The Influence of the Incubation Temperature on the Body Length and the Yolk Sac Volume of Coregonus albula (L.) Eleutheroembryos
The Influence of the Incubation Temperature on the Body Length and the Yolk Sac Volume of Coregonus albula (L.) Eleutheroembryos
复制标题
孵化温度对刺五加胚胎体长和卵黄囊体积的影响
DOI:
10.1002/aheh.19840120609
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发表时间:
1984
期刊:
影响因子:
--
通讯作者:
A. Kirklewska
中科院分区:
文献类型:
--
作者:
M. Luczyński;M. Długosz;B. Szutkiewicz;A. Kirklewska
Eggs of Coregonus albula were incubated at temperatures of 1.1, 2.0, 4.9, 6.6, 8.4 and 9.9 °C. The successful hatching is optimum with 61 % at 4.9 °C; incubation time and period of hatching decrease significantly with rising temperature. The length of eleutheroembryos decreases with rising temperature, the yolk sac volume increases. Between the incubation time till hatching and the body length a significantly positive regression exists in the range of 4.9… 8.4 °C, for the yolk sac volume the regression is negative, it is significant in the range of 2.9… 6.6 °C; at the same time a negative regression exists between the yolk sac volume and the body length. Thus, low temperatures cause a delay of hatching, higher temperatures accelerate hatching and at the same time result in a reduced utilization of the yolk reserves. Besides these influences of temperature on the rate of ontogenetic processes, some autoecological consequences of the influence of temperature result, which have to be taken into account in further investigations.