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 journalArticlepeer-review

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 languageEnglish
Pages (from-to)181-192
Number of pages12
JournalHydrobiologia
Volume846
Issue number1
DOIs
StatePublished - 1 Dec 2019

Bibliographical note

Funding Information:
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.

Funding Information:
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.

Publisher Copyright:
© 2019, Springer Nature Switzerland AG.

Keywords

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

ASJC Scopus subject areas

  • Aquatic Science

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