Helminth parasites of the pupfish Cyprinodon meeki (Pisces: Cyprinodontiformes), an endemic freshwater fish from North-Central Mexico

Martínez-Aquino, Andrés; Aguilar-Aguilar, Rogelio

doi:10.2478/s11687-008-0008-1

Cited by 16 publications

(4 citation statements)

References 16 publications

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“…The infracommunities studied herein were generally species-poor (on average, only 1-2 species of helminth per fish) and were dominated by the monogenean Urocleidoides vaginoclaustrum. This is consistent with infracommunities reported for other freshwater fishes in México (Martínez-Aquino et al, 2004Martínez-Aquino and Aguilar-Aguilar, 2008). Kennedy (1989) suggested that infracommunities with low rates of colonization, low numbers of species and of individuals, and with low or no presence of interspecific interactions is a general pattern in freshwater fishes.…”

Section: Discussionsupporting

confidence: 89%

Helminth communities of Xiphophorus malinche (Pisces: Poeciliidae), endemic freshwater fish from the Pánuco River, Hidalgo, Mexico

Bautista-Hernández¹,

Violante‐González²,

Monks³

et al. 2014

Revista Mexicana de Biodiversidad

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A total of 141 highland swordtails, Xiphophorus malinche, were collected from 2 localities in the Pánuco river drainage (Chicayotla and Malila) from Hidalgo, México. The parasite community structure of the 2 localities was examined and compared. Five taxa of helminths were recovered: 2 digeneans, adults of Paracreptotrema sp. and metacercariae of Uvulifer sp.; an adult monogenean, Urocleidoides vaginoclastrum; an adult cestode, Bothriocephalus acheilognathi, and an adult nematode, Rhabdochona xiphophori. Among them, Ur. vaginoclastrum was the most frequent and abundant species. The remaining species were rare and found at low mean abundance. Only 2 species of helminth were found at both localities. The observed species richness, individual abundance, and diversity were low at component community and infracommunity levels. Abundance of helminths and fish standard length were correlated. Uvulifer sp. was more abundant in small fish, but Ur. vaginoclastrum showed the opposite pattern, high abundance in larger fish. Differences observed in this study can be attributed to abiotic and biotic environmental factors resulting from the geographic separation of these localities during to the orogeny of the Sierra Madre Oriental that restricted fish to isolated headwaters.

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Section: Discussionsupporting

confidence: 89%

Helminth communities of Xiphophorus malinche (Pisces: Poeciliidae), endemic freshwater fish from the Pánuco River, Hidalgo, Mexico

Bautista-Hernández¹,

Violante‐González²,

Monks³

et al. 2014

Revista Mexicana de Biodiversidad

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“…Parasite communities of both species of cyprinids are depauperate and are dominated by one helminth species; this, and the fact that a low species richness values at both, the component community and infracommunity levels, were detected, is consistent with the parasite community structure in a diverse array of freshwater fishes inhabiting in epicontinental waters in central and northern Mexico, corresponding with the Nearctic region (Peresbarbosa- Rojas et al, 1994;Espinosa-Huerta et al, 1996;Rojas et al, 1997; Pérez-Ponce de León et al, 2000;Martínez-Aquino et al, 2004, 2007Martínez-Aquino & Aguilar-Aguilar, 2008;Romero-Tejeda et al, 2008). Helminth parasite communities in the 2 cyprinids we studied herein also show a numerical dominance by a single or a few helminth species.…”

Section: Helminth Communitiessupporting

confidence: 63%

Helminth fauna of two cyprinid fish (Campostoma ornatum and Codoma ornata) from the upper Piaxtla River, Northwestern Mexico

et al. 2010

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SummaryThe helminth parasite fauna of 2 species of freshwater fishes from the upper Piaxtla River in northwestern Mexico was studied. A total of 41 cyprinids, corresponding to 20 Campostoma ornatum and 21 Codoma ornata were analyzed. Six species of platyhelminths were recorded, including 2 species of monogeneans (Gyrodactylus sp. and Dactylogyrus sp.), 3 species of digeneans (Posthodiplostomum minimum, Clinostomum complanatum, and Margotrema sp.), and 1 species of tapeworm (Bothriocephalus acheilognathi). Helminth parasite infracommunities were depauperate, showed low richness and diversity values, and were dominated by 1 or 2 helminth species. This pattern is consistent with that observed for the helminth parasite communities in other freshwater fishes in central and northern Mexico.

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“…Nearly all Cyprinodon have a diet composed mainly of algae and detritus. We verified this with an exhaustive literature search of all studies with dietary data or observations of Cyprinodon (e.g., Cox 1972; Davis 1981; Naiman 1975; Naiman 1979; Minckley and Minckley 1986; Martinez‐Aquino and Aguilar‐Aguilar 2008; Stoike and Pister 2010; Carson 2009) as well as information from FishTraits (Frimpong and Angermeier 2009; Miller et al 2005).…”

Section: Methodsmentioning

confidence: 94%

Trophic Novelty Is Linked to Exceptional Rates of Morphological Diversification in Two Adaptive Radiations of Cyprinodon Pupfish

2011

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Adaptive radiations are known for rapid morphological and species diversification in response to ecological opportunity, but it remains unclear if distinct mechanisms drive this pattern. Here, we show that rapid rates of morphological diversification are linked to the evolution of novel ecological niches in two independent Cyprinodon radiations nested within a wide-ranging group repeatedly isolated in extreme environments. We constructed a molecular phylogeny for the Cyprinodontidae, measured 16 functional traits across this group, and compared the likelihoods of single or multiple rates of morphological diversification. We found that rates of morphological diversification within two sympatric Cyprinodon clades containing unique trophic specialists are not part of an adaptive continuum with other clades, but are instead extreme outliers with rates up to 131 times faster than other Cyprinodontidae. High rates were not explained by clade age, but were instead linked to unique trophic niches within Cyprinodon, including scale-eating, zooplanktivory, and piscivory. Furthermore, although both radiations occur in similar environments and have similar sister species, they each evolved unique trophic specialists and high rates of morphological diversification in different sets of traits. We propose that the invasion of novel ecological niches may be a key mechanism driving many classic examples of adaptive radiation.

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Helminth parasites of the pupfish Cyprinodon meeki (Pisces: Cyprinodontiformes), an endemic freshwater fish from North-Central Mexico

Cited by 16 publications

References 16 publications

Helminth communities of Xiphophorus malinche (Pisces: Poeciliidae), endemic freshwater fish from the Pánuco River, Hidalgo, Mexico

Helminth communities of Xiphophorus malinche (Pisces: Poeciliidae), endemic freshwater fish from the Pánuco River, Hidalgo, Mexico

Helminth fauna of two cyprinid fish (Campostoma ornatum and Codoma ornata) from the upper Piaxtla River, Northwestern Mexico

Trophic Novelty Is Linked to Exceptional Rates of Morphological Diversification in Two Adaptive Radiations of Cyprinodon Pupfish

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