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  • 2005-2009  (13)
  • 1985-1989  (11)
  • 1970-1974  (14)
  • 1965-1969  (11)
  • 1950-1954  (13)
  • 1940-1944  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Observations and experiments on the phytoplankton of Blelham Tarn, English Lake District (1974)
    Oxford, UK : Blackwell Publishing Ltd
    Freshwater biology 4 (1974), S. 0 
    Details
    ISSN: 1365-2427
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Tubes composed of butyl rubber have been placed in a small English lake in an area where the water is 11-12 m deep. Each tube, when fully distended, contains over 18 000 m3 of water. The tubes are anchored to the shore and lake bottom. A boat can be rowed into them over a specially strengthened portion ofthe margin. The first was installed and its water isolated from that in the lake by the end of July 1970 and the second tube at the beginning of October 1970. The installation, maintenance, and performance of the tubes are described; as are suggested improvements. The temperature regime in the tubes closely follows that in the lake. If the chemical conditions are favourable, the seasonal cycle of Melosira in a tube is similar to that n i the lake. Contamination of the water in the tubes by that in the lake is slight and has a negligible effect on chemical conditions within them. Water can be lost from the tubes under certain conditions. The reverse does not happen. The phytoplankton communities in the tubes are similar in quality to those ofthe lake, even after 2-5 years of separation. The evidence suggests that the tubes are suitable for investigations on certain factors determining the abundance and seasonal cycles of algae in lakes and for other limnological studies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2427.1974.tb00105.x
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  • 2
    Electronic Resource
    Electronic Resource
    The phytoplankton of an enriched, soft-water lake subject to intermittent hydraulic flushing (Grasmere, English Lake District) (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Freshwater biology 19 (1988), S. 0 
    Details
    ISSN: 1365-2427
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SUMMARY. 1. The abundance and species composition of the phytoplankton of Grasmere were monitored over a 12-year period following the commissioning of a small sewage treatment works, upstream of the lake.2. Although Grasmere has been subject to increased phosphorus-loading and has quickly developed many features associated with eutrophication, the composition of its plankton has retained the characteristics of a mesotrophic, soft-water lake: a vernal diatom maximum, generally dominated by Asterionella, is followed by summer growths of nanoplanktonic species, of various colonial Chlorophyceae, before a substantial return to Asterionella-dominance in the autumn. In cooler summers there have been episodes of renewed diatom growth. followed by truncated recapitulations of the essential summer sequence. Anabaena solitaria was relatively common in drier summers when dissolved inorganic nitrogen fell to low concentrations, although many of the ‘larger’ algal species associated with stratified eutrophic lakes (Aphanizomenon, Microcystis, Ceratium spp.) have failed to become abundant in Grasmere.3. Mean biomass levels (as indicated by chlorophyll concentration) have increased in response to the enrichment, though they do not conform well with most chlorophyll/phosphorus regression-models.4. The key factor resisting a more complete transition to a typical eutrophic plankton appears to be the efficiency of episodic flushing of the lake during periods of high fluvial discharge sustained by heavy rainfall over the extensive, mountainous catchment. The probabilities that these limnological conditions might fail to deter the development of ‘nuisance’ blooms are briefly assessed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2427.1988.tb00359.x
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  • 3
    Electronic Resource
    Electronic Resource
    Anatomical Organization of Macaque Monkey Striate Visual Cortex (1988)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Neuroscience 11 (1988), S. 253-288 
    Details
    ISSN: 0147-006X
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.ne.11.030188.001345
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  • 4
    Electronic Resource
    Electronic Resource
    Otolith shape discriminates between juvenile Atlantic salmon, Salmo salar L., and brown trout, Salmo trutta L. (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 33 (1988), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Otoliths of Atlantic salmon, Salmo salar L., are more slender than the otoliths of brown trout, Salmo trutta L. Discriminant analysis on otolith measurements of juvenile Atlantic salmon and brown trout from four river systems revealed a discriminant function which distinguished more than 94% of the cases. This function was tested by using data from a fifth river with cohabiting Atlantic salmon and brown trout: all Atlantic salmon and 91 % of the brown trout were correctly classified.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.1988.tb05538.x
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  • 5
    Electronic Resource
    Electronic Resource
    Feeding migration of roach, Rutilus rutilus (L.), in Lake Arungen, Norway (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 30 (1987), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: In the period April–July 1980 we studied the feeding migration and food of roach in a small tributary of the eutrophic Lake Årungen, south-eastern Norway. Tagging experiments revealed a tendency in roach to utilize a specific tributary both for feeding and for spawning. The mean size of roach ascending the tributary in late June and July was significantly larger than the mean size of roach spawning 1–2 months earlier, probably due to higher water discharge in July than in May and June. The experiment indicates two separately motivated migrations involving homing. The roach fed more profitably in the tributary than in the lake, both in terms of food availability and predator avoidance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.1987.tb05759.x
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  • 6
    Electronic Resource
    Electronic Resource
    Differential Mortality Rates of Fin-Clipped and Carlin-Tagged Roach (Rutilus rutilus L.) (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of applied ichthyology 1 (1985), S. 0 
    Details
    ISSN: 1439-0426
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Roach were marked by fin-clipping (N= 15888) or tagged with Carlin-tags (N= 1476) during their spawning migration in two tributaries to Lake Årungen, Norway, in 1980. A total of 1746 of these roach were recaptured during spawning in 1981. The recapture rate of fin-clipped roach was significantly higher than the recapture rate of Carlin-tagged roach, probably due to differential mortality rates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0426.1985.tb00415.x
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  • 7
    Electronic Resource
    Electronic Resource
    Eutrophication (1967)
    [s.l.] : Nature Publishing Group
    Nature 214 (1967), S. 557-558 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Eutrophication means “the process of becoming rich in dissolved nutrients”. Dr. J. W. Lund reviews the sort of problems which will be facing the International Symposium on Eutrophication, to be held in Madison, Wisconsin, during June 11–16, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/214557a0
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  • 8
    Electronic Resource
    Electronic Resource
    An Alternative to Latin Diagnoses (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 454-454 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In Great Britain, at least, there are few men of science with a deep knowledge of Latin. Commonly, assistance has to be obtained in making Latin diagnoses or, what is worse, someone other than the author translates them. The translator may well neither be an algologist nor even a botanist. Even ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/165454b0
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  • 9
    Electronic Resource
    Electronic Resource
    Contributions to our knowledge of British algae (1951)
    Springer
    Hydrobiologia 3 (1951), S. 93-100 
    Details
    ISSN: 1573-5117
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00047581
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  • 10
    Electronic Resource
    Electronic Resource
    A sedimentation technique for counting algae and other organisms (1951)
    Springer
    Hydrobiologia 3 (1951), S. 390-394 
    Details
    ISSN: 1573-5117
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00045562
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