Understanding the ontogenetic changes in particle processing of the greenshellTM mussel, Perna canaliculus, in order to improve hatchery feeding practices

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dc.contributor.author Gui, Y
dc.contributor.author A.G. Jeffs
dc.contributor.author B. Dunphy
dc.contributor.author L.N. Zamora
dc.date.accessioned 2021-10-05T04:08:42Z
dc.date.available 2021-10-05T04:08:42Z
dc.date.issued 2016-2
dc.identifier.issn 0044-8486
dc.identifier.uri https://hdl.handle.net/2292/56763
dc.description.abstract Despite the commercial aquaculture importance of the GreenshellTM mussel, Perna canaliculus, the morphological development of gill structure (ctenidial filaments) in relation to potential particle feeding abilities have not been described. Scanning electron microscopy (SEM) and light microscopy were used to examine the ontogenetic changes across five size classes of mussels from post-settlement larvae to adults ranging from 300μm to >100mm in shell height. Key morphological characteristics were measured including filament width, the eulatero-frontal cirri (ELF) length, interfilamentary space (IFS) and the mean distance between adjacent ELF, dELF. Overall the development of the ctenidial filaments in P. canaliculus, shared some similarities to other homorhabdic filibranch bivalves with differences in the timing of development. Filament width and ELF length followed sigmoidal growth curves in relation to increasing shell height of mussels. The morphological changes of the ctenidia, reflected in changes in the ELF/IFS ratios, together with the development of cilia in the ELF may help explain the differences in the capture efficiency of small particles between small individuals (<6mm in shell height) and bigger mussels (around 60mm in shell height). Ctenidial filaments in small individuals are not fully developed and resemble the “leaking” model, letting small particles through and capturing particles between 15–25μm, while the filaments in bigger mussels resemble the “complete block” model being able to capture bacteria-sized particles around 2μm. This information is not only useful to further the understanding of the feeding biology of this species, but also for the feeding management in hatcheries producing large numbers of juveniles of this commercially important species, considering that under current hatchery practices small-sized mussels are being fed microalgal species mainly with a size of around 5μm.–This article provides information regarding the gill ontogenetic development of the commercially important GreenshellTM mussel, Perna canaliculus.–The information given will help improve hatchery practices, especially regarding the selection of adequate particle size for feeding post-settlement P. canaliculus.–Considering that mussel aquaculture is a global phenomenon, these results could be used worldwide in order to help the industry find economically feasible alternatives for mussel juvenile supply.The New Zealand GreenshellTM industry has recently invested $20M to build a large scale hatchery/nursery to address an on-going shortage with seed supply which has been constraining the growth of the industry. Shortages of mussel seed, caused by poor feeding and starvation, have resulted in seed shortages in the industry for the last three years, shaving off almost 20% production of the entire industry, in the order of $30M lost production a year. Hence there is intense interest in better understanding the feeding biology of juvenile mussels and using this knowledge to resolve the major production issues faced by this aquaculture industry. From our international contacts, we understand that other countries with significant mussel farming industries face similar issues, such as Chile. Therefore, we believe that there is strong reader interest and value in the publication of this fundamental research.
dc.format.medium Undetermined
dc.language eng
dc.publisher Elsevier BV
dc.relation.ispartofseries Aquaculture (Amsterdam, Netherlands)
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.
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm
dc.subject Science & Technology
dc.subject Life Sciences & Biomedicine
dc.subject Fisheries
dc.subject Marine & Freshwater Biology
dc.subject Suspension feeding
dc.subject Bivalve
dc.subject Greenshell (TM) mussel
dc.subject Particle capture
dc.subject Aquaculture
dc.subject Hatchery
dc.subject LATERO-FRONTAL CIRRI
dc.subject GREEN-LIPPED MUSSEL
dc.subject MYTILUS-EDULIS
dc.subject NEW-ZEALAND
dc.subject EVOLUTIONARY IMPLICATIONS
dc.subject BIVALVE MOLLUSKS
dc.subject GILL DEVELOPMENT
dc.subject ABFRONTAL CILIA
dc.subject CAPTURE
dc.subject LARVAE
dc.subject 0608 Zoology
dc.subject 0704 Fisheries Sciences
dc.title Understanding the ontogenetic changes in particle processing of the greenshellTM mussel, Perna canaliculus, in order to improve hatchery feeding practices
dc.type Journal Article
dc.identifier.doi 10.1016/j.aquaculture.2015.07.035
pubs.begin-page 120
pubs.volume 452
dc.date.updated 2021-09-20T05:04:33Z
dc.rights.holder Copyright: The author en
pubs.author-url http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000366205900015&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=6e41486220adb198d0efde5a3b153e7d
pubs.end-page 127
pubs.publication-status Published
dc.rights.accessrights http://purl.org/eprint/accessRights/RetrictedAccess en
pubs.subtype Journal Article
pubs.elements-id 496078
dc.identifier.eissn 1873-5622


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