Distribution of <i>Contracaecum</i> (Nematoda: Anisakidae) larvae in freshwater fish from the northern regions of South Africa

Tavakol, Sareh; Smit, Willem J.; Sara, Joseph R.; Halajian, Ali; Luus‐Powell, Wilmien J.

doi:10.1080/15627020.2015.1052302

Cited by 16 publications

(14 citation statements)

References 23 publications

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“…accumulate mostly in the mesentery and the intestinal serosa of fish but may also reside in the intestinal wall and liver. The genus Contracaecum has a worldwide distribution and includes a range of species which are commonly found in fish serving as paratenic hosts and employ warm-blooded animals (birds, pinnipeds) as final hosts (Mattiucci and Nascetti 2008; Aydogdu et al 2011; Waicheim et al 2014; Corrêa et al 2015; Tavakol et al 2015; Dezfuli et al 2016; Zuo et al 2018). When teleosts are infected by anisakid nematode larvae, they often react by enclosing the worm in a layer of host cells forming a granuloma (Buchmann 2012; Santoro et al 2013; Corrêa et al 2015; Dezfuli et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Differential survival of 3rd stage larvae of Contracaecum rudolphii type B infecting common bream (Abramis brama) and common carp (Cyprinus carpio)

et al. 2019

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The main fish host reaction to an infection with third stage anisakid nematode larvae is a response in which host immune cells (macrophages, granulocytes, lymphocytes) in affected internal organs initially are attracted to the parasite whereafter fibroblasts may enclose the parasite forming granuloma. Generally, the reaction is non-lethal to the parasite which may survive for years in the fish host retaining infectivity to the final host. This may also apply for the anisakid nematode Contracaecum rudolphii (having the adult stage in cormorants, using copepods as first intermediate/paratenic host and zooplankton feeding fish as paratenic hosts). The present study has shown that most Contracaecum rudolphii larvae survive in bream (Abramis brama) (from Lake Balaton, Hungary) whereas the majority of the nematode larvae die in Cyprinus carpio (from Lake Hévíz, directly connected to Lake Balaton). Both cyprinid host species interacted with the nematode larvae through establishing a marked cellular encapsulation around them but with different effects. The differential survival in common carp and bream may theoretically be explained by ecological factors, such as the environmental temperature which either directly or indirectly affect the development of nematode larvae, and/or intrinsic host factors, such as differential immune responses and host genetics.

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Section: Introductionmentioning

confidence: 99%

Differential survival of 3rd stage larvae of Contracaecum rudolphii type B infecting common bream (Abramis brama) and common carp (Cyprinus carpio)

et al. 2019

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“…While all parasitic genera belonging to the phylum Nematoda should be identified in or on the internal organs of their fish hosts, such as the intestine, some genera were identified on the skin mucus ( Acanthocheilus , Dichelyne , Cystidicola , Hysterothylacium and Aonchotheca ) and also on gills ( Contracaecum , Cucullanus , Cystidicola and Aonchotheca ). Among parasitic nematodes, some have an indirect life cycle, which means that they need several successive hosts to complete their life cycle and reach the adult stage [70,76,129]. This is the case for seven genera of nematodes found in the present study, identified on the gills or skin of fish (Table 3): the intermediate host is usually a crustacean (isopods, amphipods, copepods, decapods) and the final host is a teleost [69,76,130–134].…”

Section: Discussionmentioning

confidence: 99%

Characterization of ecto- and endoparasite communities of wild Mediterranean teleosts by a metabarcoding approach

et al. 2019

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Next‐generation sequencing methods are increasingly used to identify eukaryotic, unicellular and multicellular symbiont communities within hosts. In this study, we analyzed the non-specific reads obtained during a metabarcoding survey of the bacterial communities associated to three different tissues collected from 13 wild Mediterranean teleost fish species. In total, 30 eukaryotic genera were identified as putative parasites of teleosts, associated to skin mucus, gills mucus and intestine: 2 ascomycetes, 4 arthropods, 2 cnidarians, 7 nematodes, 10 platyhelminthes, 4 apicomplexans, 1 ciliate as well as one order in dinoflagellates (Syndiniales). These results highlighted that (1) the metabarcoding approach was able to uncover a large spectrum of symbiotic organisms associated to the fish species studied, (2) symbionts not yet identified in several teleost species were putatively present, (3) the parasitic diversity differed markedly across host species and (4) in most cases, the distribution of known parasitic genera within tissues is in accordance with the literature. The current work illustrates the large insights that can be gained by making maximum use of data from a metabarcoding approach.

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“…All the parasite variables of prevalence, mean abundance, number of parasite sampled by reservoir and number of infected fish can be seen in Table 1. (Hoffman, 1999;Tavakol et al, 2015). The same is true for the monogenean O. principalis (Galaviz-Silva et al, 2016).…”

Section: Resultsmentioning

confidence: 61%

“…Although more studies need to be done to confirm both infections, we cannot discard the possibility of a co-introduction event in the case of H. brachyurum and a spillback event for P. peraccuratus (Kelly et al, 2009). In relation to Contracaecum sp., its larval stage is very generalist and are globally distributed, once its final host are mainly piscivorous birds (Madi & Silva, 2005;Takemoto et al, 2009;Tavakol et al, 2015). This parasite has a complex life cycle, and M. salmoides, among other intermediary host, has its infection influenced by its trophic level; i.e.…”

Section: Resultsmentioning

confidence: 99%

Helmintos Parásitos De Micropterus Salmoides (Lacepéde, 1802) Una Especie Invasora en Brasil: Un Caso De Co-Introducción Y Spillback

Costa¹,

Takemoto²,

Vitule³

2020

Neotrop Helminthol

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La perca americana, Micropterus salmoides (Lacepéde, 1802), es un pez centrarchido de América del Norte que ahora tiene una distribución global debido a introducciones extendidas por pesca deportiva. Su introducción en Brasil data de 1920, principalmente en las regiones del sur. Sabemos que M. salmoides ha generado una serie de impactos en los ecosistemas en que se ha establecido. Sin embargo, sus parásitos en Brasil son desconocidos. Esto genera la posibilidad de nuevas interacciones y potenciales impactos. Por tanto, el objetivo de este estudio fue analizar los parásitos de M. salmoides en cuatro reservorios de agua en el sur de Brasil, midiendo la prevalencia y la abundancia media en cada reservorio. Analizamos un total de 59 individuos de M. salmoides, 15 en cada reserva, con excepción de la reserva Capivari-Cachoeira, con 14 individuos. De los peces analizados, 91,5% estaban parasitados por 1567 parásitos pertenecientes a cuatro especies, tres nemátodos: Contracaecum sp. (86,4%) en larvas, Procamallanus (Procamallanus) peraccuratus Pinto, Fábio, Noronha y Rolas 1976 (6,7%) y Hysterothylacium brachyurum Ward & Magath 1917 (6,7%), y una especie de monogenoideo Onchocleidus principalis (Mizelle, 1936) (57,6 %). De estos resultados podemos concluir que el proceso de co-introducción y “spillback” aún está en etapas tempranas, en la mayoría de las veces por la baja diversidad de parásitos. Sin embargo, el monitoreo y las acciones de control son altamente recomendadas para controlar los impactos de infecciones por parásitos y promover actividades de mitigación y campañas de prevención.

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Distribution of Contracaecum (Nematoda: Anisakidae) larvae in freshwater fish from the northern regions of South Africa

Cited by 16 publications

References 23 publications

Differential survival of 3rd stage larvae of Contracaecum rudolphii type B infecting common bream (Abramis brama) and common carp (Cyprinus carpio)

Differential survival of 3rd stage larvae of Contracaecum rudolphii type B infecting common bream (Abramis brama) and common carp (Cyprinus carpio)

Characterization of ecto- and endoparasite communities of wild Mediterranean teleosts by a metabarcoding approach

Helmintos Parásitos De Micropterus Salmoides (Lacepéde, 1802) Una Especie Invasora en Brasil: Un Caso De Co-Introducción Y Spillback

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