In Vitro Changes inToxorhynchites splendensGrowth and Fecundity Resulting from Brine Shrimp Consumption in Fresh and Brackish Water
作者:
Carl J. Jones,
期刊:
Environmental Entomology
(OUP Available online 1992)
卷期:
Volume 21,
issue 4
页码: 832-836
ISSN:0046-225X
年代: 1992
DOI:10.1093/ee/21.4.832
出版商: Oxford University Press
关键词: Insecta;Toxorhynchites splendens;biological control;reproduction
数据来源: OUP
摘要:
Artemia salina(L.) specimens were fed ad libitum toToxorhynchites splendens(Weidemann) larvae held at concentrations of 0-12‰ sea salt. Above 8‰, salt concentrations adversely affected both pupal weight and mean larval developmental period significantly. Adverse effects on postlarval stages included an expanded pupal period and decreased reproductive capacity. When nectar feeding was discontinued 24 h after the onset of reproduction, overall egg production was higher for adults resulting from larvae fedA.salinaat 8‰ than for adults resulting from larvae fed mosquitos in deionized water. Sugar deprivation significantly decreased both the survival and reproduction ofT. splendensreared at 10 and 12‰ salt more than other treatments.A. salinaappears to be a prey candidate for mass production ofT. splendensat saline levels<10‰. Reproductive potential and rate of increase were higher for predators given brine shrimp in 8‰ salt water than for those given mosquito larvae in deionized water.
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