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LIFE HISTORY AND GROWTH OF LAURENCIA BRACHYCLADOS (RHODOPHYTA, CERAMIALES) 1
Author(s) -
McDermid Karla J.
Publication year - 1990
Publication title -
journal of phycology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 127
eISSN - 1529-8817
pISSN - 0022-3646
DOI - 10.1111/j.0022-3646.1990.00388.x
Subject(s) - ceramiales , biology , thallus , laurencia , gametophyte , rhodomelaceae , botany , algae , sporophyte , zoology , pollen
Laurencia brachyclados Pilger from Hawai'i completed a “ Polysiphonia ‐type” tri‐phasic life history in 21 weeks in laboratory culture. Tetraspores developed into gametophytes in a nearly 1:1:1 ratio of females: males: non‐reproductive. Carpospores were released as early as 21 days after mixing virgin female and male gametophytes. Cultured thalli showed a “guerilla type” growth form. Other Hawaiian Laurencia species in culture had longer maturation times or remained non‐reproductive. Variation in life history schedules may influence Laurencia species coexistence and algal community structure.