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  • 1
    Electronic Resource
    Electronic Resource
    Bacterial associations in the teredo Bankia australis (Lamellibranchia: Mollusca) (1973)
    Springer
    Marine biology 19 (1973), S. 338-340 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Electron microscope examination of the so-called “Gland of Deshayes” in the teredos Bankia australis and related species has revealed that this structure is not a glandular tissue, but represents associations of bacteria.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00348904
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  • 2
    Electronic Resource
    Electronic Resource
    A comparison of traditional, cluster and Zürich-Montpellier analyses of infaunal pelecypod associations from two adjacent sediment beds (1971)
    Springer
    Marine biology 8 (1971), S. 260-266 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A Zürich-Montpellier analysis provided more detailed information about pelecypod associations in two sediment beds than either a traditional subjective approach or a cluster analysis based on Jaccard's coefficient. The Zürich-Montpellier test separated till and sand pelecypod associations, and indicated distinguishing species and atypical samples. Species distinguishing the till association were Cardita ventricosa, Yoldia myalis, Semele rubropicta, Venerupis kennerlyi, Clinocardium nuttallii, Nuculana minuta and Macoma incongrua. Species distinguishing the sand were Macoma elimata, Compsomyax subdiaphana, Yoldia ensifera, Macoma calcarea, M. lipara, M. brota, Yoldia limatula and Macoma alaskana. Two samples contained species from both associations plus some species rare elsewhere. Combined R-and Q-type grouping procedures, of which the Zürich-Montpellier approach is an example, are useful in evaluating benthic faunal similarities, but the suitability of various forms of the procedure needs further study.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00355224
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Statistical models for estimating seawater metal concentrations from metal concentrations in mussels (Mytilus edulis) (1981)
    Springer
    Bulletin of environmental contamination and toxicology 27 (1981), S. 660-670 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Conclusions The results of this study have shown that field studies can be used to develop statistical models for estimating the concentration of trace metals in seawater knowing the concentration of metals in the mussels. Although only about 50% of the variance of the soluble metal and about 20% of the metal as SPM can be accounted for by the models there is no reason to doubt that better models can be obtained in the future ff parameters which reflect instantaneous effects are included. Such parameters could be measurements of the freshwater input as reflected by salinity and turbidity measured with sechi disk readings. Obviously one of the important variables to consider is salinity as both DAVENPORT (1977) and PHILLIPS (.1976) have shown that this variable affects copper and zinc uptake. These parameters could help solve the problem encountered in this study in which a constant bias is seen in the results: low concentrations of metals in the seawater are overestimated and high values are underestimated. Nevertheless the models presented in this paper can be considered as a first step in estimating time-integrated concentrations of trace metals using easily measured parameters in mussels collected in a natural environment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01611079
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Combined effect of body size, season, and location on trace element levels in mussels (Mytilus edulis) (1983)
    Springer
    Archives of environmental contamination and toxicology 12 (1983), S. 1-14 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract Specimens ofMytilus edulis (mussels) were collected at one-month intervals over a one-year period from two locations in Burrard Inlet, British Columbia, Canada and less frequently from other locations in the S.W. region of B.C., and analyzed for concentrations of Mn, Fe, Cu, Zn, Br, Pb, and Sr using X-ray energy spectroscopy. Size and condition of the mussels were recorded at the same time. The data were analyzed using multiple linear regression with size and season as predictor variables and trace metal contents as criterion variables. The values of the regression coefficients changed according to whether or not the mussels were collected from a polluted environment in disagreement with previously published studies. Principal component analysis of the correlation matrix of the variables yielded three principal components one of which can be used to ascertain whether or not mussels were collected from either a polluted or an unpolluted environment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01054995
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Arion ater (mollusca: pulmonata) as an indicator of terrestrial environmental pollution (1980)
    Springer
    Water, air & soil pollution 14 (1980), S. 115-124 
    Details
    ISSN: 1573-2932
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Using X-ray energy spectroscopy concentrations of Mn, Fe, Cu, Zn, As, Br, Ph, Rb, and Sr were measured in specimens of the terrestrial gastropod, Arion ater, found in locations close to and far from a highway. Higher values of Pb and Br were observed for specimens near the polluting source and mathematical analysis revealed an inverse relationship between lead uptake and uptake of Cu, Zn, and Sr. The data are used to demonstrate a classification procedure in which trace metal concentrations in Arion ater are used to assess environmental quality.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00291830
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Comparative morphometrics of the acrosomes of the sperms of “externally” and “internally” fertilizing sperms of the shipworms (teredinidae, bivalvia, mollusca) (1974)
    Springer
    Cell & tissue research 150 (1974), S. 291-297 
    Details
    ISSN: 1432-0878
    Keywords: Sperm ultrastructure ; Teredinidae ; Acrosome ; Fertilization ; Morphometrics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary A comparison among the sperm of eight species of teredos, four of which fertilize the eggs in the mantle cavity and four of which do not, revealed that externally fertilizing sperm have larger acrosomes and longer acrosomal rods than do internally fertilizing sperm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00220138
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    The fine structure of the oocyte of Bankia australis (Teredinidae, Bivalvia) before and after fertilization (1975)
    Springer
    Cell & tissue research 157 (1975), S. 521-534 
    Details
    ISSN: 1432-0878
    Keywords: Oocyte ; Bankia australis (Teredinidae) ; Fertilization ; Scanning and transmission electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The fine structure of the oocyte of Bankia australis is compared with that of other bivalve oocytes. It was observed that following fertilization, the microvilli changed their spatial organisation and behaviour towards sperm, the cortical granules disappeared in regions of high concentrations of supernumerary sperm, and the mitochondria apparently sta ted to divide.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00222604
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Location of glycogen in spermatids and spermatozoa of the shipworm, Bankia australis (Teredinidae, Bivalvia, Mollusca) (1975)
    Springer
    Cell & tissue research 164 (1975), S. 519-524 
    Details
    ISSN: 1432-0878
    Keywords: Spermiogenesis ; Bankia australis ; Glycogen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The periodic acid-thiocarbohydrazide-silver proteinate technique and α-amylase digestion were used to locate glycogen in the spermatids and sperms of the bivalve Bankia australis. Glycogen was found in the middle piece and around the acrosome in spermatozoa, apparently randomly scattered throughout the cytoplasm of young spermatids, and in a cytoplasmic bead in old spermatids.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00219942
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  • 9
    Electronic Resource
    Electronic Resource
    The acrosome reaction in the sperm of the shipworm Bankia australis calman (Bivalvia, Mollusca) (1974)
    Springer
    Cell & tissue research 151 (1974), S. 93-101 
    Details
    ISSN: 1432-0878
    Keywords: Acrosome reaction ; Bankia australis ; Teredo ; Fertilization ; Electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The ultrastructure of the acrosome reaction in the sperm of the teredo, Bankia australis, is described. In brief, the reaction consists of three phases: (a) formation of a bleb and membrane fusion, (b) disappearance of the longitudinally oriented fibrils, and (c) outward flaring and disappearance of the osmiophilic granule. The osmiophilic granule appears to consist of prism-like structures. The axial rod never lengthens during the acrosome reaction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00222037
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    Paper (German National Licenses)
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