Open WL Archief (OWA)

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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.

Basisinformatie over ‘Open Access to scholarly information'.

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one publication added to basket [2883]
Population biology of Anguillicola crassus in the final host Anguilla anguilla Thomas, K.; Ollevier, F.P. (1992). Population biology of Anguillicola crassus in the final host Anguilla anguilla. Dis. Aquat. Org. 14(3): 163-170. https://dx.doi.org/10.3354/dao014163 In: Diseases of Aquatic Organisms. Inter Research: Oldendorf/Luhe. ISSN 0177-5103; e-ISSN 1616-1580, meer

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Beschikbaar in	Auteurs
VLIZ: Open access 299071 [ download pdf ]

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Trefwoorden

Abundance Analysis > Mathematical analysis > Statistical analysis Anatomical structures > Body organs > Animal organs > Bladders > Swim bladder Diseases > Infectious diseases > Parasitic diseases Life history Parasites > Endoparasites Periodicity > Seasonality Population characteristics > Population density Anguilla anguilla (Linnaeus, 1758) [WoRMS]; Anguillicola crassus Kuwahara, Niimi & Itagaki, 1974 [WoRMS] België [Marine Regions] Marien/Kust; Brak water; Zoet water

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Auteurs		Top
Thomas, K. Ollevier, F.P., meer

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Abstract

Eels were sampled twice a month (March 1990 though March 1991) at the Kolenhaven (Albertcanal, Genk, Belgium) and examined for Anguillicola crassus nematodes in the swimbladder. Averaged over all samples, 90.2% of the 345 eels were infected with a mean intensity (averaged for all stages) of 17 nematodes. Thirty-one percent of all nematodes, which were adult worms or their remnants, were present in the swimbladder lumen, while the other 69% which consisted of the third or fourth larval stage and preadults were found in the swimbladder wall. No clear seasonal fluctuations in parasite prevalence or mean intensity were observed. Both L3-larvae and mature adult worms were present throughout the year. Eggs or L2-larvae were observed in 41% of the infected eels. This presence showed no seasonal pattern, though it was positively correlated with eel length: massive concentrations of L2-larvae were only found in eels bigger than 40 cm. A positive but weak correlation between eel length and number of adult nematodes in the swimbladder was significant, while no correlation was found between eel length and total parasite burden.

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