Influence of Temperature on the Growth, Coenosarc Pulsations, and Hydroplasm Movement in the Colonial Hydroid Dynamena pumila (L., 1758)
- 作者: Dementyev V.1, Marfenin N.1
-
隶属关系:
- Department of Invertebrate Zoology, Biology Faculty, Moscow State University
- 期: 卷 9, 编号 5 (2019)
- 页面: 432-452
- 栏目: Article
- URL: https://journals.rcsi.science/2079-0864/article/view/207066
- DOI: https://doi.org/10.1134/S2079086419050037
- ID: 207066
如何引用文章
详细
The dependence of the growth and functioning of the transport system of colonial organisms on water temperature has been studied. Time-lapse microvideo recording was used to measure the coenosarc pulsations of the stolon and shoot in the colonial hydroid Dynamena pumila (L., 1758) reared in seawater at 10, 15, 20, 25, and 28°C. As a result, it was possible to determine that microvideo recording of coenosarc pulsations made it possible to track the colony reaction to temperature change for 2 h. The reaction of growth pulsations, lateral pulsations, and hydroplasmtic flows to the changes in the water temperature turned out to be nonlinear. The reaction of the stolon to the changes in the water temperature was more pronounced than those in the shoot. The optimal temperature range was 10–20°C, which displayed the highest growth rate, the most intensive hydroplasm movements, and the largest volume of transferred hydroplasm. At 28°C, the pulsations of the stolon coenosarc became unstable, the growth tended to slow, and the hydroplasm movements were less active. Consequently, according to the results of analysis of coenosarc pulsations, the upper temperature limit of normal life activity for D. pumila colonies inhabiting the White Sea was 25–28°C.
作者简介
V. Dementyev
Department of Invertebrate Zoology, Biology Faculty, Moscow State University
Email: marf47@mail.ru
俄罗斯联邦, Moscow, 119991
N. Marfenin
Department of Invertebrate Zoology, Biology Faculty, Moscow State University
编辑信件的主要联系方式.
Email: marf47@mail.ru
俄罗斯联邦, Moscow, 119991