First record of pre-settlement juvenile bluenose, Hyperoglyphe antarctica,from New Zealand

Citation
Caj. Duffy et al., First record of pre-settlement juvenile bluenose, Hyperoglyphe antarctica,from New Zealand, NZ J MAR FR, 34(2), 2000, pp. 353-358
Citations number
29
Categorie Soggetti
Aquatic Sciences
Journal title
NEW ZEALAND JOURNAL OF MARINE AND FRESHWATER RESEARCH
ISSN journal
00288330 → ACNP
Volume
34
Issue
2
Year of publication
2000
Pages
353 - 358
Database
ISI
SICI code
0028-8330(200006)34:2<353:FROPJB>2.0.ZU;2-X
Abstract
Epipelagic juvenile bluenose, Hyperoglyphe antarctica (Carmichael 1818), ar e recorded from New Zealand for the first time. Two specimens were collecte d beneath flotsam near Nga Motu/Sugar Loaf Islands, west coast North Island in September 1996, and at least 20 were found inside a piece of trawl net drifting east of Cape Kidnappers, east coast North Island in September 1997 . Live specimens between 65 and 87.3 mm standard length were cryptically co loured and were able to change their body colour from dark coppery-bronze t o blue. Freshly dead specimens lacked the thick mucous coat found in juveni les of other Hyperoglyphe species known to associate with jellyfish. We sug gest that H. antarctica recruitment may be higher along the lower east coas t North Island because of retention of flotsam-associated juveniles in the East Cape and Wairarapa Eddies, and that juveniles spawned off south-east A ustralia may reach New Zealand in the Tasman Current.