
  111. Nature Conservation Agency, Canberra, p 53-138
  112. Grosholz ED, Ruiz GM (1995) Spread and potential impact of
  113. the recently introduced European Green crab, Carcinus
  114. maenas, in central California. Mar Biol 122:239-247
  115. Grosholz ED, Ruiz GM, Dean CA, Shirley KA, Maron JL, Connors
  116. PG (2000) The impacts of a nonindigenous marine
  117. predator in a California Bay. Ecology 81:1206-1224
  118. Hall SJ, Raffaelli D, Turrell WR (1990) Predator-caging experiments
  119. in marine systems, a re-examination of their value.
  120. Am Nat 136:657-672
  121. Hatanaka M, Kosaka M (1959) Biological studies on the population
  122. of the starfish, Asterias amurensis, in Sendai Bay.
  123. Tohoku J Agric Res 9:159-178
  124. Hulberg LW, Oliver JS (1980) Caging manipulations in
  125. marine soft-sediment bottom communities, importance of
  126. animal interactions or sedimentary habitat modifications.
  127. Can J Fish Aquat Sci 37:1130-1139
  128. Kim YS (1969) Selective feeding on the several bivalve
  129. molluscs by starfish, Asterias amurensis. Bull Fac Fish
  130. Hokkaido Univ 19:244-249
  131. Lafferty KD, Kuris AM (1994) Potential uses for biological
  132. control of alien marine species. In: Cottingham D (ed)
  133. Nonindiginous estuarine marine organisms (NEMO). Proc
  134. Conf and Workshop, Seattle. NOAA, US Department of
  135. Commerce, p 97-102
  136. Lambert WJ, Levin D, Berman J (1992) Changes in the structure
  137. of a New England (USA) kelp bed: the effects of an
  138. introduced species. Mar Ecol Prog Ser 88:303-307
  139. Lockhart SJ (1995) Feeding biology of the introduced sea star,
  140. Asterias amurensis (Lutken) in Tasmania (Echinodermata
  141. Asteroidea). Honours Thesis, University of Tasmania, Hobart
  142. Lockhart SJ, Ritz DA (1998) Feeding rates of the introduced
  143. sea star, Asterias amurensis (Lutken), in Tasmania. In:
  144. Mooi R, Telford M (eds) Proc 9th Int Echinoderm Conf,
  145. San Francisco. Balkema, Rotterdam, p 267-272
  146. Lockhart SJ, Ritz DA (2001) Preliminary observations of the
  147. feeding periodicity and selectivity of the introduced
  148. seastar, Asterias amurensis (Lutken), in Tasmania, Australia.
  149. Pap Proc R Soc Tas 135:25-33
  150. Lodge DM (1993) Biological invasions: lessons for ecology.
  151. Trends Ecol Evol 8:133-137
  152. Menge BA (1972) Foraging strategy of a starfish in relation to
  153. actual prey availability and environmental predictability.
  154. Ecol Monogr 42:25-50
  155. Menge BA (1982) Effects of feeding on the environment:
  156. Asteroidea. In: Jangoux M, Lawrence JM (eds) Echinoderm
  157. nutrition. Balkema, Rotterdam, p 521-551
  158. Mills EL, Leach JH, Carlton JT (1993) Exotic species in the
  159. Great Lakes: a history of biotic crises and anthropogenic
  160. introductions. J Gt Lakes Res 19:1-54
  161. Morrice MG (1995) The distribution and ecology of the introduced
  162. northern Pacific seastar, Asterias amurensis
  163. (Lutken), in Tasmania. In: The introduced northern Pacific
  164. seastar, Asterias amurensis, in Tasmania. Australian
  165. Nature Conservation Agency, Canberra, p 1-50
  166. Newman JA, Bergelson J and Grafen AG (1997) Blocking factors
  167. and hypothesis tests in ecology: is your statistics text
  168. wrong? Ecology 78:1312-1320
  169. Nichols FH, Thompson JK, Schemel LE (1990) Remarkable
  170. invasion of San Francisco Bay (California, USA) by the
  171. Asian clam Potamocorbula amurensis. II. Displacement of
  172. a former community. Mar Ecol Prog Ser 66:95-101
  173. Nojima S (1989) Ecological studies on the sea star, Astropecten
  174. latespinosus Meissner. VI. Seasonal changes in
  175. stomach contents, preference of food items, size preference
  176. and two kinds of switching in feeding habits. Publ
  177. Amakusa Mar Biol Lab Kyushu Univ 10:17-40
  178. Nojima S, Soliman FA, Kondo Y, Kuwano Y, Nasu K, Kitajima
  179. C (1986) Some notes of the outbreak of the sea star Asterias
  180. amurensis versiclor Sladen, in the Ariake Sea, western
  181. Kyshu. Publ Amakusa Mar Biol Lab Kyushu Univ 8:89-112
  182. Olafsson EB, Peterson CH, Ambrose WG Jr (1994) Does
  183. recruitment limitation structure populations and communities
  184. of macroinvertebrates in marine soft sediments: the
  185. relative significance of pre and post settlement processes.
  186. Oceanogr Mar Biol Annu Rev 32:65-109
  187. Paine RT (1966) Food web complexity and species diversity.
  188. Am Nat 100:850-859
  189. Paine RT (1974) Intertidal community structure: experimental
  190. studies on the relationship between a dominant competitor
  191. and its principal predator. Oecologia 15:93-120
  192. Peterson CH (1980) Predation, competitive exclusion and
  193. diversity in the soft-sediment benthic communities of estuaries
  194. and lagoons. In: Livingston RJ (ed) Predation, competitive
  195. exclusion and diversity in the soft-sediment benthic
  196. communities of estuaries and lagoons. Plenum Press,
  197. New York, p 233-264
  198. Peterson CH, Black R (1993) Experimental tests of the advantages
  199. and disadvantages of high density for two coexisting
  200. cockles in a Southern Ocean lagoon. J Anim Ecol 62:
  201. 614-633
  202. Posey MH, Wigand C, Stevenson JC (1993) Effects of an introduced
  203. aquatic plant, Hydrilla verticillata, on benthic communities
  204. in the upper Chesapeake Bay. Estuar Coast Shelf
  205. Sci 37:539-555
  206. Race MS (1982) Competitive displacement and predation
  207. between introduced and native mud snails. Oecologia 54:
  208. 337-347
  209. Robles C, Sherwood-Stephens R, Alvarado M (1995) Responses
  210. of a key intertidal predator to varying recruitment
  211. of its prey. Ecology 76:565-579
  212. Ross DJ (2001) Impact of the nothern Pacific seastar Asterias
  213. amurensis on soft sediment assemblages, including
  214. commercial species, in southeast Tasmania. Department
  215. of Zoology, PhD dissertation, University of Tasmania,
  216. Hobart
  217. Ross DJ, Johnson CR, Hewitt CL (in press) Assessing the ecological
  218. impacts of an introduced seastar: the importance of
  219. multiple methods. Biol Inv
  220. Ruiz GM, Rawlings TK, Dobbs FC, Drake LA, Mullady T, Huq
  221. A, Colwell RR (2000) Global spread of microorganisms by
  222. ships. Nature 408:49-50
  223. Sloan NA (1980) Aspects of the feeding biology of asteroids.
  224. Oceanogr Mar Biol Annu Rev 18:57-124
  225. Thrush SF (1986) Community structure on the floor of sealough:
  226. are large epibenthic predators important? J Exp
  227. Mar Biol Ecol 104:171-183
  228. Thrush SF (1999) Complex role of predators in structuring
  229. soft-sediment macrobenthic communities: implications of
  230. changes in spatial scale for experimental studies. Aust
  231. J Ecol 24:344-354
  232. Thrush SF, Hewitt JE, Pridmore RD, Cummings VJ (1996)
  233. Adult/juvenile interactions of infaunal bivalves: contrasting
  234. outcomes in different habitats. Mar Ecol Prog Ser 132:
  235. 83-92
  236. Todd CD, Keough MJ (1994) Larval settlement in hard substratum
  237. epifaunal assemblages: a manipulative field study
  238. of the effects of substratum filming and the presence of
  239. incumbents. J Exp Mar Biol Ecol 181:159-187
  240. Vanderplog HA, Scavia D (1979) Two electivity indices for
  241. feeding with special reference to zooplankton grazing.
  242. J Fish Res Board Can 36:362-365
  243. Virnstein RW (1978) Predator caging experiments in soft sediments:
  244. caution advised. In: Wiley ML (ed) Estuarine interactions.
  245. Academic Press, New York, p 261-273
  246. Vitousek PM (1994) Beyond global warming-ecology and
  247. global change. Ecology 75:1861-1876
  248. Willan RC (1998) Superfamily Tellinoidea. In: Beesley PL,
  249. Ross GLB, Wells A (eds) Fauna of Australia, Vol 5,
  250. Mollusca: the Southern Synthesis. CSIRO Publishing,
  251. Melbourne, p 342-348" name="eprints.referencetext" />
  252. <meta content="Ross, D. Jeff and Johnson, Craig R. and Hewitt, Chad L. (2002) Impact of introduced seastars Asterias amurensis on survivorship of juvenile commercial bivalves Fulvia tenuicostata. Marine Ecology Progress Series, 241 . pp. 99-112. ISSN 0171-8630" name="eprints.citation" />
  253. <meta content="http://eprints.utas.edu.au/1192/1/2002_Ross%2C_Johnson_%26_Hewitt_MEPS.pdf" name="eprints.document_url" />
  254. <link rel="schema.DC" href="http://purl.org/DC/elements/1.0/" />
  255. <meta content="Impact of introduced seastars Asterias amurensis
  256. on survivorship of juvenile commercial bivalves
  257. Fulvia tenuicostata" name="DC.title" />
  258. <meta content="Ross, D. Jeff" name="DC.creator" />
  259. <meta content="Johnson, Craig R." name="DC.creator" />
  260. <meta content="Hewitt, Chad L." name="DC.creator" />
  261. <meta content="270702 Marine and Estuarine Ecology (incl. Marine Ichthyology)" name="DC.subject" />
  262. <meta content="The introduction and establishment of the predatory seastar Asterias amurensis in
  263. southern Australia is considered a major threat to benthic marine communities and commercial
  264. bivalves. The impact of A. amurensis on a soft sediment assemblage in SE Tasmania was quantified,
  265. with particular attention to effects of seastar predation on the survivorship of recently settled juveniles
  266. of the commercial bivalve Fulvia tenuicostata. In a manipulative experiment, densities of F.
  267. tenuicostata juveniles were reduced by ca. 15 fold (from 580 to 35 m-2) in the presence of seastars at
  268. background densities relative to the treatment without seastars. In a feeding survey, A. amurensis
  269. exhibited preference for F. tenuicostata following settlement of the bivalve over the period from
  270. December 1997 to January 1998, which comprised 80 and 50% of the seastar's stomach items in February
  271. 1998 and April 1998, respectively. However, A. amurensis preferred a variety of other prey taxa
  272. when the abundance of F. tenuicostata was low, particularly other bivalves, gastropods and the echinoid
  273. Echinocardium cordatum. This indicates that the seastar may potentially affect the abundance
  274. of other prey taxa. The results provide further support to the hypothesis that predation by A. amurensis
  275. is largely responsible for the recent decline and subsequent rarity of large bivalves in its current
  276. distribution in Tasmania. The potential of seastar predation to have wider ecosystem level effects
  277. than the short-term direct effects reported here is a major concern." name="DC.description" />
  278. <meta content="2002-10" name="DC.date" />
  279. <meta content="Article" name="DC.type" />
  280. <meta content="PeerReviewed" name="DC.type" />
  281. <meta content="application/pdf" name="DC.format" />
  282. <meta content="http://eprints.utas.edu.au/1192/1/2002_Ross%2C_Johnson_%26_Hewitt_MEPS.pdf" name="DC.identifier" />
  283. <meta content="http://www.int-res.com/abstracts/meps/v241/p99-112/" name="DC.relation" />
  284. <meta content="Ross, D. Jeff and Johnson, Craig R. and Hewitt, Chad L. (2002) Impact of introduced seastars Asterias amurensis on survivorship of juvenile commercial bivalves Fulvia tenuicostata. Marine Ecology Progress Series, 241 . pp. 99-112. ISSN 0171-8630" name="DC.identifier" />
  285. <meta content="http://eprints.utas.edu.au/1192/" name="DC.relation" />
  286. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1192/BibTeX/epprod-eprint-1192.bib" title="BibTeX" type="text/plain" />
  287. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1192/ContextObject/epprod-eprint-1192.xml" title="OpenURL ContextObject" type="text/xml" />
  288. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1192/ContextObject::Dissertation/epprod-eprint-1192.xml" title="OpenURL Dissertation" type="text/xml" />
  289. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1192/ContextObject::Journal/epprod-eprint-1192.xml" title="OpenURL Journal" type="text/xml" />
  290. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1192/DC/epprod-eprint-1192.txt" title="Dublin Core" type="text/plain" />
  291. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1192/DIDL/epprod-eprint-1192.xml" title="DIDL" type="text/xml" />
  292. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1192/EndNote/epprod-eprint-1192.enw" title="EndNote" type="text/plain" />
  293. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1192/HTML/epprod-eprint-1192.html" title="HTML Citation" type="text/html; charset=utf-8" />
  294. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1192/METS/epprod-eprint-1192.xml" title="METS" type="text/xml" />
  295. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1192/MODS/epprod-eprint-1192.xml" title="MODS" type="text/xml" />
  296. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1192/RIS/epprod-eprint-1192.ris" title="Reference Manager" type="text/plain" />
  297. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1192/Refer/epprod-eprint-1192.refer" title="Refer" type="text/plain" />
  298. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1192/Simple/epprod-eprint-1192text" title="Simple Metadata" type="text/plain" />
  299. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1192/Text/epprod-eprint-1192.txt" title="ASCII Citation" type="text/plain; charset=utf-8" />
  300. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1192/XML/epprod-eprint-1192.xml" title="EP3 XML" type="text/xml" />
  301.  
  302. </head>
  303. <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')">
  304. <div class="ep_noprint"><noscript><style type="text/css">@import url(http://eprints.utas.edu.au/style/nojs.css);</style></noscript></div>
  305.  
  306.  
  307.  
  308.  
  309. <table width="795" border="0" cellspacing="0" cellpadding="0">
  310. <tr>
  311. <td><script language="JavaScript1.2">mmLoadMenus();</script>
  312. <table border="0" cellpadding="0" cellspacing="0" width="795">
  313. <!-- fwtable fwsrc="eprints_banner_final2.png" fwbase="ePrints_banner.gif" fwstyle="Dreamweaver" fwdocid = "1249563342" fwnested="0" -->
  314. <tr>
  315. <td><img src="/images/eprints/spacer.gif" width="32" height="1" border="0" alt="" /></td>
  316. <td><img src="/images/eprints/spacer.gif" width="104" height="1" border="0" alt="" /></td>
  317. <td><img src="/images/eprints/spacer.gif" width="44" height="1" border="0" alt="" /></td>
  318. <td><img src="/images/eprints/spacer.gif" width="105" height="1" border="0" alt="" /></td>
  319. <td><img src="/images/eprints/spacer.gif" width="41" height="1" border="0" alt="" /></td>
  320. <td><img src="/images/eprints/spacer.gif" width="16" height="1" border="0" alt="" /></td>
  321. <td><img src="/images/eprints/spacer.gif" width="68" height="1" border="0" alt="" /></td>
  322. <td><img src="/images/eprints/spacer.gif" width="68" height="1" border="0" alt="" /></td>
  323. <td><img src="/images/eprints/spacer.gif" width="68" height="1" border="0" alt="" /></td>
  324. <td><img src="/images/eprints/spacer.gif" width="82" height="1" border="0" alt="" /></td>
  325. <td><img src="/images/eprints/spacer.gif" width="69" height="1" border="0" alt="" /></td>
  326. <td><img src="/images/eprints/spacer.gif" width="98" height="1" border="0" alt="" /></td>
  327. <td><img src="/images/eprints/spacer.gif" width="1" height="1" border="0" alt="" /></td>
  328. </tr>
  329. <tr>
  330. <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>
  331. <td><img src="/images/eprints/spacer.gif" width="1" height="10" border="0" alt="" /></td>
  332. </tr>
  333. <tr>
  334. <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>
  335. <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>
  336. <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>
  337. <td><img src="/images/eprints/spacer.gif" width="1" height="41" border="0" alt="" /></td>
  338. </tr>
  339. <tr>
  340. <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>
  341. <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>
  342. <td><img src="/images/eprints/spacer.gif" width="1" height="31" border="0" alt="" /></td>
  343. </tr>
  344. <tr>
  345. <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>
  346. <td><img src="/images/eprints/spacer.gif" width="1" height="6" border="0" alt="" /></td>
  347. </tr>
  348. <tr>
  349. <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>
  350. <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>
  351. <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>
  352. <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>
  353. <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>
  354. <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>
  355. <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>
  356. <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>
  357. <td><img src="/images/eprints/spacer.gif" width="1" height="1" border="0" alt="" /></td>
  358. </tr>
  359. <tr>
  360. <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>
  361. <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>
  362. <td><img src="/images/eprints/spacer.gif" width="1" height="24" border="0" alt="" /></td>
  363. </tr>
  364. <tr>
  365. <td><img name="ePrints_banner_r7_c2" src="/images/eprints/ePrints_banner_r7_c2.gif" width="104" height="15" border="0" alt="" /></td>
  366. <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>
  367. <td><img src="/images/eprints/spacer.gif" width="1" height="15" border="0" alt="" /></td>
  368. </tr>
  369. </table></td>
  370. </tr>
  371. <tr><td><table width="100%" style="font-size: 90%; border: solid 1px #ccc; padding: 3px"><tr>
  372. <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>
  373. <td align="right" style="white-space: nowrap">
  374. <form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/search" style="display:inline">
  375. <input class="ep_tm_searchbarbox" size="20" type="text" name="q" />
  376. <input class="ep_tm_searchbarbutton" value="Search" type="submit" name="_action_search" />
  377. <input type="hidden" name="_order" value="bytitle" />
  378. <input type="hidden" name="basic_srchtype" value="ALL" />
  379. <input type="hidden" name="_satisfyall" value="ALL" />
  380. </form>
  381. </td>
  382. </tr></table></td></tr>
  383. <tr>
  384. <td class="toplinks"><!-- InstanceBeginEditable name="content" -->
  385.  
  386.  
  387. <div align="center">
  388. <table width="720" class="ep_tm_main"><tr><td align="left">
  389. <h1 class="ep_tm_pagetitle">Impact of introduced seastars Asterias amurensis on survivorship of juvenile commercial bivalves Fulvia tenuicostata</h1>
  390. <p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Ross, D. Jeff</span> and <span class="person_name">Johnson, Craig R.</span> and <span class="person_name">Hewitt, Chad L.</span> (2002) <xhtml:em>Impact of introduced seastars Asterias amurensis on survivorship of juvenile commercial bivalves Fulvia tenuicostata.</xhtml:em> Marine Ecology Progress Series, 241 . pp. 99-112. ISSN 0171-8630</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_1536' );" onmouseout="EPJS_HidePreview( event, 'doc_preview_1536' );" href="http://eprints.utas.edu.au/1192/1/2002_Ross%2C_Johnson_%26_Hewitt_MEPS.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_1536"><table><tr><td><img alt="" src="http://eprints.utas.edu.au/1192/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/1192/1/2002_Ross%2C_Johnson_%26_Hewitt_MEPS.pdf"><span class="ep_document_citation">PDF</span></a> - Requires a PDF viewer<br />377Kb</td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://www.int-res.com/abstracts/meps/v241/p99-112/">http://www.int-res.com/abstracts/meps/v241/p99-112/</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">The introduction and establishment of the predatory seastar Asterias amurensis in&#13;
  391. southern Australia is considered a major threat to benthic marine communities and commercial&#13;
  392. bivalves. The impact of A. amurensis on a soft sediment assemblage in SE Tasmania was quantified,&#13;
  393. with particular attention to effects of seastar predation on the survivorship of recently settled juveniles&#13;
  394. of the commercial bivalve Fulvia tenuicostata. In a manipulative experiment, densities of F.&#13;
  395. tenuicostata juveniles were reduced by ca. 15 fold (from 580 to 35 m-2) in the presence of seastars at&#13;
  396. background densities relative to the treatment without seastars. In a feeding survey, A. amurensis&#13;
  397. exhibited preference for F. tenuicostata following settlement of the bivalve over the period from&#13;
  398. December 1997 to January 1998, which comprised 80 and 50% of the seastar's stomach items in February&#13;
  399. 1998 and April 1998, respectively. However, A. amurensis preferred a variety of other prey taxa&#13;
  400. when the abundance of F. tenuicostata was low, particularly other bivalves, gastropods and the echinoid&#13;
  401. Echinocardium cordatum. This indicates that the seastar may potentially affect the abundance&#13;
  402. of other prey taxa. The results provide further support to the hypothesis that predation by A. amurensis&#13;
  403. is largely responsible for the recent decline and subsequent rarity of large bivalves in its current&#13;
  404. distribution in Tasmania. The potential of seastar predation to have wider ecosystem level effects&#13;
  405. than the short-term direct effects reported here is a major concern.</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">Article</td></tr><tr><th valign="top" class="ep_row">Keywords:</th><td valign="top" class="ep_row">Seastar; Introduced species; Predation; Impacts; Bivalves; Soft sediment; Asterias amurensis</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">1192</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">20 Jun 2007</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">04 Feb 2008 16:53</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=1192;">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=1192">item control page</a></p>
  406. </td></tr></table>
  407. </div>
  408.  
  409.  
  410.  
  411. <!-- InstanceEndEditable --></td>
  412. </tr>
  413. <tr>
  414. <td><!-- #BeginLibraryItem "/Library/footer_eprints.lbi" -->
  415. <table width="795" border="0" align="left" cellpadding="0" class="footer">
  416. <tr valign="top">
  417. <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>
  418. </tr>
  419. <tr><td colspan="2"><p><img src="/images/eprints/footerline.gif" width="100%" height="4" /></p></td></tr>
  420. <tr valign="top">
  421. <td width="68%" class="footer">Authorised by the University Librarian<br />
  422. © University of Tasmania ABN 30 764 374 782<br />
  423. <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>
  424. <td width="32%"><div align="right">
  425. <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>
  426. <p align="right" class="NoPrint"><a href="http://www.utas.edu.au/"><br />
  427. </a></p>
  428. </div></td>
  429. </tr>
  430. <tr valign="top">
  431. <td><p>  </p></td>
  432. <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>
  433. </tr>
  434. </table>
  435. <!-- #EndLibraryItem -->
  436. <div align="center"></div></td>
  437. </tr>
  438. </table>
  439.  
  440. </body>
  441. </html>