The abundance and larval performance of Aedes phoeniciae in supralittoral rock-pools

Sahar Rosenfeld; Leon Blaustein; Jamie Kneitel; Claire Duchet; Rael Horwitz; Olga Rybak; Antonina Polevikov; Eyal Rahav

doi:10.1007/s10750-019-04063-6

The abundance and larval performance of Aedes phoeniciae in supralittoral rock-pools

Sahar Rosenfeld, Leon Blaustein, Jamie Kneitel, Claire Duchet, Rael Horwitz, Olga Rybak, Antonina Polevikov, Eyal Rahav

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

The mosquito Aedes phoeniciae is a potential disease vector that inhabits the coastal rock-pools of the Southeastern Mediterranean Sea. Our year-long study examined the abundance and distribution of Ae. phoeniciae in 49 rock-pools along HaBonim Beach Nature Reserve (Israeli coast) on a monthly basis (September 2016 to August 2017). Additionally, the physical, chemical, and biological characteristics of the rock-pools were measured. Our results showed a correlation between the abundance of Ae. phoeniciae and abiotic (salinity, pool volume, and pH) and biotic (bacterial, micro-phytoplankton, and chironomid abundance) characteristics. A complementary experiment was conducted to examine the role of bacteria and phytoplankton on Ae. phoeniciae larval performance by rearing larvae in seawater (SW) or seawater without microbes (FSW, 0.2-µm). Ae. phoeniciae grown in SW exhibited a high survivorship rate (~ 77%), while lower survivorship rate was measured in the FSW treatments (~ 45%). Furthermore, a higher number of adult females were found in the SW compared to FSW treatments (35 and 11, respectively), while the number of male adults remained similar. Our results suggest that Ae. phoeniciae larvae rely on the water characteristics and especially on the microbial communities that habitat the rock-pools. These results may enable improved mosquito control of Ae. phoeniciae along the Southeastern Mediterranean Sea.

Original language	English
Pages (from-to)	181-192
Number of pages	12
Journal	Hydrobiologia
Volume	846
Issue number	1
DOIs	https://doi.org/10.1007/s10750-019-04063-6
State	Published - 1 Dec 2019
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2019, Springer Nature Switzerland AG.

Funding

We are most grateful to Valentina Rovelli, Nadav Pezaro, Luca Zoccarato, Martina Mulas, and Alvaro Israel for their help. This work was supported by an Israel Science Foundation Grant 891/2012 awarded to LB and by a Ministry of Environmental Protection Grant (Number 145–1–2) awarded to ER. JK was supported by the Fulbright Scholar Program and the United States-Israel Educational Foundation. This study is in partial fulfillment of an MSc thesis of Sahar Rosenfeld from the University of Haifa. We are most grateful to Valentina Rovelli, Nadav Pezaro, Luca Zoccarato, Martina Mulas, and Alvaro Israel for their help. This work was supported by an Israel Science Foundation Grant 891/2012 awarded to LB and by a Ministry of Environmental Protection Grant (Number 145–1–2) awarded to ER. JK was supported by the Fulbright Scholar Program and the United States-Israel Educational Foundation. This study is in partial fulfillment of an MSc thesis of Sahar Rosenfeld from the University of Haifa.

Funders	Funder number
United States - India Educational Foundation
Ministry of Environmental Protection	145–1–2
Israel Science Foundation	891/2012
University of Haifa

Keywords

Aedes mariae complex
Coastal rock-pools
Israeli coast
Supralittoral rock-pools

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10.1007/s10750-019-04063-6

Cite this

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abstract = "The mosquito Aedes phoeniciae is a potential disease vector that inhabits the coastal rock-pools of the Southeastern Mediterranean Sea. Our year-long study examined the abundance and distribution of Ae. phoeniciae in 49 rock-pools along HaBonim Beach Nature Reserve (Israeli coast) on a monthly basis (September 2016 to August 2017). Additionally, the physical, chemical, and biological characteristics of the rock-pools were measured. Our results showed a correlation between the abundance of Ae. phoeniciae and abiotic (salinity, pool volume, and pH) and biotic (bacterial, micro-phytoplankton, and chironomid abundance) characteristics. A complementary experiment was conducted to examine the role of bacteria and phytoplankton on Ae. phoeniciae larval performance by rearing larvae in seawater (SW) or seawater without microbes (FSW, 0.2-µm). Ae. phoeniciae grown in SW exhibited a high survivorship rate (~ 77%), while lower survivorship rate was measured in the FSW treatments (~ 45%). Furthermore, a higher number of adult females were found in the SW compared to FSW treatments (35 and 11, respectively), while the number of male adults remained similar. Our results suggest that Ae. phoeniciae larvae rely on the water characteristics and especially on the microbial communities that habitat the rock-pools. These results may enable improved mosquito control of Ae. phoeniciae along the Southeastern Mediterranean Sea.",

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The abundance and larval performance of Aedes phoeniciae in supralittoral rock-pools

Abstract

Bibliographical note

Funding

Keywords

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