Temperature requirements of growth and temperature tolerance of macroalgae endemic to the Antarctic Region

Wiencke, Christian; Dieck, I. tom

doi:10.3354/meps054189

Cited by 90 publications

(64 citation statements)

References 12 publications

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“…These results show that macroalgae from the Arctic region are mostly less adapted to low temperatures than algae from the Antarctic region (Wiencke & tom Dieck, 1989). This applies especially to the eurythermal group, both in regard to growth and temperaturetolerance level.…”

Section: General Temperature Characteristicsmentioning

confidence: 55%

“…Fortes & Lfining, 1980;Bolton, 1983;Guiry et al, 1987;Wiencke & tom Dieck, 1989, although some investigations used experimental periods of up to seven months (Rueness & Tanager, 1984;Yarish et al, 1986). In the current study, growth rates were determined weekly or fortnightly over 5 (or 6) weeks (Fig.…”

Section: Methodological Considerationsmentioning

confidence: 99%

“…The species are listed in Table 1. Algae were subsequently cultivated in the laboratory at a temperature of 10 ~ Cultivation methods, determination of growth rates and upper survival temperatures (duration of experiments: 2 weeks) were carried out as described by Wiencke & tom Dieck (1989). The growth experiments, however, were partly modified; growth was followed over a period of 5 weeks; Fresh weight was measured weekly or fortnightly and the algal biomass was reduced to initial weight, in order to exclude the effects of low light conditions resulting from self-shading.…”

Section: Methodsmentioning

confidence: 99%

“…The low USL of C. secundaturn (17 ~ is the lowest so far to be determine~ ~n Arctic seaweeds, and nearly similar to those of endemic Antarctic macroalgae (Wiencke & tom Dieck, 1989). The temperature-growth ranges are expected to be relatively small with growth optima at low temperatures.…”

Section: General Temperature Characteristicsmentioning

confidence: 99%

“…Hence, a stenothermal flora and fauna developed in the Antarctica, with a high growth efficiency at low temperatures and a correspondingly low tolerance to high temperatures (Hempel, 1987;Wiencke & tom Dieck, 1989. In contrast, Arctic and cold-temperate species from the Northern Hemisphere are relatively eurythermal (Bolton & Lfining, 1982;Bolton, 1983;Egan et al, 1990;tom Dieck, , 1992btom Dieck, , 1993.…”

Section: Bfologische Anstalt Helgoland Hamburgmentioning

confidence: 99%

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Temperature requirements for growth and survival of macroalgae from Disko Island (Greenland)

Bischoff

Wiencke

1993

Helgolander Meeresunters

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The temperature requirements for growth and upper temperature tolerance were determined in 16 macroalgal species collected on Disko Island (Greenland). The upper survival temperatures were examined in 1 ~ steps, and growth measured at 5~ intervals between 0 and 20 ~ using a refined method, where the fresh weight was determined weekly or fOrtnightly over a period of 5 or 6 weeks. To express temperature-growth responses, growth rates of temperatureacclimated plants were taken. Two groups with different temperature requirements were identified: The upper survival temperatures in these species and inChaetomorpha tortuosa, Bangia atropurpurea and Eudesme virescens were between 24 and 31 ~ These algal species showed little adaptation to the Arctic temperatures. In contrast, algae from the first group exhibited a relatively high adaptation to low temperatures -approaching the low temperature requirements of Antarctic algae. The results are discussed in relation to the geographic distribution of individual species.

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Section: General Temperature Characteristicsmentioning

confidence: 55%

Section: Methodological Considerationsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: General Temperature Characteristicsmentioning

confidence: 99%

Section: Bfologische Anstalt Helgoland Hamburgmentioning

confidence: 99%

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Temperature requirements for growth and survival of macroalgae from Disko Island (Greenland)

Bischoff

Wiencke

1993

Helgolander Meeresunters

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The Dynamic Mosaic

Barnes

Conlan

2012

Antarctic Ecosystems

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Life strategy, ecophysiology and ecology of seaweeds in polar waters

Wiencke¹,

Clayton²,

Gómez³

et al. 2006

Life in Extreme Environments

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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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Temperature requirements of growth and temperature tolerance of macroalgae endemic to the Antarctic Region

Abstract: Temperature requirements for growth and upper temperature tolerance were determined in 6 brown algal and 1 red algal species endemic to the Antarctic region.

Cited by 90 publications

References 12 publications

Temperature requirements for growth and survival of macroalgae from Disko Island (Greenland)

Temperature requirements for growth and survival of macroalgae from Disko Island (Greenland)

The Dynamic Mosaic

Life strategy, ecophysiology and ecology of seaweeds in polar waters

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