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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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