A year-round ecophysiological study of Himantothallus grandifolius (Desmarestiales, Phaeophyta) at Signy Island, Antarctica

Drew, Edward A.; Hastings, Robin M.

doi:10.2216/i0031-8884-31-3-4-262.1

Cited by 72 publications

(72 citation statements)

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“…in the Antarctic Peninsula region (Drew and Hastings 1992;Klö ser et al 1993). At the boundary with the temperate region, maximum summer temperatures can go up to about 5°C in the Antarctic and up to about 8-10°C in the Arctic (Wiencke and tom Dieck 1989;Lü ning 1990;Svendsen et al 2002).…”

Section: The Environment Of Seaweeds In Polar Watersmentioning

confidence: 99%

“…If the ice is also covered by snow, irradiance can be diminished to less than 2% of the surface value. Consequently, seaweeds may be exposed up to about 10 months of darkness or very low light conditions (Chapman and Lindley 1980;Dunton 1990;Miller and Pearse 1991;Drew and Hastings 1992;Klö ser et al 1993).…”

Section: The Environment Of Seaweeds In Polar Watersmentioning

confidence: 99%

“…Macronutrient concentrations are high and not limiting for seaweeds at any time of the year in the Antarctic (Deacon 1937;Drew and Hastings 1992). However, iron concentrations are low in the Antarctic and inhibit phytoplankton growth (de Baar 1994;de Baar et al 1995).…”

Section: The Environment Of Seaweeds In Polar Watersmentioning

confidence: 99%

“…As far as we know today these taxa are characterized by a highly diversified structure and complex morphofunctional processes including a temporal synchronization between photosynthesis and growth as well as the long-distance transport of organic substances (Lü ning et al 1973;Schmitz 1981;Clayton and Ashburner 1990;Drew and Hastings 1992;Gó mez et al 1996). Such characteristics represent strategies to cope with the marked seasonality in polar and cold-temperate regions (Chapman and Lindley 1980;Gó mez and Lü ning 2001).…”

Section: Reproductive and Physiological Thallus Anatomymentioning

confidence: 99%

“…Up to three generations of blades may be found in one individual. As in species of Laminaria, blades of Himantothallus grandifolius grow in their lower part (Dieckmann et al 1985;Drew and Hastings 1992). Punch-hole experiments with A. mirabilis indicate that the blade elongates longitudinally as in Laminaria solidungula through a seasonally active intercalary meristem (Gó mez et al 1995a).…”

Section: Reproductive and Physiological Thallus Anatomymentioning

confidence: 99%

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Life strategy, ecophysiology and ecology of seaweeds in polar waters

Wiencke

Clayton

Gómez

et al. 2006

Rev Environ Sci Biotechnol

136

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Polar seaweeds are strongly adapted to the low temperatures of their environment, Antarctic species more strongly than Arctic species due to the longer cold water history of the Antarctic region. By reason of the strong isolation of the Southern Ocean the Antarctic marine flora is characterized by a high degree of endemism, whereas in the Arctic only few endemic species have been found so far. All polar species are strongly shade adapted and their phenology is finely tuned to the strong seasonal changes of the light conditions. The paper summarises the present knowledge of seaweeds from both polar regions with regard to the following topics: the history of seaweed research in polar regions; the environment of seaweeds in polar waters; biodiversity, biogeographical relationships and vertical distribution of Arctic and Antarctic seaweeds; life histories and physiological thallus anatomy; temperature demands and geographical distribution; light demands and depth zonation; the effect of salinity, temperature and desiccation on supraand eulittoral seaweeds; seasonality of reproduction and the physiological characteristics of C. Wiencke (&) AE U. H. Lü der

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