Molecular identification of ascaridoid nematodes from the deep-sea onion-eye grenadier (Macrourus berglax) from the East Greenland Sea

Molecular genotyping of Anisakis Dujardin, 1845 (Nematoda: Ascaridoidea: Anisakidae) larvae from marine fish of Balinese and Javanese waters, Indonesia

“…Larvae hatch as free living third-stage larvae (L3), still surrounded by the sheath of the second-stage larvae (L2), and get eaten by small crustaceans (copepods, euphausiids) Palm 2006). The life-cycle is completed when the definitive host preys upon infected crustaceans, cephalopods or fish (Kellermanns et al, 2007). The stomach of the studied A. rochei rochei was filled with small crustaceans and only few small sized fish, and D. russelli preyed upon small crustaceans as well.…”

“…Mattiucci et al, (2002) already stated a high similarity of her studied specimens, despite being geographically quite distant. Kellermanns et al (2007) suggested that a constant gene flow in different anisakid nematodes is caused by a) extensive final host migration in the case of A. simplex (s.s.), b) an overlapping distribution of final host populations along the continental shelves for Pseudoterranova decipiens (s.s.), and c) a low host specificity and large population size in the intermediate and final hosts for Hysterothylacium aduncum. Palm et al (2007) suggested d) extensive final as well as intermediate host migration as being responsible for a high gene flow in a cosmopolitan fish cestode, the trypanorhynch Tentacularia coryphaenae.…”

“…The nematode eggs of the congener A. simplex (s.s.) leave their hosts with the faeces and embryonate in seawater (e.g. Klimpel et al, 2004;Kellermanns et al, 2007). Larvae hatch as free living third-stage larvae (L3), still surrounded by the sheath of the second-stage larvae (L2), and get eaten by small crustaceans (copepods, euphausiids) Palm 2006).…”

Anisakis (Nematoda: Ascaridoidea) from Indonesia

“…They can be transferred further into larger transport hosts without moult, acquiring high numbers in these hosts (Jakob & Palm 2006). The life cycle is completed when the definitive hosts preys upon infected crustaceans, cephalopods or fishes (Kellermanns et al 2007). The stomach of the studied Auxis rochei rochei by Palm et al (2008) was filled with small crustaceans and only a few smallsized fish, and Decapterus russelli as a common host preyed upon small crustaceans as well.…”

Ege Bölgesi Akarsularında Yakalanan Avrupa Yılan Balıklarında (Anguilla anguilla Linnaeus, 1758) Raphidascaris acus Bloch, 1779 (Nematoda: Anisakidae)’un İlk Moleküler Karakterizasyonu

“…However, to date there has not been any study regarding molecular characterization of R. acus from fish caught off the Turkish waters. Recently, molecular techniques, using DNA sequencing of the nuclear ribosomal DNA spacers, have been proven to be particularly useful for the accurate identification of ascaridoid nematodes at the species level for eggs, larvae, and adults [5][6][7][8][9][10][11][12] . Nevertheless, before the present study, there had been no reports of characterizing the R. acus from the Turkish waters using well-defined internal transcribed spacers (ITS1 and ITS2) and 5.8S region sequence.…”