Nasopharyngeal mites Halarachne halichoeri (Allman, 1847) parasitizing the gray seal Halichoerus grypus (Fabricius, 1791) in the Baltic Sea with notes on other parasitic Halarachnidae associated with marine mammals

Leszek Rolbiecki, Joanna N. Izdebska, Konrad Bidziński, Martyna Jankowska-Jarek

Halarachne halichoeri. A: female (dorsal view), B: female (ventral view), C: larva

Paper category: Original research paper
Corresponding author: Leszek Rolbiecki (l.rolbiecki@biol.ug.edu.pl)
DOI: 10.1515/ohs-2018-0037
Received: February 3, 2018
Accepted: March 16, 2018
Full text: here

Abstract

Parasitic arthropods of marine mammals are relatively poorly understood, with the least amount of data on the occurrence of parasitic arthropods in these hosts. Thus far, only seal lice Echinophthirius horridus (von Olfers, 1816) have been found in the Baltic seals, while there was no information about the presence of parasitic mites in these mammals. The nasopharyngeal mite Halarachne halichoeri (Allman, 1847) has recently been found in the gray seal Halichoerus grypus (Fabricius, 1791), representing a new species (and new genus) for the Polish fauna. Sixty three specimens were found in the nasal cavity and the trachea, including 18 females and 45 males. This is also the first documented record of Halarachnidae in seals of the Baltic Sea. A checklist of parasitic Halarachnidae known from marine mammals is also provided.

Department of Invertebrate Zoology and Parasitology, Faculty of Biology, University of Gdańsk, ul. Wita Stwosza 59, 80-308 Gdańsk, Poland
Department of Invertebrate Zoology and Parasitology, Faculty of Biology, University of Gdańsk, ul. Wita Stwosza 59, 80-308 Gdańsk, Poland
Department of Vertebrate Ecology and Zoology, Faculty of Biology, University of Gdańsk, ul. Wita Stwosza 59, 80-308 Gdańsk, Poland
Department of Vertebrate Ecology and Zoology, Faculty of Biology, University of Gdańsk, ul. Wita Stwosza 59, 80-308 Gdańsk, Poland

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