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  • Other Sources  (17)
  • Wiley  (8)
  • Taylor & Francis  (5)
  • Nature Publishing Group
  • 1990-1994
  • 1980-1984  (17)
  • 1981  (8)
  • 1980  (9)
  • 1
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    Applied Regression Analysis (1981)
    Wiley
    In:  New York, 2nd Edition, 709 pp., Wiley, vol. 75, no. 2, pp. 2-203, (ISBN: 3-7643-7143-9)
    Details
    Publication Date: 1981
    Keywords: Correlation ; Data analysis / ~ processing ; fit ; Textbook of mathematics
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
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    The influence of temperature, sex and chela size in the foraging strategy of the shore crab,Carcinus maenas(L.) (1980)
    Taylor & Francis
    In:  Marine Behaviour and Physiology, 7 (1). pp. 15-24.
    Details
    Publication Date: 2018-04-18
    Description: Foraging rate was highly variable among shore crabs of the same size category and for individual crabs from day to day. Possible physiological reasons for this variability are discussed. Shore crab foraging rate, both in terms of mussels eaten per day and energy intake per day, was estimated to be higher at 17°C than at 10°C. The shape of diet curves and their mode for male shore crabs at 17°C closely resembled those for 10°C, indicating that the temperature increase had no effect on their previously demonstrated optimal foraging strategy. Female and certain male shore crabs showed a preference for prey smaller than for other equivalent sized males. These suboptimally feeding male and female crabs attained a relatively higher prédation rate (mussels day‐1), although their energy intake (KJ day‐1) remained lower than that of optimally feeding males. Preferred mussel size, number of mussels eaten per day and energy intake were strongly related to master chela height. The diet curves for female and suboptimally feeding male shore crabs could be explained by these crabs’ proportionately smaller master chelae.
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  • 3
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    Late Wisconsin-Weichselian Mountain Glaciers and Small Ice Caps (1981)
    Wiley
    In:  In: The last great ice sheets. , ed. by Denton, G. H. and Hughes, T. J. Wiley, New York, pp. 179-206. ISBN 0-471-06006-2
    Details
    Publication Date: 2017-04-10
    Type: Book chapter , NonPeerReviewed
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  • 4
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    Components of body pattern displays in the octopus Eledone cirrhosa (Mollusca: Cephalopoda) (1981)
    Taylor & Francis
    In:  Marine Behaviour and Physiology, 8 (2). pp. 135-148.
    Details
    Publication Date: 2020-07-14
    Description: The major light and dark components of body displays are described and classified for the octopus Eledone cirrhosa (Lamarck) under aquarium conditions. Comparisons are made with Octopus vulgaris and Eledone moschata. Upon the basic similarity of white display components in the three species is superimposed a trend of modification. Dark components are less various in Eledone cirrhosa and although the chromatophores are organised with leucophores into chromatic units these are not clearly limited morphologically by “grooves”. The mottle patterns of Eledone seem to be arranged along the longitudinal and latitudinal (radial) axes of the animal, the grade of mottle does not respond to grade of background contrast.
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  • 5
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    Relative departures in July temperatures in northern Canada for the past 6,000 yr (1981)
    Nature Publishing Group
    In:  Nature, 289 (5794). pp. 164-167.
    Details
    Publication Date: 2016-04-11
    Description: There has been concern about recent temperature trends and the future effects of CO2 concentrations in the atmosphere1,2; but instrumental records only cover a few decades to a few centuries and it is essential that proxy data sources, such as pollen spectra from peats and lake sediments, be carefully interpreted as climate records. Several workers have shown statistically significant associations between the modern pollen rain and climatic parameters, an approach that by-passes the recognition of pollen/vegetation units. Statistically defined equations that associate abiotic and biotic elements are called transfer functions. We report here on the application of transfer function equations to nine middle and late Holocene peat and lake sediment sequences from northern Canada (Fig. 1).
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  • 6
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    Particulate organic carbon flux in the oceans-surface productivity and oxygen utilization (1980)
    Nature Publishing Group
    In:  Nature, 288 (5788). pp. 260-263.
    Details
    Publication Date: 2016-03-01
    Description: Organic detritus passing from the sea surface through the water column to the sea floor controls nutrient regeneration, fuels benthic life and affects burial of organic carbon in the sediment record. Particle trap systems have enabled the first quantification of this important process. The results suggest that the dominant mechanism of vertical transport is by rapid settling of rare large particles, most likely of faecal pellets or marine snow of the order of 〉200 μm in diameter, whereas the more frequent small particles have an insignificant role in vertical mass flux4–6. The ultimate source of organic detritus is biological production in surface waters of the oceans. I determine here an empirical relationship that predicts organic carbon flux at any depth in the oceans below the base of the euphotic zone as a function of the mean net primary production rate at the surface and depth-dependent consumption. Such a relationship aids in estimating rates of decay of organic matter in the water column, benthic and water column respiration of oxygen in the deep sea and burial of organic carbon in the sediment record.
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  • 7
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    General Oceanography (1980)
    Wiley
    In:  Wiley, New York, USA, 626 pp. 2nd revised edition
    Details
    Publication Date: 2013-05-17
    Type: Book , NonPeerReviewed
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  • 8
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    Growth of Todarodes sagittatus(Lamarck) (Cephalopoda, Ommastrephidae) from the northeast Atlantic, based on counts of statolith growth rings (1981)
    Taylor & Francis
    In:  Sarsia, 66 (1). pp. 53-57.
    Details
    Publication Date: 2020-05-28
    Description: Growth is described from size-at-age data. Size-at-age was determined from counts of daily growth rings on the statoliths of 65 individuals. A mean growth rate of 2 mm/day was calculated for a dorsal mantle length range of 15-52 cm. The month in which each individual hatched was back-calculated from the age data. A histogram of the frequency of hatching through the year is presented and shows peaks in May and October.
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  • 9
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    Destribution, abundance and life cycles of Oligochaeta from the marine hygropsammal, with special reference to the Phallodrilinae (Tubificidae) (1980)
    Wiley
    In:  Internationale Revue der gesamten Hydrobiologie und Hydrographie, 65 (6). pp. 835-848.
    Details
    Publication Date: 2017-05-31
    Description: Tubificid and enchytraeid oligochaetes are common members of the interstitial fauna of sandy beaches. Their abundance dynamics, life cycles and distribution patterns were investigated at two beaches on the western Baltic Sea and at a North Sea beach (Isle of Sylt). Populations of 115,000 ind./m2 were found at protected Baltic beaches. Reproduction of the tubificids, Phallodrilus monospermathecus and Spiridion insigne takes place within a well defined breeding period once a year. The market horizontal and vertical distribution patterns of various tubificid and enchytraeid species are elucidated by preference reactions to several physiographic parameters, such as oxygen and water content of the sediment, and salinity.
    Type: Article , PeerReviewed
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  • 10
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    Glacial and interglacial wind regimes over the eastern subtropical Atlantic and North-West Africa (1981)
    Nature Publishing Group
    In:  Nature, 293 (5829). pp. 193-196.
    Details
    Publication Date: 2016-09-02
    Description: Analysis of aeolo-marine dust deposits in the subtropical eastern Atlantic enables the strength of the major wind patterns during the late Quaternary to be evaluated and gives an insight into the climate of North Africa.
    Type: Article , PeerReviewed
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  • 11
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    Stomach contents analysis-a review of methods and their application (1980)
    Wiley
    In:  Journal of Fish Biology, 17 (4). pp. 411-429.
    Details
    Publication Date: 2018-05-16
    Description: Methods for analysing fish stomach contents are listed and critically assessed with a view to their suitability for determining dietary importance—this term is defined. Difficulties in the application of these methods are discussed and, where appropriate, alternative approaches proposed. Modifications which have practical value are also considered. The necessity of linking measurements of dietary importance to stomach capacity is emphasized and the effects of differential digestion upon interpretation of stomach contents outlined. The best measure of dietary importance is proposed as one where both the amount and bulk of a food category are recorded.
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  • 12
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    The age of the Drake Passage (1980)
    Taylor & Francis
    In:  Alcheringa: An Australasian Journal of Palaeontology, 4 (4). pp. 289-297.
    Details
    Publication Date: 2016-08-08
    Description: The distribution of benthic foraminifera in Miocene deposits of the continental margin of southeastern South America is compared with that in the Recent. The comparison indicates that Miocene zoogeographic boundaries were located in higher latitudes than at present, suggesting that the climate at that time was warmer than now. In the Pliocene, temperatures were lower than at present. This signifies that a considerable decrease in water temperature took place in the latest Miocene or at the Miocene/Pliocene boundary in the southwestern Atlantic. The main reason for this drop in temperature was the opening of the Drake Passage and the establishment of the Circumpolar Antarctic Current and a branch — the Malvin Current. The opening resulted from strong orogenic movements, in the latest Miocene, which created the main part of the Andes. Prior to the opening of the passage, the anticyclonic (counterclockwise) gyre of surface currents in the South Atlantic was much larger and warm Brazilian waters reached higher latitudes. The Austral Strait, connecting the Pacific and Atlantic Oceans, may have existed from the Cretaceous in the southern part of South America, but its location and character did not permit the establishment of the true Circumpolar Antarctic Current. The Austral Strait was closed simultaneously with the opening of the Drake Passage.
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  • 13
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    Food, feeding ecology and ecological segregation of seabirds at South Georgia (1980)
    Wiley
    In:  Biological Journal of the Linnean Society, 14 (1). pp. 103-131.
    Details
    Publication Date: 2016-09-09
    Description: At the sub-Antarctic island of South Georgia 25 of the 29 breeding species are seabirds. Fifteen of these have recently been studied in some detail. By examining the timing of their breeding seasons and their diet and feeding ecology (especially feeding techniques and potential foraging ranges), the nature of their ecological isolating mechanisms, and in particular the way in which they partition the resources of the marine environment, are reviewed. Although breeding season adaptations occur (winter breeding in Wandering Albatross and King Penguin; out of phase breeding in two species-pairs of small petrels) these are less important than dillerences in food and feeding ecology. There is a fundamental distinction between the niche of pursuit-diving species (mainly penguins) and the remainder which are basically surface-feeders. The two abundant krill-eating penguins show clear differences in feeding zones. Three albatrosses and a petrel feed mainly on squid and there are differences in both the species and size of the prey of each. The remaining seabirds chiefly take krill (although the giant petrels are extensive scavengers and some smaller petrels specialize on copepods) and utilize different feeding methods and areas to do so. Various adaptations related to inshore and offshore feeding zones are discussed. Although most species possess a combination of ecological isolating mechanisms additional evidence for the particular importance of dietary differences is presented.
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  • 14
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    Global sedimentary mass balance and sea level changes (1981)
    Wiley
    In:  In: The oceanic lithosphere. , ed. by Emiliani, C. The Sea, 7 . Wiley, New York, pp. 1618-1684. ISBN 0-471-02870-3
    Details
    Publication Date: 2018-02-07
    Type: Book chapter , NonPeerReviewed
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  • 15
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    Annual cycle of sedimentation in relation to plankton ecology in western Kiel Bight (1980)
    Taylor & Francis
    In:  Ophelia, Suppl. 1 . pp. 65-76.
    Details
    Publication Date: 2019-02-27
    Description: The annual cycle of sedimentation in Kiel Bight is described from data collected over 3 years with multisample sediment traps. Settling matter was collected from 2 depths (15 and 18 m) in a 20 m water column at 2-4 day intervals. The pattern of sedimentation was alike each year, although considerable differences in the quantity collected were present. Resuspended sediment and primary settling matter originating from the pelagic system (phytoplankton cells, detritus) were the main contributors to the particulate material collected by the traps. High sedimentation rates from November to March were due to resuspended sediment. The composition of this material differed from that of bulk surface sediment due to the selective effect of water movement during resuspension. Peaks in sedimentation of primary material were observed in spring and autumn when the pelagic food web is poorly developed. From May to August sedimentation rates were low although this is the period of high primary production with large standing stocks of plankton. Apparently, organic substance produced here is consumed within the pelagic food web, as herbivore and carnivore populations are well developed and turnover time of particles is short. Sedimentation rates of primary material are estimated to be in the range of 50-65 g C · m-2 · yr-', but in reality year to year differences are probably greater than indicated by this range.
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  • 16
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    The first fossil cephalopod statoliths to be described from Europe (1980)
    Nature Publishing Group
    In:  Nature, 287 (5783). pp. 628-630.
    Details
    Publication Date: 2016-11-15
    Description: Statoliths of cephalopods are small, hard calcareous stones which lie within the cartilaginous skulls of octopods, sepioids and teuthoids1. Fossil statoliths, clearly belonging to genera which are alive today, have previously been described from 11 Cenozoic deposits spanning from the Eocene to the Pleistocene in North America2–5. Such statoliths are of particular interest because they provide a means of studying the evolution of living cephalopod groups which have no calcareous shells, including the cosmopolitan and numerous teuthoids and octopods. Here, the first cephalopod statoliths to be recognized in European deposits are described and identified as Loligo sp. They are compared with the North American fossil Loligo species and statoliths removed from the two living Loligo species of Europe.
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  • 17
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    Seismicity surveys with ocean bottom seismographs off western Canada (1981)
    AGU (American Geophysical Union) | Wiley
    In:  Journal of Geophysical Research: Solid Earth, 86 (B5). pp. 3867-3880.
    Details
    Publication Date: 2021-11-03
    Description: Three arrays of ocean bottom seismographs have been deployed to study the seismicity at the northern end of the Juan de Fuca ridge system off western Canada. Nearly 100 events were located with estimated accuracies generally better than ±10 km, all lying on or near the en echalon ridge-transform fault plate boundaries as defined in this area by the magnetic anomalies, the seafloor morphology and by other geophysical data. The depths of 12 events were determined to lie between 2 and 6 km below the top of the crust. The seismograms exhibit clear P and S wave arrivals along with phases that involve P to S and sometimes S to P conversion probably at the base of the sediments beneath the instruments. The event magnitudes have been estimated from signal duration using four calibration events that were well recorded by a land station. The magnitude estimates permit the determination of rough magnitude-frequency of occurrence relations over the magnitude range of 1 to 3 that are in surprisingly good agreement with the recurrence relations for the area at larger magnitudes from 75 years of land station data. The mean P wave velocity in the uppermost mantle from the earthquake data recorded by the sea floor arrays is 7.6 km s-1 and the mean Vp/Vs ratio is 1.71 or a Poisson's ratio of 0.24.
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