Data/hora: 03/06/2024 04:23:57

Provedor de dados: | Open Marine Archive
País: | Belgium
Título: | A demographic study of the life cycle of &lt;i&gt;Tisbe furcata&lt;/i&gt; (Baird, 1837) (Copepoda: Harpacticoida)
Autores: | Bergmans, M.
Data: | 1981
Ano: | 1981
Palavras-chave: | Life cycle Tisbe furcata (Baird; 1837) ANE; Belgium; Oostende; Sluice Dock.
Resumo: | The life-cycle of the harpacticoid copepod &lt;i&gt;Tisbe furcata&lt;/i&gt; (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 &lt;i&gt;r&lt;sub&gt;m&lt;/sub&gt;&lt;/i&gt; = 0.233 day&lt;sup&gt;-1&lt;/sup&gt;; net reproductive rate &lt;i&gt;R&lt;sub&gt;0&lt;/sub&gt;&lt;/i&gt; = 94; minimum generation time &lt;i&gt;T&lt;sub&gt;min&lt;/sub&gt;&lt;/i&gt; = 14.9 days; parameters related to "generation time": &lt;i&gt;T&lt;/i&gt; = 19.5 days, &lt;i&gt;T(mean)&lt;/i&gt; = 16.4 days, &lt;i&gt;T&lt;sub&gt;e&lt;/sub&gt;&lt;/i&gt; = 25.4 days.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3705
Fonte: | %3Ci%3EJ.+Mar.+Biol.+Ass.+U.K.+61%3C%2Fi%3E%3A+691-705
Fonte: | info:eu-repo/semantics/restrictedAccess