Ecological studies of economic red algae. II. Culture studies of Chondrus crispus Stackhouse and Gigartina stellata (Stackhouse) batters
1972; Elsevier BV; Volume: 8; Issue: 1 Linguagem: Inglês
10.1016/0022-0981(72)90050-0
ISSN1879-1697
AutoresRichard L. Burns, Arthur C. Mathieson,
Tópico(s)Biocrusts and Microbial Ecology
ResumoThe carpospores of Chondrus crispus Stackhouse and Gigartina stellata (Stackhouse) Batters were grown under a variety of light intensities, temperatures, and salinities. Chondrus exhibited a rapid increase in growth concurrent with increasing intensities up to 440 ft-c and tended to level off above this intensity. Gigartina exhibited a less rapid, but more consistent, increase in cell production coincident with increasing light intensity through 770 ft-c. The growth of both species was accelerated with increasing temperatures to 19 °C. Spores of C. crispus germinated and grew relatively rapidly over a broad range of salinities (15–45‰ at 19°C). Gigartina exhibited a more restricted tolerance to reduced salinity (20 ‰ at 19°C). The local distribution and abundance of both species are correlated with their responses in culture as well as with previous observations on their photosynthesis and respiration.
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