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DNA identification of the phyllosoma diet of Jasus edwardsii and Scyllarus sp. Z

SC Connell; R O'Rorke; AG Jeffs; SD Lavery
New Zealand Journal of Marine and Freshwater Research · Vol. 48, Issue 3 · pp. 416-429 · 2014

Abstract

The development of an effective artificial larval diet has been a major stumbling block for advancing the aquaculture of spiny lobsters internationally. Attempts to determine the natural diet of spiny lobster larvae have been impeded by their small size and sparse distribution in the open ocean, making these larvae difficult to study using conventional methods. Recent advances in molecular genetic techniques have provided a novel route for identifying the natural prey of spiny lobster larvae (phyllosoma). In this study, sequences from zooplankton found associated with phyllosomas, along with sequences from GenBank, were used to design a suite of group‐specific primers. These primers were able to amplify via the polymerase chain reaction (PCR) a short (100–200 base pair) DNA fragment from the 16S or COI locus of potential prey but not from lobster. These methods were applied to four wild‐caught phyllosomas of Jasus edwardsii and two phyllosomas of Scyllaru s sp. Z. Gadiforme, Cnidaria, Gastropoda and Decapoda crustacean (non‐lobster) DNA sequences were obtained from the gut contents of these lobster larvae and inferred as prey. These initial results confirm previous studies using other less definitive methods which have indicated that phyllosomas are opportunistic predators of a wide range of zooplankton taxa.

Bibliographic Information

JournalNew Zealand Journal of Marine and Freshwater Research
PublisherWiley
Publication Date2014-09-01
Publication Year2014
Volume48
Issue3
Pages416-429
Document TypeJournal Article
Print ISSN0028-8330
eISSN1175-8805
DOI10.1080/00288330.2014.914042
SubjectMarine & Freshwater Science

Access Information

NARA Access Coverage1997-01-01~Current
Journal Homepagehttps://onlinelibrary.wiley.com/loi/11758805
Publisher PageOpen Publisher Page
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