A new species of Acanthochondria (Copepoda: Chondracanthidae) parasitizing the flounder Xystreurys rasile (Pleuronectiformes: Paralichthyidae) from Argentina

Alarcos, Ana Julia; Timi, Juan T.

doi:10.14411/fp.2011.016

Cited by 4 publications

(1 citation statement)

References 7 publications

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“…Parasites have been used previously as tools for discriminating fish stocks between these two regions (Timi, 2007), as well as to trace migrations of silversides Odontesthes smitti (Lahille 1929) along Argentine coasts (Carballo et al, 2012). The parasite communities of X. rasile have been studied in coastal waters off Necochea (Szidat, 1961;Alarcos & Timi, 2012), the northern limit of El Rincón, where some systematic studies have also been carried out on parasitic copepods and cestodes (Menoret & Ivanov, 2009;Alarcos & Timi, 2011), but there is no information on parasites of this species in northern regions, apart from a recent taxonomic study on trypanorhynch cestodes in paralichthyids from Rio de Janeiro, Brazil (Gonçalves da Fonseca et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Stocks and seasonal migrations of the flounder Xystreurys rasile as indicated by its parasites

Alarcos

Timi

2013

Journal of Fish Biology

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The aims of this study were (1) to compare the structure and composition of parasite assemblages of the flounder Xystreurys rasile in two regions of the Argentine Sea in order to evaluate the hypothesis for the existence of different stocks, and (2) to test the hypothesis for X. rasile migration from the Argentine-Uruguayan Common Fishing Zone (AUCFZ) towards more southern waters during spring. Parasitological evidence shows that at least two stocks of X. rasile inhabit the coastal and shelf waters of the northern Argentine Sea, one in El Rincón and the other in the AUCFZ. These stocks should be considered as discrete entities in management plans to ensure a sustainable use of these resources. The results also confirm the existence of migratory patterns in the northern stock.

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Section: Introductionmentioning

confidence: 99%

Stocks and seasonal migrations of the flounder Xystreurys rasile as indicated by its parasites

Alarcos

Timi

2013

Journal of Fish Biology

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Parasite communities in three sympatric flounder species (Pleuronectiformes: Paralichthyidae)

Alarcos

Timi

2011

Parasitol Res

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The relative role of host phylogeny and ecology on parasite community structure is analyzed in three sympatric paralichthyids from Argentine waters: the carcinophagous Xystreurys rasile and the piscivorous Paralichthys isosceles and P. patagonicus. Their relatedness, inherited ecological and physiological traits and shared past histories should result in certain similarities in their parasite assemblages. With this as our null hypothesis, we focused on the effects of measurable traits (size, age and diet) across fish species, with departures from a general pattern being interpreted as a consequence of ecological filters preventing homogeneous infections. The percentage of individuals/species that host-specific parasites contributed to each component community, as well as their effect on similarity of assemblages within/across host species, showed that they were not important contributors to abundance, richness and similarity, being irrelevant for the repeatability within component communities and across fish species as a phylogenetically related group. To minimize the effect of variables other than diet or trophic level only trophically transmitted nonspecific parasites were included in further analyses. After controlling for fish size, the congeneric host species harboured assemblages significantly different from those found in X. rasile, but were similar to each other because of their shared high trophic levels. Assemblages of equivalent structure harboured by fish with different age-size relationships showed that these variables seem to act at dissimilar rates on different features of the parasites assemblages. Indeed, age affected mainly the parasite abundance, whereas body size influenced mostly species richness. In conclusion, similar ecological filters produce analogous infections across host species driving towards homogeneous parasite communities.

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A new species of Heterochondria (Copepoda: Chondracanthidae) parasitic on many-banded sole, Zebrias fasciatus (Pleuronectiformes: Soleidae) from Korea, with a key to the species of the genus

Moon¹,

Soh²

2013

FOLIA PARASIT

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A new species of chondracanthidae (copepoda: cyclopoida), Heterochondria orientalis sp. n., is described based on specimens of both sexes collected from the gill rakers and the inner side of the operculum of the many-banded sole, Zebrias fasciatus (Basilewsky), from the Yellow sea, Korea. the new species resembles most closely H. zebriae (Ho, Kim et Kuman, 2000), but can be distinguished from this species and other congeners by the shape of the trunk and length of the antenna, the number of teeth on the mandible and the terminal process of the maxilla, and the structure of the male antennule and maxilliped. Heterochondria orientalis is the first copepod species reported from Z. fasciatus and the first heterochondrid species reported from sole fishes in the Northwest Pacific. A key to distinguish all 10 nominal species of the genus is provided.

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A new species of Acanthochondria (Copepoda: Chondracanthidae) parasitizing the flounder Xystreurys rasile (Pleuronectiformes: Paralichthyidae) from Argentina

Cited by 4 publications

References 7 publications

Stocks and seasonal migrations of the flounder Xystreurys rasile as indicated by its parasites

Stocks and seasonal migrations of the flounder Xystreurys rasile as indicated by its parasites

Parasite communities in three sympatric flounder species (Pleuronectiformes: Paralichthyidae)

A new species of Heterochondria (Copepoda: Chondracanthidae) parasitic on many-banded sole, Zebrias fasciatus (Pleuronectiformes: Soleidae) from Korea, with a key to the species of the genus

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