First record of Bonnemaisonia hamifera (Bonnemaisoniales, Rhodophyta) in the South Pacific, from the South Island of New Zealand. Issue 2 (2nd April 2020)

• Record Type: Journal Article
• Authors: Garbary, David J.; D'Archino, Roberta; Flack, Brendan; Hepburn, Christopher D.; Nelson, Wendy A.; Pritchard, Daniel; Sutherland, Judy. E.
• Is Part Of: New Zealand journal of marine and freshwater research. Volume 54:Issue 2(2020)
• Page Start: 167
• Page End: 176
• Publication Date: 2020-04-02
• Subjects: Bonnemaisoniales -- introductions -- invasive -- life histories -- South Island -- tetrasporophytes; Marine biology -- New Zealand -- Periodicals; Freshwater biology -- New Zealand -- Periodicals; Freshwater biology; Marine biology; New Zealand; Periodicals; 578.77099305
• DOI: 10.1080/00288330.2019.1661260
• Languages: English
• ISSNs: 1175-8805

Abstract

ABSTRACT: 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, Karitāne, 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 rbc L sequencing. The abundance and floating dispersal of B. hamifera suggests that it is invasive and will become widely distributed in New Zealand.