Hysterothylacium rhamdiae sp.n., (Ascaridoidea: Anisakidae) from a Neotropical Catfish, Rhmdia sapo (Pisces: Pimelodidae)
نویسندگان
چکیده
منابع مشابه
On a new species of Hysterothylacium (Nematoda: Anisakidae) from Cauque mauleanum (Pisces: Atherinidae) by brightfield and scanning electron microscopy.
Hysterothylacium geschei n. sp. (Nematoda, Anisakidae) is described from the intestine of Cauque mauleanum (Steindachner) (Pisces: Atherinidae) from Lake Panguipulli (39 degrees-43'S; 72 degrees-13'W), Chile. Eleven (78.6%) out of 14 fish were infected, with a mean intensity (range) of 14.4 (1-55) worms. The new species can be differentiated from the two previously described species of freshwat...
متن کاملGenetic Variation of the Endangered Neotropical Catfish Steindachneridion scriptum (Siluriformes: Pimelodidae)
Steindachneridion scriptum is an important species as a resource for fisheries and aquaculture; it is currently threatened and has a reduced occurrence in South America. The damming of rivers, overfishing, and contamination of freshwater environments are the main impacts on the maintenance of this species. We accessed the genetic diversity and structure of S. scriptum using the DNA barcode and ...
متن کاملIsolation and characterization of eight microsatellite loci for the Neotropical freshwater catfish Pimelodella chagresi (Teleostei: Pimelodidae)
We report eight (CA) 10 − 35 unlinked microsatellite loci from the Neotropical freshwater catfish, Pimelodella chagresi (Siluriformes: Pimelodidae). These loci were characterized with 23 individuals collected in Panama. Number of alleles per locus varied from 7 to 23 (mean = 12.9) and observed heterozygosity ranged from 0.522 to 0.909 (mean = 0.732). These loci will be used to investigate the e...
متن کاملGenetic characterization of the Neotropical catfish Pimelodus maculatus (Pimelodidae, Siluriformes) in the Upper Uruguay River
Freshwater fish present unique challenges when one attempts to understand the factors that determine the structure of their populations. Habitat fragmentation is a leading cause of population decline that threatens ecosystems worldwide. In this study, we investigated the conservation status of genetic variability in the Neotropical catfish (Pimelodus maculatus). Specifically, we examined the st...
متن کاملThe enzymes of glycogen and trehalose catabolism from Hysterothylacium aduncum (Nematoda: Anisakidae).
The activity of alpha-amylase, glucoamylase, maltase, trehalase, glycogen phosphorylase and trehalose phosphorylase was measured in extracts from larval and adult Hysterothylacium aduncum (Rudolphi, 1802), parasitic nematode of marine fish. The content of glycogen and trehalose in the worm's body was also determined. Both the hydrolytic and phosphorolytic paths of sugar decomposition are presen...
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ژورنال
عنوان ژورنال: Memórias do Instituto Oswaldo Cruz
سال: 1995
ISSN: 0074-0276
DOI: 10.1590/s0074-02761995000300008