<!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 - The effect of predator/prey density and water dynamics on feed intake and growth in spiny lobster larvae (Jasus edwardsii)</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="Smith, Greg G." name="eprints.creators_name" />
<meta content="Lyall, Luisa" name="eprints.creators_name" />
<meta content="Ritar, Arthur J." name="eprints.creators_name" />
<meta content="" name="eprints.creators_id" />
<meta content="" name="eprints.creators_id" />
<meta content="Arthur.Ritar@utas.edu.au" name="eprints.creators_id" />
<meta content="article" name="eprints.type" />
<meta content="2007-02-28" name="eprints.datestamp" />
<meta content="2008-01-08 15:30:00" name="eprints.lastmod" />
<meta content="show" name="eprints.metadata_visibility" />
<meta content="The effect of predator/prey density and water dynamics on feed intake and growth in spiny lobster larvae (Jasus edwardsii)" name="eprints.title" />
<meta content="pub" name="eprints.ispublished" />
<meta content="300799" name="eprints.subjects" />
<meta content="300703" name="eprints.subjects" />
<meta content="restricted" name="eprints.full_text_status" />
<meta content="Jasus edwardsii, water turbulence, density, flow rate, feed intake, intermoult duration" name="eprints.keywords" />
<meta content="The definitive version is available at http://www.elsevier.com/locate/aquaculture " name="eprints.note" />
<meta content="Consumption of Artemia by phyllosoma of the spiny lobster Jasus edwardsii was examined under static and turbulent conditions. Phyllosoma larvae were stocked at two densities (2 or 4 phyllosoma container -1; 2P or 4P) and fed juvenile Artemia (1.6mm total length) at two feed rates (1.5 or 0.75 Artemia ml-1; 1.5A or 0.75A) in 50 ml of seawater. This provided a combination of 4 treatments (2P/1.5A, 2P/0.75A, 4P/1.5A, 4P/0.75A). Daily intake of Artemia by phyllosoma was monitored and assessed relative to moult size and intermoult duration at differing predator-prey densities. Phyllosoma numbers were held constant; in the event of mortality, animals were replaced with others from the same cohort cultured under similar conditions. Phyllosoma endogenous reserves at hatch combined with the lowest ration of 0.75 A was sufficient to ensure normal growth and intermoult duration until Stage II. When phyllosoma were fed for an extended period (several moults), low ration and high phyllosoma density resulted in smaller size and extended intermoult duration. Fluctuations in the feeding pattern of phyllosoma were evident between treatments during the experiment. Phyllosoma with access to more Artemia consumed more, and consumption was reduced prior to a moult, even during early stages of development. The second phase of the study examined the intake of 1.7 mm juvenile Artemia by phyllosoma and their response to flow-induced turbulence with a combination of two water exchange rates (2.5 or 5 times h-1) and two inlet positions (2 cm above the water surface or 0.5 cm above the culture vessel bottom and parallel to it). Larvae exposed to slow flow were larger and had a shorter intermoult duration associated with an increased ability to capture and consume more Artemia. Similar numbers of Artemia were consumed during the intermoult in high flow treatments compared to the low flow, albeit over a longer duration. Phyllosoma development between moults required less Artemia to be consumed under static conditions. " name="eprints.abstract" />
<meta content="2007-01" name="eprints.date" />
<meta content="published" name="eprints.date_type" />
<meta content="Aquaculture" name="eprints.publication" />
<meta content="263" name="eprints.volume" />
<meta content="1-4" name="eprints.number" />
<meta content="122-129" name="eprints.pagerange" />
<meta content="10.1016/j.aquaculture.2006.12.010" name="eprints.id_number" />
<meta content="UNSPECIFIED" name="eprints.thesis_type" />
<meta content="TRUE" name="eprints.refereed" />
<meta content="0044-8486" name="eprints.issn" />
<meta content="http://dx.doi.org/10.1016/j.aquaculture.2006.12.010" name="eprints.official_url" />
<meta content="Abrunhosa, F.A., Kittaka, J. 1997. Effect of starvation on the first larvae of Homarus americanus (Decapoda, Nephropidae) and phyllosomas of Jasus verreauxi and J. edwardsii (Decapoda, Palinuridae). Bulletin of Marine Science 6, 73-80.
Bourne, D.G., Young, N., Webster, N., Payne, M., Salmon, M., Demel, S., Hall, M. 2004. Microbial community dynamics in a larval aquaculture system of the tropical rock lobster, Panulirus ornatus. Aquaculture 242, 31-51.
Gulbrandsen, J. 2001. Artemia swarming - Mechanisms and suggested reasons. Journal of Plankton Research 23, 659-669.
Illingworth, J., Tong, L.J., Moss, G.A., Pickering, T.D. 1997. Upwelling tank for culturing rock lobster (Jasus edwardsii) phyllosomas. Marine and Freshwater Research 48, 911-914.
Inoue, M. 1965. On the relation of amount of food taken to the density and size of food and water temperature in rearing the phyllosoma of the Japanese spiny lobster, Panulirus japonicus (V. Siebold). Bulletin of the Japanese Society of Scientific Fisheries 31, 903-906.
Kittaka, J. 2000. Culture of larval spiny lobsters. In: Phillips, B.F., Kittaka, J. (Eds.), Spiny lobsters: Fisheries and culture 2nd Ed. Fishing News Books, Blackwell Science, Gray Publishing, Kent, 508-532.
Lesser, J.H.R. 1978. Phyllosoma larvae of Jasus edwardsii (Hutton) (Crustacea: Decapoda: Palinuridae) and their distribution off the east coast of the North Island, New Zealand. New Zealand Journal of Marine and Freshwater Research 12, 357-370.
Matsuda, H., Yamakawa, T. 1997. Effects of temperature on growth of the Japanese spiny lobster, Panulirus japonicus (V. Siebold) phyllosomas under laboratory conditions. Marine and Freshwater Research 48, 791-796.
Matsuda, H., Takenouchi, T., Yamakawa, T. 2003. Diel timing of molting and metamorphosis of Panulirus japonicus phyllosoma larvae under laboratory conditions. Fisheries Science 69, 124-130.
Mikami, S. and Takashima, F. 1993. Effects of starvation upon survival, growth and molting interval of the larvae of the spiny lobster Panulirus japonicus (Decapoda, Palinuridae). Crustaceana 64, 137-142.
Ritar, A.J. 2001. The experimental culture of phyllosoma larvae of the southern rock lobster (Jasus edwardsii) in a flow-through system. Aquaculture Engineering 24, 149-156.
Ritar A.J., Thomas C.W., Beech A.J. 2002. Feeding Artemia and shellfish to phyllosoma larvae of southern rock lobster (Jasus edwardsii) Aquaculture 212, 179-190.
Ritar, A.J., Smith, G.G., Thomas, C.W. 2006. The use of seawater ozonation to improve the survival of southern rock lobster, Jasus edwardsii, phyllosoma larvae in culture from egg to juvenile. Aquaculture 261, 1014-1025.
Smith, G.G., Thompson, P.A., Ritar, A.J., Dunstan, G.A. 2003. Effects of starvation and feeding on the fatty acid profiles of Stage I phyllosoma of the spiny lobster, Jasus edwardsii. Aquaculture Research 34, 419-426.
Smith, G., Brown, M., Ritar, A. 2004. Feeding juvenile Artemia enriched with ascorbic acid improves larval survival in the spiny lobster Jasus edwardsii. Aquaculture Nutrition 10, 105-112.
Smith, G.G., Ritar, A.J. 2006. The influence of animal density and water turbulence on growth and survival of cultured spiny lobster (Jasus edwardsii) larvae. Aquaculture 258, 404-411.
Sokal, R.R., Rohlf, J.F. 1995. Biometry: The principles and practice of statistics in biological research. Freeman. New York, 468p.
Thessalou-Legaki, M., Peppa, A., Zacharaki, M. 1999. Facultative lecithotrophy during larval development of the burrowing shrimp Callianassa tyrrhena (Decapoda: Callianassidae). Marine Biology 133, 635-642.
Tong, L.J., Moss, G.A., Paewai, M.M., Pickering, T.D. 1997. Effect of brine-shrimp numbers on growth and survival of early-stage phyllosoma larvae of the rock lobster Jasus edwardsii. Marine and Freshwater Research 48, 935-940.
Tong, L.J., Moss, G.A., Paewai, M.M., Pickering, T.D. 2000. Effect of temperature and feeding rate on the growth and survival of early and mid-stage phyllosomas of the spiny lobster Jasus edwardsii. Marine and Freshwater Research 51, 235-241.
Vijayakumaran, M., Radhakrishnan, E.V. 1986. Effects of food density on feeding and moulting of phyllosoma larvae of the spiny lobster Panulirus homarus (Linnaeus). In: Proceedings of the 4th Symposium of Coastal Aquaculture. Marine Biological Association of India. 1281-1285.
" name="eprints.referencetext" />
<meta content="Smith, Greg G. and Lyall, Luisa and Ritar, Arthur J. (2007) The effect of predator/prey density and water dynamics on feed intake and growth in spiny lobster larvae (Jasus edwardsii). Aquaculture, 263 (1-4). pp. 122-129. ISSN 0044-8486" name="eprints.citation" />
<meta content="http://eprints.utas.edu.au/795/1/Predator_prey_density_Aquaculture_07_REVISED_for_E-prints.pdf" name="eprints.document_url" />
<meta content="http://eprints.utas.edu.au/795/2/smith-ritar-aquaculture.pdf" name="eprints.document_url" />
<link rel="schema.DC" href="http://purl.org/DC/elements/1.0/" />
<meta content="The effect of predator/prey density and water dynamics on feed intake and growth in spiny lobster larvae (Jasus edwardsii)" name="DC.title" />
<meta content="Smith, Greg G." name="DC.creator" />
<meta content="Lyall, Luisa" name="DC.creator" />
<meta content="Ritar, Arthur J." name="DC.creator" />
<meta content="300799 Fisheries Sciences not elsewhere classified" name="DC.subject" />
<meta content="300703 Aquaculture" name="DC.subject" />
<meta content="Consumption of Artemia by phyllosoma of the spiny lobster Jasus edwardsii was examined under static and turbulent conditions. Phyllosoma larvae were stocked at two densities (2 or 4 phyllosoma container -1; 2P or 4P) and fed juvenile Artemia (1.6mm total length) at two feed rates (1.5 or 0.75 Artemia ml-1; 1.5A or 0.75A) in 50 ml of seawater. This provided a combination of 4 treatments (2P/1.5A, 2P/0.75A, 4P/1.5A, 4P/0.75A). Daily intake of Artemia by phyllosoma was monitored and assessed relative to moult size and intermoult duration at differing predator-prey densities. Phyllosoma numbers were held constant; in the event of mortality, animals were replaced with others from the same cohort cultured under similar conditions. Phyllosoma endogenous reserves at hatch combined with the lowest ration of 0.75 A was sufficient to ensure normal growth and intermoult duration until Stage II. When phyllosoma were fed for an extended period (several moults), low ration and high phyllosoma density resulted in smaller size and extended intermoult duration. Fluctuations in the feeding pattern of phyllosoma were evident between treatments during the experiment. Phyllosoma with access to more Artemia consumed more, and consumption was reduced prior to a moult, even during early stages of development. The second phase of the study examined the intake of 1.7 mm juvenile Artemia by phyllosoma and their response to flow-induced turbulence with a combination of two water exchange rates (2.5 or 5 times h-1) and two inlet positions (2 cm above the water surface or 0.5 cm above the culture vessel bottom and parallel to it). Larvae exposed to slow flow were larger and had a shorter intermoult duration associated with an increased ability to capture and consume more Artemia. Similar numbers of Artemia were consumed during the intermoult in high flow treatments compared to the low flow, albeit over a longer duration. Phyllosoma development between moults required less Artemia to be consumed under static conditions. " name="DC.description" />
<meta content="2007-01" name="DC.date" />
<meta content="Article" name="DC.type" />
<meta content="PeerReviewed" name="DC.type" />
<meta content="application/pdf" name="DC.format" />
<meta content="http://eprints.utas.edu.au/795/1/Predator_prey_density_Aquaculture_07_REVISED_for_E-prints.pdf" name="DC.identifier" />
<meta content="application/pdf" name="DC.format" />
<meta content="http://eprints.utas.edu.au/795/2/smith-ritar-aquaculture.pdf" name="DC.identifier" />
<meta content="http://dx.doi.org/10.1016/j.aquaculture.2006.12.010" name="DC.relation" />
<meta content="Smith, Greg G. and Lyall, Luisa and Ritar, Arthur J. (2007) The effect of predator/prey density and water dynamics on feed intake and growth in spiny lobster larvae (Jasus edwardsii). Aquaculture, 263 (1-4). pp. 122-129. ISSN 0044-8486" name="DC.identifier" />
<meta content="http://eprints.utas.edu.au/795/" name="DC.relation" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/795/BibTeX/epprod-eprint-795.bib" title="BibTeX" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/795/ContextObject/epprod-eprint-795.xml" title="OpenURL ContextObject" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/795/ContextObject::Dissertation/epprod-eprint-795.xml" title="OpenURL Dissertation" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/795/ContextObject::Journal/epprod-eprint-795.xml" title="OpenURL Journal" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/795/DC/epprod-eprint-795.txt" title="Dublin Core" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/795/DIDL/epprod-eprint-795.xml" title="DIDL" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/795/EndNote/epprod-eprint-795.enw" title="EndNote" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/795/HTML/epprod-eprint-795.html" title="HTML Citation" type="text/html; charset=utf-8" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/795/METS/epprod-eprint-795.xml" title="METS" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/795/MODS/epprod-eprint-795.xml" title="MODS" type="text/xml" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/795/RIS/epprod-eprint-795.ris" title="Reference Manager" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/795/Refer/epprod-eprint-795.refer" title="Refer" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/795/Simple/epprod-eprint-795text" title="Simple Metadata" type="text/plain" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/795/Text/epprod-eprint-795.txt" title="ASCII Citation" type="text/plain; charset=utf-8" />
<link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/795/XML/epprod-eprint-795.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">The effect of predator/prey density and water dynamics on feed intake and growth in spiny lobster larvae (Jasus edwardsii)</h1>
<p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Smith, Greg G.</span> and <span class="person_name">Lyall, Luisa</span> and <span class="person_name">Ritar, Arthur J.</span> (2007) <xhtml:em>The effect of predator/prey density and water dynamics on feed intake and growth in spiny lobster larvae (Jasus edwardsii).</xhtml:em> Aquaculture, 263 (1-4). pp. 122-129. ISSN 0044-8486</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_799' );" href="http://eprints.utas.edu.au/795/1/Predator_prey_density_Aquaculture_07_REVISED_for_E-prints.pdf" onmouseout="EPJS_HidePreview( event, 'doc_preview_799' );"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" class="ep_doc_icon" border="0" /></a><div class="ep_preview" id="doc_preview_799"><table><tr><td><img alt="" src="http://eprints.utas.edu.au/795/thumbnails/1/preview.png" class="ep_preview_image" border="0" /><div class="ep_preview_title">Preview</div></td></tr></table></div></td><td valign="top"><a href="http://eprints.utas.edu.au/795/1/Predator_prey_density_Aquaculture_07_REVISED_for_E-prints.pdf"><span class="ep_document_citation">PDF (Author Version)</span></a> - Requires a PDF viewer<br />149Kb</td></tr><tr><td valign="top" style="text-align:center"><a href="http://eprints.utas.edu.au/795/2/smith-ritar-aquaculture.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" class="ep_doc_icon" border="0" /></a></td><td valign="top"><a href="http://eprints.utas.edu.au/795/2/smith-ritar-aquaculture.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />354Kb</td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://dx.doi.org/10.1016/j.aquaculture.2006.12.010">http://dx.doi.org/10.1016/j.aquaculture.2006.12.010</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">Consumption of Artemia by phyllosoma of the spiny lobster Jasus edwardsii was examined under static and turbulent conditions. Phyllosoma larvae were stocked at two densities (2 or 4 phyllosoma container -1; 2P or 4P) and fed juvenile Artemia (1.6mm total length) at two feed rates (1.5 or 0.75 Artemia ml-1; 1.5A or 0.75A) in 50 ml of seawater. This provided a combination of 4 treatments (2P/1.5A, 2P/0.75A, 4P/1.5A, 4P/0.75A). Daily intake of Artemia by phyllosoma was monitored and assessed relative to moult size and intermoult duration at differing predator-prey densities. Phyllosoma numbers were held constant; in the event of mortality, animals were replaced with others from the same cohort cultured under similar conditions. Phyllosoma endogenous reserves at hatch combined with the lowest ration of 0.75 A was sufficient to ensure normal growth and intermoult duration until Stage II. When phyllosoma were fed for an extended period (several moults), low ration and high phyllosoma density resulted in smaller size and extended intermoult duration. Fluctuations in the feeding pattern of phyllosoma were evident between treatments during the experiment. Phyllosoma with access to more Artemia consumed more, and consumption was reduced prior to a moult, even during early stages of development. The second phase of the study examined the intake of 1.7 mm juvenile Artemia by phyllosoma and their response to flow-induced turbulence with a combination of two water exchange rates (2.5 or 5 times h-1) and two inlet positions (2 cm above the water surface or 0.5 cm above the culture vessel bottom and parallel to it). Larvae exposed to slow flow were larger and had a shorter intermoult duration associated with an increased ability to capture and consume more Artemia. Similar numbers of Artemia were consumed during the intermoult in high flow treatments compared to the low flow, albeit over a longer duration. Phyllosoma development between moults required less Artemia to be consumed under static conditions. </p></div><table style="margin-bottom: 1em" cellpadding="3" class="not_ep_block" border="0"><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">Additional Information:</th><td valign="top" class="ep_row">The definitive version is available at http://www.elsevier.com/locate/aquaculture </td></tr><tr><th valign="top" class="ep_row">Keywords:</th><td valign="top" class="ep_row">Jasus edwardsii, water turbulence, density, flow rate, feed intake, intermoult duration</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/300799.html">300000 Agricultural, Veterinary and Environmental Sciences > 300700 Fisheries Sciences > 300799 Fisheries Sciences not elsewhere classified</a><br /><a href="http://eprints.utas.edu.au/view/subjects/300703.html">300000 Agricultural, Veterinary and Environmental Sciences > 300700 Fisheries Sciences > 300703 Aquaculture</a></td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">795</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">Dr Arthur J Ritar</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">28 Feb 2007</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">09 Jan 2008 02:30</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=795;">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&eprintid=795">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 & 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>
