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Leonel Serrano Gordo - One of the best experts on this subject based on the ideXlab platform.
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the use of parasites as biological tags for stock identification of blue jack mackerel trachurus picturatus in the north eastern atlantic
Fisheries Research, 2017Co-Authors: Joana Vasconcelos, Margarida Hermida, Aurélia Saraiva, Jose A Gonzalez, Leonel Serrano GordoAbstract:The use of parasites as biological tags for discriminating stocks of blue jack mackerel, Trachurus picturatus (Osteichthyes, Carangidae), in the northeast Atlantic Ocean is assessed herein. In this study the following parasites have been selected as possible biological tags: Anisakis spp. (Nematoda: Anisakidae), Rhadinorhynchus sp. (Acanthocephala: Rhadinorhynchidae), Nybelinia sp. (Cestoda: Tentaculariidae) and Bolbosoma sp. (Acanthocephala: Polymorphidae). Anisakis spp. was the most prevalent parasite taxon found in all localities, attaining higher values in fish from Peniche, mainland Portugal. The occurrence of Rhadinorhynchus sp. in fish from all studied areas was rare (prevalence <10%) but significantly different between localities, with higher values in both archipelagos. Nybelinia sp. specimens were only detected in fish from Madeira and cystacanths of the genus Bolbosoma were never detected. The distinctive pattern of infection of these parasite species points to the existence of three stocks of blue jack mackerel in the northeast Atlantic: one in Portuguese mainland waters, one in Madeira archipelago and another in the Canary archipelago. These results support the management strategy which treats the three populations studied as separate stocks.
Sáez Sylvia - One of the best experts on this subject based on the ideXlab platform.
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Taxonomic status of Doydixodon laevifrons (Tschudi, 1846) (Osteichthyes: Kyphosidae)
Facultad de Ciencias Biológicas Universidad Nacional Mayor de San Marcos, 2013Co-Authors: Pequeño Germán, Sáez SylviaAbstract:Doydixodon laevifrons es un pez comúnmente conocido como baúnco, y en los últimos tiempos también ha sido citado como Girella laevifrons en recientes publicaciones sin explicaciones que avalen tal cambio genérico. El objetivo del presente trabajo es revisar las características morfológicas diagnósticas de los géneros Doydixodon Valenciennes, 1846 y Girella Gray, 1835, y su presencia o ausencia en ejemplares de Doydixodon laevifrons procedentes de Chile central. Concluimos que Doydixodon laevifrons es un sinónimo menor (=junior) de Girella laevifrons y se distribuye por la franja litoral, desde la costa sur de Perú, hasta aproximadamente El Tabo (33º27’S, 71º41’W) en Chile. Es la especie de distribución más austral en su género. Se sugiere revisar la taxonomía del género Girella Gray, 1835, en el Pacífico sur oriental.Doydixodon laevifrons is commonly known as baúnco, but in latest papers it has also been cited as Girella laevifrons without any explanation for this change generic. The purpose of this paper is to review the morphological features of diagnostic for the genera Doydixodon Valenciennes, 1846 and Girella Gray, 1835, and their presence or absence in specimens of Doydixodon laevifrons from central Chile. We conclude that Doydixodon laevifrons is synonymous minor (=junior) of Girella laevifrons and it is distributed by the littoral, from the south coast of Peru, until approximately El Tabo (33°27’S, 71°41’W) in Chile. Thus, is the species with southernmost distribution in the genus. A taxonomic revision of the genus Girella Gray, 1835 in the southeastern Pacific, is suggested
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El estatus taxonómico de Doydixodon laevifrons (Tschudi, 1846) (Osteichthyes: Kyphosidae)
Universidad Nacional Mayor de San Marcos: Instituto de Ciencias Biológicas "Antonio Raimondi", 2008Co-Authors: Pequeño Germán, Sáez SylviaAbstract:Doydixodon laevifrons is commonly known as baúnco, but in latest papers it has also been cited as Girella laevifrons without any explanation for this change generic. The purpose of this paper is to review the morphological features of diagnostic for the genera Doydixodon Valenciennes, 1846 and Girella Gray, 1835, and their presence or absence in specimens of Doydixodon laevifrons from central Chile. We conclude that Doydixodon laevifrons is synonymous minor (=junior) of Girella laevifrons and it is distributed by the littoral, from the south coast of Peru, until approximately El Tabo (33°27'S, 71°41'W) in Chile. Thus, is the species with southernmost distribution in the genus. A taxonomic revision of the genus Girella Gray, 1835 in the southeastern Pacific, is suggested.Doydixodon laevifrons es un pez comúnmente conocido como baúnco, y en los últimos tiempos también ha sido citado como Girella laevifrons en recientes publicaciones sin explicaciones que avalen tal cambio genérico. El objetivo del presente trabajo es revisar las características morfológicas diagnósticas de los géneros Doydixodon Valenciennes, 1846 y Girella Gray, 1835, y su presencia o ausencia en ejemplares de Doydixodon laevifrons procedentes de Chile central. Concluimos que Doydixodon laevifrons es un sinónimo menor (=junior) de Girella laevifrons y se distribuye por la franja litoral, desde la costa sur de Perú, hasta aproximadamente El Tabo (33º27'S, 71º41'W) en Chile. Es la especie de distribución más austral en su género. Se sugiere revisar la taxonomía del género Girella Gray, 1835, en el Pacífico sur oriental
Joana Vasconcelos - One of the best experts on this subject based on the ideXlab platform.
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the use of parasites as biological tags for stock identification of blue jack mackerel trachurus picturatus in the north eastern atlantic
Fisheries Research, 2017Co-Authors: Joana Vasconcelos, Margarida Hermida, Aurélia Saraiva, Jose A Gonzalez, Leonel Serrano GordoAbstract:The use of parasites as biological tags for discriminating stocks of blue jack mackerel, Trachurus picturatus (Osteichthyes, Carangidae), in the northeast Atlantic Ocean is assessed herein. In this study the following parasites have been selected as possible biological tags: Anisakis spp. (Nematoda: Anisakidae), Rhadinorhynchus sp. (Acanthocephala: Rhadinorhynchidae), Nybelinia sp. (Cestoda: Tentaculariidae) and Bolbosoma sp. (Acanthocephala: Polymorphidae). Anisakis spp. was the most prevalent parasite taxon found in all localities, attaining higher values in fish from Peniche, mainland Portugal. The occurrence of Rhadinorhynchus sp. in fish from all studied areas was rare (prevalence <10%) but significantly different between localities, with higher values in both archipelagos. Nybelinia sp. specimens were only detected in fish from Madeira and cystacanths of the genus Bolbosoma were never detected. The distinctive pattern of infection of these parasite species points to the existence of three stocks of blue jack mackerel in the northeast Atlantic: one in Portuguese mainland waters, one in Madeira archipelago and another in the Canary archipelago. These results support the management strategy which treats the three populations studied as separate stocks.
Marlene Tiduko Ueta - One of the best experts on this subject based on the ideXlab platform.
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ORIGINAL ARTICLE / ARTÍCULO ORIGINAL
2015Co-Authors: Peces Comerciales, Thales Kodi Namba, Rubens Riscala Madi, Ciudad De Iguape, Sao Paulo, Marlene Tiduko UetaAbstract:The world distribution of oriental culture and the common use of fish which is not cooked manifested problems related to parasites. There is a great incidence of Ascocotyle sp. parasites in mullet fishes, which are part of human culinary spread all over world. The aim of the present study is to estimate the presence of trematode Heterophyidae metacercariae among mullet fishes commercialized at Iguape city Sao Paulo, Brazil. Ascocotyle sp. metacercarie (Digenea: Heterophyidae) were observed and analyzed in viscera and muscles of 60 mullets Mugil liza and 60 mullets Mugil curema (Osteichthyes: Mugilidae) purchased in the fish market of the Iguape city. The extraction of metacercariae of Ascocotyle sp. from viscera and muscles was performed by homogenization in homemade processor. All mullets samples were infected. M. liza and M. curema marketed in city constitute in a potential risk to the population, because of high prevalence of infection (100%) and large numbers of metacercarie in their tissues (up to 939 to M. liza and 92 to M. curema)
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ASCOCOTYLE SP. METACERCARIAE (DIGENEA: HETEROPHYIDAE) IN TISSUES OF MULLETS MUGIL LIZA AND MUGIL CUREMA (Osteichthyes: MUGILIDAE) COLLECTED IN THE FISH TRADE OF THE IGUAPE CITY, SAO PAULO, BRAZIL METACERCARIA DE ASCOCOTYLE SP. (DIGENEA: HETEROPHYIDAE
2012Co-Authors: Thales Kodi Namba, Rubens Riscala Madi, Marlene Tiduko UetaAbstract:The world distribution of oriental culture and the common use of fish which is not cooked manifested problems related to parasites. There is a great incidence of Ascocotyle sp. parasites in mullet fishes, which are part of human culinary spread all over world. The aim of the present study is to estimate the presence of trematode Heterophyidae metacercariae among mullet fishes commercialized at Iguape city Sao Paulo, Brazil. Ascocotyle sp. metacercarie (Digenea: Heterophyidae) were observed and analyzed in viscera and muscles of 60 mullets Mugil liza and 60 mullets Mugil curema (Osteichthyes: Mugilidae) purchased in the fish market of the Iguape city. The extraction of metacercariae of Ascocotyle sp. from viscera and muscles was performed by homogenization in homemade processor. All mullets samples were infected. M. liza and M. curema marketed in city constitute in a potential risk to the population, because of high prevalence of infection (100%) and large numbers of metacercarie in their tissues (up to 939 to M. liza and 92 to M. curema).
Pequeño Germán - One of the best experts on this subject based on the ideXlab platform.
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Taxonomic status of Doydixodon laevifrons (Tschudi, 1846) (Osteichthyes: Kyphosidae)
Facultad de Ciencias Biológicas Universidad Nacional Mayor de San Marcos, 2013Co-Authors: Pequeño Germán, Sáez SylviaAbstract:Doydixodon laevifrons es un pez comúnmente conocido como baúnco, y en los últimos tiempos también ha sido citado como Girella laevifrons en recientes publicaciones sin explicaciones que avalen tal cambio genérico. El objetivo del presente trabajo es revisar las características morfológicas diagnósticas de los géneros Doydixodon Valenciennes, 1846 y Girella Gray, 1835, y su presencia o ausencia en ejemplares de Doydixodon laevifrons procedentes de Chile central. Concluimos que Doydixodon laevifrons es un sinónimo menor (=junior) de Girella laevifrons y se distribuye por la franja litoral, desde la costa sur de Perú, hasta aproximadamente El Tabo (33º27’S, 71º41’W) en Chile. Es la especie de distribución más austral en su género. Se sugiere revisar la taxonomía del género Girella Gray, 1835, en el Pacífico sur oriental.Doydixodon laevifrons is commonly known as baúnco, but in latest papers it has also been cited as Girella laevifrons without any explanation for this change generic. The purpose of this paper is to review the morphological features of diagnostic for the genera Doydixodon Valenciennes, 1846 and Girella Gray, 1835, and their presence or absence in specimens of Doydixodon laevifrons from central Chile. We conclude that Doydixodon laevifrons is synonymous minor (=junior) of Girella laevifrons and it is distributed by the littoral, from the south coast of Peru, until approximately El Tabo (33°27’S, 71°41’W) in Chile. Thus, is the species with southernmost distribution in the genus. A taxonomic revision of the genus Girella Gray, 1835 in the southeastern Pacific, is suggested
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El estatus taxonómico de Doydixodon laevifrons (Tschudi, 1846) (Osteichthyes: Kyphosidae)
Universidad Nacional Mayor de San Marcos: Instituto de Ciencias Biológicas "Antonio Raimondi", 2008Co-Authors: Pequeño Germán, Sáez SylviaAbstract:Doydixodon laevifrons is commonly known as baúnco, but in latest papers it has also been cited as Girella laevifrons without any explanation for this change generic. The purpose of this paper is to review the morphological features of diagnostic for the genera Doydixodon Valenciennes, 1846 and Girella Gray, 1835, and their presence or absence in specimens of Doydixodon laevifrons from central Chile. We conclude that Doydixodon laevifrons is synonymous minor (=junior) of Girella laevifrons and it is distributed by the littoral, from the south coast of Peru, until approximately El Tabo (33°27'S, 71°41'W) in Chile. Thus, is the species with southernmost distribution in the genus. A taxonomic revision of the genus Girella Gray, 1835 in the southeastern Pacific, is suggested.Doydixodon laevifrons es un pez comúnmente conocido como baúnco, y en los últimos tiempos también ha sido citado como Girella laevifrons en recientes publicaciones sin explicaciones que avalen tal cambio genérico. El objetivo del presente trabajo es revisar las características morfológicas diagnósticas de los géneros Doydixodon Valenciennes, 1846 y Girella Gray, 1835, y su presencia o ausencia en ejemplares de Doydixodon laevifrons procedentes de Chile central. Concluimos que Doydixodon laevifrons es un sinónimo menor (=junior) de Girella laevifrons y se distribuye por la franja litoral, desde la costa sur de Perú, hasta aproximadamente El Tabo (33º27'S, 71º41'W) en Chile. Es la especie de distribución más austral en su género. Se sugiere revisar la taxonomía del género Girella Gray, 1835, en el Pacífico sur oriental
