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  • 1975-1979  (173,587)
  • 1977  (173,587)
Collection
Language
Year
  • 1
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    PANGAEA
    In:  Supplement to: MacDougall, J Douglas (1977): Uranium in marine basalts: Concentration, distribution and implications. Earth and Planetary Science Letters, 35(1), 65-70, https://doi.org/10.1016/0012-821X(77)90029-2
    Publication Date: 2024-06-26
    Description: The uranium content of glass from chilled margins of oceanic tholeiitic basalt flows is generally 〈0.1 ppm, even for old samples with highly altered crystalline interiors. Such low values represent the original whole rock concentrations, although subsequent to eruption low-temperature weathering has added uranium, and other elements, to the crystalline portions of these basalts. Consideration of the K/U ratios of altered samples suggests that basalt weathering may provide the major oceanic sink for these two elements.
    Keywords: 16-163; 18-177A; 2-10; 22-211; 22-213; 22-215; 23-220; 24-231; 24-236; 24-238; 25-240; 34-319; 34-320; 5-32; 5-36; 5-37; 5-39; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Indian Ocean//BASIN; Indian Ocean//FRACTURE ZONE; Indian Ocean/Arabian Sea/HILL; Indian Ocean/Gulf of Aden/BASIN; Leg16; Leg18; Leg2; Leg22; Leg23; Leg24; Leg25; Leg34; Leg5; North Atlantic/CONT RISE; North Pacific/CONT RISE; North Pacific/HILL; North Pacific/PLAIN; North Pacific/RIDGE; South Pacific/BASIN
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 2
    Publication Date: 2024-06-26
    Keywords: ADEPD; Atlantic Data Base for Exchange Processes at the Deep Sea Floor; BC; Box corer; Cape Blanc; CapeBlanc_DCSN; DEPTH, sediment/rock; Electron transport system activity of oyxgen
    Type: Dataset
    Format: text/tab-separated-values, 9 data points
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  • 3
    Publication Date: 2024-06-26
    Keywords: ADEPD; Atlantic Data Base for Exchange Processes at the Deep Sea Floor; BC; Box corer; Cape Blanc; CapeBlanc_176; DEPTH, sediment/rock; Electron transport system activity of oyxgen
    Type: Dataset
    Format: text/tab-separated-values, 9 data points
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  • 4
    Publication Date: 2024-06-26
    Keywords: ADEPD; Atlantic Data Base for Exchange Processes at the Deep Sea Floor; BC; Box corer; Cape Blanc; CapeBlanc_E; DEPTH, sediment/rock; Electron transport system activity of oyxgen
    Type: Dataset
    Format: text/tab-separated-values, 7 data points
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  • 5
    Publication Date: 2024-06-26
    Keywords: ADEPD; Atlantic Data Base for Exchange Processes at the Deep Sea Floor; BC; Box corer; Cape Blanc; CapeBlanc_F; DEPTH, sediment/rock; Electron transport system activity of oyxgen
    Type: Dataset
    Format: text/tab-separated-values, 7 data points
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  • 6
    Publication Date: 2024-06-26
    Keywords: ADEPD; Atlantic Data Base for Exchange Processes at the Deep Sea Floor; BC; Box corer; Cape Blanc; CapeBlanc_H; DEPTH, sediment/rock; Electron transport system activity of oyxgen
    Type: Dataset
    Format: text/tab-separated-values, 8 data points
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  • 7
    Publication Date: 2024-06-26
    Keywords: ADEPD; Atlantic Data Base for Exchange Processes at the Deep Sea Floor; BC; Box corer; Cape Blanc; CapeBlanc_L; DEPTH, sediment/rock; Electron transport system activity of oyxgen
    Type: Dataset
    Format: text/tab-separated-values, 9 data points
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  • 8
    Publication Date: 2024-06-26
    Keywords: ADEPD; Atlantic Data Base for Exchange Processes at the Deep Sea Floor; BC; Box corer; Cape Blanc; CapeBlanc_M; DEPTH, sediment/rock; Electron transport system activity of oyxgen
    Type: Dataset
    Format: text/tab-separated-values, 9 data points
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  • 9
    Publication Date: 2024-06-26
    Keywords: ADEPD; Atlantic Data Base for Exchange Processes at the Deep Sea Floor; Cape Blanc; CapeBlanc_N; DEPTH, sediment/rock; Electron transport system activity of oyxgen; van Veen Grab; VGRAB
    Type: Dataset
    Format: text/tab-separated-values, 9 data points
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  • 10
    Publication Date: 2024-06-26
    Keywords: ADEPD; Atlantic Data Base for Exchange Processes at the Deep Sea Floor; Cape Blanc; CapeBlanc_O; DEPTH, sediment/rock; Electron transport system activity of oyxgen; van Veen Grab; VGRAB
    Type: Dataset
    Format: text/tab-separated-values, 6 data points
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  • 11
    Publication Date: 2024-06-26
    Keywords: ADEPD; Atlantic Data Base for Exchange Processes at the Deep Sea Floor; BC; Box corer; Cape Blanc; CapeBlanc_P; DEPTH, sediment/rock; Electron transport system activity of oyxgen
    Type: Dataset
    Format: text/tab-separated-values, 9 data points
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  • 12
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    PANGAEA
    In:  Supplement to: Christensen, John P; Packard, Ted T (1977): Sediment metabolism from the northwest African upwelling system. Deep-Sea Research, 24(4), 331-343, https://doi.org/10.1016/0146-6291(77)94000-0
    Publication Date: 2024-06-26
    Description: Sediments off northwest Africa were assayed for activities of the respiratory electron transport system (ETS) and for primary amino nitrogen. ETS activities were used to compute respiratory oxygen consuption, carbon oxidation, and nitrate reduction rates. Activities were correlated with depth of the water column, and their longshore distribution resembled that of euphotic zone phytoplankton productivity. Protein concentrations were closely correlated with ETS activities. Carbon biomass was calculated from protein and compared with other computed values. The carbon oxidation rate accounted for 13 % of the region's primary production.
    Keywords: ADEPD; Atlantic Data Base for Exchange Processes at the Deep Sea Floor; BC; Box corer; Cape Blanc; CapeBlanc_176; CapeBlanc_DCSN; CapeBlanc_E; CapeBlanc_F; CapeBlanc_H; CapeBlanc_L; CapeBlanc_M; CapeBlanc_N; CapeBlanc_O; CapeBlanc_P; van Veen Grab; VGRAB
    Type: Dataset
    Format: application/zip, 11 datasets
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  • 13
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    In:  Supplement to: Neuschütz, D; Scheffler, U; Junghauss, H (1977): Verfahren zur Aufarbeitung von Manganknollen durch Schwefelsäuredrucklaugung = Method for the processing of manganese nodules by sulfuric acid pressure leaching. Erzmetall, 30(2), 61-67, hdl:10013/epic.49444.d001
    Publication Date: 2024-06-26
    Description: A complete processing method has been experimentally developed at laboratory scale for the future extraction of metlas from manganese nodules. The digestion of the nodules is performed by pressured sulfuric acid leaching at 200° C., nickel, copper, cobalt, and zinc being selectively dissolved in solution along with iron and manganese. The subsequent separation and recovery of the valuable metals is carried out with a combination of ion exchange and precipitation processes. Estimates for this methodology based on an annual throughput of 2 million tonnes of manganese nodules should lead to the production of about 24000 tonnes of nickel, 20000 tonnes of copper, and 3000 tonnes of cobalt and zinc. The authors conclude that, despite all uncertainty regarding the metal processing costs and the future metal prices, the exploitation of manganese nodules is economically viable.
    Keywords: Aluminium; Calcium; Cobalt; Copper; Deposit type; DEPTH, sediment/rock; Description; Dredge; DRG; Event label; Grab; GRAB; Identification; Iron; Location 10; Location 6; Magnesium; Manganese; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; Sample code/label; Sodium; VA-05/1; VA-05/1_06; VA-05/1_10; VA-08/1; VA-08/1-51GB; Valdivia (1961); Wet chemistry; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 42 data points
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  • 14
    Publication Date: 2024-06-26
    Keywords: ADEPD; Atlantic Data Base for Exchange Processes at the Deep Sea Floor; BC; Box corer; Calculated from profiles, ex situ; Cape Blanc; CapeBlanc_176; CapeBlanc_DCSN; CapeBlanc_E; CapeBlanc_F; CapeBlanc_H; CapeBlanc_L; CapeBlanc_M; CapeBlanc_N; CapeBlanc_O; CapeBlanc_P; DEPTH, sediment/rock; Elevation of event; Event label; Latitude of event; Longitude of event; Oxygen, flux, sediment oxygen demand; van Veen Grab; VGRAB
    Type: Dataset
    Format: text/tab-separated-values, 16 data points
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  • 15
    Publication Date: 2024-06-26
    Keywords: 16-163; 18-177A; 2-10; 22-211; 22-213; 22-215; 23-220; 24-231; 24-236; 24-238; 25-240; 34-319; 34-320; 5-32; 5-36; 5-37; 5-39; Age, maximum/old; Age, minimum/young; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Estimated; Event label; Fission-track; Glomar Challenger; Indian Ocean//BASIN; Indian Ocean//FRACTURE ZONE; Indian Ocean/Arabian Sea/HILL; Indian Ocean/Gulf of Aden/BASIN; Latitude of event; Leg16; Leg18; Leg2; Leg22; Leg23; Leg24; Leg25; Leg34; Leg5; Longitude of event; North Atlantic/CONT RISE; North Pacific/CONT RISE; North Pacific/HILL; North Pacific/PLAIN; North Pacific/RIDGE; Sample code/label; South Pacific/BASIN; Uranium; Uranium, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 216 data points
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  • 16
    Publication Date: 2024-06-26
    Keywords: 22-213; 5-39; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Event label; Glomar Challenger; Indian Ocean//BASIN; Leg22; Leg5; North Pacific/HILL; Potassium/Uranium ratio; Potassium oxide; Sample code/label; Uranium
    Type: Dataset
    Format: text/tab-separated-values, 16 data points
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  • 17
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    PANGAEA
    In:  Supplement to: O'Nions, R K; Hamilton, P J; Evensen, N M (1977): Variations in 143Nd/144Nd and 87Sr/86Sr ratios in oceanic basalts. Earth and Planetary Science Letters, 34(1), 13-22, https://doi.org/10.1016/0012-821X(77)90100-5
    Publication Date: 2024-05-15
    Description: 143Nd/144Nd ratios have been determined on 37 samples of oceanic basalt, with a typical precision of +/- 2-3 * 10**-5 (2 sigma). Ocean island and dredged and cored submarine basalts are included for which reliable measurements of 87Sr/86Sr ratios exist in the literature or have been measured as part of this study. A strong negative correlation exists between 143Nd/144Nd and 87Sr/86Sr ratios in basalts from Iceland and the Reykjanes Ridge, but such a clear correlation does not exist for samples from the Hawaiian Islands. However, when other ocean island basalts from the Atlantic are included there is an overall correlation between these two parameters. Increases and decreases in Rb/Sr in oceanic basalt source regions have in general been accompanied by decreases and increases respectively in Sm/Nd ratios. The compatibility of the data with single-stage models is assessed and it is concluded that enrichment and depletion events, which are consistent with transfer of silicate melts, are responsible for the observed variation.
    Keywords: 37-332A; 37-332B; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg37; North Atlantic/VALLEY
    Type: Dataset
    Format: application/zip, 3 datasets
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  • 18
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    In:  Supplement to: Donaldson, Colin H; Brown, Roy W (1977): Refractory megacrysts and magnesium-rich melt inclusions within spinel in oceanic tholeiits: indicators of magma mixing and parental magma composition. Earth and Planetary Science Letters, 37(1), 81-89, https://doi.org/10.1016/0012-821X(77)90148-0
    Publication Date: 2024-05-15
    Description: Refractory megacrysts of olivine, plagioclase, chromian diopside and Cr-Al spinel, which were not in equilibrium with the host oceanic tholeiite on eruption, are present in samples from several dredge sites and DSDP drill sites in the Atlantic and Pacific Oceans. They have multiple origins: (1) cognate or accidental mantle fragments; (2) relict fragments from fractional crystallization of parental liquids considerably more primitive than oceanic tholeiite; and most commonly (3) the fractional crystallization products of such liquids mixed with oceanic tholeiite magma. Melt inclusions in chrome-spinel phenocrysts provide evidence for this postulated Mg- and Ca-rich magma which has counterparts in the Scottish Tertiary Province and in west Greenland.
    Keywords: 37-332A; 37-332B; 37-335; Aluminium oxide; Calcium oxide; Chromium; Chromium(III) oxide; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Enstatite; Event label; Ferrosilite; Glomar Challenger; Iron oxide, Fe2O3; Iron oxide, FeO; Latitude of event; Leg37; Lithology/composition/facies; Longitude of event; Magnesium number; Magnesium oxide; Manganese oxide; North Atlantic; North Atlantic/VALLEY; Potassium oxide; Sample code/label; Silicon dioxide; Sodium oxide; Titanium dioxide; Wollastonite
    Type: Dataset
    Format: text/tab-separated-values, 46 data points
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  • 19
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    PANGAEA
    In:  Supplement to: Moritani, Tomoyuki; Maruyama, Shuji; Nohara, M; Matsumoto, K; Ogitsu, T; Moriwaki, H (1977): Description, classification and distribution of manganese nodules. In: Mizuno, A (Ed) Deep sea mineral resources investigation in the central-eastern part of the central Pacific Basin, January-March, 1976 (GH76-1 Cruise), Geological Survey of Japan, Cruise Report, 136-158, https://www.gsj.jp/data/cruise-rep/08-14.pdf
    Publication Date: 2024-05-15
    Description: Nodule samples obtained were described and studied on board for 1) observation of occurrence and morphology in and outside samplers, size classification, measurement of weight and calculation of population density (kg/m2); 2) photographing whole nodules on the plate marked with the frames of unit areas of both 0cean-70 (0.50 m2) and freefall grab (0.13 m2), and that of typical samples on the plate with a 5 cm grid scale: 3) observation of internal structures of the nodules on cut section; and 4) determination of mineral composition by X-ray diffractometer. The relation between nodule types and geological environment or chemical composition was examined by referring to other data of related studies, such as sedimentology. acoustic survey, and chemical analysis.
    Keywords: Calculated from mass/volume; Density; DEPTH, sediment/rock; Dredge, box; DRG_B; Event label; FFGR; Figure; Free-fall grab; GH76-1; GH76-1-C6; GH76-1-C7; GH76-1-C8(N); GH76-1-D137(N); GH76-1-FG10-2; GH76-1-FG1-2; GH76-1-FG12-1; GH76-1-FG12-2; GH76-1-FG15-1; GH76-1-FG15-2; GH76-1-FG16-1; GH76-1-FG16-2; GH76-1-FG17-1; GH76-1-FG17-2; GH76-1-FG19-1; GH76-1-FG19-2; GH76-1-FG20-2; GH76-1-FG21-1; GH76-1-FG21-2; GH76-1-FG22-1; GH76-1-FG22-2; GH76-1-FG23-1; GH76-1-FG25-1; GH76-1-FG25-2; GH76-1-FG27-1; GH76-1-FG27-2; GH76-1-FG28-1; GH76-1-FG28-2; GH76-1-FG29-1; GH76-1-FG29-2; GH76-1-FG30-1; GH76-1-FG30-2; GH76-1-FG31-1; GH76-1-FG31-2; GH76-1-FG32-1; GH76-1-FG32-2; GH76-1-FG32-3; GH76-1-FG32-4; GH76-1-FG32-5; GH76-1-FG32-6; GH76-1-FG32-7; GH76-1-FG32-8; GH76-1-FG4-2; GH76-1-FG5-1; GH76-1-FG5-2; GH76-1-FG6-1; GH76-1-FG6-2; GH76-1-FG7-1; GH76-1-FG7-2; GH76-1-FG8-1; GH76-1-FG8-2; GH76-1-FG9-1; GH76-1-FG9-2; GH76-1-G169; GH76-1-G171; GH76-1-G172; GH76-1-G173; GH76-1-G174; GH76-1-G175; GH76-1-G176; GH76-1-G181; GH76-1-G182; GH76-1-G183; GH76-1-G184; GH76-1-G185-1; GH76-1-G186; GH76-1-G187; GH76-1-G188; GH76-1-G189; GH76-1-G190; GH76-1-G191; GH76-1-G193; GH76-1-G194; GH76-1-G195; GH76-1-G196; GH76-1-P67; GH76-1-P72; GH76-1-P73; Hakurei-Maru (1974); Identification; Mass, netto; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Nodules, mass abundance; O70; Ocean 70 grab; Pacific Ocean; PC; Photo/Video; Piston corer; PV; Shape; Specimen count; Station 403; Station 405; Station 406; Station 406A; Station 407; Station 407A; Station 407A-2; Station 408; Station 408A; Station 408A-1; Station 409; Station 410; Station 411; Station 412; Station 414; Station 414A; Station 414A-1; Station 414A-2; Station 414A-3; Station 417; Station 418; Station 419; Station 420; Station 421; Station 422; Station 423; Station 424; Station 425; Station 426; Station 427; Station 429; Station 430; Station 431; Station 432; Station 433
    Type: Dataset
    Format: text/tab-separated-values, 637 data points
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  • 20
    Publication Date: 2024-05-15
    Description: DSDP Leg 337 was planned as an attemp at deep penetration of the igneous section of the oceanic crust on the western flank of the FAMOUS (Franco- American Mid-Ocean Undersea Study) area of the Mid-Atlantic Ridge at 36°N. Site 332 is located in Deep Drill Valley approximately 30 km west of the axis of the Mid-Atlantic Ridge at 36°52'N latitude. The principal goal at this site was deep penetration into layer 2 of the ocean crust by multiple re-entry. Site 334 was drilled on a steep east-facing slope in a small, deep basin near the middle of magnetic anomaly 5. In this area, breccias with gabbro and peridotite clasts in a nannofossil-foram ooze matrix are interlayered with the plutonic rocks and may reflect exposure of a melange in or near the Median Valley of the Mid- Atlantic Ridge prior to burial by later basaltic extrusions.
    Keywords: 37-332B; 37-334; Comment; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; Event label; Glomar Challenger; Identification; Leg37; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Atlantic/BASIN; North Atlantic/VALLEY; Position; Quantity of deposit; Sample code/label; Sediment type; Substrate type; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 18 data points
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  • 21
    Publication Date: 2024-05-15
    Keywords: -; 37-332A; 37-332B; Calculated; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Event label; Glomar Challenger; Isotope ratio mass spectrometry; Leg37; Neodymium-143/Neodymium-144 ratio; Neodymium-143/Neodymium-144 ratio, error; North Atlantic/VALLEY; Samarium-147/Neodymium-144 ratio; Sample code/label; Strontium-87/Strontium-86 ratio; Strontium-87/Strontium-86 ratio, error
    Type: Dataset
    Format: text/tab-separated-values, 36 data points
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  • 22
    Publication Date: 2024-05-08
    Description: The Aminoil Group drilled a 10,000 ft - well a few kilometers off the Krakatau volcano in 1973. The well bottomed in Pliocene sediments after penetrating a more than 8,000 ft thick Upper Pliocene section of mainly claystones with interbedded sand-, siltstones and pyroclastics. On the basis of temperature surveys and BHT's measured during logging, a static formation temperature in excess of 450° F was extrapolated for the bottom of the hole. Tue high temperatures caused some deterioration in the mud properties, but otherwise no serious drilling problems. Owing to overpressures a high salinity oil mud and controlled drilling had to be employed. The well was P&A because no economic hydrocarbon accumulations could be expected in the high temperature regimes.
    Type: Conference or Workshop Item , PeerReviewed
    Format: text
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  • 23
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    Universität Göttingen,Abteilung Bodenphysik
    In:  Universität Göttingen
    Publication Date: 2024-04-20
    Description: research
    Keywords: Wald Ökosystemen ; Schwermetallen ; Forest Sites ; Western Himalaya ; Economic Plantations
    Language: German
    Type: doc-type:book
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  • 24
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    Universität Göttingen,Abteilung Bodenphysik
    In:  Universität Göttingen
    Publication Date: 2024-04-20
    Description: research
    Keywords: Zur chemischen Untersuchung ; Boden- und Wasserproben ; Universität Göttingen
    Language: German
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  • 25
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    Universität Göttingen,Abteilung Bodenphysik
    In:  Universität Göttingen
    Publication Date: 2024-04-20
    Description: research
    Keywords: VORAUSDONGUNG ; SOMMERWEIZEN ; N-GABEN ; ZWISCHENFRUCHT RAPS
    Language: German
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  • 26
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    Universität Göttingen,Abteilung Bodenphysik
    In:  Universität Göttingen
    Publication Date: 2024-04-20
    Description: research
    Keywords: Hydrologie ; Entstehung ; Moor ; Hydrologie Solling ; Moorlandschaft ; Solling
    Language: German
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  • 27
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    Universität Göttingen,Abteilung Bodenphysik
    In:  Universität Göttingen
    Publication Date: 2024-04-20
    Description: research
    Keywords: Pflanzenökologie ; Autökologie ; Düngung ; Licht ; Fichtenwald ; Fichte
    Language: German
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  • 28
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    PANGAEA
    In:  Supplement to: Piper, David Z; Williamson, M E (1977): Composition of Pacific Ocean ferromanganese nodules. Marine Geology, 23(4), 285-303, https://doi.org/10.1016/0025-3227(77)90036-6
    Publication Date: 2024-04-16
    Description: Bulk composition of ferromanganese nodules from the pelagic environment of the Pacific Ocean is apparently related to nodule-growth rate, sediment-accumulation rate, and biologic productivity in the overlying seawater. Nodules with a high Mn/Fe ratio and high Ni and Cu concns tend to occur in areas where primary productivity in the surface layer of the ocean is high and the sediment accumulation rate low. They may have a Mn/Fe ratio as low as one and accrete at rates as low as 1 mm per 1 million years. Nodules with a larger Mn/Fe ratio apparently have growth rates that are greater by as much as a factor of 10.
    Keywords: 2P-50; ABR_Cruise7; ABR7_375-G; Agassiz; AMPH-007D; AMPH01AR; AMPH02AR-007D; AMPHITRITE; ANTIPODE; Anton Bruun; ANTP04MV-058D; ANTP-058D; Argo; Barium; Chromium; Cobalt; Copper; Deposit type; DEPTH, sediment/rock; DODO; DODO-113D; DOWNWIND-H; Dredge; Dredge, chain bag; Dredge, rock; DRG; DRG_C; DRG_R; DWHD47; DWHD72; Elevation of event; Event label; FANB01BD; FANBD-25D; FANFARE-B; Grab; GRAB; GSS_537_551; Horizon; Identification; Indian Ocean; Inductively coupled plasma atomic emission spectroscope (ICP-AES); Insoluble material; Iron; Latitude of event; Longitude of event; Manganese; Melville; Method/Device of event; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Northern_Holiday; North-West Pacific Ocean; NTHL02HO-010PH; NTHL-10; Pacific Ocean; PROA; PROA-072D; Prospector; Prospector-63; SAN_JUAN_1963; SCAN; SCAN-035D; SCAN04AR-035D; Scandium; SNJ-DH6; SNJ-DH9; Spencer F. Baird; STYX_I; STYX01AZ; STYX01AZ-003FF; STYXI-3FF; Thorium; Western Pacific Ocean; Wired profile sonde; WP; X-ray fluorescence (XRF); Zinc
    Type: Dataset
    Format: text/tab-separated-values, 198 data points
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  • 29
    Monograph available for loan
    Monograph available for loan
    Moskva : Izdatel'stvo "Nauka"
    Call number: AWI G3-24-95699
    Description / Table of Contents: Translation of abstract: The book summarizes and analyzes information about the mechanical properties of snow. Particular attention is paid to describing the patterns of deformation and destruction of snow and assessing the parameters characterizing its compaction, creep and resistance to destruction. The book is intended for a wide range of researchers of the Earth's cryosphere and engineers involved in forecasting avalanches and protecting against them, using snow for engineering purposes and combating the harmful effects of snow on human economic activity.
    Description / Table of Contents: В книге обобщены и проанализированы сведения о механических свойствах снега. Особое внимание уделено описанию закономерностей деформирования и разрушения снега и оценке параметров, характеризующих его уплотнение, ползучесть и сопротивление разрушению. Книга предназначена для широкого круга исследователей криосферы Земли и инженеров, занимающихся прогнозированием снежных лавин и защитой от них, использованием снега в инженерных целях и борьбой с вредным влиянием снега на хозяйственную деятельность человека.
    Type of Medium: Monograph available for loan
    Pages: 125 Seiten , Illustrationen
    Language: Russian
    Note: Translation of TABLE OF CONTENTS Preface Chapter 1. Some physical properties of snow Formation of ice crystals in the atmosphere Formation of snow cover Density and Porosity Breathability Water holding capacity and water permeability Heat capacity Latent heat of fusion and sublimation of ice Water vapor diffusion Thermal conductivity Metamorphism Chapter 2. Patterns of deformation and destruction of snow Deformation of ice crystals Interaction of snow grains Basic patterns of deformation and destruction of snow Chapter 3. Elastic properties of snow Propagation of elastic waves in snow Elastic deformations under static and dynamic loads Chapter 4. Snow compaction Compression seal. Snow compaction during compaction Snow compaction under short-term and vibration loads Techniques for artificial snow compaction Chapter 5. Snow Creep Shear creep Creep under uniaxial compression Tensile creep Creep under complex stress conditions Stress relaxation Creep under variable loads Chapter 6. Strength characteristics of snow Snow destruction Shear Strength Tensile strength Uniaxial compressive strength Snow hardness Bearing capacity of snow cover Chapter 7. Surface friction and snow adhesion Sliding friction Static friction and adhesion Chapter 8, Stability of snow cover on mountain slopes Compaction and flow of snow cover Limit equilibrium of snow cover on a flat slope Interaction of snow cover on a slope with obstacles Limit equilibrium of snow cover on a slope with complex orography Violation of the stability of snow cover and the occurrence of pavements Artificial retention of snow cover on mountain slopes Conclusion Literature , ОГЛАВЛЕНИЕ Предисповие Гпава 1. Некоторые физические свойства снега Образование кристаплов льда в атмосфере Формирование снежного покрова Плотность и пористость Воздухопроницаемость Водоудерживающая способность и водопроницаемость Теплоемкость Скрытая теплота плавления и возгонки льда Диффузия водяного пара Теплопроводность Метаморфизм Глава 2. Закономерности деформирования и разрушения снега Деформирование кристаплов льда Взаимодействие зерен снега Основные закономерности деформирования и разрушения снега Глава 3. Упругие свойства снега Распространение упругих волн в снеге Упругие деформации при статических и динамических нагрузках Глава 4. Уплотнение снега Компрессионное уплотнение. Уплотнение снега в процессе попзучести Уплотнение снега под действием кратковременных и вибрационных нагрузок Приемы искусственного уплотнения снега Глава 5. Ползучесть снега Ползучесть при сдвиге Ползучесть при одноосном сжатии Ползучесть при растяжении Ползучесть в условиях сложного напряженного состояния Релаксация напряжений Ползучесть при переменных нагрузках Глава 6. Прочностные характеристики снега Разрушение снега Прочность при сдвиге Прочность при растяжении Прочность при одноосном сжатии Твердость снега Несущая способность снежного покрова Глава 7. Поверхностное трение и адгезия снега Трение скольжения Статическое трение и адгезия Глава 8, Устойчивость снежного покрова на склонах гор Уплотнение и течение снежного покрова Предельное равновесие снежного покрова на ровном склоне Взаимодействие снежного покрова на склоне с препятствиями Предельное равновесие снежного покрова на склоне со сложной орографией Нарушение устойчивости снежного покрова и возникновение павин Искусственное удержание снежного покрова на склонах гор Заключение Литературе , In kyrillischer Schrift
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    Branch Library: AWI Library
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  • 30
    Publication Date: 2024-03-06
    Description: Die Humifizierungswechsel nordwesteuropäischer Hochmoore sind als Schwarztorf-Weißtorf-Kontakte‚ Rekurrenzflächen oder "WEBERscher Grenzhorizont" bekannt. Eine ähnliche Erscheinung wurde auf Gough Island im Südatlantik entdeckt. In den dortigen terrainbedeckenden Mooren gibt es ebenfalls einen Schwarztorf-Weißtorf-Kontakt. Diese terrainbedeckenden Moore von Gough Island sind nährstoffreicher als unsere nordwesteuropäischen Hochmoore. Ursache dieses Phänomens ist wahrscheinlich die Nährstoffanreicherung durch den Kot der zahlreichen Seevögel.
    Description: The changes of humification of North-West European bogs are known as dark peat/light peat contacts, recurrence horizons or "WEBERscher Grenzhorizont". A similar phenomenon has been discovered on Gough Island in the South Atlantic. There is also dark peat/light peat contact in the blanket bogs over there. These blanket bogs on Gough Island are richer in nutrients than our North-West European bogs. The cause of this phenomenon is the accumulation of nutrients through the dropping of the numerous seabirds.
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: ddc:553.21 ; ddc:631.4 ; Moor ; Torf ; peatland ; peat
    Language: German
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  • 31
    Publication Date: 2024-02-28
    Description: Durch Untersuchung des Wasserhaushaltes einer Deutschen Hochmoorkultur wird der Einfluß von Trockenjahren dargelegt. Wie Bodenfeuchtigkeitsuntersuchungen mit Tensiometern zeigen, bleiben Moorböden zunächst lange feucht und trocknen dann nur in der durchwurzelten Schicht aus. Wenige Dezimeter darunter bleibt der Moorboden fast wassergesättigt. Wie gezeigt werden konnte, ist dies eine Folge der kapillaren Wasserleitfähigkeit der Torfe. Der Austrocknung der durchwurzelten Schicht kann durch schweres Walzen begegnet werden. Hierzu werden Ergebnisse zur Bodenfeuchteänderung durch Walzen mitgeteilt.
    Description: Dry years also influence the water balance of peat soils. This could be shown by investigations on a German raised bog cultivation. Measurements of soil moisture with tensiometers indicated a long period with sufficient water content. After this period dryness appeared in the rooted zone only, but a few decimeters below this zone the peat soil was nearly saturated. This follows from the unsaturated flow conditions of the peat soils. The drying out of the rooted zone can be reduced by heavy rolling. This had been proved by the measurement of soil moisture during the rolling trial.
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: ddc:553.21 ; Moor ; Torf ; peatland ; peat
    Language: German
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  • 32
    facet.materialart.
    Unknown
    In:  SUB Göttingen | ZA 34278
    Publication Date: 2024-02-28
    Description: Es wird der Lebenslauf der ältesten Moorforschungsstätte von 1877 bis 1977 vorgestellt. Die Gründe zur wissenschaftlichen Bearbeitung der Moore waren schon immer vielschichtig. So wird aus der Geschichte der Moor-Versuchsstation in Bremen deutlich, dass Naturwissenschaftler, Ökologen und Agrarwissenschaftler gemeinsam an der Erforschung der Eigenschaften von Mooren und Torfen mit dem Ziel ihrer optimalen Nutzung interessiert sind. Es wird aber auch deutlich, wie stark die Erkenntnisse der Moorforschung andere Wissenschaften berühren. Darin kommt die interdisziplinäre Stellung der Moor- und Torfkunde zum Ausdruck.
    Description: The curriculum vitae of the oldest institute of moor and peat research, the Moor-Versuchsstation in Bremen, from 1877 till 1977 is presented. The motives for scientific work about bogs and fens all over the time have been multi-purposed. The history of this institute shows, that scientists, oecologists and agriculturists together are interested in the qualities of moor and peat and their usage to the best of ones knowledge. But, it is shown too, how results of moor and peat research other sciences concern. By this the interdiszipline role of moor and peat research is expressed.
    Description: research
    Description: DFG, SUB Göttingen
    Keywords: ddc:553.21 ; ddc:900 ; Moor ; Torf ; Wissenschaftsgeschichte ; peatland ; peat ; history of science
    Language: German
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  • 33
    Publication Date: 2024-02-27
    Description: Im Rahmen dieser Arbeit wurden Schichtglieder der nordpenninischen Feuerstätter Decke des alpinen Flyschtroges im Raum Allgäu/Vorarlberg untersucht. Die Gesteinsserien sind stark tektonisiert, primäre lithostratigraphische Übergänge sind nur selten erhalten. An Hand exemplarischer Aufschlüsse wurde speziell für die basalen Serien dieser Decke (Aptychen-Schichten, Unt. Junghansen-Serie, Feuerstätter Sandstein) versucht, auf bio- bzw. lithostratigraphischem Wege Übergänge, die bisher erkannt bzw. vermutet worden sind, zu bestätigen oder neu zu erfassen. Für die Aptychen-Schichten wurden die Aufschlüsse im unteren Ränker-Tobel und an der Böigen Ach (Ob. Balder­ schwanger Tal) untersucht, da hier Übergänge zur Unt. Junghansen-Serie vorliegen sollen.
    Description: Strata of the Feuerstätt nappe (northern Penninicum) of the Alpine flysch trough in the Allgäu-/Vorarlberg area were studied. The series of this nappe are highly tectonized and primary 1ithostratigraphic transitions are rarely preserved. Previously recognized or assumed transitions in the basal series of this nappe (Aptychen-series, Lower Junghansen-series, Feuerstätt sandstone) were confirmed or reclassified in exemplary outcrops, using bio- and 1ithostratigraphical methods. All sediments were studied petrographically to determine sedimentological criteria. These studies prove that the sedimentological character of the Aptychen-series differs greatly from the Lower Junghansen-series and the Feuerstätter sandstone. The Aptychen-series contain sediments belonging to a pelagic carbonate facies. They are similar to the "Upper Austroalpine" Aptychen limestone. The Lower Junghansen-series, the Feuerstätt sandstone, and the Bolgen-conglomerat (Upper Junghansen-series) mainly represent a proximal flysch-facies. Since the Aptychen-series are of Upper Jurassic age, the contacts between these sediments and the enveloping flysch-series (Hauterivian/Barremian-Paleocene) must be of tectonic character. The results of the sedimentary petrographic studies suggest a common sedimentation trough for the Lower Cre­taceous series of the Faiknis-Tasna-nappe, the "Hauptflysch” nappe and the Feuerstätt nappe. Convergence between the Prätigau-flysch and the Feuerstätt nappe exists only in the Upper Cretaceous and the Lower Tertiary peroids.
    Description: thesis
    Description: DFG, SUB Göttingen
    Keywords: ddc:554.3 ; Vorarlberg ; Unterkreide
    Language: German
    Type: doc-type:book
    Format: 167
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  • 34
    Publication Date: 2024-02-03
    Keywords: Actinocythereis cf. scutigera; Aglaiocypris sp.; Alocopocythere reticulata; Atjehella aff. semiplicata; Bairdoppillata sp.; Brachycythere sp.; Bradleya andamanae; Bythoceratina sp.; Callistocythere cf. flavidofusca intricatoides; Carinocythereis cf. hammata; Carinocythereis sp.; Caudites sp.; Chrysocythere sp.; Counting; Cythere cf. cribriformis; Cythere cf. papuensis; Cytherella cf. pulchra; Cytherelloidea sp.; Cythere sp.; Cytheroma dimorpha; Cytheroma sp.; Cytheropteron sp.; DEPTH, sediment/rock; Echinocythereis sp.; Elevation of event; Event label; GIK/IfG; GIK01056; GIK01057; GIK01058; GIK01059; GIK01060; GIK01061; GIK01068; GIK01074; GIK01082; GIK01083; GIK01084; GIK01085; GIK01086; GIK01087; GIK01088; GIK01096; GIK01103; GIK01105; GIK01106; GIK01112; GIK01122; GIK01134; GIK01135; GIK01143; GIK01152; GIK01153; GIK01154; GIK01156; GIK01157; GIK01172; GIK01173; GIK01174; GIK01175; GIK01181; GIK01183; GIK01187; GIK01190; GIK01191; GIK01194; GIK01196; GIK01197; GIK01198; GIK01199; GIK01202; Gravity corer (Kiel type); Hemicytheridea sp.; Hemikrithe sp.; Hemitrachyleberis sp.; Hulingsina sp.; IIOE - International Indian Ocean Expedition; Institute for Geosciences, Christian Albrechts University, Kiel; KAL; Kasten corer; Keijella sp.; Krithe sp.; Latitude of event; Longitude of event; Loxoconcha sp.; M1; M1_251; M1_252 01057-C; M1_253; M1_254 01059-B; M1_255; M1_256; M1_263; M1_269; M1_277; M1_278 01083-B; M1_279 01084-B; M1_280A; M1_280B; M1_280C 01087-B; M1_281 01088-C; M1_289 01096-B; M1_294; M1_296 11105-3; M1_297 11106-2; M1_303 11112-1; M1_313 11122-2; M1_324 11134-1; M1_326 01135-B; M1_330B 01143-B; M1_338 01152-B; M1_339 11053-1; M1_340 01154-B; M1_342; M1_342A 01156-B; M1_351; M1_352 01173-C; M1_353 01174-B; M1_354 01175-B; M1_359 11081-2; M1_361 01183-B; M1_365 01187-C; M1_368 01190-C; M1_369; M1_372; M1_374 01196-C; M1_375; M1_376 01198-B; M1_377 01199-G; M1_380; Meteor (1964); Microcythere sp.; Moosella sp.; Munseyella sp.; Neomonceratina sp.; Number of species; Ostracoda; Ostracoda, adult; Paijenborchella sp.; Persian Gulf; Phlyctocythere sp.; Propontocypris sp.; Pseudocythere sp.; Quadracythere sp.; Ruggieria (Ruggieria) sp.; Ruggieria darwinii; Salinity; Size fraction 〈 0.063 mm, mud, silt+clay; SL; Tanella cf. gracilis; Temperature, water
    Type: Dataset
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  • 35
    Publication Date: 2024-02-03
    Keywords: Actinocythereis cf. scutigera; Actinocythereis sp.; Aglaiocypris sp.; Alocopocythere reticulata; Atjehella aff. semiplicata; Bairdoppillata sp.; Brachycythere sp.; Bythoceratina sp.; Callistocythere cf. flavidofusca intricatoides; Carinocythereis cf. hammata; Carinocythereis sp.; Chrysocythere sp.; Cythere cf. cribriformis; Cythere cf. papuensis; Cytherella cf. pulchra; Cytherelloidea sp.; Cytheroma dimorpha; Cytheroma sp.; DEPTH, sediment/rock; Elevation of event; Event label; GIK/IfG; GIK01056; GIK01058; GIK01074; GIK01082; GIK01083; GIK01084; GIK01085; GIK01086; GIK01087; GIK01088; GIK01096; GIK01143; GIK01153; GIK01172; GIK01173; GIK01174; GIK01190; GIK01191; GIK01194; GIK01197; GIK01198; GIK01199; Gravity corer (Kiel type); Hemicytheridea sp.; Hemikrithe sp.; Hemitrachyleberis sp.; Hulingsina sp.; IIOE - International Indian Ocean Expedition; Institute for Geosciences, Christian Albrechts University, Kiel; KAL; Kasten corer; Keijella sp.; Krithe sp.; Latitude of event; Longitude of event; Loxoconcha sp.; M1; M1_251; M1_253; M1_269; M1_277; M1_278 01083-B; M1_279 01084-B; M1_280A; M1_280B; M1_280C 01087-B; M1_281 01088-C; M1_289 01096-B; M1_330B 01143-B; M1_339 11053-1; M1_351; M1_352 01173-C; M1_353 01174-B; M1_368 01190-C; M1_369; M1_372; M1_375; M1_376 01198-B; M1_377 01199-G; Meteor (1964); Microcythere sp.; Moosella sp.; Neomonceratina sp.; Persian Gulf; Phlyctocythere sp.; Propontocypris sp.; Pseudocythere sp.; Quadracythere sp.; Ruggieria (Ruggieria) sp.; Ruggieria darwinii; SL
    Type: Dataset
    Format: text/tab-separated-values, 325 data points
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  • 36
    Publication Date: 2024-02-03
    Keywords: Actinocythereis cf. scutigera; Actinocythereis sp.; Aglaiocypris sp.; Alocopocythere reticulata; Atjehella aff. semiplicata; Bairdoppillata sp.; Brachycythere sp.; Bythoceratina sp.; Callistocythere cf. flavidofusca intricatoides; Carinocythereis cf. hammata; Carinocythereis sp.; Chrysocythere sp.; Cythere cf. cribriformis; Cythere cf. papuensis; Cytherella cf. pulchra; Cytherelloidea sp.; Cytheroma dimorpha; Cytheroma sp.; DEPTH, sediment/rock; Elevation of event; Event label; GIK/IfG; GIK01056; GIK01058; GIK01074; GIK01082; GIK01083; GIK01084; GIK01085; GIK01086; GIK01087; GIK01088; GIK01096; GIK01143; GIK01153; GIK01172; GIK01173; GIK01174; GIK01190; GIK01191; GIK01194; GIK01197; GIK01198; GIK01199; Gravity corer (Kiel type); Hemicytheridea sp.; Hemikrithe sp.; Hemitrachyleberis sp.; Hulingsina sp.; IIOE - International Indian Ocean Expedition; Institute for Geosciences, Christian Albrechts University, Kiel; KAL; Kasten corer; Keijella sp.; Krithe sp.; Latitude of event; Longitude of event; Loxoconcha sp.; M1; M1_251; M1_253; M1_269; M1_277; M1_278 01083-B; M1_279 01084-B; M1_280A; M1_280B; M1_280C 01087-B; M1_281 01088-C; M1_289 01096-B; M1_330B 01143-B; M1_339 11053-1; M1_351; M1_352 01173-C; M1_353 01174-B; M1_368 01190-C; M1_369; M1_372; M1_375; M1_376 01198-B; M1_377 01199-G; Meteor (1964); Microcythere sp.; Moosella sp.; Neomonceratina sp.; Persian Gulf; Phlyctocythere sp.; Propontocypris sp.; Pseudocythere sp.; Quadracythere sp.; Ruggieria (Ruggieria) sp.; Ruggieria darwinii; SL
    Type: Dataset
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  • 37
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Iceland-Faroe Ridge; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M31; M31_299; Meteor (1964); Overflow 73; Salinity; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 58 data points
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  • 38
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Iceland-Faroe Ridge; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M31; M31_302; Meteor (1964); Overflow 73; Salinity; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 53 data points
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  • 39
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Iceland-Faroe Ridge; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M31; M31_298; Meteor (1964); Overflow 73; Salinity; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 55 data points
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  • 40
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Iceland-Faroe Ridge; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M31; M31_277; Meteor (1964); Overflow 73; Salinity; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 46 data points
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  • 41
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Iceland-Faroe Ridge; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M31; M31_283; Meteor (1964); Overflow 73; Salinity; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 70 data points
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  • 42
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Iceland-Faroe Ridge; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M31; M31_304; Meteor (1964); Overflow 73; Salinity; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 46 data points
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  • 43
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Iceland-Faroe Ridge; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M31; M31_306; Meteor (1964); Overflow 73; Salinity; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 46 data points
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  • 44
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Ho Paik, K (1977): Regionale Untersuchungen zur Verteilung der Ostracoden im Persischen Golf und im Golf von Oman. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C28, 37-76
    Publication Date: 2024-02-03
    Description: During the "Meteor“-Expedition to the Persian Gulf in March-May 1965, approximately 300 samples were collected. Most of them have been already studied by various authors in sedimentological as well as micropaleontological respects. 49 samples were selected for ostracode studies. These samples are arranged to form a long-axis section ("Laengsprofil“), and 4 shorter cross-profiles, perpendicular to the long-axis profile in the Persian Gulf and Gulf of Oman. 52 species of ostracodes in this area were specifically determined; 39 of them are described under open nomenclature. 13 species are already known from surrounding sea areas: 2 species from the Red Sea; 2 species from the east coast of Africa; 1 species from the Mediterranean Sea; and others from the Indian and Pacific Oceans. 12 species show close relationships to species from the Indopacific Ocean. The ostracode species found in the area can be grouped after the method of BRAUN-BLANQUT into 2 bioassociations. Association 1 with the following 4 characteristic species : Cytherella cf. pulchra, Loxoconcha sp. A, Neomonoceratina sp. A, Alocopocythere reticulata. Association 2 with 1 characteristic species: Ruggieria (Ruggieria) sp. B. The association 1 is widespread in the entire studied area of the Persian Gulf, where it is considered to characterize the shallow water region down to 200 m. The association 2 is restricted to the deeper water below 200 m of the inner part of the Oman Gulf. Only a few species known from the shallow water association of the Persian Gulf are present. Within the two ostracode associations mentioned above 4 zones from the total studied area could be related to the water depth. The zones A-D are characterized more or less readily by the relative abundance of certain species: Zone A : 7-30 m depth, on substrates of poorly coarse-grained clayey marl; Zone B: 30-94 m depth, on substrates of richly coarse-grained calcareous marl; Zone C: 94-1961208 m depth, on substrates of richly coarse-grained calcareous marl; Zone D: 196/208-500 m depth, on substrates of calcareous clay, poor in benthos. The regional and bathymetric distribution of the ostracode fauna in the area studied was compared in relation to 10 environmental factors: water depth, temperature, salinity, water density, O2-concentration, phosphate-silica contents, pH-values, stratification of the water body, water currents and type of sediments. The major environmental factors which appear to control the ostracode distribution are water depth (as a complex factor), O2-concentration and the type of sediment. At 3 stations (GIK01058, GIK01074 and GIK01204) species of the shallow water association were found together with a few bathyal species. These stations are situated at the outer Biaban shelf, in an area where the bottom water of the Persian Gulf flows down the slope towards the Oman Gulf. Several samples of the Zone B in the major part of the Persian Gulf show also a high species diversity containing a high percentage of subfossil ostracode carapaces. It is probable that the recent biocoenosis has been mixed with a late quarternary thanatocoenosis.
    Keywords: GIK/IfG; GIK01056; GIK01057; GIK01058; GIK01059; GIK01060; GIK01061; GIK01068; GIK01074; GIK01082; GIK01083; GIK01084; GIK01085; GIK01086; GIK01087; GIK01088; GIK01096; GIK01103; GIK01105; GIK01106; GIK01112; GIK01122; GIK01134; GIK01135; GIK01143; GIK01152; GIK01153; GIK01154; GIK01156; GIK01157; GIK01172; GIK01173; GIK01174; GIK01175; GIK01181; GIK01183; GIK01187; GIK01190; GIK01191; GIK01194; GIK01196; GIK01197; GIK01198; GIK01199; GIK01202; Gravity corer (Kiel type); IIOE - International Indian Ocean Expedition; Institute for Geosciences, Christian Albrechts University, Kiel; KAL; Kasten corer; M1; M1_251; M1_252 01057-C; M1_253; M1_254 01059-B; M1_255; M1_256; M1_263; M1_269; M1_277; M1_278 01083-B; M1_279 01084-B; M1_280A; M1_280B; M1_280C 01087-B; M1_281 01088-C; M1_289 01096-B; M1_294; M1_296 11105-3; M1_297 11106-2; M1_303 11112-1; M1_313 11122-2; M1_324 11134-1; M1_326 01135-B; M1_330B 01143-B; M1_338 01152-B; M1_339 11053-1; M1_340 01154-B; M1_342; M1_342A 01156-B; M1_351; M1_352 01173-C; M1_353 01174-B; M1_354 01175-B; M1_359 11081-2; M1_361 01183-B; M1_365 01187-C; M1_368 01190-C; M1_369; M1_372; M1_374 01196-C; M1_375; M1_376 01198-B; M1_377 01199-G; M1_380; Meteor (1964); Persian Gulf; SL
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  • 45
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Iceland-Faroe Ridge; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M31; M31_262; Meteor (1964); Overflow 73; Salinity; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 52 data points
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  • 46
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Iceland-Faroe Ridge; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M31; M31_272; Meteor (1964); Overflow 73; Salinity; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 55 data points
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  • 47
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Iceland-Faroe Ridge; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M31; M31_254; Meteor (1964); Overflow 73; Salinity; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 49 data points
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  • 48
    Publication Date: 2024-02-03
    Keywords: Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; East Atlantic; GIK/IfG; GIK12392-1; Institute for Geosciences, Christian Albrechts University, Kiel; KAL; Kasten corer; M12392-1; M25; Melonis pompilioides, δ13C; Melonis pompilioides, δ18O; Meteor (1964); Planulina wuellerstorfi, δ13C; Planulina wuellerstorfi, δ18O; Uvigerina peregrina, δ13C; Uvigerina peregrina, δ18O
    Type: Dataset
    Format: text/tab-separated-values, 415 data points
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  • 49
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    PANGAEA
    In:  Supplement to: Thiede, Jörn; Suess, Erwin; Müller, Peter J (1982): Late Quaternary fluxes of major sediment components to the sea floor at the northwest African continental slope. in: von Rad, U; Hinz, K; Sarnthein, M & Seibold, E (eds.), Geology of the Northwest African Continental Margin, Springer-Verlag, Berlin, 605-631
    Publication Date: 2024-02-03
    Description: The paleo-oceanography of the southeastern North Atlantic Ocean during the last 150,000 yr has been studied using biogenous and terrigenous components of hemipelagic sediments sampled close to the northwest African continental margin. Variations of oxygen isotope ratios in shells of benthic calcareous foraminifers in two cores allow the assignment of absolute ages to these cores (in the best case at 1000 yr increments). The uncorrected bulk sedimentation rates of the longest core range from 3.4 to 7.6 cm/ 1000 yr during Interglacial conditions, and from 6.5 to 9.9 cm/1000 yr during Glacial conditions; all other cores have given results of the same order of magnitude, but with generally increasing values towards the continental edge. The distribution of sediment components allow us to make inferences about paleo-oceanographic changes in this region. Frequencies of biogenic components from benthic organisms, oxygen isotope ratios measured in benthic calcareous foraminiferal shells, the total carbonate contents of the sediment and distributions of biogenic components from planktonic organisms often fluctuate in concert. However, all fluctuations which can be attributed to changes of the bottom water masses (North Atlantic Deep Water) seem to precede by several thousand years those which can be linked to changes of the surface water mass distributions or to changes of the climate over the neighboring land masses. Late Quaternary planktonic foraminiferal assemblages in the cores from the northwest African continental margin can be defined satisfactorily in the way that distributions of assemblages found in sediment surface samples from the northeast Atlantic Ocean have been explained. The distributions of assemblages in the northwest African cores can also be used to estimate past sea surface temperatures and salinities. The downcore record of these estimates reveals two warm periods during the last 150,000 yr, the lower one corresponding to the oxygen isotope stage 5 e (equivalent to the Eemian proper in Europe), the upper one to the younger half of the Holocene. Winter surface water temperatures during oxygen isotope stages 6, 4, 3, and 2 are remarkably constant in most cores, while summer sea surface temperatures during stage 3 reach values comparable to those of the warm periods during the Late Holocene and Eemian. Estimated winter sea surface temperatures range from 〉 16 °C to 〈 11°C, the summer sea surface temperatures from 〉 22 °C to 〈 15 °C during the last 150,000 yr. Estimates of the winter sea surface salinities fluctuate between 36.6‰ and 35.5‰, the higher values being restricted to the warm periods since the penultimate Glacial. Estimates for sea surface temperatures and salinities for two cores from the center of today's coastal upwelling region show less pronounced fluctuations than the record of the open ocean cores in the case of the station 12379 off Cape Barbas, more pronounced in the case of station 12328 off Cape Blanc. Seasonal differences between winter and summer sea surface temperatures derived from the estimated temperatures are today more pronounced in the boundary region of the ocean to the continent than further away from the continent. The differences are generally higher during warm climatic periods of the last 150,000 yr than during cooler ones. The abundance of terrigenous grains in the coarse fractions generally decreases with increasing distance from the continental edge, and also from south to north. The dominant portion of the terrigenous detritus is carried out into the ocean during the relatively cool climatic periods (stage 6, 4, later part of stage 3, stage 2 and oldest part of stage 1). The enhanced precision of dating combined with the stratigraphic resolution of these high deposition rate cores make it clear that the peaks of the terrigenous input off this part of the northwest African continental margin occur simultaneously with times of rapid sea level fluctuations resulting from large volume changes of the large Glacial ice sheets.
    Keywords: Coarse fraction/modal analysis; DEPTH, sediment/rock; East Atlantic; Estimated; Foraminifera, benthic; Foraminifera, planktic; Foraminifera, planktic indeterminata; GIK/IfG; GIK12392-1; Institute for Geosciences, Christian Albrechts University, Kiel; KAL; Kasten corer; Loss by dissolution; M12392-1; M25; Meteor (1964); Radiolarians; Size fraction 〉 0.063 mm, sand; Size fraction 〉 0.150 mm
    Type: Dataset
    Format: text/tab-separated-values, 688 data points
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  • 50
    Publication Date: 2024-02-03
    Keywords: DEPTH, sediment/rock; GIK/IfG; GLAMAP; Globigerinoides ruber, δ13C; Globigerinoides ruber, δ18O; Globigerinoides sacculifer, δ13C; Globigerinoides sacculifer, δ18O; Institute for Geosciences, Christian Albrechts University, Kiel; PC; Piston corer; Uvigerina auberiana, δ13C; Uvigerina auberiana, δ18O; V22; V22-174; Vema
    Type: Dataset
    Format: text/tab-separated-values, 94 data points
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  • 51
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Iceland-Faroe Ridge; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M31; M31_257; Meteor (1964); Overflow 73; Salinity; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 41 data points
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  • 52
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Iceland-Faroe Ridge; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M31; M31_270; Meteor (1964); Overflow 73; Salinity; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 42 data points
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  • 53
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Iceland-Faroe Ridge; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M31; M31_260; Meteor (1964); Overflow 73; Salinity; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 43 data points
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  • 54
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Iceland-Faroe Ridge; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M31; M31_274; Meteor (1964); Overflow 73; Salinity; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 57 data points
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  • 55
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Iceland-Faroe Ridge; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M31; M31_300; Meteor (1964); Overflow 73; Salinity; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 53 data points
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  • 56
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Iceland-Faroe Ridge; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M31; M31_305; Meteor (1964); Overflow 73; Salinity; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 52 data points
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  • 57
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Iceland-Faroe Ridge; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M31; M31_264; Meteor (1964); Overflow 73; Salinity; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 53 data points
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  • 58
    Publication Date: 2024-02-01
    Description: The nervous system in the tentacles of the sea anemones Tealia felina, Anemonia sulcata, Metridium senile and Cerianthus membranaceus was studied using light microscopic and electron microscopic techniques. \nBecause of the small dimensions of the nerve cells (6\xe2\x80\x947 \xc2\xb5m) and of the neurites (diameter 〈 1 \xc2\xb5m) satisfactory information could not be obtained using conventional histological techniques. \nElectron microscopic investigation showed that the nervous system can be divided into three parts: the plexus round the mesogloea, a nervous system between the muscles (obviously connected with the plexus) and sensory cells in the outer layer of the tentacle connected to the plexus by nerve fibres. The latter nerve cells with their fibres are arranged radially in the tentacle ectodermis. These are the only sensory cells discovered in the tentacles of the sea anemones. \nIn these radial neurites and in a number of neurites in the plexus, dense core granules are found. In the nervous system between the muscles and in a number of neurites in the plexus, opaque granules are found. Neurites containing dense core as well as opaque granules were never observed. Only in the radial neurites and in the plexus a yellow F(ormol) I(nduced) F(luorescence) was observed. Analysis of the emission spectrum showed that the F.I.F. had developed from a catecholamine (most probably noradrenalin). Therefore the dense core granules contain a catecholamine. \nOn the basis of morphological similarity, the neurites containing opaque granules may be identified as purinergic as proposed by Burnstock (1972), since the innervation of the muscles in the sea anemones very much resembles the innervation of smooth muscles in vertebrates. \nSynapses as described by a.o. Westfall (1973a) could not be demonstrated. However, desmosome-like structures were found between the epithelial cells and between the muscles, so that a non-neural conduction (c.q. myoepithelial conduction) is probable. This myoepithelial conduction may explain the presence of a \xe2\x80\x9csecond nervous system\xe2\x80\x9d postulated by Bullock & Horridge (1965) which is supposed to be a slowconductive system. A morphological indication for a \xe2\x80\x9csecond nervous system\xe2\x80\x9d has never been found. \nThe two transmitter substances mentioned (no indication was found for the presence of GABA and acetylcholine), i.e. a catecholamine, most probably noradrenalin, and a purine derivate, both have an excitatory function. The possible role of glutamate as an inhibitor has been discussed. Glutamate acts as a possible inhibitor, since it is released from contracting muscles and inhibits the contraction via an unknown mechanism. \nHydra was investigated and the findings were discussed in relation to the existing literature. Only the existence of synapses was discrepant, since these structures could not be demonstrated. \nRegarding the possible transmitters a catecholamine could be demonstrated with the F.I.F. method. A purinergic muscle innervation is possible in view of our experience with sea anemones.
    Repository Name: National Museum of Natural History, Netherlands
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  • 59
    facet.materialart.
    Unknown
    In:  Studies on the Fauna of Cura\xc3\xa7ao and other Caribbean Islands vol. 52 no. 1, pp. 1-71
    Publication Date: 2024-02-01
    Description: The study of some newly collected material from the West Indies may justify a fourth paper on Caribbean Tenebrionidae in these \xe2\x80\x9cStudies\xe2\x80\x9d. Thanks to dr. P. WAGENAAR HUMMELINCK\xe2\x80\x99S collecting work, the Tenebrionid fauna of the Antilles and the adjacent South American mainland shores may be considered to be pretty well known \xe2\x80\x94 at least as far as the Melasomes are concerned. Thus zoogeographical conclusions \xe2\x80\x94 though not differing essentially from those published in 1962 \xe2\x80\x94 appear to have a rather solid basis. Unfortunately much less is known about planticolous Tenebrionids, which anyhow are relatively less interesting for zoogeographical purposes, than the geophilous ones.\nWe also had the privilege of consulting the collections of the I.N.R.A. at Guadeloupe (see MARCUZZI & D\xe2\x80\x99AGUILAR 1971) which considerably increased our knowledge of the Tenebrionid fauna of that and neighbouring islands. Several specimens on hand at the Institute of Marine Biology, Mayag\xc3\xbcez, proved extremely useful for obtaining a better knowledge of the Tenebrionid fauna of the old, sedimentary island of Puerto Rico. In a few single cases material from other sources (British Museum, Museum G. Frey and the private collection of the author) has been used.
    Repository Name: National Museum of Natural History, Netherlands
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  • 60
    facet.materialart.
    Unknown
    PANGAEA
    In:  Deutscher Wetterdienst/Seewetteramt, Offenbach/Hamburg
    Publication Date: 2024-01-19
    Keywords: Characteristic of barometric tendency; Cloud base height; CT; DATE/TIME; Dew/frost point; High cloud; Horizontal visibility; Humidity, relative; Indicator for inclusion or ommission of precipitation data; Indicator for source and units of wind speed; LATITUDE; LONGITUDE; Low/middle cloud amount; Low cloud; M46; M46-track; Mean ships course; Mean ships speed; Meteor (1964); Middle cloud; Past weather1; Present weather; Pressure, atmospheric; Quality control indicator for (a); Quality control indicator for (clouds); Quality control indicator for (dd); Quality control indicator for (Ds); Quality control indicator for (ff); Quality control indicator for (h); Quality control indicator for (HwHw); Quality control indicator for (iR,RRR,tR); Quality control indicator for (ppp); Quality control indicator for (PPPP); Quality control indicator for (PwPw); Quality control indicator for (swell); Quality control indicator for (tbtbtb); Quality control indicator for (TdTdTd); Quality control indicator for (TTT); Quality control indicator for (TwTwTw); Quality control indicator for (Vs); Quality control indicator for (VV); Quality control indicator for (weather); Temperature, air; Temperature, air, wet bulb; Temperature, water; Total cloud amount; Underway cruise track measurements; Wind direction; Wind speed
    Type: Dataset
    Format: text/tab-separated-values, 13261 data points
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  • 61
    facet.materialart.
    Unknown
    In:  Bijdragen tot de dierkunde vol. 47 no. 1, pp. 120-130
    Publication Date: 2024-01-12
    Description: In many studies on mammalian distribution, vegetation is considered in particular as a source of food and its importance in terms of habitat has been neglected. The type of vegetation cover is a limiting factor only in the choice of ecological niches but does not in general affect the overall distribution. On the contrary, the density of mammals is in many cases associated with the morphology of the plant cover, especially in the case of granivores (rodents), less for insectivores and small carnivores. In the paper several examples are given concerning mammals of Europe and North Africa and the importance of vegetation morphology for nests, cover and landmarks, as well as exceptions and adaptations, especially on islands.
    Repository Name: National Museum of Natural History, Netherlands
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  • 62
    facet.materialart.
    Unknown
    In:  Bijdragen tot de dierkunde vol. 47 no. 2, pp. 197-204
    Publication Date: 2024-01-12
    Description: In the second half of the 19th century, the rhinoceros occurred throughout Borneo except southern Sarawak, northwestern Kalimantan and some parts of southern Kalimantan. The animal was extinct in the coastal and other populated areas in about 1930, especially in the southern part of Kalimantan. Presently some small populations remain, scattered over the Sarawak interior (if the rhinoceros survives at all there), northeastern Sabah, possibly also southern Sabah and around Mt. Kinabalu, and the interior of Central and East Kalimantan. It is estimated that some 15 to 25 rhinos are still alive in Borneo.
    Repository Name: National Museum of Natural History, Netherlands
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  • 63
    facet.materialart.
    Unknown
    In:  Bijdragen tot de dierkunde vol. 47 no. 2, pp. 205-214
    Publication Date: 2024-01-12
    Description: Macquarie Island (54\xc2\xb037\'S 158\xc2\xb054\'E) has been investigated for the occurrence of freshwater macroturbellarians. Twenty sites were examined but only one species, here ascribed to the genus Minona sensu lato of the Monocelididae, was found and it is described as Minona amnica sp. nov. Its closest taxonomic relationships seem to be with M. istanbulensis Ax from the Black Sea, and M. mica Marcus from Brasil. The new species is unusual in that it occurs throughout the fresh waters of the island even though it is a member of a predominantly marine group. Minona amnica occurs from windswept plateau lakes down to brackish water near the sea and data concerning the distribution and relative abundance of the species in various habitats are presented and discussed.
    Repository Name: National Museum of Natural History, Netherlands
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  • 64
    facet.materialart.
    Unknown
    In:  Bijdragen tot de dierkunde vol. 47 no. 1, pp. 109-119
    Publication Date: 2024-01-12
    Description: Unter Anemonenfischen verstehen wir haupts\xc3\xa4chlich Arten der indopazifischen Gattung Amphiprion (Riffbarsche, Pomacentridae), die in Seeanemonen leben. Mariscal (1966) und neuerdings Allen (1975) haben die vielen Untersuchungen dieser Beziehung zusammengefasst. Aus der Literatur sind andere Anemonenfische kaum bekanntes handelt sich um einen Gobiiden aus dem Mittelmeer (Abel, I960) und ungef\xc3\xa4hr 14 Arten aus dem gleichen Lebensraum wie Amphiprion, darunter Pomacentriden (Stevenson, 1963), Cirrhitiden (Eibl-Eibesfeldt, 1964), Labriden, Blenniiden, Apogoniden, Anthiiden (Graefe, 1964). Bei all diesen Arten ist der Kontakt der Fische mit den Tentakeln der Anemone bei weitem nicht so deutlich ausgepr\xc3\xa4gt wie bei Amphiprion. Es scheint, dass die sch\xc3\xbctzende N\xc3\xa4he der Tentakeln zwar aufgesucht, direkter Kontakt aber meistens gemieden wird.\nNeuerdings werden Anemonenfische auch in der Karibischen See gefunden (siehe Karte). Smith (1973) beschreibt einen Cliniden von Panama. Hannau & Mock (1974) illustrieren eine zweite Clinidenart von den Bahamas. Colin & Heiser (1973) beschreiben zwei Apogoniden von Jamaica und Cura\xc3\xa7ao. Hanion & Kaufman (1976) f\xc3\xbcgen aus den Bahamas, von Jamaica und Honduras sechs weitere Arten hinzu: drei Cliniden, einen Gobiiden, einen Labriden und einen Pomadasyiden. Der vorliegende Bericht beschreibt 31 Anemonenfischarten aus 12 Familien von Cura\xc3\xa7ao, drei Viertel davon neu in dieser Hinsicht. Der Kontakt mit Anemonententakeln st\xc3\xb6rt all diese Fische nicht. Sie scheinen den Kontakt z.T. aufzusuchen. Ob die Vergesellschaftung eine Symbiose ist, ist noch nicht deutlich; sicher ist die Vergesellschaftung nicht so auff\xc3\xa4llig wie bei Amphiprion.
    Repository Name: National Museum of Natural History, Netherlands
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  • 65
    Publication Date: 2024-01-12
    Description: As a working hypothesis it is supposed that in the teleost Brachydanio rerio, the muscle contractions, the growth, and probably some other factors, cause the first changes in the shape of the somites. Furthermore, the movements of the embryo could yield the forces by which the somites are brought to their theoretically optimal shape.\nIn order to test this hypothesis, we investigated the somite shape and structure of spontaneously immobile embryos. Although the results are difficult to interpret, they certainly do not contradict the hypothesis.\nFor further analysis we applied two kinds of lesions in order to immobilize early embryos: removal of the brain, and damage to the midbody somites. The results of these experiments indicate that both the development of the shape of the somite and the arrangement of the muscle fibres are dependent on movements of the embryo.
    Repository Name: National Museum of Natural History, Netherlands
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  • 66
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    In:  Zoologische Verhandelingen vol. 150 no. 1, pp. 1-42
    Publication Date: 2024-01-12
    Description: INTRODUCTION\nAt the request of Dr. Dennis M. Devaney, Invertebrate Zoologist, Bernice P. Bishop Museum, Honolulu, Hawaii, I investigated a number of Polynesian soft corals kept in the Museum mentioned.\nAt the same time Professor Paul J. Scheuer, University of Hawaii at Manoa, Department of Chemistry, Honolulu, Hawaii, asked me to identify some octocorals from Enewetak Atoll (Marshall Is.) and from Ponape Island (Carolines).\nThese collections include several well-known species which are not described in the present paper. I only mention their names with the localities added in parentheses: Cladiella pachyclados (Klunzinger, 1877) (American Samoa); Lobophytum borbonicum (Von Marenzeller, 1886) (Enewetak); Lobophytum pauciflorum (Ehrenberg, 1834) (Enewetak, Wake I., Kingman Reef, Cook Is.); Lobophytum schoedei Moser, 1919 (Wake I.); Sarcophyton acutangulum (Von Marenzeller, 1886) (American Samoa, Cook Is.); Sarcophyton crassocaule Moser, 1919 (Christmas I.); Sarcophyton ehrenbergi Von Marenzeller, 1886 (Fiji Is.); Sarcophyton glaucum (Quoy & Gaimard, 1833) (American Samoa, Enewetak); Sarcophyton trocheliophorum Von Marenzeller, 1886 (Fanning Atoll, Enewetak, Wake I., Washington L, Kingman Reef); Sinularia flexibilis (Quoy & Gaimard, 1833) (Fiji Is.); Sinularia leptoclados (Ehrenberg, 1834) (Gambier Is., Fanning Atoll, Enewetak); Sinularia macrodactyla Kolonko, 1926 (Fiji Is.); Sinularia polydactyla (Ehrenberg, 1834) (Fiji Is., Guam, Samoa); Xenia crassa Schenk, 1896 (Fiji Is.); Xenia lillieae Roxas, 1933 (Fiji Is.); Xenia membranacea Schenk, 1896 (Carolines); Dendronephthya (Roxasia) mirabilis
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  • 67
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    In:  Zoologische Verhandelingen vol. 151 no. 1, pp. 1-41
    Publication Date: 2024-01-12
    Description: Die hier bearbeitete Sammlung enth\xc3\xa4lt zehn Arten. Von diesen waren acht Arten bekannt, eine Art wird als neu f\xc3\xbcr die Wissenschaft beschrieben und eine Art konnte nur bis zu der Gattung bestimmt werden.\nGuinot (1967) nennt in einer zusammenfassenden Liste der Brachyuren des westlichen Indischen Ozeans und des Roten Meeres elf Arten von Dromiiden aus dem Roten Meer. Zu dieser Zusammenfassung l\xc3\xa4sst sich jetzt folgendes sagen: Das Vorkommen von sechs Arten kann ohne Ver\xc3\xa4nderung best\xc3\xa4tigt werden, n\xc3\xa4mlich: Dromidia unidentata (R\xc3\xbcppell), Cryptodromia canaliculata Stimpson, C. granulata (Kossmann), C. hilgendorfi De Man, C. gilesii (Alcock) und C. bullifera (Alcock). Zwei der von Guinot genannten Arten sind bis jetzt nicht im Roten Meer gefunden worden, Dromidiopsis dormia (Linnaeus) und Cryptodromia pentagonalis (Hilgendorf). Bez\xc3\xbcglich Dromidiopsis dormia konnte hier nachgewiesen werden, dass alle diesbez\xc3\xbcglichen Angaben aus dem Roten Meer zu Dromia dehaani Rathbun, geh\xc3\xb6ren.\nCryptodromia pentagonalis wird von Nobili (1906: 146) genannt und er schreibt dort unter anderem \xe2\x80\x9eNouvelle pour la mer Rouge". Der Fundort des von Nobili beschriebenen Weibchens ist jedoch Aden und liegt daher ausserhalb des Roten Meeres. Immer wieder muss darauf hingewiesen werden, dass ein Teil des von Nobili (1906) bearbeiteten Materials nicht aus dem Roten Meer stammt, sondern aus dem Golf von Aden. Die von Guinot genannte Art Cryptodromia tomentosa (Heller) wurde schon von De Man (1888) mit C. canaliculata Stimpson, synonymisiert. Pseudodromia integrifrons Henderson, wurde von Balss (1922) mit P. caphyraeformis (Richters) synonymisiert. Pseudodromia murrayi Gordon, wird in dieser Arbeit ebenfalls mit P. caphyraeformis synonymisiert.
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  • 68
    Publication Date: 2024-01-12
    Description: A sirenian skeleton, the major part of which was excavated from Miocene deposits at Eibergen near Winterswijk, belongs to Metaxytherium. The temporal crests on the parietals are well separated. The foramen magnum is pointed above. The mandible has a downturned symphysial body with four shallow alveoli on each side. The wide mandibular canal opens some distance behind the alveolus of M3. There are alveoli for one premolar (P4) and for three molars (M1-M3). Only M2 dext. is preserved; it has four main cusps and some accessory cusplets. The humerus, the shaft portion of which is missing, has a wide and marked bicipital groove. The vertebrae, with the exception of the atlas, are fragmentary. The spinous processes are solid, the centra porous. The ribs, a few of which have been reassembled rather completely from fragments, are solid except for their vertebral ends. The distal, or sternal, ends may show a porous structure internally. In the sternum, the manubrium is separate, whereas corpus and ensiform process are co-ossified. The Eibergen sirenian appears indistinguishable from Metaxytherium medium (Desmarest) from the Helvetian of France.
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  • 69
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    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 9 no. 2, pp. 271-274
    Publication Date: 2024-01-12
    Description: Habitu coloreque Mucronellae flavae Corner similis, ab hac tamen diversa subiculo manifesto, proventu caespitoso, sterigmatibus longioribus, sporis majoribus, cystidiis hymenialibus. Holotypus in GZU, fragmentum typi in L.\nFungus resembling by its habit and colour Mucronella flava Corner, from which it differs in possessing a well-developed subiculum, caespitose growth, longer sterigmata, larger spores, and hymenial cystidia.
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  • 70
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    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 9 no. 3, pp. 417-418
    Publication Date: 2024-01-12
    Description: Two species formerly placed in Trechispora have been studied and are now transferred to two different genera. The following new combinations are proposed: Ramaricium albo-ochraceum (Bres.) J\xc3\xbclich and Lindtneria leucobryophila (P. Henn.) J\xc3\xbclich. The genus Lindtneria has been emended.
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  • 71
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    In:  Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland vol. 8 no. 10/11, pp. 193-206
    Publication Date: 2024-01-12
    Description: In this paper a description is given of the vegetation in a pool near Hengelo (prov. of Overijssel). In the dry summers of 1975 and 1976, large parts of the shores and shallows of this pool ran dry. On these places a vegetation developed consisting mainly of Eleocharis acicularis, Elatine hexandra and to a lesser extent Juncus bulbosus. Presumably the first species is present permanently; it only flowers if its habitat runs dry. The annual Elatine hexandra was seen from July to as late as January. While in the course of summer and autumn the water level was sinking, Elatine died off in the upper zones and appeared in zones recently run dry. Somewhat later than the former two species, Juncus bulbosus developed. Whilst J. bulbosus is usually a perennial, in this pool it appeared as an annual. Locally Littorella uniflora was seen, always in open vegetation. In 1975 Eleocharis acicularis and Elatine hexandra were also seen locally in shallow water; the latter species flowered and fruited under these conditions. The four species mentioned above are characteristic for amphiphytic communities belonging to the alliance Littorellion. The ecology of these communities has been studied extensively in the Netherlands for some 40 years (SCHOOF-VAN PELT, 1973). Because of the rare occurrence of Elatine hexandra, this species\xe2\x80\x99 ecology is relatively little known. Formerly, it was recorded chiefly in the Iso\xc3\xabto-Lobelietum, although it occurred most often in pools with slightly \xe2\x80\x98enriched\xe2\x80\x99 water, where this association which is very vulnerable to eutrophication lost ground. In recent years E. hexandra has been found several times in the Eleocharitetum acicularis. The Eleocharis \xe2\x80\x93 Elatine community in our pool (table 1) can be reckoned to the last mentioned association. Whilst in the Netherlands E. hexandra is looked upon as a characteristic taxon of the alliance Littorellion, in southern Germany it occurs in the Eleocharitetum soloniensis (all. Nanocyperion) together with Eleocharis soloniensis, Limosella aquatica and other annuals. In fact, Elatine hexandra and other Elatine species are more or less intermediate between Littorellion and Nanocyperion. In sites periodically running dry communities of both alliances can form a mosaic pattern, the Littorellion association (e.g., Eleocharitetum acicularis) being present permanently, the Nanocyperion association (e.g., Eleocharitetum soloniensis) developing only on spots run dry. Elatine spp. constitute a transition group, occurring only in summer and autumn, but being able to germinate when inundated.
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  • 72
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    In:  Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland vol. 8 no. 9, pp. 168-169
    Publication Date: 2024-01-12
    Description: Dr. J. F. Veldkamp (Rijksherbarium, Leiden) was so kind to point out to us, that our new combination Cerastium fontanum Baumg. subsp. holosteoides (Fr.) Salman, van Ommering et de Voogd was incorrect. According to Art. 60 of the International Code of Botanical Nomenclature the correct name or epithet is the earliest legitimate one available in the new rank: C. fontanum Baumg. subsp. glabrescens (G. F. W. Meyer) Salman, van Ommering et de Voogd.
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  • 73
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    In:  Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland vol. 8 no. 12, pp. 241-242
    Publication Date: 2024-01-12
    Description: Senecio congestus (R. Br.) DC. in Zeeland. In de lijst met zeldzame planten 1975 (Gorteria 8, 1977, p. 135\xe2\x80\x94156) werd Senecio congestus opgegeven van Eversdijk, Z.-Beveland, met de vermelding, dat deze soort in het Deltagebied nooit zuidelijker dan Schouwen en Tholen was waargenomen. Ir. J. W. Jongepier (O.-Souburg) en W. de Munck (Yerseke) maken mij er op attent, dat deze opmerking niet juist is. De eerste heeft de soort reeds in 1966 of 1967 in een droogvallend plasje nabij dijkwerkzaamheden bij Vlissingen aangetroffen; ook vond hij Senecio congestus in 1977 eveneens op Z.-Beveland, langs een nieuw gegraven sloot, O. van Heinkenszand. De heer De Munck schrijft mij, dat de moerasandijvie na de afsluiting van de Zandkreek en het Veerse Gat veelvuldig is aangetroffen zowel op de schorren van Kamperland als op de schorren in het Noord-Sloe. Ook is de soort \xc3\xa9\xc3\xa9nmaal gevonden op een bedijkt schor bij Nummer Een, Z.-Vl., O. van Breskens. Dit brengt het aantal vindplaatsen van S. congestus, die in ons land zijn belangrijkste verspreidingsgebied heeft, in het Deltagebied zuidelijker dan Schouwen en Tholen op 8 (fig. 1). Leiden
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  • 74
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    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 23 no. 2, pp. 205-218
    Publication Date: 2024-01-12
    Description: The genus is re-described and its status discussed. A key to all known species is provided, and a full synonymy and description for each, with discussions on the complex synonymies of A. terminans and A. opulentum. Ten species are recognized and 23 basionyms reduced to synonymy. One new species, A. tildeniae from Tahiti, is described and the following new combinations are made: A. tonkinense (C. Chr.) Holttum, A. subattenuatum (Rosenst.) Holttum, A. paraphysophorum (v. A. v. R.) Holttum, A. attenuatum (O. Kuntze) Holttum, A. distinctum (Copel.) Holttum, A. ceramicum (v. A. v. R.) Holttum.
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  • 75
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    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 9 no. 3, pp. 401-408
    Publication Date: 2024-01-12
    Description: The hyphomycetous genus Myceliophthora Cost. is reintroduced with its type species, M. lutea Cost., and two new combinations are proposed: Myceliophthora thermophila and M. fergusii. The genus is characterised by blastoconidia with narrow basal attachments (sometimes borne on ampulliform swellings) and by lacking arthroconidia. All three species are more or less thermophilic, with temperature optima between 30 and 45\xc2\xb0C.
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  • 76
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    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 9 no. 3, pp. 409-416
    Publication Date: 2024-01-12
    Description: Clavaria lutea Vitt. is recognized as a species in its own right, for which the new combination Ramaria lutea is proposed. A partial redescription is given of the neotype preserved at ZT, and a full description based on fresh material is added. Some of the confusing descriptions in earlier literature are discussed.
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  • 77
    facet.materialart.
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    In:  Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland vol. 8 no. 10/11, pp. 216-218
    Publication Date: 2024-01-12
    Description: J. ABRAHAMSE, W. JOENJE & N. VAN LEEUWEN-SEELT (red.), Waddenzee, natuurgebied van Nederland, Duitsland en Denemarken, Landelijke Ver. tot Behoud van de Waddenzee, Harlingen/Ver. tot Behoud van Natuurmonumenten in Nederland, \xe2\x80\x99s-Graveland, 1976, 368 pag., \xc6\x92 79,90 (voor leden van de uitgevende Verenigingen \xc6\x92 59,90). In dit veelzijdige, fraai ge\xc3\xafllustreerde werk is het hoofdstuk Plantengroei van de hand van W. Joenje en Prof. Dr. V. Westhoff, m.m.v. Dr. E. van der Maarel.\nJ. C. BOTH, De vegetatie van enkele blauwgraslandcomplexen, doctoraal scriptie, Vakgroep Natuurbeheer, Wageningen/Rijksinstituut voor Natuurbeheer, Leersum, 1976, 91 pag. + bijlagen, fotokopie \xc2\xb9). Het onderzoek werd verricht in de provincies Utrecht, Gelderland en Overijssel en had ten doel (vooral vegetatiekundige) gegevens te verkrijgen, nodig voor het opstellen van richtlijnen voor een optimaal beheer van blauwgraslanden.
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  • 78
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    In:  Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland vol. 8 no. 7, pp. 124-128
    Publication Date: 2024-01-12
    Description: The author describes two new subspecies of Rubus, viz. R. schlechtendalii subsp. subcentreuropus Beek and R. glandulosus subsp. picearum Beek.
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  • 79
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    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 23 no. 2, pp. 341-343
    Publication Date: 2024-01-12
    Description: Arrhenechthites haplogyna (F. Mueller) Mattfeld was originally described as Senecio haplogynus F. Mueller (Trans. Roy. Soc. Victoria 1, 1899: 14), based on rather poor material collected by Sir William MacGregor from Mount Knutsford. Von Mueller remarks that the species could be placed both in Senecio or Erechthites, basing himself on the statement by Bentham and Hooker in the Genera Plantarum 2 (1873) 208, \xe2\x80\x98that occasionally some solely pistillate flowers occur in species of Senecio, hence the only characteristic which separates Erechthites from Senecio, is unreliable, and therefore the present plant may be placed in either genus\xe2\x80\x99.\nMattfeld (Bot. Jahrb. 69, 1938: 292) creates a new genus, Arrhenechthites, and moves Senecio haplogynus into this genus, after originally having it placed in Erechthites (Bot. Jahrb. 62, 1929: 442). The grounds on which Arrhenechthites is distinguished in the first place from Erechthites, and secondly from Senecio, are rather flimsy but distinct. From both Arrhenechthites differs in having all marginal florets fertile but having sterile ovaries in the disk florets. The genus Erechthites differs from Senecio by having style arms with a crown of divergent hairs surrounding an appendage of fused papillose hairs. In Senecio this same crown of divergent hairs is present but the tips of the style arms are truncate or bluntly appendaged. Applying these data to von Muellers species it is clear that it is a species of Arrhenechthites and not a Senecio.
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  • 80
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    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 9 no. 2, pp. 279-280
    Publication Date: 2024-01-12
    Description: Polyporus semisupinus Berk. & Curt. apud Berk. in Grevillea 1: 50. 1872. \xe2\x80\x94 Tyromyces semisupinus (Berk. & Curt.) Murr. in N. Am. Flora 9: 34. 1907. \xe2\x80\x94 For other synonyms see Donk (1974: 180).\nFruitbodies resupinate to effused-reflexed or in the shape of sessile, dimidiate pilei, measuring up to 4x2X0.2-0.3 cm, often narrowed at base, with acute edge. Upper surface rough, whitish, locally brownish. Resupinate parts with white tomentose margin or fertile up to well defined edge. Context and very thin subiculum white, tough, coriaceous when fresh, rigid after drying. Tubes 1-2 mm long; pores angular, 0.15-0.25 mm in diam., 4-6 per mm; dissepiments very thin; pore surface cream to light yellow when fresh, (light) orange after drying.
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  • 81
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    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 9 no. 3, pp. 419-419
    Publication Date: 2024-01-12
    Description: This richly illustrated book shows many of the most common and most spectacular species of fungi found in Western Europe. The text is very popular and touches such items as poisionousness, edibility, culinary instructions, prejudices, and folklore.
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  • 82
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    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 9 no. 2, pp. 267-270
    Publication Date: 2024-01-12
    Description: Mycena galericulata (Scop. ex Fr.) S. F. Gray is a common agaric, widely distributed in Europe and readily recognized. Whether this also applies to extra-European areas is here left out of consideration, while the actual investigation is concerned only with the situation in the Netherlands.\nAs far as I have been able to check, the general opinion in Europe has been and still is that M. galericulata occurs predominantly with 2-spored basidia. A few references may be cited to substantiate this statement; some care had to be taken in consulting those authors who regarded M. galericulata and M. rugosa Fr. (now considered to represent one and the same species) as distinct.
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  • 83
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    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 9 no. 3, pp. 305-327
    Publication Date: 2024-01-12
    Description: The genus Melanotus is revised. Its delimitation is discussed. A key is given to 21 accepted species. Of these synonyms, habitat, distribution, and illustrations are given. The new species Melanotus citrisporus, M. protractus, M. distinctus, M. vorax, and M. communis are described. Melanotus hepatochrous and M. flavolivens are described anew. A list of host plants is added.
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  • 84
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    In:  Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland vol. 8 no. 10/11, pp. 212-216
    Publication Date: 2024-01-12
    Description: Drift \xe2\x80\x98Japweed\xe2\x80\x99 [Sargassum muticum (Yendo) Fensholt] has recently been found in the Netherlands. The route of this marine fouling organism (a large brown alga) is described. Concern is expressed with regard to the potential effects of the spread of S. muticum along our coasts and eradication of this alga is proposed.
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  • 85
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    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 9 no. 2, pp. 239-256
    Publication Date: 2024-01-12
    Description: Hygrophorus (Hygrocybe) marchii Bres. and four closely related species are described, and a key to this group of species is given. One species is described as new, viz. Hygrophorus phaeococcineus.
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  • 86
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    In:  Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland vol. 8 no. 10/11, pp. 187-193
    Publication Date: 2024-01-12
    Description: The authors report a new locality in the Netherlands (Zeeland) in which Campanula latifolia L. has been found. A description of the vegetation of the site is given and the habitat is compared with the environments in which this species occurs in other countries of Europe. A map of the distributional area was drawn according to the floras of the European countries. So far, the species has been found several times in the Netherlands, but botanists considered such occurrences as incidental escapes (cultivated plants running wild). The data about Dutch localities are analysed and it is demonstrated that the presumption (by the collector or by later interpreters) that the species on the locality would be running wild, in a number of cases does not hold. From the information obtained the conclusion is drawn that, in the Netherlands, Campanula latifolia is either (and probably) a native species, or else an agriophyte (naturalized and completely adapted to native vegetation), but (apart from possible exceptions) not a species incidentally running wild.
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  • 87
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    In:  Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland vol. 8 no. 8, pp. 156-157
    Publication Date: 2024-01-12
    Description: The author mentions the finding of a great number of seeds of the tropical Entada gigas (L.) Fawcett et Rendle in november 1976 along the beach of Walcheren (prov. of Zeeland) and supposes that the seeds are probably a part from a ship-load or transported on long distance by the sea. In a postscriptum Dr. Leenhouts is of the opinion that Gulfstream transport is highly improbable, the more so as the seeds of Entada gigas are apparently used pharmaceutically.
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  • 88
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    In:  Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland vol. 8 no. 12, pp. 240-241
    Publication Date: 2024-01-12
    Description: The author mentions the records of a number of taxa new for the Wadden island of Vlieland, viz. Thalictrum dunense L. subsp. dunense (Dum.) Rouy et Fouc., Ruppia cirrhosa (Petagna) Grande, Carex acutiformis Ehrh., C. paniculata L., Phalaris canariensis L., and Orchis praetermissa Druce.
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  • 89
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    In:  Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland vol. 8 no. 8, pp. 135-156
    Publication Date: 2024-01-12
    Description: The list of new localities of rare species and interesting records of more common species found in the Netherlands mainly during 1975, has been subdivided in three categories: A. Netherlands species; B. Adventitious species; C. Species escaped from cultivation.\nIn comparison with former lists category A includes the species \xe2\x80\x94 also naturalised ones \xe2\x80\x94 belonging to the Netherlands Flora, as established by the Floristic Council in 1975 (MENNEMA, 1975) and inserted in the Standard List of the Netherlands Flora 1975 (ARNOLDS & VAN DER MEIJDEN, 1976).\nIn list A comments have been added, where necessary; adventitious records of Netherlands species are indicated with adv., escapes from cultivations with verw. In list B and C the names of the species, new for the Netherlands, are in bold type.
    Repository Name: National Museum of Natural History, Netherlands
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  • 90
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    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 9 no. 2, pp. 265-265
    Publication Date: 2024-01-12
    Description: This booklet gives an introduction to the study of the genus Lactarius and a survey of its European species. Keys are presented; variability and relationships of the species are amply discussed.
    Repository Name: National Museum of Natural History, Netherlands
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  • 91
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    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 9 no. 3, pp. 281-304
    Publication Date: 2024-01-12
    Description: Examination of four collections of Psathyrella frustulenta sensu A. H. Smith and four of P. frustulenta sensu Romagn. revealed that the former species is distinguished from the latter by its strongly developed veil and habitat (woods) and that there are considerable microscopic differences between the two (spore size, number and shape of pleurocystidia, pattern of cellular lining of gill edge). The former species is to be regarded as conspecific with Agaricus frustulentus Fries, the latter as conspecific with P. clivensis (Berk. & Br.) P. D. Orton. It is argued that the name P. fibrillosa was misapplied by J. E. Lange and A. H. Smith to a species for which the name P. friesii is introduced. Descriptions of P. friesii, P. frustulenta, P. clivensis, and P. obtusata are given.
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  • 92
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    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 9 no. 2, pp. 275-277
    Publication Date: 2024-01-12
    Description: Until recently the mycoflora of the West Frisian Islands has been rather neglected. In the last few years, however, members of both the Rijksherbarium and the Netherlands\xe2\x80\x99 Mycological Society (N.M.V.) have been collecting more frequently on these islands. The results of their fieldtrips are promising for the future as many interesting and rare fungi have been found. \nIn a previous paper (Noordeloos, 1975) I described a rare species of the genus Marasmiellus Murr., viz. M. caespitosus (Pat.) Sing. from the Island of Texel\xc2\xb9. I now want to introduce, from the same island, another member of the same genus.
    Repository Name: National Museum of Natural History, Netherlands
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  • 93
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    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 9 no. 2, pp. 159-198
    Publication Date: 2024-01-12
    Description: A revision of the genus Lichenoconium Petr. & Syd. (Sphaeropsidales) is presented. Ten species are accepted including L. echinosporum D. Hawksw., L. erodens M.S. Christ. & D. Hawksw. and L. parasiticum D. Hawksw. sp. nov. and L. cargillianum (Linds.) D. Hawksw. and L. usneae (Anzi) D. Hawksw. combs. nov. All species apart from L. boreale (Karst.) Petr. & Syd. are exclusively lichenicolous and species of the genus certainly occur on 58 host lichens (with unconfirmed reports for a further 11). Up to three Lichenoconium species can occur on a single host but when this arises different symptoms often result. Descriptions of the accepted species and details of the reactions of various hosts to them are presented; a key and table summarising their differences is included. The species are delimited on the basis of their anatomy and morphology without regard for the host genera infected; some then prove to be restricted to particular host genera whilst others occur on several. The identities of five excluded taxa are discussed, and it is emphasized that as currently conceived the genus is not natural and that both L. boreale and L. pertusariicola (Nyl.) D. Hawksw. will eventually require transference to other genera when generic concepts in allied non-lichenicolous fungi have been clarified. Scanning electron micrographs of conidia of most species treated are included.
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  • 94
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    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 9 no. 3, pp. 329-361
    Publication Date: 2024-01-12
    Description: At the base of the stipe in Agaricales basal plectenchyma is found which may enlarge to form a bulb. This tissue is not homogeneous. It is characterized by peculiar configurations: free tips of branches, sinuous hyphae, loops, spirals and rings (sometimes enclosing another hypha) and hyphal knots. The hyphal knots present themselves as bundles of hyphae, which may or may not be the centre of cell division, or as agglomerations of cells surrounded by coiled hyphae. The latter structure, present in many species of Agaricales, is found in its perfect form in the trama of the Amanitaceae, which recalls the trama of the Russulaceae. The young pileus trama of many species shows the same characteristics; these also occur in the trunk of Ramaria, in young bulbs of Gasteromycetes, and in various veils. The diverse kinds of cell formation in the primordia of Agaricales are treated at some length, the conception meristemoid is defined, and a comparison with the development of some of the true Aphyllophorales is made. The heteromerous trama of the Asterosporales and the trama of the Amanitaceae, characterized by acrophysalides, are considered to be derived from the young trama of other Agaricales. The tissue of the bulbs of the strains 59b and 59c of Agaricus bisporus is analyzed. Strain 59b is homologous with the bulb tissue of a normal fruitbody of Agaricus bisporus. In agreement with G. Fritsche the conclusion is drawn that 59c is a gigas-form. Watling\xe2\x80\x99s carpophoroids of Psilocybe merdaria are considered.\nThe fundamental differences between the development of true Aphyllophorales and that of cantharelloid fungi, Agaricales, and Gasteromycetes are emphasized. As for the evolution within the Asterosporales, it is concluded that the degradation of certain characters in the gasteromycetoid forms (Heim, Malen\xc3\xa7on) need not contradict the arguments advanced by R. Singer and A. H. Smith.
    Repository Name: National Museum of Natural History, Netherlands
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  • 95
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    In:  Verslagen en Technische Gegevens vol. 14 no. 1, pp. 1-82
    Publication Date: 2024-01-12
    Description: A list of the species and subspecies, including synonyms, of the tipulid subfamily Ctenophorinae is provided. References to the literature are nearly complete. The distribution of the species is indicated by abbreviations and figures referring to the geographic regions and subregions. A survey of the distribution of the 5 genera is given separately.
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  • 96
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    In:  Studies on the Fauna of Cura\xc3\xa7ao and other Caribbean Islands vol. 54 no. 1, pp. 1-24
    Publication Date: 2024-01-12
    Description: La faune isopodologique littorale des Antilles est peu connue et les \xc3\xa9tudes syst\xc3\xa9matiques sont rares. Nous pouvons signaler, parmi les principaux travaux, ceux de MOORE (1901) et de MENZIES & GLYNN (1968), tous les deux sur Porto Rico; celui de RICHARDSON (1912) sur la faune terrestre et marine de Jama\xc3\xafque et celui de GLYNN (1970) sur les Sphaeromidae de l\xe2\x80\x99\xc3\xaele Margarita (V\xc3\xa9n\xc3\xa9zu\xc3\xa9la). Les \xc3\xa9tudes de GLYNN (1968) sur les isopodes associ\xc3\xa9s aux chitons de Porto Rico et celui de MENZIES (1957) sur les Limnoriidae de l\xe2\x80\x99Am\xc3\xa9rique du Nord et Centrale sont aussi des contributions importantes.\nLa faune isopodologique des Bermudes, elle, a \xc3\xa9t\xc3\xa9 \xc3\xa9tudi\xc3\xa9e par RICHARDSON en 1902.
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  • 97
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    In:  Studies on the Fauna of Cura\xc3\xa7ao and other Caribbean Islands vol. 51 no. 1, pp. 69-91
    Publication Date: 2024-01-12
    Description: During a study still in progress on the fauna of phreatic waters of various West Indian islands, a number of isopods of the family Microparasellidae were obtained. Although material from some 20 Caribbean islands was examined, only the island of Bonaire yielded microparasellid isopods so far. These animals are described in the present paper. Up to now, the only other West Indian records for the family are those of COINEAU & BOTOSANEANU, 1973, from Cuba.\nThe methods employed are the same as in my previous study (STOCK, 1976a) on the Antillean Thermosbaenacea. All chlorinities have been determined with the aid of an E.E.L. electric chlorinimeter.
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  • 98
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    In:  Studies on the Fauna of Cura\xc3\xa7ao and other Caribbean Islands vol. 52 no. 1, pp. 72-134
    Publication Date: 2024-01-12
    Description: 1. In this paper, a study of Rotifers has been made of extensive material, collected in the Caribbean province by Dr. P. WAGENAAR HUMMELINCK, between 1930 and 1973. 2. 64 species of Rotifers have been found. For 19 of these, particulars are given on their morphology, ecology and biogeographical distribution. 3. Lecane plesia MYERS 1936 has been redescribed; the taxonomical status of Hexarthra intermedia brasiliensis has been discussed. 4. Three new species have been described: Colurella althausae, Euchlanis perpusilla and Lecane hummelincki. 5. Comments are given on Brachionus calyciflorus with large postero-lateral spines and on a giant form of Tripleuchlanis plicata.
    Repository Name: National Museum of Natural History, Netherlands
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  • 99
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    In:  Studies on the Fauna of Cura\xc3\xa7ao and other Caribbean Islands vol. 53 no. 1, pp. 1-14
    Publication Date: 2024-01-12
    Description: A sponge collection dredged by Dr. P. WAGENAAR HUMMELINCK in the vicinity of Barbados (West Indies) contained a Cinachyralike specimen bearing large and conspicuous acanthoxea. This find induced the present author to re-examine all specimens with similar spiculation reported so far. A review of the literature revealed that a total of three such specimens has been described in two different genera, all as separate species, viz. Acanthotetilla hemisphaerica Burton, 1959, Acanthocinachyra enigmatica Levi, 1964, and Acanthocinachyra seychellensis Thomas, 1973. Both genera are reported to differ in the presence (genus Acanthocinachyra) or absence (genus Acanthotetilla) of sigmaspire microscleres. In view of the close similarity of the two genera it seemed wise to compare all the specimens.\nMiss S. M. STONE (British Museum (Natural History), London) kindly consented to the loan of the holotype of Acanthotetilla hemisphaerica; Dr. P. L. G. BENOIT (KOninklijk Museum voor Midden Afrika, Tervuren, Belgium) and Dr. C. L\xc3\x89VI (Mus\xc3\xa9um National d\xe2\x80\x99Histoire Naturelle, Paris) readily sent the specimens of Acanthocinachyra seychellensis and A. enigmatica, respectively. Dr. P. WAGENAAR HUMMELINCK (Zo\xc3\xb6logisch Laboratorium, State University of Utrecht) is kindly thanked for his donation of the West Indian collection. Scanning Electron Microscope illustrations were made by Drs. S. WEINBERG, the other photographic illustrations by Mr. L. A. VAN DER LAAN (both ZMA), which aid is gratefully acknowledged.
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  • 100
    Publication Date: 2024-01-12
    Description: A historical review is given of the literature oil Italian members of the genus Gammarus. Only three Gammarus species were known with certainty from Italy, viz G. fossarum Koch, 1836, G. lacustris G.O. Sars, 1863, and G. cf. balcanicus Sch\xc3\xa4ferna, 1922. G. fossarum is widely distributed in the northern part of Italy. Near the Yugoslavian border a member of the G. balcanicus-group sometimes coexists with this species. G. lacustris seems to be confined to mountain lakes. Some doubt remains about the identity of G. fontinalis A. Costa, 1883.\nDuring the present study a new species was found, G. italicus, inhabiting a restricted area in the central part of Italy and the northwestern part of Sardinia.
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