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| Registros recuperados: 11 | |
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| Castro,André Luiz da Costa; Diniz,Aline de Farias; Martins,Ieda Zaparolli; Vendel,Ana Lúcia; Oliveira,Tacyana Pereira Ribeiro de; Rosa,Ierecê Maria de Lucena. |
| This paper presents the results of the first analysis of the natural diet of Hippocampus reidi, one of the most sought after seahorse species in the international aquarium trade. Its main goals were to investigate food items and prey categories consumed by the species, and to discuss feeding strategy and inter and intra-individual components of niche breadth. Data were gathered from October 2005 to September 2006 at the Mamanguape estuary, State of Paraíba, NE Brazil. Food items from seahorses anaesthetized with clove oil were obtained by using a modified version of the flushing method, and were counted and identified to the lowest possible taxonomic level. Specimens were marked and had their height, sex, life and reproductive stage recorded, and then... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Natural diet; Husbandry; Conservation. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000400012 |
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| Queiroga,Fernando R.; Golzio,Jéssica E.; Santos,Raphaela B. dos; Martins,Tayná O.; Vendel,Ana Lúcia. |
| The present study investigated the reproductive biology of Sciades herzbergii in the Paraíba do Norte River Estuary, Brazil. We aimed to characterize the reproduction of the species with respect to sex ratio, spawning season, condition factor and length at first maturity. Specimens were captured between August 2009 and July 2010 in a stretch of the main channel of the estuary. In the laboratory, they were measured, weighed and macroscopically classified with regard to sex and gonad development stage, and their gonads were weighted. The monthly distribution of the sexes and their respective stages of maturation were determined. The gonadosomatic index (GSI), condition factor (K) and the length at first maturity were calculated for males and females. The sex... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Condition factor; Gonadosomatic index; Mean length at first maturity; Paraíba do Norte River Estuary; Pemecou sea catfish; Spawning period. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000500002 |
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| Chaves,Paulo de T.; Vendel,Ana Lúcia. |
| Estudou-se a composição da dieta de peixes em dois tipos de ambiente de áreas rasas estuarinas - marisma e manguezal, objetivando avaliar se essas formações vegetais desencadeiam na ictiofauna respostas diferentes quanto à alimentação. As seis espécies avaliadas, as mais abundantes nessas áreas, mostraram-se predominantemente planctívoras, porém com particularidades quanto ao tipo de vegetação ocupada. Na marisma, Atherinella brasiliensis (Quoy & Gaimard, 1825) apresentou a dieta com maior número de itens e menor similaridade em relação às demais espécies. No manguezal tal isolamento coube a Anchoa januaria (Steindachner, 1879), espécie com maior participação de Decapoda Brachyura e Decapoda não-Brachyura, e única que nesse ambiente incluiu... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anchoa lyolepis; Anchoviella lepidentostole; Harengula clupeola; Opisthonema oglinum; Atherinella brasiliensis. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000100002 |
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| 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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| Vendel,Ana Lúcia; Chaves,Paulo de Tarso da Cunha. |
| Seasonal variation of food items of Bairdiella ronchus (Cuvier, 1830) classified by size was analysed based on monthly samples between september/1993 and september/1996 at the Guaratuba Bay, Southern Brazil. The stomach contents of a hundred eighty-two fishes were analysed by the Occunence Frequency Method and Point Count for a Lot Method. The individuais were divided in two groups, smaller and longer than 140mm, and a comparative study of digestive tract and branchial are was performed for these groups. For fishes smaller than 140mm the following sequence of items was obtained matching both methods by using the Preponderance índices: decapods (subdivided in Brachyura, Caridea and Penaeidea), polychaets, isopods, fishes, unidentified material, copepods,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diet; Bairdiella ronchus; Sciaenidae; Guaratuba Bay. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000200003 |
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| Vendel,Ana Lúcia; Lopes,Sabine Granado; Santos,César; Spach,Henry Louis. |
| Studies were carried out on fish assemblages in a tidal flat. Samples were obtained monthly at low tide of the half moon in the tidal flat of Paranaguá Bay, Brazil, with two seine nets, one with a 1 mm mesh, 30 m in length and 3 m in height and another with a 10 mm mesh, 65 m in length and 2 m in height. A total of 8,890 fish were captured, comprising 24 families and 53 species. The most abundant species were Harengula clupeola and Atherinella brasiliensis, which represented 63.4% of the total, capture. A seasonal tendency was observed in the abundance of fishes, with less fishes being captured during winter and part of spring. The number of species showed a seasonal pattern, with the gradual decrease through winter and a marked increase in summer. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tidal flat; Fish assemblages; Seasonal variation; Brazil. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000200015 |
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| Vendel,Ana Lúcia; Spach,Henry Louis; Lopes,Sabine Granado; Santos,César. |
| Studies were carried out on structure and dynamics of fish assemblages in the Baguaçu tidal creek, Paranaguá Bay, Brazil. A total of 30,104 fish were captured, comprising 21 families and 47 species. Both in weight and in number, the species Anchoa parva prevailed. Monthly captures in number and weight were largest in the autumn and part of the winter. No seasonal tendency was observed in the indexes of community structure. The dendrogram produced by the classification of the samples separated the 12 months of collection into three groups, reflecting differences in the qualitative and quantitative occurrences of the most important taxa. Some ecological likeness, not only seasonal patterns of abundance, seemed evident in the seasonality of the groupings of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tidal creek; Fish assemblages; Seasonal variation; Brazil. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000300015 |
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| Chaves,Paulo de Tarso C.; Vendel,Ana Lúcia. |
| Feeding habits of Stellifer rastrifer (Perciformes, Sciaenidae) at Guaratuba mangrove, Parana, Brazil, were studied from February 1996 to February 1997. It was observed that its diet was based on invertebrates, mainly Decapoda non-Brachyura and Polychaeta. In a smaller proportion there were plants, Copepoda, Gammaridea and Mollusca. The level of contribution of each food item changed according to the season and the individual size. Such plasticity in feeding behaviour was similar to that described to some fish populations from other estuaries, and could be an indicator of the high level of instability presented by this kind of ecosystem. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feeding habit; Stellifer rastrifer; Sciaenidae; Mangrove; Guaratuba; Parana. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131998000400006 |
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| Registros recuperados: 11 | |
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