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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.

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one publication added to basket [404710]

Hematodinium perezi (Dinophyceae: Syndiniales) in Morocco: The first record on the African Atlantic coast and the first country record of a parasite of the invasive non-native blue crab Callinectes sapidus Lamkhalkhal, A.; Rahmouni, I.; Selfati, M.; Hamid, A.; Kmentová, N.; Vanhove, M.P.M.; Bazairi, H. (2024). Hematodinium perezi (Dinophyceae: Syndiniales) in Morocco: The first record on the African Atlantic coast and the first country record of a parasite of the invasive non-native blue crab Callinectes sapidus. J. Mar. Sci. Eng. 12(7): 1045. https://dx.doi.org/10.3390/jmse12071045 In: Journal of Marine Science and Engineering. MDPI: Basel. ISSN 2077-1312; e-ISSN 2077-1312, meer

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Beschikbaar in	Auteurs
VLIZ: Open access 410634 [ download pdf ]

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Trefwoorden

Bioinvasion Parasites Africa, North Africa [Marine Regions] Marien/Kust

Author keywords

ITS1 rDNA; coastal lagoon

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Auteurs		Top
Lamkhalkhal, A. Rahmouni, I. Selfati, M. Hamid, A.	Kmentová, N., meer Vanhove, M.P.M., meer Bazairi, H.

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Abstract

Dinoflagellates belonging to the genus Hematodinium are key parasites of marine crustaceans, primarily decapods. In this study, we document the first report of H. perezi Chatton & Poisson, 1930 on the African Atlantic coast. This is also the first parasite record in the invasive non-native Atlantic blue crab Callinectes sapidus Rathbun, 1896 in Morocco. Specimens of C. sapidus were sampled in winter 2023 from two Ramsar sites on the Moroccan Atlantic, namely Merja Zerga and Oualidia Lagoons, and were screened to detect the presence of parasites in their hemolymph. Based on staining fresh hemolymph smears, we did not detect Hematodinium in any of the 36 investigated individuals (20 and 16 from Merja Zerga and Oualidia Lagoons, respectively), probably due to methodological artifacts. The PCR-based method was revealed to be more accurate in diagnosing the Hematodinium parasite. It showed that at Merja Zerga Lagoon, 13 individuals of C. sapidus were infected by the parasite (prevalence: 65%) in comparison to four at Oualidia Lagoon (25%). Genetic analysis, based on the ITS1 rDNA gene from Hematodinium, confirmed the sequences as being those of Hematodinium perezi.

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