First record and evidence of an established population of the North American mud crab Dyspanopeus sayi (Brachyura: Heterotremata: Panopeidae) in the western Mediterranean

Schubart, Christoph D. and Guerao, Guillermo and Abello, Pere (2012) First record and evidence of an established population of the North American mud crab Dyspanopeus sayi (Brachyura: Heterotremata: Panopeidae) in the western Mediterranean. SCIENTIA MARINA, 76 (1). pp. 79-85. ISSN 0214-8358, 1886-8134

Full text not available from this repository. (Request a copy)

Abstract

The panopeid crab Dyspanopeus sayi (Smith, 1869) is reported here from the Ebro Delta (Mediterranean coast of the Iberian Peninsula). Originally endemic to the Atlantic coast of North America, D. sayi was involuntarily introduced into Britain, France and the Netherlands, and into the Adriatic and Black Sea within the last thirty years. Here we provide the first record of this species from the western Mediterranean Sea. Occurrences of ovigerous females at different localities of the delta and in different years provide evidence that the population is well established. Mitochondrial DNA confirms the identity of the species and indicates that the introduced population consists of at least three female lineages. The first zoeal stage of D. sari was obtained in the laboratory from an ovigerous female captured in August 2010 with embryos in an advanced stage of development. The morphology of the zoea I is described here in detail and is similar to the one previously reported for native populations.

Item Type: Article
Uncontrolled Keywords: UNITED-STATES; BAY; CRUSTACEANS; PREDATION; ATLANTIC; IMPACTS; Dyspanopeus sayi; alien species; Mediterranean; Ebro Delta; mtDNA sequences; zoea
Subjects: 500 Science > 570 Life sciences
500 Science > 590 Zoological sciences
Divisions: Biology, Preclinical Medicine > Institut für Zoologie
Biology, Preclinical Medicine > Institut für Zoologie > Zoologie/Evolutionsbiologie (Prof. Dr. Jürgen Heinze)
Depositing User: Dr. Gernot Deinzer
Date Deposited: 19 May 2020 04:58
Last Modified: 19 May 2020 04:58
URI: https://pred.uni-regensburg.de/id/eprint/19136

Actions (login required)

View Item View Item