Hopkins Marine Station Student Paper

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(full paper is archived in the Miller Library)

Title: Carpospores of Rhodoglossum affine (Rhodophyta): adherence rate and effects of temperature and salinity on early growth
Student Author(s): Reimnitz, Joel D.
Faculty Advisor(s): Burnett, Robin
Pages: 27
Location: Final Papers Biology 175H
Date: June 1979
Keywords: midtide forest community
Abstract: The percentage of carpospores of Rhodoglossum affine (Harvey) Kylin adhered to glass plates was shown to attain a maximum level at 20 minutes following artificial release and drop to a significantly lower level at 4 hours. Early morphological development of tetrasporphyte embryos is described. One-week growth of embryos in response to gradients of temperature and salinity have been investigated. In all treatments embryos grew significantly faster if settled first at 14 degrees/33o/oo then moved to environmental growth baths than if settled directly in those baths. The results suggest that it may be useful to study environmental effects on early embryonic development and growth of R. affine carpospores when considering the geographical distribution of the adult tetrasporophyte.