| potential interactions between the intestinal helminths of the cichlid fish cichlasoma synspilum from southeastern mexico. | this study presents and analyzes positional data on 18 helminth species forming the intestinal infracommunities of 59 cichlasoma synspilum from southeastern mexico. interspecific interactions were found between 4 pairs of host specialists: crassicutis cichlasomae (digenea) with neoechinorhynchus golvani (acanthocephala), spirocamallanus rebecae (nematoda) with n. golvani, and raillietnema kritscheri (nematoda) with n. golvani. the interactions were expressed as negative correlations, positional ... | 2000 | 10958441 |
| molecular identification and first description of the male of neoechinorhynchus schmidti (acanthocephala: neoechinorhynchidae), a parasite of trachemys scripta (testudines) in méxico. | the morphology of the males of neoechinorhynchus schmidti (acanthocephala: neoechinorhynchidae) is unknown, because this species was described based exclusively on females. however, recently we collected 2 common slider turtles trachemys scripta in centla swamps, tabasco, mexico, parasitized by 27 specimens of an acanthocephalan whose females were morphologically identical to n. schmidti. the domains d2 and d3 of the large subunit of the nuclear ribosomal rna (lsu) of 3 males and 2 females of th ... | 2011 | 21840414 |
| redescription of neoechinorhynchus (neoechinorhynchus) golvani salgado-maldonado, 1978 (acanthocephala: neoechinorhynchidae) and description of a new species from freshwater cichlids (teleostei: cichlidae) in mexico. | a redescription of neoechinorhynchus (neoechinorhynchus) golvani salgado-maldonado (an inst biol univ nal autón méx, ser zool 49:35-47, 1978) is presented, based on adult specimens collected from the type host paraneetroplus fenestratus from the type location, the lago de catemaco lake, veracruz state, mexico, and its presence is recorded in other cichlids. detailed studies of n. (n.) golvani using light microscopy revealed some taxonomically important, previously unreported features, such as th ... | 2013 | 23532542 |
| detecting a complex of cryptic species within neoechinorhynchus golvani (acanthocephala: neoechinorhynchidae) inferred from itss and lsu rdna gene sequences. | neoechinorhynchus golvani is an intestinal parasite of freshwater and brackish water fishes distributed in mexico. the genetic variability of 40 samples representing 12 populations from north, south, and central mexico, and 1 from costa rica, was estimated by sequencing 2 nuclear genes (its1, 5.8s, its2, and lsu rdna, including the domain d2 + d3). the length of both genes ranged from 700 to 779 base pairs (bp) and from 813 to 821 bp, for itss and lsu, respectively. the genetic divergence among ... | 2009 | 19438288 |
| seasonal patterns in metazoan parasite community of the "fat sleeper" dormitator latifrons (pisces: eleotridae) from tres palos lagoon, guerrero, mexico. | dormitator is among the most important fish genera in the mexican pacific coastal lagoon systems. in tres palos lagoon, the fat sleeper dormitator latifrons is one of the most significant species based on catch volume, although it is only consumed locally. very little information exists on this species' parasitofauna. composition and temporal variation in the metazoan parasite community structure of dormitator latifrons from tres palos lagoon (99 degrees 47' w, 16 degrees 48' n), guerrero, mexic ... | 2008 | 19419054 |
| temporal variation in the helminth parasite communities of the pacific fat sleeper, dormitator latifrons, from tres palos lagoon, guerrero, mexico. | temporal variation in the helminth parasite communities of the pacific fat sleeper, dormitator latifrons, from tres palos lagoon, guerrero, mexico, was studied at the component community and infracommunity levels. in total, 185 host specimens were collected between april 2000 and march 2001. eight parasite species were identified: clinostomum complanatum, echinochasmus leopoldinae, ascocotyle (phagicola) longa, pseudoacanthostomum panamense, saccocoelioides sp., parvitaenia cochlearii, neoechino ... | 2008 | 18564733 |
| a checklist of metazoan parasites of fish from tres palos lagoon, guerrero, mexico. | an extensive survey of helminth parasites in fish species from tres palos lagoon, in guerrero, mexico, resulted in identification of 39 metazoan parasite species (37 helminth and 2 crustaceans) in 13 fish species (n = 1,498). specimen collection in this coastal lagoon was done between april 2000 and november 2003. digenean species (18, 8 adult and 10 metacercariae) dominated the parasite fauna. the most widespread species of parasite were: contracaecum sp. (nematoda), pseudoacanthostomum panamen ... | 2007 | 17846791 |
| [helminths from the fish dormitator maculatus (osteichthyes: eleotridae) from alvarado, veracruz, mexico]. | dormirator maculatus (n=184) was collected in the alvarado lagoon, mexico during a year period (oct. 1993-1994). in the helminthologic review, the presence of clinostomum complanatum (82.3%), neoechinorhynchus golvani (76.1%), spiroxys sp. (21.3 %), and camallanus sp. (6.2%) was registered. reduction of the hematocrit caused by such infection is significant (t, a= 0.05). | 2004 | 17354390 |