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Composição das populações de linguados (Osteichthyes, Pleuronectiformes) da Baía de Sepetiba, Rio de Janeiro, Brasil Zoologia
Mendonça,Pablo; Araújo,Francisco Gerson.
Bi-monthly otter trawl sampling programme using a stratified random design was carried out at Sepetiba Bay (22º54'-23º04'S; 43º34'-44º10'W), from August 1994 to July 1996, aiming to assess the flatfish species composition and their relative abundance. Fourteen species in eight genera, four families and one suborder were identified. Paralichthyidae is the most diverse and abundant family, contributing to 70% of total number of individuals and to 58,8% of total biomass, being comprised of nine species: Etropus crossotus (Jordan & Gilbert, 1882); E. longimanus (Norman, 1933); Citharichthys spilopterus (Günther, 1862); C. arenaceus (Evermann & Marsh, 1902); C. macrops (Dresel, 1889); Paralichthys orbignyanus (Valenciennes, 1847); P....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Flatfish; Pleuronectiformes; Paralichthyidae; Sepetiba Bay.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000200005
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Ecologie du système hôte - parasite, juvéniles G0 de sole (Solea solea) - métacercaires de Digènes : dynamique et effets de l'infestation ArchiMer
Durieux, Eric.
Coastal areas, such as shallow water bays and estuaries, serve as nurseries for juveniles of many marine fishes and especially flatfishes. Parasites play an important role in these marine ecosystems, but it remains poorly studied. Little attention has been paid to parasitism as a potential factor of variation in flatfish juveniles biological performances in these habitats. Sole juveniles, Solea solea (Pleuronectiformes, Soleidae), that is a species of primary importance for fisheries, are infected by digenean metacercariae. Thus, the aims of this PhD thesis were: i) to determine the spatio-temporal dynamics of the digenean metacercariae infection of 0-group sole juveniles at different scales; ii) to estimate the effects of this infection at different...
Tipo: Text Palavras-chave: North East Atlantic; Mussel farming; Biological tags; Behaviour; Condition indices; Growth; Immunity; Parasitism; Flatfish; Nurseries; Atlantique Nord Est; Mytiliculture; Marqueurs biologiques; Comportement; Indices de condition; Croissance; Immunité; Parasitisme; Pleuronectiformes; Nourriceries.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/these-2933.pdf
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Indicadores reprodutivos das espécies de Citharichthys Bleeker (Teleostei, Pleuronectiformes) na Baía de Guaratuba, Paraná, Brasil Zoologia
Chaves,Paulo de Tarso C; Vendel,Ana Lúcia.
The species of Citharichthys Bleeker, 1862, C. arenaceus Evermann & Marsh, 1900 and C. spilopterus Günther, 1862, are the most common flatfishes found in Guaratuba Bay, south Brazil. Different size categories of these flatfish occur in the mangrove area throughout the year. The Gonadosomatic Index, the Condition Factor, and the morphological analyses of the gonads from samples obtained between 1994 and 1996 reveals a spawning activity during late Spring and early Summer. This period coincides with the increase in temperature and decrease in salinity. Spawning evidence and the presence of ali size categories throughout the year indicate that Citharichthys spp. are permanent inhabitants of the mangrove in Guaratuba Bay, where they complete their life...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Teleostei; Pleuronectiformes; Fish reproduction; Guaratuba Bay; Brazil.
Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751997000100007
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NPY and sbGnRH gene expression in juvenile and adult male Brazilian flounder Paralichthys orbignyanus Ciência Rural
Campos,Vinicius Farias; Collares,Tiago Veiras; Seixas,Fabiana Kömmling; Deschamps,João Carlos; Marins,Luis Fernando Fernandes; Okamoto,Marcelo Hideo; Sampaio,Luís André Nassr; Robaldo,Ricardo Berteaux.
The objective of this study was to evaluate neuropeptide Y (NPY) and sea bream gonadotropin-release hormone (sbGnRH) gene expression in juvenile and adult males of Brazilian flounder. Hypothalamuses from fish were sampled for total RNA extraction. After cDNA synthesis, real-time PCR was used to measure gene expression. NPY showed approximately 2-fold increases in their mRNA levels while sbGnRH showed 3-fold increases in adult fish. These results suggest that these peptides could be involved on hypothalamic regulation of Brazilian flounder sexual maturation.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sexual maturation; Fish; Pleuronectiformes; MRNA.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011001100013
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Osteología Comparada del Esqueleto Caudal de Achirus lineatus y Achirus mazatlanus (Pleuronectiformes: Achiridae) International Journal of Morphology
Gracian-Negrete,Jatziry Marlene; González-Acosta,Adrián Felipe; González-Isáis,Mónica; Ortiz-Galindo,José Luis; Del Moral-Flores,Luis Fernando.
El esqueleto caudal constituye una importante herramienta para evaluar las relaciones ancestro-descendencia de los peces teleósteos. Por tal motivo, se realizó un análisis osteológico comparativo de dicha estructura, a partir de ejemplares de las especies Achirus lineatus (Linnaeus, 1758) y A. mazatlanus (Steindachner, 1869), obtenidos de colecciones científicas de referencia y recolectados in situ en Veracruz y Baja California Sur (México). Los organismos fueron identificados con claves taxonómicas especializadas y procesados mediante la técnica de aclaración y tinción diferencial, para evaluar las posibles similitudes o diferencias en las estructuras que componen al complejo caudal. Achirus lineatus y A. mazatlanus se caracterizan por la presencia de una...
Tipo: Journal article Palavras-chave: Pleuronectiformes; Achiridae; Achirus; Esqueleto caudal; Aclaración y tinción diferencial; Osteología comparada.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000200058
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Osteología craneal comparada de tres especies de lenguado del género Paralichthys (Pleuronectiformes, Paralichthyidae) del Atlántico suroccidental RChHN
DÍAZ DE ASTARLOA,JUAN M..
Se realiza un análisis osteológico comparativo del esqueleto craneal en Paralichthys isosceles, P. orbignyanus y P. patagonicus, tres especies de lenguados presentes en el Atlántico suroccidental. Se describen las características de los componentes óseos y se detallan las diferencias morfológicas y morfométricas encontradas, con el fin de aportar elementos diagnósticos para la identificación taxonómica de las tres especies de Paralichthys. Se utilizaron técnicas de desarticulación de esqueletos, tanto en ejemplares frescos congelados, como en especímenes conservados en líquidos fijadores. También fueron usadas técnicas de clareado y tinción diferencial para ejemplares de pequeño tamaño. Se observaron potenciales características diagnósticas para la...
Tipo: Journal article Palavras-chave: Pleuronectiformes; Paralichthys; Osteología; Esqueleto cranial; Atlántico suroccidental.
Ano: 2005 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2005000300002
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Spatial and temporal variations of fish assemblages in a shallow Mediterranean soft-bottom area (Gulf of Fos, France) ArchiMer
Letourneur, Y; Darnaude, A; Salen-picard, C; Harmelin-vivien, M.
The fish assemblages of two shallow soft-bottom areas located in the Gulf of Fos (NW Mediterranean) were studied by means of 57 trawl surveys carried out on both seasonal and diel scales between 1983 and 1985. A total of 47 fish species was recorded, with a mean density and biomass of 650 individuals ha(-1) and 2.67 kg ha(-1), respectively. Most of the fluctuations observed were on the spatial scale. Strong differences in fish assemblages were observed between the two areas, with both higher species richness and biomass in the outer part of the gulf (La Gracieuse), while a higher density of individuals characterised its inner part (Bay of Carteau). This spatial pattern was due to a small number of species, such as the gobiids Gobius niger and Pomatoschitus...
Tipo: Text Palavras-chave: Ichtyofaune démersale; Gobiidae; Pleuronectiformes; Distribution spatiale; Variations temporelles; Demersal ichthyofauna; Gobiidae; Pleuronectiforms; Spatial distribution; Temporal variations.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/00322/43355/42858.pdf
Registros recuperados: 7
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