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  • Other Sources  (6)
  • Articles (OceanRep)  (6)
  • American Association for the Advancement of Science (AAAS)
  • American Chemical Society (ACS)
  • American Geophysical Union (AGU)
  • Balkema
  • 1990-1994  (6)
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  • Other Sources  (6)
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  • 1
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    The boring sponge Cliona vastifica in a subarctic population of Chlamys islandica - An example of balanced commensalism? (1994)
    Balkema
    In:  In: Sponges in Time and Space. Biology, Chemistry, Paleontology. , ed. by Van Soest, R. W. M., van Kempen, T. M. G. and Braekman, J. S. Balkema, Rotterdam, Netherlands, pp. 289-296. ISBN 90-5410-097-4
    Details
    Publication Date: 2018-04-06
    Description: The investigation was perfo1med on a stable population of the edible Iceland Scallop Chla111ys islandica (Millier) in the subarctic Balsfjord, Tromsi:i, Northern Norway. 470 Chla111ys specimens were collected and dry weight of the soft parts and of the shell, height of the shell, age of the animal and number of holes bored into each valve were determined. The population was found to be heavily infested by the boring sponge Cliona vast(fica Hancock, which is here close to its northern distribution limit. Nearly 90 % of all scallops had borings in their shells. Only specimens with an age of 3 years and less and a shell height of 35 mm or less were not infested. 100 % of scallops aged 16 years or more harbour C. vastifica in their shells. The average degree of infestation as judged by number of borings in the shell increases with age. However, statistical analysis of the relation of number of borings to both scallop body mass and shell weight at certain shell sizes indicates that C. vastifica does not impair the development of its substrate clams. The reason for this is the high growth rate of Chla111ys islandica in a fully suitable habitat and the comparatively low growth rate of Cliona vast(fica living close to the limit ofits geographical distribution; this long-term coexistence may represent a subtle balance between the commensalistic boring sponge and substrate bivalve hardly possible in warmer areas.
    Type: Book chapter , NonPeerReviewed
    Format: text
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  • 2
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    Causes of Decadal Climate Variability over the North Pacific and North America (1994)
    American Association for the Advancement of Science (AAAS)
    In:  Science, 266 (5185). pp. 634-637.
    Details
    Publication Date: 2016-09-09
    Description: The cause of decadal climate variability over the North Pacific Ocean and North America is investigated by the analysis of data from a multidecadal integration with a state-of-the-art coupled ocean-atmosphere model and observations. About one-third of the low-frequency climate variability in the region of interest can be attributed to a cycle involving unstable air-sea interactions between the subtropical gyre circulation in the North Pacific and the Aleutian low-pressure system. The existence of this cycle provides a basis for long-range climate forecasting over the western United States at decadal time scales.
    Type: Article , PeerReviewed
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  • 3
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    A Two-Tiered Approach to Long-Range Climate Forecasting (1993)
    American Association for the Advancement of Science (AAAS)
    In:  Science, 261 (5124). pp. 1026-1029.
    Details
    Publication Date: 2016-09-09
    Description: Long-range global climate forecasts were made by use of a model for predicting a tropical Pacific sea-surface temperature (SST) in tandem with an atmospheric general circulation model. The SST is predicted first at long lead times into the future. These ocean forecasts are then used to force the atmospheric model and so produce climate forecasts at lead times of the SST forecasts. Prediction of seven large climatic events of the 1970s to 1990s by this technique are in good agreement with observations over many regions of the globe.
    Type: Article , PeerReviewed
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  • 4
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    Sea-Surface Temperature from Coral Skeletal Strontium/Calcium Ratios (1992)
    American Association for the Advancement of Science (AAAS)
    In:  Science, 257 (5070). pp. 644-647.
    Details
    Publication Date: 2019-03-13
    Description: Seasonal records of tropical sea-surface temperature (SST) over the past 10(5) years can be recovered from high-precision measurements of coral strontium/calcium ratios with the use of thermal ionization mass spectrometry. The temperature dependence of these ratios was calibrated with corals collected at SST recording stations and by (18)O/(16)O thermometry. The results suggest that mean monthly SST may be determined with an apparent accuracy of better than 0.5 degrees C. Measurements on a fossil coral indicate that 10,200 years ago mean annual SSTs near Vanuatu in the southwestern Pacific Ocean were about 5 degrees C colder than today and that seasonal variations in SST were larger. These data suggest that tropical climate zones were compressed toward the equator during deglaciation.
    Type: Article , PeerReviewed
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  • 5
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    Global Climate Change and Intensification of Coastal Ocean Upwelling (1990)
    American Association for the Advancement of Science (AAAS)
    In:  Science, 247 (4939). pp. 198-201.
    Details
    Publication Date: 2017-01-04
    Description: A mechanism exists whereby global greenhouse warning could, by intensifying the alongshore wind stress on the ocean surface, lead to acceleration of coastal upwelling. Evidence from several different regions suggests that the major coastal upwelling systems of the world have been growing in upwelling intensity as greenhouse gases have accumulated in the earth's atmosphere. Thus the cool foggy summer conditions that typify the coastlands of northern California and other similar upwelling regions might, under global warming, become even more pronounced. Effects of enhanced upwelling on the marine ecosystem are uncertain but potentially dramatic.
    Type: Article , PeerReviewed
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  • 6
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    Cephalopodologie (1990)
    American Association for the Advancement of Science (AAAS)
    In:  Science, 248 . pp. 898-899.
    Details
    Publication Date: 2017-02-15
    Type: Article , PeerReviewed
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