Range Extension of Cutleria hancockii Dawson (Cutleriales, Phaeophyta) to the Southwestern Gulf of California, Mexico
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R. Riosmena-Rodríguez
Abstract
A range extension of Cutleria hancockii Dawson to the southern portion of the Gulf of California is presented based on collections developed in several localities from Bahía de Los Ángeles, Bahía Concepción, Bahía de La Paz and Bahía de Los Muertos between March of 1996 and May of 2000. Punta Perico in Bahía de Los Muertos represents the southern limit of the species extending the known distribution by 400 km. Several modifications in habitat and morphology were observed within the new range. The present reports also extend the vertical distribution of the species from the intertidal zone to subtidal areas with rocky and rhodolith substrates. As part of the habitat modification a reduction in the number of fronds per turf was observed. Morphologically the plants reduce their size significantly along the geographical cline, this suggests that temperature and light intensity are playing a major role in the distribution. An updated description of the species is provided based on the observation of variations in the range of morphological and anatomical features observed in the new collections.
Copyright © 2001 by Walter de Gruyter GmbH & Co. KG
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Articles in the same Issue
- Planktonic Silicoflagellates (Dictyochophyceae) from the Mexican Pacific Ocean
- Checklist of Mediterranean Seaweeds. III. Rhodophyceae Rabenh. 1. Ceramiales Oltm.
- Range Extension of Cutleria hancockii Dawson (Cutleriales, Phaeophyta) to the Southwestern Gulf of California, Mexico
- Taxonomic Notes on Marine Algae from Malaysia. VI. Five Species of Ceramiales (Rhodophyceae)
- Geographical Distribution, Habitat and Reproductive Phenology of the Genus Kallymenia (Gigartinales, Rhodophyta) from Catalonia, Spain
- Changes in Growth Rate, Anatomy and Polysaccharide Content of a Sterile Form of Tichocarpus crinitus (Gmel.) Rupr. (Rhodophyta, Tichocarpaceae) Grown under Differing Photon Irradiances in the Sea of Japan, Russia
- FITC-Phalloidin Staining of F-Actin in Aglaothamnion oosumiense and Griffithsia japonica (Rhodophyta)
- Distribution and Dominance of Two Introduced Turf-forming Macroalgae on the Coast of Tuscany, Italy, Northwestern Mediterranean Sea in Relation to Different Habitats and Sedimentation
