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  • 1
    Electronic Resource
    Electronic Resource
    A long-term view of density-dependent recruitment in smallmouth bass from Nebish Lake, Wisconsin (2000)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 56 (2000), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: In a closed population of smallmouth bass Micropterus dolomieui during a 9-year period in Nebish Lake, Wisconsin, total egg production in spring, the percentage of constructed nests that receive eggs, and the mean number of eggs/nest were inversely related to spawning stock biomass. Yet, there was no relationship between total egg production or spawning stock biomass and total young-of-the-year production in autumn of the same year. Together, these results suggest that density-dependent processes regulate egg production, but not young-of-the year production, in smallmouth bass.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.2000.tb00754.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Mitochondria-dividing ring: ultrastructual basis for the mechanism of mitochondrial division inCyanidioschyzon merolae (1995)
    Springer
    Protoplasma 186 (1995), S. 12-23 
    Details
    ISSN: 1615-6102
    Keywords: Mitochondrion-dividing ring ; Plastid-dividing ring ; Mitochondrial division ; Plastid division ; Microbody ; Cyanidioschyzon merolae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary We present strong electron microscopic evidence that the mitochondrial-dividing ring (MD-ring) forms as a closed ring about 50 nm wide and 10 nm thick, at the contact point where the micro-body attaches to the mitochondrion. This ring forms in the cytoplasm around an equatorial plane perpendicular to the major axis of a mitochondrion. As the MD-ring increases in both width and thickness, the mitochondrion becomes dumbbell-shaped with a narrow interconnecting isthmus. Then, by successive contractions of the ring, the dumbbell-shaped mitochondrion separates to generate two daughter mitochondria. We also observed formation of an electron dense plastid-dividing ring (PD-ring) during plastid divisions. We noted too the behaviour of the MB in relation to the contraction of MD-rings and PD-rings.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01276930
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    Paper (German National Licenses)
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