Pathology of tail fan necrosis in the spiny lobster, Jasus edwardsii.

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dc.contributor.author Zha, Hua en
dc.contributor.author Jones, Brian en
dc.contributor.author Lewis, Gillian en
dc.contributor.author Dong, Yimin en
dc.contributor.author Jeffs, Andrew en
dc.date.accessioned 2018-10-30T21:02:39Z en
dc.date.issued 2018-05 en
dc.identifier.issn 0022-2011 en
dc.identifier.uri http://hdl.handle.net/2292/43680 en
dc.description.abstract Tail fan necrosis (TFN) is the bacterial infection of the tail fan of spiny lobsters which leads to melanosis and erosion of the tail fan tissues. The condition is commonly found among spiny lobsters in aquaculture and commercial fisheries, and greatly reduces their commercial value. This study describes the pathology of TFN by examining the tail fans (telson, uropods) and internal organs (mid-gut, hepatopancreas, heart and gill) of 29 affected wild spiny lobsters (Jasus edwardsii) and 14 unaffected in New Zealand. Initial signs of TFN were observed around the margins of lacerations to the tail fan, with more extensive signs extending from these presumptive sites of initiation. The establishment of the condition at points of injury is consistent with the penetration of TFN through the cuticle and tissue layers of the affected tail fans, which is rarely seen in other forms of shell disease. Entry into these tissues was characterised initially by caseous necrosis and haemocyte accumulation, followed by the spread of these responses together with melanisation. Additional pathological changes to the tail fans included pseudomembrane formation, detachment of epidermis or cuticle, clotted haemolymph and fibrosis. Among internal organs, pathological changes were found in a total of two mid-gut, four heart and two gill samples from eight lobsters with TFN, while no suspected changes were found in the organs of lobsters without TFN. The causes of internal organ pathology associated with TFN in spiny lobsters warrants more detailed research. en
dc.format.medium Print-Electronic en
dc.language eng en
dc.relation.ispartofseries Journal of invertebrate pathology en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.subject Myocardium en
dc.subject Heart en
dc.subject Gills en
dc.subject Hemolymph en
dc.subject Hepatopancreas en
dc.subject Tail en
dc.subject Animals en
dc.subject Palinuridae en
dc.subject Necrosis en
dc.title Pathology of tail fan necrosis in the spiny lobster, Jasus edwardsii. en
dc.type Journal Article en
dc.identifier.doi 10.1016/j.jip.2018.03.010 en
pubs.begin-page 5 en
pubs.volume 154 en
dc.rights.holder Copyright: The author en
dc.identifier.pmid 29573993 en
pubs.end-page 11 en
pubs.publication-status Published en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Research Support, Non-U.S. Gov't en
pubs.subtype Journal Article en
pubs.elements-id 734740 en
pubs.org-id Science en
pubs.org-id Biological Sciences en
pubs.org-id Marine Science en
dc.identifier.eissn 1096-0805 en
pubs.record-created-at-source-date 2018-03-26 en
pubs.dimensions-id 29573993 en


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