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<title>UTas ePrints - Mouthpart and foregut ontogeny in phyllosoma larvae of the spiny lobster Jasus edwardsii (Decapoda; Palinuridae)</title>
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<meta content="The mouthparts and foregut structure of 10 stages of spiny lobster (Jasus edwardsii) phyllosoma were described using scanning electron microscopy and resin histology to investigate developmental morphology and its implications for diet. Mouthpart and foregut structure indicate that J. edwardsii phyllosoma ingest soft fleshy foods such as gelatinous bodied zooplankton. Mouthpart morphology changes little during larval development, indicating that ingestive capabilities and external mastication are well developed from an early age. However, the density and complexity of setation and robustness of individual mouthparts increases with age, suggesting a greater capacity to ingest larger prey during development. The foregut consists of a single chamber with a number of well-developed grooves, ridges and setae, but lacking a gastric mill. The primary role of the foregut is mixing, sorting and filtering particles, pre-ground by the mouthparts. Phyllosoma have been divided into early (stage I-III), mid (IV-V) and late (VI-X) stages based on the level of development of the filter press and main brushes. Increasing robustness of setation and complexity of the foregut suggests that the texture of prey becomes more fibrous with larval development. The results presented here suggest that early stage phyllosoma would benefit from a diet comprising soft gelatinous items, while late stage phyllosoma are better prepared to deal with larger, fleshy prey. The changes in structural characteristics with age should also serve as a guide in the development of formulated diets. " name="eprints.abstract" />
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<meta content="Batham, E. J. (1967). The first three larval stages and feeding behaviour of phyllosoma of the New Zealand palinurid crayfish Jasus edwardsii (Hutton 1875). Transactions of the Royal Society of New Zealand 9, 53-64.
Bauer, R. T. (1989). Decapod crustacean grooming: functional morphology, adaptive value, and phylogenetic significance. In 'Crustacean Issues' Vol. 6. (Series Ed. Schram, F.R.) 'Functional Morphology of Feeding and Grooming in Crustacea' (Eds B. E. Felgenhauer, L. Watling and A. B. Thistle). pp. 49-73 (A.A. Balkema, Rotterdam)
Chittleborough, R. G. and Thomas, L. R. (1969). Larval ecology of the Western Australian marine crayfish, with notes upon other palinurid larvae from the Eastern Indian Ocean. Australian Journal of Marine and Freshwater Research 26, 177-196.
Factor, J. R. (1981). Development and metamorphosis of the digestive system of larval lobsters, Homarus americanus (Decapoda: Nephropidae). Journal of Morphology 169, 225-242.
Factor, J. R. (1989). Development of the feeding apparatus in decapod crustaceans. In 'Crustacean Issues' Vol. 6. (Series Ed. Schram, F.R.) 'Functional Morphology of Feeding and Grooming in Crustacea' (Eds B. E. Felgenhauer, L. Watling and A. B. Thistle). pp. 185-203 (A.A. Balkema, Rotterdam)
Herrnkind, W., Halusky, J. and Kanciruk, P. (1976). A further note on phyllosoma larvae associated with medusae. Bulletin of Marine Science 26, 110-112.
Hinton, D. J. and Corey, S. (1979). The mouthparts and digestive tract in the larval stages of Homarus americanus. Canadian Journal of Zoology 57, 1413-1423.
Illingworth, J., Tong, L., Moss, G.A. and Pickering, T.D. (1997). Upwelling tank for culturing rock lobster (Jasus edwardsii) phyllosomas. Marine and Freshwater Research 48, 911-914.
Jeffs, A. and Hooker, S. (2000). Economic feasibility of aquaculture of spiny lobsters Jasus edwardsii in temperate waters. Journal of the World Aquaculture Society 31, 30-41.
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Kittaka, J. (1994). Culture of phyllosomas of spiny lobster and its application to studies of larval recruitment and aquaculture. Crustaceana 66, 258-270.
Kittaka, J. (1997). Culture of larval spiny lobsters: a review of work done in northern Japan. Marine and Freshwater Research 48, 923-930.
Kittaka, J. (2000). Importance of three major factors for successful phyllosoma culture. In 'Technical Potential for Rock Lobster Propagation in Aquaculture Systems'. Rock Lobster Enhancement and Aquaculture Subprogram Publication No. 3. Proceedings of the 1999 Fisheries Research and Development Corporation Rock Lobster Propagation Workshop. (Ed. P. R. Hart and R. van Barneveld). January 29-31, 1999. pp. 37-41. (Fisheries Research and Development Corporation, Canberra.)
Kittaka, J. and Abrunhosa, F.A. (1997). Characteristics of larval palinurids (Decapoda, Crustacea) in larval culture. Hydrobiologia 358, 305-311.
Lavalli, K. L. and Factor, J. R. (1992). Functional morphology of the mouthparts of juvenile lobsters, Homarus americanus (Decapoda: Nephropidae), and comparison with the larval stages. Journal of Crustacean Biology 12, 467-510.
Lemmens, J. W. T. J. and Knott, B. (1994). Morphological changes in external and internal feeding structures during the transition phyllosoma-puerulus-juvenile in the Western rock lobster (Panulirus cygnus, Decapoda: Palinuridae). Journal of Morphology 220, 271-280.
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.
Macmillan, D. L., Sandow, S. L., Wikeley, D. M. and Frusher, S. (1997). Feeding activity and the morphology of the digestive tract in stage-I phyllosoma larvae of the rock lobster Jasus edwardsii. Marine and Freshwater Research 48, 19-26.
Maynard, D. M. and Dando, M. R. (1974). The structure of the stomatogastric neuromuscular system in Callinectes sapidus, Homarus americanus and Panulirus argus (Decapoda Crustacea). Philosophical Transactions of the Royal Society Series B. 268, 161-220.
Mikami, S., Greenwood, J. G. and Takashima, F. (1994). Functional morphology and cytology of the phyllosomal digestive system of Ibacus ciliatus and Panulirus japonicus (Decapoda, Scyllaridae and Palinuridae). Crustaceana 67, 212-225.
Mikami, S. and Takashima, F. (1993). Development of the proventriculus in larvae of the slipper lobster, Ibacus ciliatus (Decapoda: Scyllaridae). Aquaculture 116, 199-217.
Mikami, S. and Takashima, F. (1994). Functional morphology of the digestive system. In, 'Spiny Lobster Management' (Eds Phillips, B. F., Cobb, J. S. and Kittaka, J.) pp. 473-482. (Fishing New Books, Oxford.)
Mitchell, J. R. (1971). Food preferences, feeding mechanisms and related behaviour in phyllosoma larvae of the California spiny lobster, Panulirus interruptus (Randall), pp. 1-109. Masters Thesis. San Diego State College, San Diego.
Moss, G. A., Tong, L. J. and Illingworth, J. (1999). Effects of light intensity and food density on the growth and survival of early-stage phyllosoma larvae of the rock lobster Jasus edwardsii. Marine and Freshwater Research 50, 129-34.
Nishida, S., Quigley, B. D., Booth, J. D., Nemoto, T. and Kittaka, J. (1990). Comparative morphology of the mouthparts and foregut of the final-stage phyllosoma, puerulus, and postpuerulus of the rock lobster Jasus edwardsii (Decapoda: Palinuridae). Journal of Crustacean Biology 10, 293-305.
Paterson, N. F. (1968). The anatomy of the Cape rock lobster, Jasus lalandii (H. Milne-Edwards). Annals of the South African Museum 51, 1-232.
Patwardhan, S. S. (1935). On the structure and mechanism of the gastric mill in Decapoda. 4. The structure of the gastric mill in Reptantous Macrura. Proceedings of the Indian Academy of Science, B. 1, 414-422.
Phillips, B. F. and Sastry, A. N. (1980). Larval Ecology. In 'The Biology and Management of Lobsters', vol. 2 (Eds. J. S. Cobb and B. F. Phillips), pp. 11-57. (Academic Press, New York.)
Schaap, A. (1997). Tasmania looks to rock lobster culture. Austasia Aquaculture 11, 40-45.
Tong, L. J., Moss, G. A., Paewai, M. M. and Pickering, T. D. (1997). Effect of brine-shrimp numbers on growth and survival of early-stage phyllosomal larvae of the rock lobster Jasus edwardsii. Marine and Freshwater Research 48, 935-940.
Wolfe, S. H. and Felgenhauer, B. E. (1991). Mouthpart and foregut ontogeny in larval, postlarval, and juvenile spiny lobster, Panulirus argus Latreille (Decapoda, Palinuridae). Zoologica Scripta 20, 57-75." name="eprints.referencetext" />
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<meta content="The mouthparts and foregut structure of 10 stages of spiny lobster (Jasus edwardsii) phyllosoma were described using scanning electron microscopy and resin histology to investigate developmental morphology and its implications for diet. Mouthpart and foregut structure indicate that J. edwardsii phyllosoma ingest soft fleshy foods such as gelatinous bodied zooplankton. Mouthpart morphology changes little during larval development, indicating that ingestive capabilities and external mastication are well developed from an early age. However, the density and complexity of setation and robustness of individual mouthparts increases with age, suggesting a greater capacity to ingest larger prey during development. The foregut consists of a single chamber with a number of well-developed grooves, ridges and setae, but lacking a gastric mill. The primary role of the foregut is mixing, sorting and filtering particles, pre-ground by the mouthparts. Phyllosoma have been divided into early (stage I-III), mid (IV-V) and late (VI-X) stages based on the level of development of the filter press and main brushes. Increasing robustness of setation and complexity of the foregut suggests that the texture of prey becomes more fibrous with larval development. The results presented here suggest that early stage phyllosoma would benefit from a diet comprising soft gelatinous items, while late stage phyllosoma are better prepared to deal with larger, fleshy prey. The changes in structural characteristics with age should also serve as a guide in the development of formulated diets. " name="DC.description" />
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<h1 class="ep_tm_pagetitle">Mouthpart and foregut ontogeny in phyllosoma larvae of the spiny lobster Jasus edwardsii (Decapoda; Palinuridae)</h1>
<p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Johnston, Danielle J.</span> and <span class="person_name">Ritar, Arthur J.</span> (2001) <xhtml:em>Mouthpart and foregut ontogeny in phyllosoma larvae of the spiny lobster Jasus edwardsii (Decapoda; Palinuridae).</xhtml:em> Marine and Freshwater Research, 52 (8). pp. 1375-1386.</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 href="http://eprints.utas.edu.au/1575/1/ritar-johnston-MRD.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/1575/1/ritar-johnston-MRD.pdf"><span class="ep_document_citation">PDF (Author Version)</span></a> - Full text restricted - Requires a PDF viewer<br />426Kb</td></tr><tr><td valign="top" style="text-align:center"><a href="http://eprints.utas.edu.au/1575/2/ritar-johnston-MRD-pub.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/1575/2/ritar-johnston-MRD-pub.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />481Kb</td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://dx.doi.org/10.1071/MF01105">http://dx.doi.org/10.1071/MF01105</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">The mouthparts and foregut structure of 10 stages of spiny lobster (Jasus edwardsii) phyllosoma were described using scanning electron microscopy and resin histology to investigate developmental morphology and its implications for diet. Mouthpart and foregut structure indicate that J. edwardsii phyllosoma ingest soft fleshy foods such as gelatinous bodied zooplankton. Mouthpart morphology changes little during larval development, indicating that ingestive capabilities and external mastication are well developed from an early age. However, the density and complexity of setation and robustness of individual mouthparts increases with age, suggesting a greater capacity to ingest larger prey during development. The foregut consists of a single chamber with a number of well-developed grooves, ridges and setae, but lacking a gastric mill. The primary role of the foregut is mixing, sorting and filtering particles, pre-ground by the mouthparts. Phyllosoma have been divided into early (stage I-III), mid (IV-V) and late (VI-X) stages based on the level of development of the filter press and main brushes. Increasing robustness of setation and complexity of the foregut suggests that the texture of prey becomes more fibrous with larval development. The results presented here suggest that early stage phyllosoma would benefit from a diet comprising soft gelatinous items, while late stage phyllosoma are better prepared to deal with larger, fleshy prey. The changes in structural characteristics with age should also serve as a guide in the development of formulated diets. </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 online at http://www.publish.csiro.au/nid/127/issue/536.htm</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/300701.html">300000 Agricultural, Veterinary and Environmental Sciences > 300700 Fisheries Sciences > 300701 Physiology and Genetics</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">1575</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">09 Aug 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=1575;">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=1575">item control page</a></p>
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