Recent introduction of Polysiphonia morrowii (Ceramiales, Rhodophyta) to Punta Arenas, Chile
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Myung-Sook Kim
Abstract
Polysiphonia morrowii (Rhodomelaceae, Rhodophyta) is abundant in intertidal zones of the northwestern Pacific Ocean in spring, and has been introduced to the Mediterranean Sea. We collected specimens of this species from intertidal rocks in February in Punta Arenas, in southernmost Chile. Thalli were densely tufted, slender, and elongate, with four pericentral cells, no cortication and short tetrasporangial ultimate branchlets. The plastid protein-coding rbcL was analyzed from specimens collected in Chile and Korea, as well as from putative relatives. The rbcL sequences of the Chilean specimens were almost identical to those from Korea, and were clearly separated from other related taxa from Chile and other areas. These results suggest that P. morrowii has been introduced recently from the northwestern Pacific Ocean to Chile.
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Articles in the same Issue
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Articles in the same Issue
- Annual versus perennial growth cycle in Ruppia maritima L.: temporal variation in population characteristics in Mediterranean lagoons (Monolimni and Drana Lagoons, Northern Aegean Sea)
- Giant kelp (Macrocystis pyrifera) survival in deep water (25–40 m) during El Niño of 1997–1998 in Baja California, Mexico
- Effects of temperature and salinity on growth, reproduction and survival in the introduced red alga Heterosiphonia japonica (Ceramiales, Rhodophyta)
- Morphology and vegetative reproduction of the introduced species Hypnea cornuta (Rhodophyta, Gigartinales) in the Mar Piccolo of Taranto (Italy), Mediterranean Sea
- Recent introduction of Polysiphonia morrowii (Ceramiales, Rhodophyta) to Punta Arenas, Chile
- Effect of solar irradiance on lipids of the green alga Ulva fenestrata Postels et Ruprecht
- Phenolic contents of two brown algae, Turbinaria ornata and Sargassum mangarevense on Tahiti (French Polynesia): interspecific, ontogenic and spatio-temporal variations
- Interspecific and temporal variation in phlorotannin levels in an assemblage of brown algae
- New records of planktonic dinoflagellates (Dinophyceae) from the Mexican Pacific Ocean
- Sargassum kendrickii (Fucales, Phaeophyceae), a new species of subgenus Phyllotrichia from southern Australia
- Aglaothamnion rigidulum nov. spec. (Rhodophyta, Ceramiaceae) from South Africa