of the Gambusia species introduced in Italy
Stefano Valdesalici * & Diego Montanari**
* Via Cà Bertacchi N.5, 42030
Viano (RE), Italy. Email: email@example.com
was one of the first country where Gambusia species was introduced
as mosquito control agent at the start of last century. This species is
here identified by the structure of the males gonopodium.
45 valid species belong to the genus Gambusia (Page
et al.1991; Lydeard et al.1995; Lucinda 2003) and are widely spread in
North, Central and South
America, Caribean islands included.
specimens of 4 different populations, from all the
Italian territory (north, south and Islands), was collected with
the help of hand dip net and then preserved in alcohol.
localities of collections were:
Anna, June 2004, 44°36’25” N 11°01’05”E ),
zoologico, April 2005, 38°06’56”N 13°21’40”E),
Lecce (ponds near University, May 2005, 40°21’12”N 18°10’26”E)
Cagliari ( collected on February 2006, Lago Poggio dei Pini,
39° 08' 48" N 8° 58' 29"E).
order to examine the gonopodium, and take a photograph of it, each
specimen was taken from the test tube containing the alcoholic solution
and then washed with pure water.
the specimens we tested, by taking photographs of their gonopodium, show
clearly that the distal segments of the most ventral element of the
gonopodium, is finely serrate dorsally.
want to thank Fracesco Denitto, Federico Marrone, Michele Silvestri and
Alessandro Spiga for the preserved specimens. Thanks to Daniele Cavazzoni
for assistance in preparing the first draft of the manuscript
to Alessandro Tozzi and Alessandro Spiga for the pictures .
thank the Animal Biology and Ecology department of the Università degli
Studi di Cagliari, in particular Dr. Marisa Gaviano, who allowed us to
work with microscopes for this research.
|Gonopodium structure in G. affinis|
|Gonopodium structure in G. holbrooki|
|Gonopodium structure in Cagliari population|
|Gonopodium structure in Palermo population|
|Gonopodium structure in Lecce population|
|Gonopodium structure in Modena population|