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New and ‘visiting’ fish species collected off the Western coast of Poland (Baltic Sea) in 2007–2008 with a description of their parasite fauna

100%

Wiecaszek B., Sobecka E., Dudko S., Keszka S.

Oceanologia

2011

tom 53

nr 1

The first occurrence of striped red mullet Mullus surmuletus in the Pomeranian Bay (in 2007) and the occurrence of three very rarely noted species (tub gurnard Chelidonichthys lucerna, Atlantic horse mackerel Trachurus trachurus, thicklip grey mullet Chelon labrosus) collected in 2007–2008 in the Pomeranian Bay, Szczecin Lagoon and Lake Dąbie are reported. Their expansion is probably due to increased sea temperatures resulting from climate change, as well as the inflow of saline water. The ‘visitors’ hosted eight pathogens from four taxonomic groups: Protozoa, Nematoda, Acanthocephala and Mollusca. Nematodes, the most numerous ones, were found in three host species. All the parasite species were new for the hosts examined; only the larvae of the acanthocephalan Corynosoma strumosum had already been recorded in one of the hosts (Chelidonichthys lucerna). The stomachs of almost all the fish examined were empty, but the species composition of the parasite fauna found showed that the fish must have ingested some food in the Pomeranian Bay.

The myxosporean parasitofauna of the Atlantic horse mackerel, Trachurus trachurus [L.] in the North-East Atlantic Ocean and Mediterranean Sea

100%

Campbell N.

Acta Parasitologica

2005

tom 50

nr 2

As part of a multidisciplinary stock identification study 1002 horse mackerel Trachurus trachurus (L.) from 12 sites in the North-East Atlantic and Mediterranean Sea were examined for the presence of myxosporean parasites, with the aim of identifying species that could be used as biological tags. Five species of myxosporean parasites were found. Examination of gall bladders revealed infections with Alataspora serenum, A. solomoni and an unidentified Kudoa sp., while Kudoa nova was found in the red muscles. The liver of a single fish was found to be infected with Myxobolus spinacwvatura. Infection with A. solomoni and M. spinacurvatura represents new host records. Kudoa sp. is likely to be a previously undescribed species. A. serenum, A. solomoni and K. nova are shown to be potentially useful tags for stock identification.

Ograniczanie wyników

1 Acta Parasitologica

1 Oceanologia

1 Campbell N.

1 Dudko S.

1 Keszka S.

1 Sobecka E.

1 Wiecaszek B.

1 2011

1 2005

Wyniki wyszukiwania

New and ‘visiting’ fish species collected off the Western coast of Poland (Baltic Sea) in 2007–2008 with a description of their parasite fauna

The myxosporean parasitofauna of the Atlantic horse mackerel, Trachurus trachurus [L.] in the North-East Atlantic Ocean and Mediterranean Sea