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| TAVARES-DIAS,Marcos; OLIVEIRA,Marcos Sidney Brito; GONÇALVES,Raissa Alves; NEVES,Lígia Rigor. |
| ABSTRACT Assessment of biodiversity is fundamental for the understanding of ecological interactions, but fish parasites were neglected in biodiversity estimates for a long time. The aim of this paper was to investigate the diversity of parasites in Satanoperca jurupari in the Amazon River system in Brazil. Of the fish examined, 90.0% were parasitized by one or more species of protozoans and metazoans, and a total of 3,110,094 parasites were collected. Ichthyophthirius multifiliis, Piscinoodinium pillulare, Sciadicleithum juruparii, Clinostomum marginatum, Posthodiplostomum sp., Genarchella genarchella, Argulus multicolor and Ergasilus coatiarus were found. However, I. multifiliis and P. pillulare were the most prevalent, abundant and dominant parasites,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aggregation; Cichlidae; Freshwater fish; Parasites. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000200155 |
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| Favero,Jana Menegassi del; Pompeu,Paulo dos Santos; Prado-Valladares,Ana Carolina. |
| Com o principal objetivo de fornecer ferramentas para auxiliar na implementação do manejo sustentável de peixes ornamentais na Reserva de Desenvolvimento Sustentável Amanã, Amazonas, foi realizado o estudo da biologia reprodutiva de Heros efasciatus Heckel, 1840, um ciclídeo com potencial ornamental e com poucos trabalhos sobre a sua biologia e ecologia, apesar de já ser comercializado em algumas regiões amazônicas. Coletas bimestrais foram realizadas de fevereiro de 2006 a janeiro de 2007 em dez igarapés contribuintes do Lago Amanã e Urini, sendo utilizados três aparelhos de pesca (rede de arrasto, rapiché e armadilha tipo matapi) e ainda galhadas artificiais nas amostragens realizadas próximas aos lagos. Foram capturados 140 exemplares de H. efasciatus,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazonas; Cichlidae; Peixe ornamental; Reprodução de peixes. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672010000200015 |
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| Silva, Marlene Rodrigues da; Universidade Estadual de Maringá; Natali, Maria Raquel Marçal; Universidade Estadual de Maringá; Hahn, Norma Segatti; Universidade Estadual de Maringá. |
| the esophagus, stomach and intestine of Satanoperca pappaterra using histological techniques. The species presents detritivore-invertivore feeding habit and is widely distributed in Neotropical continental waters. The esophagus is short, the stomach is small with saccular form and the intestine is long. The histological sections were stained using hematoxylin/eosin and Periodic Acid Schiff. Throughout the digestive tract, the gastric wall is composed by four different tunicae: mucosa, submucosa, muscularis externa and serosa, besides distinct intrinsic innervation represented by the submucosal and myenteric ganglionated plexuses. Depending on the organ, several characteristics were peculiar such as the external muscle layer of the esophagus that permeates... |
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Palavras-chave: Freshwater fish; Cichlidae; Histological methods; Digestive tract. |
| Ano: 2012 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/8956 |
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| Daneshvar,Ehsan; Ardestani,Mahsa Y.; Dorafshan,Salar; Martins,Mauricio L.. |
| This study describes the hematological parameters in Iranocichla hormuzensis, an Iranian freshwater cichlid important as ornamental and food fish. Forty fish were captured with seine net at Mehran river Hormozgan province, Iran. Blood was used to determine the total counts of red blood cells (RBC) and white blood cells (WBC), hematocrit, mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC) and morphometric data of erythrocytes. The Iranian fish showed lower RBC and WBC values than the other cichlids (Oreochromis niloticus, O. aureus, O. mossambicus, O. hybrid, Cichlasoma dimerus and Cichla monoculus). Hematocrit did not vary among the species, but MCV, MCH and MCHC in I. hormuzensis were higher... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cichlidae; Iran; Hematology; Erythrocytes. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000400009 |
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| Gibran,Fernando Zaniolo; Ferreira,Katiane Mara; Castro,Ricardo M. C.. |
| We qualitatively studied the gut contents of 20 specimens (36.1-71.3 mm standard length) of the pike cichlid Crenicichla britskii from a 100 m stretched second order stream running inside a small gallery forest in a large pasture area of Rio Aguapeí basin, State of São Paulo, southeastern Brazil. The diet, in terms of per cent composition, constituted primarily of aquatic insects (50%) (mostly immature forms), crustaceans (14.3%), unidentified organic material and filamentous green algae (both with 10.7%), followed by fishes and arachnids (both with 7.1%). Diet analysis indicates that C. britskii is a generalist insectivore with a relatively short digestive tube, which feeds on autochthonous items captured in a broad array of habitats such as in the water... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Cichlidae; Crenicichla britskii; Diet; Upper Rio Paraná system; Southeastern Brazil. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032001000100007 |
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| Hahn,Norma Segatti; Cunha,Fabiane. |
| The aim of this work was to evaluate the relationship between diet and features of the trophic ecomorphology of Satanoperca pappaterra (Heckel, 1840) in an impacted environment. Samples were collected from March 2000 to February 2003 in Manso Reservoir, Cuiabá River, Mato Grosso State. Analysis of 93 stomachs contents showed that food resources associated with the substrate, such as plant remains, detritus, fish scales and Chironomidae larvae, dominated the diet. Consequently this species was characterized as a detritivorous-invertivorous. However, individuals collected in 2003 showed a greater selection of benthic organisms in relation to previous periods. Morphological structures such as position of the mouth, form of the lips, gill rakers and pharyngeal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cichlidae; Diet; Morphology; Freshwater. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000800017 |
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| Weliange, Wasantha S.; Amarasinghe, Upali S.; Moreau, Jacques; Villanueva, Ching-maria. |
| Twelve diel surveys were carried out in three reservoirs of Sri Lanka viz. Minneriya, Udawalawe and Victoria, to investigate diel feeding patterns, daily ration and relative food consumption in fish populations. Stomach content weights of different size classes of various fish species in the three reservoirs in 12 diel surveys were analysed using an iterative method, MAXIMS. Predominantly herbivorous or detritivorous fish species such as Amblypharyngodon melettinus and Oreochromis niloticus exhibited one peak in the diel feeding pattern. Two peak feeding periods were evident in predominantly insectivores and/or zooplanktivores (e. g., Puntius chola and Rasbora daniconius) and interestingly in macrophyte feeders (i.e., Etroplus suratensis, Puntius... |
| Tipo: Text |
Palavras-chave: Cichlidae; Cyprinidae; Trophic modelling; Freshwater fish; Feeding chronology; Diel feeding pattern. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-2134.pdf |
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| Torres R,G. A; González P,S; Peña S,E. |
| La tilapia (Oreochromis niloticus) es un pez presente en muchos ecosistemas de agua dulce, en diversas regiones de Colombia. Esta especie es una fuente de alimentación de alta demanda de la población en general, por lo cual es de gran interés que su hábitat acuícola estélibre de contaminantes, con el fin que el especimen se desarrolle y crezca normalmente y asípueda ser consumido por el ser humano sin ningún perjuicio. Las branquias y el hígado de peces son considerados como los órganos primarios donde detectar efectos de polución. Este estudio muestra la morfología normal de las branquias e hígado de tilapia, a través de microscopías: de luz, óptica de alta resolución (MOAR), electrónica de transmisión (TEM) y de barrido (MEB); como un estudio básico para... |
| Tipo: Journal article |
Palavras-chave: Branquia; Hígado; Morfología; Cichlidae. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000300008 |
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| Oijen, M.J.P. van. |
| In chronologic order of publication, all papers dealing with the systematics of haplochromine cichlids of Lake Victoria are analysed with regard to the generic classification of the species. Taxonomists have disputed and changed the generic classification soon after cichlids from Lake Victoria were first described. At the turn of the century, different opinions among taxonomists working on Lake Victoria haplochromines were mainly based on the fact that they studied different material. The study of more extensive collections yielded the impression that differences between the species are gradual, rendering the delimitation of genera problematic. Recently, an attempt to use cladistic methods for the unravelling of the phylogeny of the haplochromines has... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Cichlidae; Haplochromis; Haplochromine cichlids; Lake Victoria; Generic revision.; 42.81. |
| Ano: 1996 |
URL: http://www.repository.naturalis.nl/record/317663 |
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| Rodrigues,Raoni Rosa; Carvalho,Lucélia Nobre; Zuanon,Jansen; Del-Claro,Kleber. |
| Animal coloration has many functions, and fishes are noted among vertebrates for presenting a wide variety of color patterns. Although in marine fishes the relationship between body coloration and behavioral context is well documented, there's not much information about freshwater fishes. Here we describe color patterns displayed by the dwarf cichlid Apistogramma hippolytae and suggest that these patterns are dependent on different social and behavioral settings. Field observations were conducted underwater in a pond in Central Amazonia, Brazil. We recorded six body coloration patterns related to seven different kinds of behavioral activities: foraging, resting, reproductive and agonistic displays, aggression (attacking and fleeing) and parental care.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Intraspecific communication; Interspecific communication; Color changes; Parental care; Cichlidae. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000400013 |
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| Registros recuperados: 30 | |
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