Abstract
The relative growth rates of juvenile Macrocystis pyrifera in southern California kelp forests were substantially reduced during the El Niño of 1982–1984. The lower growth rates were correlated with increased temperature and decreased nitrogen availability. Fertilization of juvenile plants with slow-release nitrogen-phosphorus fertilizer increased their growth rates to levels previously observed when temperatures were low and nutrient levels were high. The limitation in growth of M. pyrifera by levels of available nutrients during El Niño was in contrast to the usual limitation of growth by irradiance during non-El Niño years. Thus, there was a shift in the relative importance of factors controlling growth of juvenile M. pyrifera during El Niño.
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Literature cited
Cane, M. A.: Oceanographic events during El Niño. Science, N.Y. 222, 1189–1202 (1983)
Chapman, A. R. O. and J. S. Craigie: Seasonal growth in Laminaria longicruris: relations with reserve carbohydrate storage and production. Mar. Biol. 46, 209–213 (1978)
Dayton, P. K. and M. J. Tegner: Catastrophic storms, El Niño, and patch stability in a southern California kelp community. Science, N.Y. 224, 283–285 (1984)
Dean, T. A. and F. R. Jacobsen: Growth of juvenile Macrocystis pyrifera (Laminariales) in relation to environmental factors. Mar. Biol. 83, 301–311 (1984)
Dean, T. A., S. C. Schroeter and J. D. Dixon: Effects of grazing by two species of sea urchins (Strongylocentrotus franciscanus and Lytechinus anamesus) on recruitment and survival of two species of kelp (Macrocystis pyrifera and Pterygophora californica). Mar. Biol. 78, 301–313 (1984)
Dhorman, C. and D. Palmer: Southern California summer coastal upwelling. In: Coastal upwelling, pp 44–56. Ed. by F. Richards. Washington, D. C.: American Geophysical Union 1981
Fiedler, P. C.: Satellite observations of the 1982–1983 El Niño along the U.S. Pacific coast. Science, N.Y. 224, 1251–1254 (1984)
Foster, M., T. A. Dean and L. E. Deysher: Subtidal techniques. In: Handbook of phycological methods: ecological field methods for macroalgae. Ed. by M. M. Littler. Cambridge: Cambridge University Press (In press) 1985
Gerard, V. A.: Growth and utilization of internal nitrogen reserves by the gian kelp Macrocystis pyrifera in a lownitrogen environment. Mar. Biol. 66, 27–35 (1982)
Gerard, V. A.: Physiological effects of El Niño on giant kelp in southern California. Mar. Biol. Lett. 5, 317–322 (1984)
Jackson, G.: Nutrients and production of giant kelp. Macrocystis pyrifera off southern California. Limnol. Oceanogr. 22, 979–995 (1977)
Kerr, R. A.: Fading El Niño broadening scientist's view. Science, N.Y. 221, 940–941 (1984)
Lapointe, B. E., C. J. Dawes and K. R. Tenore: Interactions between light and temperature on the physiological ecology of Gracilaria tikvahiae (Gigartinales: Rhodophyta). II. Nitrate uptake and levels of pigments and chemical constituents. Mar. Biol. 80, 171–178 (1984)
Lapointe, B. E. and K. R. Tenore: Experimental outdoor studies with Ulva fasciata. I. Interaction of light and nitrogen on growth and biochemical composition. J. exp. mar. Biol. Ecol. 53, 135–152 (1981)
Lüning, K.: Growth strategies of three Laminaria species (Phaeophyceae) inhabiting different depth zones in the sublittoral region of Helgoland (North Sea). Mar. Ecol. Prog. Ser. 1, 195–207 (1979)
Manley, S. L. and W. J. North: Phosphorus and the growth of juvenile Macrocystis pyrifera (Phaeophyta) sporophytes. J. Phycol. 20, 389–393 (1984)
North, W. J., V. Gerard and J. Kuwabara: Farming Macrocystis at coastal and oceanic sites. In: Synthetic and degradive processes in marine macrophytes, pp 247–262. Ed. by L. M. Srivastava. Berlin: De Gruyter 1982
North, W. J. and R. C. Zimmerman: Influences of macronutrients and water temperature on summertime survival of Macrocystis canopies. Hydrobiologia 116/117, 419–424 (1984)
Rhee, G.-Y. and I. J. Gotham: The effect of environmental factors on phytoplankton growth: light and the interactions of light with nitrate limitation. Limnol. Oceanogr. 26, 649–659 (1981)
Shivji, M.: Interactive effects of light and nitrogen on growth and chemical composition of juvenile Macrocystis pyrifera (L.) C. Ag. (Phaeophyceae) sporophytes. J. exp. mar. Biol. Ecol. 89, 81–91 (1985)
Simpson, J. J.: A simple model of the 1982–1983 California “El Niño”. Geophys. Res. Lett. 11, 243–246 (1984)
Wheeler, P. A. and W. J. North: Effect of nitrogen supply on nitrogen content and growth rate of juvenile Macrocystis pyrifera (Phaeophyta) sporophytes. J. Phycol. 16, 577–582 (1981)
Zimmerman, R. C. and J. N. Kremer: Episodic nutrient supply to a kelp forest ecosystem in southern California. J. mar. Res. 42, 591–604 (1984)
Zimmerman, R. C. and D. L. Robertson: Effects of El Niño on local hydrography and growth of the giant kelp, Macrocystis pyrifera at Santa Catalina Island, California. Limnol. Oceanogr. (In press). (1985)
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Communicated by J. M. Lawrence, Tampa
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Dean, T.A., Jacobsen, F.R. Nutrient-limited growth of juvenile kelp, Macrocystis pyrifera, during the 1982–1984 “El Niño” in southern California. Mar. Biol. 90, 597–601 (1986). https://doi.org/10.1007/BF00409280
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DOI: https://doi.org/10.1007/BF00409280