Testing for deterministic succession in metazoan parasite communities of marine fish

Espínola‐Novelo, Juan F.; González, María Teresa; Pacheco, Aldo S.; Luque, José L.; Oliva, Marcelo E.

doi:10.1111/ele.13463

Cited by 10 publications

(4 citation statements)

References 88 publications

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“…However, it has been recently shown that α TD of parasite communities is determined by host age-class like an ecological succession of communities of free-living organisms. Thus, if hosts of different age-classes were analysed together it could mask an actual deterministic pattern of parasite community assemblage (Espínola-Novelo et al, 2020). Nonetheless, we consider that this is not a likely scenario in this study since parasite communities were mainly sampled from fish of two consecutive age-classes out of nine (classes 3 and 4 according to those described for M. cephalus in Espínola-Novelo et al, 2020).…”

Section: Discussionmentioning

confidence: 96%

Assembly rules of helminth parasite communities in grey mullets: combining components of diversity

Llopis‐Belenguer

Pavoine

Blasco‐Costa

et al. 2020

International Journal for Parasitology

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Organisms associate themselves in ecological communities. It has been widely debated whether these associations are explained by deterministic or, in contrast, random processes. The answer may vary depending on the level of an organisational scale (α, β and γ) and the facet of diversity considered: Taxonomic (TD), Functional (FD) and Phylogenetic (PD). Diversity at the sampling unit (i.e. host individual) is the α diversity; β diversity represents the extent of dissimilarity in diversity among sampling units (within a level of an organisational scale, β1; between levels of an organisational scale, β2); and the total diversity of a system is γ diversity. Thus, the combination of facets and levels of scale may be useful to disentangle the mechanisms driving the composition of a parasite community. Using helminth parasite TD, FD, and a Proxy of PD (PPD) of three species of grey mullets (Teleostei: Mugilidae) from the Mediterranean Sea, we show that random and deterministic processes of different nature explain the assemblage of parasite communities. The parasite community at a host individual (α) was invariably a random subset of the total diversity in the community for the three facets of diversity. At β1 level, TD was lower than expected by chance, whereas FD and PPD were random. At β2, diversity patterns suggested environmental filtering of the parasite assemblage: species, trait, and phylogenetic compositions of parasite communities seem to depend primarily on the species of host, but also on the locality and season. Our study shows that parasite communities are not totally understood if any of the components (i.e. facets and levels) of diversity is neglected.

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Section: Discussionmentioning

confidence: 96%

Assembly rules of helminth parasite communities in grey mullets: combining components of diversity

Llopis‐Belenguer

Pavoine

Blasco‐Costa

et al. 2020

International Journal for Parasitology

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“…On the other hand, the fish sampled during the two sample times were possibly a heterogeneous group of ages (1 to 3 years) with lengths ranging from 20 to 30 cm according to those reported by Knaggs & Parrish (1973) and Schaefer (1980) . Espínola-Novelo et al . 2020 indicated that a seriated pattern of succession was detected in host species with a higher number of age-classes, which increased the probability of obtaining a more accurate estimate of the total number of parasite species that one host species can harbor along their ontogeny.…”

Section: Discussionmentioning

confidence: 99%

Parasitic load of the Pacific mackerel, Scomber japonicus (Pisces: Scombridae) from Northwestern Baja California, Mexico

Vivanco-Aranda,

Tanahara,

Del Rio-Zaragoza

2023

Helminthologia

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Summary Globally, the exploitation of small pelagic fish, like Pacific mackerel is of great importance due to food industry demand. However, there are few studies regarding its parasites load and there are no in this geographic zone. This study aimed to assess the parasitic composition, some temporal changes (during spring and summer) in abundance, prevalence and intensity of infection parasitic of the Pacific mackerel (Scomber japonicus) from Todos Santos Bay, Baja California, Mexico. The parasite fauna of the Pacific mackerel consisted of 1930 parasites (1413 in spring and 517 in summer) distributed in the follow taxa: an Tetraphyllidea (Cestoda), Kuhnia scombri (Monogenea), Didymozoidae (Digenea), Anisakis sp. (Nematoda), Rhadinorhynchus sp. (Acanthocephala) and Caligus pelamydis (Copepoda). The nematodes parasite were the most abundant both in spring with a mean abundance of 27.6 parasites and in summer 8.2 parasites compared with the other taxa like Cestoda, Monogenea, Digenea, Acanthocephala and Copepoda (P = 0.003). The mean intensity of the nematodes in spring and summer was 28.1 and 13.4, respectively. The nematodes prevalence was 90 % in spring and 60 % in summer. In general, the parasite load is more abundant in spring than summer. In summer, absence of taxa as Cestoda and Copepoda were registered. Nematode larvae were present in the fish guts mesentery and inside of the stomach, pyloric caeca, intestine. Also the nematodes were found in the liver, muscle and gonads. The most affected organ by nematodes was the intestine mesentery. The most predominant parasite of this study has been Anisakis sp. during spring.

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“…Este es el primer estudio de aspecto ecológico en la fauna parasitaria de H. peruanus. Finalmente, los autores incentivan a seguir aportando con estudios ecológicos de la fauna parasitaria de H. peruanus para determinar si las poblaciones de parásitos tienden a una sucesión secuencial a lo largo del tiempo o una sucesión aleatoria (38).…”

Section: Discussionunclassified

Estructura comunitaria de metazoos parásitos en la doncella Hemanthias peruanus (Serranidae) del norte de Perú

et al. 2021

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Objetivo. Evaluar la estructura comunitaria de helmintos y crustáceos parásitos en la doncella Hemanthias peruanus (Steindachner, 1875) procedente del norte de Perú. Materiales y métodos. Se adquirieron 75 especímenes (34 machos y 41 hembras) de H. peruanus procedentes del Puerto Cabo Blanco, Piura, Perú. Se registraron los datos de longitud total y el sexo de los peces. Para el análisis de la comunidad parasitaria, fueron calculados los índices ecológicos parasitológicos, índices de agregación, índices de diversidad alfa y asociación entre los parámetros biométricos de los peces y los índices parasitológicos. Resultados. El porcentaje de prevalencia total en las doncellas infectadas con al menos una especie metazoaria parásita fue del 65,33%, es decir 49 hospederos parasitados. El componente comunitario de la fauna de eumetazoos parasitaria en los peces evaluados estuvo dominada por la presencia de ectoparásitos (3 especies de monogeneos y 1 especie de isópodo) frente a la poca abundancia de especies endoparásitos (2 especies de trematodos, 1 especies céstoda y 1 especie de acantocéfalo). Probablemente la falta de asociación se deba a la influencia de otros factores bióticos o abióticos. Los parásitos más prevalentes presentaron una distribución del tipo agregada. El estimador de Chao-1 estima que la riqueza esperada fue de ocho. Los factores bióticos como la longitud y el sexo de los peces no se encontraron relacionados con los índices parasitológicos de ninguna especie parásita. Conclusiones. Registramos a H. peruanus como nuevo hospedero para para Ceratothoa gaudichaudii, Corynosoma australe, Parancylodiscoides signifer, Pronotogrammella scholzi y Scolex pleuronectis.

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Testing for deterministic succession in metazoan parasite communities of marine fish

Cited by 10 publications

References 88 publications

Assembly rules of helminth parasite communities in grey mullets: combining components of diversity

Assembly rules of helminth parasite communities in grey mullets: combining components of diversity

Parasitic load of the Pacific mackerel, Scomber japonicus (Pisces: Scombridae) from Northwestern Baja California, Mexico

Estructura comunitaria de metazoos parásitos en la doncella Hemanthias peruanus (Serranidae) del norte de Perú

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