Journal
NEW ZEALAND JOURNAL OF MARINE AND FRESHWATER RESEARCH
Volume 54, Issue 2, Pages 167-176Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00288330.2019.1661260
Keywords
Bonnemaisoniales; introductions; invasive; life histories; South Island; tetrasporophytes
Categories
Funding
- Natural Sciences and Engineering Research Council of Canada [RGPIN-2015-04828]
- SSIF -NIWA SSIF [CARI19301]
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The tetrasporophytic 'Trailliella' stage of the red algal genus Bonnemaisonia is reported for the first time from the Southern Hemisphere. Here we describe a bloom of the tetrasporophyte of B. hamifera from the mouth of the Waikouaiti River, Karitane, South Island, where it occurred as thousands of free-floating tufts up to 1 cm wide in shallow water, accumulated in windrows on sand banks and beaches, and in the water column at depths of 10-12 m on the adjacent open coast. Gametophytic stages have not yet been found in New Zealand. The material collected to date is strictly vegetative, and reproduction occurs via fragmentation. The identity of the New Zealand samples as B. hamifera was confirmed by both morphology and rbcL sequencing. The abundance and floating dispersal of B. hamifera suggests that it is invasive and will become widely distributed in New Zealand.
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