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A new classification of the Cestode order Proteocephalidea Mola
Rego, Amilcar Arandas;
Revista Brasileira de Zoologia , 1995, DOI: 10.1590/S0101-81751995000400009
Abstract: the morphology, ontogeny, life-cycles and distribution of species of the order proteocephalidea (cestoda), is discussed. a brief historic of the classifications is presented. the actual scheme of taxonomy of woodland (1924-1935) is criticicized and a new classification for the group is proposed. the phylogenetic uniformity of proteocephalideans is reestablished with this classification. the genera of monticelliidae (sensu woodland) are transferred to the subfamilies proteocephalinae and corallobothriinae. only one family is accepted in the proteocephalidea. proteocephalidae la rue. 1911: with five subfamilies: proteocephalinae. corallobothriinae. sandonelliinae. gangesiinae and acanthotaeniinae.
Two new species of Nomimoscolex (Cestoda: Proteocephalidea, Monticelliidae) from Gymnotus carapo (Pisces: Gymnotiformes) in Argentina
Pertierra, Alicia A Gil de;
Memórias do Instituto Oswaldo Cruz , 2003, DOI: 10.1590/S0074-02762003000300009
Abstract: nomimoscolex guillermoi n. sp. and n. dechambrieri n. sp. are described from the gymnotiform fish gymnotus carapo from argentina. the new species are placed into nomimoscolex based on the cortical position of the vitelline follicles, and medullary position of the testes, ovary, and uterus. both species were compared to the 13 species considered valid in the genus. the combination of features distinguishing n. guillermoi from n. dechambrieri is (1) the position of the vagina to cirrus pouch (anterior or posterior vs always anterior respectively), (2) the total number of testes (41-85 vs 108-130 respectively), (3) the distribution of the vitelline follicles (arranged in dorso-lateral and ventro-lateral bands vs lateral bands respectively), (4) the length of the uteroduct (ending 58% vs 35% from posterior margin of mature proglottis respectively), and (5) the presence of gland cells in the scolex (unicellular glands in the apical region and the external margin of suckers vs the presence of unicellular glands in the apex and other grouped in a cluster medially to the suckers respectively).
Two new species of Nomimoscolex (Cestoda: Proteocephalidea, Monticelliidae) from Gymnotus carapo (Pisces: Gymnotiformes) in Argentina  [cached]
Pertierra Alicia A Gil de
Memórias do Instituto Oswaldo Cruz , 2003,
Abstract: Nomimoscolex guillermoi n. sp. and N. dechambrieri n. sp. are described from the gymnotiform fish Gymnotus carapo from Argentina. The new species are placed into Nomimoscolex based on the cortical position of the vitelline follicles, and medullary position of the testes, ovary, and uterus. Both species were compared to the 13 species considered valid in the genus. The combination of features distinguishing N. guillermoi from N. dechambrieri is (1) the position of the vagina to cirrus pouch (anterior or posterior vs always anterior respectively), (2) the total number of testes (41-85 vs 108-130 respectively), (3) the distribution of the vitelline follicles (arranged in dorso-lateral and ventro-lateral bands vs lateral bands respectively), (4) the length of the uteroduct (ending 58% vs 35% from posterior margin of mature proglottis respectively), and (5) the presence of gland cells in the scolex (unicellular glands in the apical region and the external margin of suckers vs the presence of unicellular glands in the apex and other grouped in a cluster medially to the suckers respectively).
Redescription of Travassiella avitellina Rego & Pavanelli, 1987 (Proteocephalidea: Monticelliidae, Zygobothriinae), a parasite of Paulicea luetkeni (Siluriformes) from South America
Chambrier, Alain de;Gil de Pertierra, Alicia Alida;
Memórias do Instituto Oswaldo Cruz , 2002, DOI: 10.1590/S0074-02762002000500013
Abstract: the genus travassiella rego & pavanelli, 1987 comprises only one species, t. avitellina rego & pavanelli, 1987; characterized by these authors on the basis of absence of vitelline follicles. in this study, the presence of cortical vitelline follicles in this species is confirmed after de chambrier and vaucher (1999); the redescription was performed for the first time based on type and new material collected from argentina, brazil and paraguay. travassiella is confirmed as a valid genus, and compared to other genera of the subfamily zygobothriinae. t. avitellina is characterized by: (1) the presence of gland cells posteromedially to suckers; (2) the particular distribution of vitelline follicles, forming lateral arches; (3) uterine primordium cortical, growing into medulla and forming a sac-like uterus; (4) eggs, irregularly oval, outer envelop with excrescences and two digitate lappets in one of the poles.
Redescription of Travassiella avitellina Rego & Pavanelli, 1987 (Proteocephalidea: Monticelliidae, Zygobothriinae), a parasite of Paulicea luetkeni (Siluriformes) from South America  [cached]
Chambrier Alain de,Gil de Pertierra Alicia Alida
Memórias do Instituto Oswaldo Cruz , 2002,
Abstract: The genus Travassiella Rego & Pavanelli, 1987 comprises only one species, T. avitellina Rego & Pavanelli, 1987; characterized by these authors on the basis of absence of vitelline follicles. In this study, the presence of cortical vitelline follicles in this species is confirmed after de Chambrier and Vaucher (1999); the redescription was performed for the first time based on type and new material collected from Argentina, Brazil and Paraguay. Travassiella is confirmed as a valid genus, and compared to other genera of the subfamily Zygobothriinae. T. avitellina is characterized by: (1) the presence of gland cells posteromedially to suckers; (2) the particular distribution of vitelline follicles, forming lateral arches; (3) uterine primordium cortical, growing into medulla and forming a sac-like uterus; (4) eggs, irregularly oval, outer envelop with excrescences and two digitate lappets in one of the poles.
Alimentary handling in the larviculture of mandi-pintado (“Pimelodus britskii”) Manejo alimentar na larvicultura do mandi-pintado ("Pimelodus britskii")  [cached]
Odair Diemer,Dacley Hertes Neu,César Sary,Aldi Feiden
Revista Brasileira de Saúde e Produ??o Animal , 2010,
Abstract: This study aimed to evaluate the growth rate and survival of mandi-pintado (Pimelodus britskii) larvae submitted to different feeding management. The experiment was conducted in a completely randomized design with four treatments and five replicates in a tank with 30 liters of water, each containing 30 larvae (0.032 ± 0.0048g and 8.22 ± 0.40mm). The treatments consisted of larvae fed with artemia; diet; artemia + diet; and artemia for two weeks + diet. Fish fed with artemia + diet showed greater weight and length, when compared to other feeding managements. The fish fed only with diet showed the worst performance. For the mandi-pintado larval rearing, the use of artemia combined with diet provides the best results for survival and growth. O presente trabalho foi conduzido com o objetivo de avaliar a taxa de crescimento e sobrevivência de larvas de mandi-pintado (Pimelodus britskii) submetidas a diferentes manejos alimentares. O experimento foi realizado em um delineamento inteiramente casualizado com quatro tratamentos e cinco repeti es, em aquários com 30 litros de água, cada um com 30 larvas (0,032 ± 0,0048g e 8,22 ± 0,40mm). Os tratamentos consistiram em larvas alimentadas com artemia; ra o; artemia + ra o e artemia por duas semanas + ra o. Os peixes alimentados com artemia + ra o apresentaram maior peso e comprimento final, quando comparados aos demais manejos alimentares. Os peixes alimentados apenas por ra o apresentaram o pior desempenho. Para a larvicultura do mandi-pintado, a utiliza o de artemia combinada com ra o proporciona os melhores resultados de sobrevivência e crescimento.
Revision of Gangesia (Cestoda: Proteocephalidea) in the Indomalayan Region: Morphology, Molecules and Surface Ultrastructure  [PDF]
Anirban Ash, Tomá? Scholz, Alain de Chambrier, Jan Brabec, Mikulá? Oros, Pradip Kumar Kar, Shivaji Prabhakar Chavan, Jean Mariaux
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0046421
Abstract: Tapeworms of Gangesia Woodland, 1924 (Cestoda: Proteocephalidea) parasitic in freshwater fishes in the Indomalayan Region were critically reviewed. Evaluation of type specimens and newly collected materials from Bangladesh, Cambodia and India, as well as critical examination of extensive literature have shown that only the following four species, instead of 48 nominal species of Gangesia and Silurotaenia Nybelin, 1942 reported from this region (36 new synonymies proposed), are valid: Gangesia bengalensis (Southwell, 1913), type-species of the genus and most common parasite of Wallago attu (Siluridae), G. macrones Woodland, 1924 typical of Sperata seenghala (Bagridae), both species characterized by the possession of two circles of hooks on the rostellum-like organ and several rows of hooklets on the anterior margins of suckers; G. agraensis Verma, 1928 from W. attu (typical host), which has the scolex with only one circle of hooks and 1–3 incomplete rows of tiny hooklets on the suckers; and G. vachai (Gupta and Parmar, 1988) n. comb. from several catfishes, which possesses 4–6 circles of hooks and 5–11 rows of hooklets on the anterior half of suckers. Scolex morphology, including surface ultrastructure (microtriches), of all but one species (G. vachai) is described for the first time using scanning electron microscopy. A phylogenetic analysis based on the partial sequences encoding the large nuclear ribosomal subunit RNA gene has shown that three Indomalayan species, namely G. bengalensis, G. macrones and G. vachai, form a monophyletic group within Gangesia, whereas G. agraensis tends to form a clade with the Palaearctic species of the genus. A table with differential characters of all species from the Indomalayan Region is also provided together with a key to identification of genera of the subfamily Gangesiinae. The present study demonstrates that species of Silurotaenia do not occur in the Indomalayan region.
Varia??o estacional da composi??o centesimal do peixe de água doce, Pimelodus darias Bloch (Mandi)
Andrade, Marília Oetterer De;Lima, Urgel de Almeida;
Anais da Escola Superior de Agricultura Luiz de Queiroz , 1975, DOI: 10.1590/S0071-12761975000100050
Abstract: this work was carried out on "mandi" (pimelodus darias bloch) a specie of catfish from piracicaba river in s?o paulo state, brazil, with the purpose of knowing the influence of the fishing season on moisture, protein, lipids and ash contents of fish flesh, to select the best time to make preserves. the edible part of "mandi" was analysed monthly during a year and showed the following data: moisture 65.15 g/100 g, protein 17.92 g/100 g, lipids 15.51 g/100 g and ash 1.34 g/100 g. the lipids data permitted to classify "mandi" as a fatty fish and june and july were the elected months to pick out fishes for processing.
Redescription of Nomimoscolex piraeeba Woodland, 1934 (Cestoda, Proteocephalidea), from the Amazon catfishes, Brachyplatystoma spp. with proposal of synonyms and invalidation of Endorchiinae and Endorchis
Rego, A. Arandas;
Memórias do Instituto Oswaldo Cruz , 1991, DOI: 10.1590/S0074-02761991000200013
Abstract: the proteocephalid species nomimoscolex piraeeba woodland, 1934, n. dorad (woodland, 1935) and endorchis piraeeba woodland, 1934, from brachyplatystoma spp., south american silurid fishes, are critically revised. it is concluded that they concern to one species, n. piraeeba. the endorchiinae, a subfamily of monticelliidae, and genus endorchis are invalidated herein. the valid species of endorchiinae, belonging to genus muzophorus, m. admonticellia woodland, 1934, m. pirarara woodland, 1934 and m. woodlandi rego, 1984, are transferred provisionally to zygobothriinae.
Reproductive activity and recruitment of the yellow-mandi Pimelodus maculatus (Teleostei: Pimelodidae) in the Igarapava Reservoir, Grande River, Southeast Brazil
Maia, Bruno Pereira;Ribeiro, Sandra Maria Franco;Bizzotto, Paula Maciel;Vono, Volney;Godinho, Hugo Pereira;
Neotropical Ichthyology , 2007, DOI: 10.1590/S1679-62252007000200008
Abstract: the catfish yellow-mandi, pimelodus maculatus, is a valuable sporting and commercial fish of inland waters of southeast brazil including igarapava reservoir. it is a short-distance migrant that needs shorter stretches of free-flowing river to spawn compared to other neotropical migrants. igarapava reservoir is one the 13 hydroelectric reservoirs, arranged in a cascade fashion, impounding the 1,300 km-long grande river, se brazil. in this paper, we examined reproductive features and recruitment of the yellow-mandi in igarapava reservoir. we also evaluated the role of the igarapava fish ladder (ifl) built around igarapava dam on the sustainability of its fisheries. female adult yellow-mandis that were gill netted (nets of 8-20 cm stretch-mesh) during the reproductive season of 2002/2003, showed adequate ovarian development, indicated by the gonadosomatic index (12.9 ± 2.1, at mature stage) and absolute fecundity (413,794 ± 206,259; range = 125,601-742,026), which were higher than those found in the literature. postovulatory follicles present in ovarian tissue of 32% of the females examined showed that they possibly could have spawned in the reservoir area. gill nets of 3-5 cm stretch-mesh aimed at capturing juvenile yellow-mandi were unproductive. these results indicated that igarapava reservoir and its reduced catchment area did not provide adequate conditions for recruitment of the yellow-mandi. this fish, the most abundant in the ifl, and those reaching the reservoir tended to remain there since no upstream passage mechanism is present. thus, the ifl apparently was responsible for maintaining the igarapava reservoir stock of yellow-mandi.
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