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Reproductive Phenology of Pterocladiella capillacea (Rhodophyta: Gelidiales) from Southern Baja California, Mexico

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Title: Reproductive Phenology of Pterocladiella capillacea (Rhodophyta: Gelidiales) from Southern Baja California, Mexico
Authors: Serviere-Zaragoza, Elisa
Scrosati, Ricardo
Issue Date: Jul 2002
Publisher: University of Hawai'i Press
Citation: Serviere-Zaragoza E, Scrosati R. 2002. Reproductive phenology of Pterocladiella capillacea (Rhodophyta: Gelidiales) from southern Baja California, Mexico. Pac Sci 56(3): 285-290.
Abstract: The abundance of vegetative and reproductive fronds of Pterocladiella
capillacea (Gelidiaceae) from an intertidal population at Lobos Point, on the Pacific
coast of southern Baja California, Mexico, was measured bimonthly between
March 1998 and January 1999. Fronds with tetrasporic sori occurred throughout
the year, although in low percentages with respect to the total amount of
fronds: monthly means ranged between 0.5% (May) and 6.0% (July). Fronds
with cystocarps and fronds with spermatangia were found only in January, with
even lower percentages: 0.15% and 0.10%, respectively. The overall predominance
of reproductive tetrasporophytic fronds over reproductive gametophytic
fronds is common in natural populations of the Gelidiaceae. Reproductive phenology,
however, varies widely within this family, even within the same species,
as is the case for P. capillacea. Little is known about factors affecting the reproductive
phenology of this cosmopolitan alga; field and laboratory studies are
needed to provide a reliable predictive framework.
ISSN: 0030-8870
Appears in Collections:Pacific Science Volume 56, Number 3, 2002

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