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A demographic study of the life cycle of Tisbe furcata (Baird, 1837) (Copepoda: Harpacticoida)
Bergmans, M. (1981). A demographic study of the life cycle of Tisbe furcata (Baird, 1837) (Copepoda: Harpacticoida). J. Mar. Biol. Ass. U.K. 61: 691-705. https://dx.doi.org/10.1017/S0025315400048141
In: Journal of the Marine Biological Association of the United Kingdom. Cambridge University Press/Marine Biological Association of the United Kingdom: Cambridge. ISSN 0025-3154; e-ISSN 1469-7769, more
Peer reviewed article  
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Keywords
    Cycles > Life cycle
    Tisbe furcata (Baird, 1837) [WoRMS]
    ANE, Belgium, Oostende, Sluice Dock [Marine Regions]
    Marine/Coastal
Author  Top 
Abstract
    The life-cycle of the harpacticoid copepod Tisbe furcata (Baird, 1837) at 18°C was studied quantitatively. Stage durations were determined by two different methods, using synchronous cohorts. Combined nauplius stages last for 80.4h; the successive copepodite stages take 23.0, 23.2, 28.0 (females) to 23.2 (males), 33.4 (females) to 24.2 (males) and 48.8 (females) to 34.7 (males) h, respectively. Females develop more slowly but more synchronously than males. Age-specific survival and fertility rates were used to calculate the stable stage distribution in an exponentially growing population. From life-table data the following demographic parameters were computed: intrinsic rate of natural increase rm = 0.233 day-1; net reproductive rate R0 = 94; minimum generation time Tmin = 14.9 days; parameters related to "generation time": T = 19.5 days, T(mean) = 16.4 days, Te = 25.4 days.
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