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ARAI Tetsuo


Effects of a fluorescent lamp to embryo growth of Gryllodes sigillatus (Orthoptera:Gryllidae)

山口県立大学学術情報 Volume 9 Page 25-30
published_at 2016-03-31
04.gen_ARAI.pdf
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Title
カマドコオロギ Gryllodes sigillatus(Orthoptera:Gryllidae)の胚子発育に対する蛍光灯の影響
Effects of a fluorescent lamp to embryo growth of Gryllodes sigillatus (Orthoptera:Gryllidae)
Creators ARAI Tetsuo
Source Identifiers
Creator Keywords
カマドコオロギ 胚子発育 蛍光灯 死亡率 卵期間 Gryllodes sigillatus embryo growth fluorescent lamp mortality egg period
The influence of a fluorescent lighting on embryo growth in a cricket, Gryllodes sigillatus (Orthoptera:Gryllidae) was observed. The experiment was carried out using an incubator of 25°C(±1°C), and using a 10-watt fluorescent lamp. Eggs were placed at 10-, 20-, and 30cm distances from a fluorescent lamp. Eggs were transferred from continuous light(LL)(various periods) to continuous darkness(DD)(or vice versa), it was examined hatching rate and egg period. All eggs died regardless of the distance from the fluorescent lamp under LL. When eggs were transferred to DD following of 72h of LL, 93%-100% of them died. When transferred from LL of 24h or 48 h to DD, mortality tended to decrease as the distance from the fluorescent lamp. When transferred to LL after 120 h of DD, most of the eggs died. However, in the treatment involving 30cm distance from the fluorescent lamp, when transferred to LL after DD of 96h and 120h, eggs were slightly hatched. When eggs were transferred from LL to DD, egg period was not significantly different regardless of time spent in LL, but was about 10days longer than in DD. Similar results were observed in eggs moved from DD to LL conditions.
Languages jpn
Resource Type departmental bulletin paper
Publishers 山口県立大学
Date Issued 2016-03-31
File Version Version of Record
Access Rights open access
Relations
[ISSN]2189-4825