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Blanco Saúl - One of the best experts on this subject based on the ideXlab platform.
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Nitzschia imae sp. nov. (Bacillariophyta, Nitzschiaceae) de Islandia, con una redescripción de Hannaea arcus var. linearis
'Editorial CSIC', 2013Co-Authors: Álvarez-blanco Irene, Blanco SaúlAbstract:From field-collected samples, two Icelandic diatom species were studied under light and electron microscopy, resulting in a newly described species and an emended description with a nomenclatural status change. A discussion on the morphological features of these taxa and their taxonomic affinities with related species is presented. Nitzschia imae is described from Blue Lagoon, south-west Iceland. The main diagnostic criteria include the presence of two differences morphotypes, one with obtusely rounded apices and the other with slightly asymmetrical valve outline and broadly rounded apices. Additionally, we propose an emended description for Hannaea arcus var. linearis since there is no concordance between morphometric features in the protologue and the type illustration.A partir de muestras obtenidas en el campo, se han estudiado dos especies de diatomeas de Islandia mediante microscopía óptica y electrónica, siendo descrita una de ellas como nueva para la ciencia y realizándose una descripción enmendada y un cambio nomenclatural para la segunda. Se presenta una discusión de las características morfológicas de estos táxones y sus afinidades taxonómicas con especies similares. Nitzschia imae es descrita en la Laguna Azul, en el suroeste de Islandia. Los principales criterios de diagnóstico incluyen la presencia de dos diferentes morfotipos de la especie, uno con ápices apuntados y otro con forma valvar ligeramente asimétrica y ápices redondeados. Adicionalmente, se propone una descripción enmendada de Hannaea arcus var. linearis ya que no hay concordancia entre las características morfométricas propuestas en el protólogo y la ilustración del tipo del taxón
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Nitzschia imae sp. nov. (Bacillariophyta, Nitzschiaceae) from Iceland, with a redescription of Hannaea arcus var. linearis
Consejo Superior de Investigaciones Científicas, 2013Co-Authors: Álvarez-blanco Irene, Blanco SaúlAbstract:From field-collected samples, two Icelandic diatom species were studied under light and electron microscopy, resulting in a newly described species and an emended description with a nomenclatural status change. A discussion on the morphological features of these taxa and their taxonomic affinities with related species is presented. Nitzschia imae is described from Blue Lagoon, south-west Iceland. The main diagnostic criteria include the presence of two differences morphotypes, one with obtusely rounded apices and the other with slightly asymmetrical valve outline and broadly rounded apices. Additionally, we propose an emended description for Hannaea arcus var. linearis since there is no concordance between morphometric features in the protologue and the type illustration.A partir de muestras obtenidas en el campo, se han estudiado dos especies de diatomeas de Islandia mediante microscopía óptica y electrónica, siendo descrita una de ellas como nueva para la ciencia y realizándose una descripción enmendada y un cambio nomenclatural para la segunda. Se presenta una discusión de las características morfológicas de estos táxones y sus afinidades taxonómicas con especies similares. Nitzschia imae es descrita en la Laguna Azul, en el suroeste de Islandia. Los principales criterios de diagnóstico incluyen la presencia de dos diferentes morfotipos de la especie, uno con ápices apuntados y otro con forma valvar ligeramente asimétrica y ápices redondeados. Adicionalmente, se propone una descripción enmendada de Hannaea arcus var. linearis ya que no hay concordancia entre las características morfométricas propuestas en el protólogo y la ilustración del tipo del taxón
Álvarez-blanco Irene - One of the best experts on this subject based on the ideXlab platform.
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Nitzschia imae sp. nov. (Bacillariophyta, Nitzschiaceae) de Islandia, con una redescripción de Hannaea arcus var. linearis
'Editorial CSIC', 2013Co-Authors: Álvarez-blanco Irene, Blanco SaúlAbstract:From field-collected samples, two Icelandic diatom species were studied under light and electron microscopy, resulting in a newly described species and an emended description with a nomenclatural status change. A discussion on the morphological features of these taxa and their taxonomic affinities with related species is presented. Nitzschia imae is described from Blue Lagoon, south-west Iceland. The main diagnostic criteria include the presence of two differences morphotypes, one with obtusely rounded apices and the other with slightly asymmetrical valve outline and broadly rounded apices. Additionally, we propose an emended description for Hannaea arcus var. linearis since there is no concordance between morphometric features in the protologue and the type illustration.A partir de muestras obtenidas en el campo, se han estudiado dos especies de diatomeas de Islandia mediante microscopía óptica y electrónica, siendo descrita una de ellas como nueva para la ciencia y realizándose una descripción enmendada y un cambio nomenclatural para la segunda. Se presenta una discusión de las características morfológicas de estos táxones y sus afinidades taxonómicas con especies similares. Nitzschia imae es descrita en la Laguna Azul, en el suroeste de Islandia. Los principales criterios de diagnóstico incluyen la presencia de dos diferentes morfotipos de la especie, uno con ápices apuntados y otro con forma valvar ligeramente asimétrica y ápices redondeados. Adicionalmente, se propone una descripción enmendada de Hannaea arcus var. linearis ya que no hay concordancia entre las características morfométricas propuestas en el protólogo y la ilustración del tipo del taxón
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Nitzschia imae sp. nov. (Bacillariophyta, Nitzschiaceae) from Iceland, with a redescription of Hannaea arcus var. linearis
Consejo Superior de Investigaciones Científicas, 2013Co-Authors: Álvarez-blanco Irene, Blanco SaúlAbstract:From field-collected samples, two Icelandic diatom species were studied under light and electron microscopy, resulting in a newly described species and an emended description with a nomenclatural status change. A discussion on the morphological features of these taxa and their taxonomic affinities with related species is presented. Nitzschia imae is described from Blue Lagoon, south-west Iceland. The main diagnostic criteria include the presence of two differences morphotypes, one with obtusely rounded apices and the other with slightly asymmetrical valve outline and broadly rounded apices. Additionally, we propose an emended description for Hannaea arcus var. linearis since there is no concordance between morphometric features in the protologue and the type illustration.A partir de muestras obtenidas en el campo, se han estudiado dos especies de diatomeas de Islandia mediante microscopía óptica y electrónica, siendo descrita una de ellas como nueva para la ciencia y realizándose una descripción enmendada y un cambio nomenclatural para la segunda. Se presenta una discusión de las características morfológicas de estos táxones y sus afinidades taxonómicas con especies similares. Nitzschia imae es descrita en la Laguna Azul, en el suroeste de Islandia. Los principales criterios de diagnóstico incluyen la presencia de dos diferentes morfotipos de la especie, uno con ápices apuntados y otro con forma valvar ligeramente asimétrica y ápices redondeados. Adicionalmente, se propone una descripción enmendada de Hannaea arcus var. linearis ya que no hay concordancia entre las características morfométricas propuestas en el protólogo y la ilustración del tipo del taxón
Bronwen Presswell - One of the best experts on this subject based on the ideXlab platform.
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novel morphological and molecular data for corynosoma hannae zdzitowiecki 1984 acanthocephala polymorphidae from teleosts fish eating birds and pinnipeds from new zealand
Parasitology International, 2017Co-Authors: Jesus S Hernandezorts, Lesley R Smales, Carlos Daniel Pinachopinacho, Martin Garciavarela, Bronwen PresswellAbstract:The polymorphid acanthocephalan, Corynosoma hannae Zdzitowiecki, 1984 is characterised on the basis of newly collected material from a New Zealand sea lion, Phocarctos hookeri (Gray), and long-nosed fur seal, Arctophoca forsteri (Lesson) (definitive hosts), and from Stewart Island shags, Leucocarbo chalconotus (Gray), spotted shags, Phalacrocorax punctatus (Sparrman) and yellow-eyed penguins, Megadyptes antipodes (Hombron & Jacquinot) (non-definitive hosts) from New Zealand. Specimens are described in detail and scanning electron micrographs for C. hannae are provided. Additionally, cystacanths of C. hannae are reported and described for the first time from the body cavity and mesenteries of New Zealand brill, Colistium guntheri (Hutton) and from New Zealand sole, Peltorhamphus novaezeelandiae Gunther from Kaka Point, Otago in New Zealand. Partial sequence data for the mitochondrial cytochrome c oxidase 1 gene (cox1) for adults, immature specimens and cystacanths of C. hannae were obtained. Phylogenetic analyses of the newly-generated sequences and for available cox1 sequences of Corynosoma spp. revealed a close relationship between C. hannae and C. australe Johnston, 1937, both species infecting pinnipeds in the Southern Hemisphere. However, a morphological comparison of the species suggests that C. hannae mostly closely resembles C. evae Zdzitowiecki, 1984 and C. semerme (Forssell, 1904), the latter of which occurs in pinnipeds in the Northern Hemisphere.
Presswell Bronwen - One of the best experts on this subject based on the ideXlab platform.
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Novel morphological and molecular data for Corynosoma hannae Zdzitowiecki, 1984 (Acanthocephala: Polymorphidae) from teleosts, fish-eating birds and pinnipeds from New Zealand
'Elsevier BV', 2017Co-Authors: Hernández Orts, Jesús Servando, Smales, Lesley R., Pinacho Pinacho, Carlos D., García Varela Martín, Presswell BronwenAbstract:The polymorphid acanthocephalan, Corynosoma hannae Zdzitowiecki, 1984 is characterised on the basis of newly collected material from a New Zealand sea lion, Phocarctos hookeri (Gray), and long-nosed fur seal, Arctophoca forsteri (Lesson) (definitive hosts), and from Stewart Island shags, Leucocarbo chalconotus (Gray), spotted shags, Phalacrocorax punctatus (Sparrman) and yellow-eyed penguins, Megadyptes antipodes (Hombron & Jacquinot) (non-definitive hosts) from New Zealand. Specimens are described in detail and scanning electron micrographs for C. hannae are provided. Additionally, cystacanths of C. hannae are reported and described for the first time from the body cavity and mesenteries of New Zealand brill, Colistium guntheri (Hutton) and from New Zealand sole, Peltorhamphus novaezeelandiae Günther from Kaka Point, Otago in New Zealand. Partial sequence data for the mitochondrial cytochrome c oxidase 1 gene (cox1) for adults, immature specimens and cystacanths of C. hannae were obtained. Phylogenetic analyses of the newly-generated sequences and for available cox1 sequences of Corynosoma spp. revealed a close relationship between C. hannae and C. australe Johnston, 1937, both species infecting pinnipeds in the Southern Hemisphere. However, a morphological comparison of the species suggests that C. hannae mostly closely resembles C. evae Zdzitowiecki, 1984 and C. semerme (Forssell, 1904), the latter of which occurs in pinnipeds in the Northern Hemisphere.Fil: Hernández Orts, Jesús Servando. Universidad Nacional del Comahue. Instituto de Biología Marina y Pesquera Almirante Storni; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Smales, Lesley R.. South Australian Museum; AustraliaFil: Pinacho Pinacho, Carlos D.. Universidad Nacional Autónoma de México; MéxicoFil: García Varela, Martín. Universidad Nacional Autónoma de México; MéxicoFil: Presswell, Bronwen. University Of Otago; Canad
Jesus S Hernandezorts - One of the best experts on this subject based on the ideXlab platform.
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novel morphological and molecular data for corynosoma hannae zdzitowiecki 1984 acanthocephala polymorphidae from teleosts fish eating birds and pinnipeds from new zealand
Parasitology International, 2017Co-Authors: Jesus S Hernandezorts, Lesley R Smales, Carlos Daniel Pinachopinacho, Martin Garciavarela, Bronwen PresswellAbstract:The polymorphid acanthocephalan, Corynosoma hannae Zdzitowiecki, 1984 is characterised on the basis of newly collected material from a New Zealand sea lion, Phocarctos hookeri (Gray), and long-nosed fur seal, Arctophoca forsteri (Lesson) (definitive hosts), and from Stewart Island shags, Leucocarbo chalconotus (Gray), spotted shags, Phalacrocorax punctatus (Sparrman) and yellow-eyed penguins, Megadyptes antipodes (Hombron & Jacquinot) (non-definitive hosts) from New Zealand. Specimens are described in detail and scanning electron micrographs for C. hannae are provided. Additionally, cystacanths of C. hannae are reported and described for the first time from the body cavity and mesenteries of New Zealand brill, Colistium guntheri (Hutton) and from New Zealand sole, Peltorhamphus novaezeelandiae Gunther from Kaka Point, Otago in New Zealand. Partial sequence data for the mitochondrial cytochrome c oxidase 1 gene (cox1) for adults, immature specimens and cystacanths of C. hannae were obtained. Phylogenetic analyses of the newly-generated sequences and for available cox1 sequences of Corynosoma spp. revealed a close relationship between C. hannae and C. australe Johnston, 1937, both species infecting pinnipeds in the Southern Hemisphere. However, a morphological comparison of the species suggests that C. hannae mostly closely resembles C. evae Zdzitowiecki, 1984 and C. semerme (Forssell, 1904), the latter of which occurs in pinnipeds in the Northern Hemisphere.
