Abstract
Respiration rates of Hypnea musciformis (Wulfen) Lamouroux in Florida, USA, generally increased with increased temperature. Gulf coast H. musciformis respired at significantly higher rates than the Atlantic coast population, which exhibited a region of temperature independence between 24°–32°C. Respiration rates were highest in the fall and winter, during the periods of rapid growth. Respiration rates were lowest in the summer indicating a period of storage and low metabolism. Photosynthetic responses to various levels of light and temperature indicated that the Gulf coast population was more tolerant to high light intensities than the Atlantic coast population. Maximum photosynthetic responses for both populations occurred between 24° and 32°C which corresponds to the shallow slope region of the respiration-temperature curves. The results indicate that water temperature rather than light intensity is a significant factor in modifying seasonal photosynthetic capacities. The greatest seasonal variation in photosynthetic responses occurred at the light-temperature levels of highest responses while little seasonal variation was demonstrated at tolerance limits.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature Cited
Brinkhuis, B.H. and R.E. Jones: Photosynthesis in whole plants of Chondrus crispus. Mar. Biol. 27, 137–141 (1974)
Brinkhuis, B.H.: Seasonal variations in salt-marsh macroalgae photosynthesis. I. Ascophyllum nodosum ecad scorpioides. Mar. Biol. 44, 165–175 (1977a)
Brinkhuis, B.H.. Seasonal variations in salt-marsh macroalgae photosynthesis. II. Fucus vesiculosus and Ulva lactuca. Mar. Biol. 44, 177–186 (1977b)
Davis, M.A.: Seasonal comparison of photosynthetic and respiratory rates of Bostrychia binderi Harvey from mangroves and salt marsh communities, 68 pp. M.A. Thesis. Univ. of South Florida 1977
Dawes, C.J., J.W. LaClaire and R.E. Moon: Culture studies on Eucheuma nudum J. Agardh, a carrageenan producing red alga from Florida. Aquaculture 7, 1–9 (1976a)
Dawes, C.J., R. Moon and J. LaClaire: Photsynthetic responses of the red alga Hypnea musciformis (Wulfen) Lamouroux (Gigartinales). Bull. Mar. Sci. 26, 467–473 (1976b)
Durako, M.J. and C.J. Dawes: A comparative seasonal study of two populations of Hypnea musciformis from the east and west coasts of Florida. I. Growth and chemistry. Mar. Biol. (1980)
Eiseman, N.J.: Marine algae of Point of Rocks, Florida, 105 pp Ph.D. Dissertation. Univ. of South Florida, Tampa 1975
Fox, R.: A study of settling, attachment and growth of Codium fragile on shellfish on Long Island waters. U.S. Dept. Commerce, NOAA, National Mar. Fish. Service, Annual Report of the Jellyfish Act. P. L. pp 89–720. 1971
Gibson, C.E.: A field and laboratory study of oxygen uptake by plantation blue-green algae. J. Ecol. 63, 867–880 (1975)
Jones, R.I.: The importance of temperature conditioning to the respiration of natural phytoplankton communities. Br. phycol. J. 12, 277–285 (1977)
King, R.J. and W. Schramm: Determination of photosynthetic rates for the marine algae Fucus vesiculosus and Laminaria digitata. Mar. Biol. 37, 209–213 (1976a)
King, R.J. and W. Schramm: Photosynthetic rates of benthic marine algae in relation to light intensity and seasonal variations. Mar. Biol. 37, 215–222 (1976b)
Littler, M.M. and S.N. Murray: The primary productivity of marine macrophytes from a rocky intertidal community. Mar. Biol. 27, 131–135 (1974)
Mathieson, A.C. and C.J. Dawes: Ecological studies of Floridian Eucheuma (Rhodophyta, Gigartinales). II. Photosynthesis and respiration. Bull. Mar. Sci. 24, 274–285 (1974)
Mathieson, A.C. and T.L. Norall: Physiological studies of subtidal red algae. J. exp. mar. Biol. Ecol. 20, 237–247 (1975)
Newell, R.C. and V.I. Pye: Seasonal variations in the effect of temperature on the respiration of certain intertidal algae. J. mar. biol. Ass. UK. 48, 341–348 (1968)
Ramus, J., I. Beale and D. Mauzerall: Correlation of changes in pigment content with photosynthetic capacity of seaweeds as a function of water depth. Mar. Biol. 37, 231–238 (1976)
Umbriet, W.W., R.H. Burris and J.F. Stauffer: Manometric techniques for the study of tissue metabolism, 387 pp Minneapolis, Minnesota: Barges Publishing Co. 1972
Yokohama, Y.: Photosynthesis-temperature relationships in several benthic marine algae. Proc. int. Seaweed Symp. (7, Sapporo), pp 286–291. New York and Toronto: Wiley and Sons 1972
Yokohama, Y.: A comparative study on photosynthesis-temperature relationships and their seasonal changes in marine algae. Int. Revue ges. Hydrobiol. 58, 463–472 (1973)
Zavodnik, N.: Seasonal variations in rate of photosynthetic activity and chemical composition of the littoral seaweeds common to North Adriatic. Part I. Fucus virsoldes (Don) J. Ag. Bot. Mar. 16, 155–165 (1973a)
Zavodnik, N.:Seasonal variations in rate of photosynthetic activity and chemical compostion of the littoral seaweeds common to North Adriatic. Part II. Wrangelia penicillata C. Ag. Bot. Mar. 16, 166–170 (1973b)
Author information
Authors and Affiliations
Additional information
Communicated by I. Morris, West Boothbay Harbor
Rights and permissions
About this article
Cite this article
Durako, M.J., Dawes, C.J. A comparative seasonal study of two populations of Hypnea musciformis from the East and West Coasts of Florida, USA II. Photosynthetic and respiratory rates. Mar. Biol. 59, 157–162 (1980). https://doi.org/10.1007/BF00396863
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00396863