Consulta: subjectFacets:"Cichlidae"
Registros recuperados: 31
Data/hora: 06/06/2024 04:26:46

Diel feeding periodicity, daily ration and relative food consumption in some fish populations in three reservoirs of Sri Lanka
Provedor de dados: 5
Autores: 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

Energy-protein management by some warmwater finfishes.
Provedor de dados: 5
Autores: Luguet, P; Moreau, Y.
If warmwater finfish protein requirements as level in diet is low, absolute intake per day is similar to those of coldwater species. But relation of this requirement with specific growth rate differs for strictly warmwater fishes as Tilapias. Analysis of partition between protein and non-protein energy retention shows that these species with Clarias make a better use of non-protein energy provided and consequently improve their protein retention. Better carbohydrate digestibility and metabolism are propounded as part of the explanation.
Tipo: Text
Palavras-chave: Clarias; Oreochromis mossambicus; Oreochromis aureus; Oreochromis niloticus; Tilapia; Cichlidae; Pisces; Nutritional requirements; Digestibility; Diets; Proteins; Metabolism; Carbohydrates; Nutrition; Feeding; Growth rate.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1424.pdf

Descripción Anatómica, Histológica y Ultraestructural de la Branquia e Hígado de Tilapia (Oreochromis niloticus)
Provedor de dados: 77
Autores: 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

A systematic revision of the piscivorous haplochromine Cichlidae (Pisces: Teleostei) of Lake Victoria (East Africa). Part I
Provedor de dados: 16
Autores: Oijen, M.J.P. van.
The distinction between Harpagochromis and Prognathochromis, and the distinction between these and other cichlid genera of Lake Victoria as proposed by Greenwood (1980), is demonstrated to be artificial. The BM(NH) collections of Haplochromis dichrourus and H. pellegrini were found to be polyspecific and are redescribed. On the basis of specimens formerly included in H. pellegrini a new species is described. Five new species are described based on material from the Mwanza Gulf and Maisome Island. Specimens of H. dichrourus from different areas of Lake Victoria are described separately to demonstrate geographic variation.
Tipo: Article / Letter to the editor
Palavras-chave: Cichlidae; Piscivorous haplochromine cichlids; Lake Victoria; Haplochromis; Harpago- chromis; Prognathochromis; New species; Geographical variation.; 42.81.
Ano: 1991
URL: http://www.repository.naturalis.nl/record/317682

Taxonomical and ecological description of a species complex of zooplanktivorous and insectivorous cichlids from Lake Victoria
Provedor de dados: 16
Autores: Oijen, M.J.P. van; Witte, F.
The zooplanktivorous Haplochromis tanaos spec. nov., and the morphologically very similar but insectivorous Haplochromis thereuterion spec. nov., from Lake Victoria (East Africa) are described and compared to Haplochromis diplotaenia Regan &amp; Trewavas, 1928, a similar species which is known only from the holotype. Intraspecific variation is described for both new species. Ecological data of the new species are compared to those of known zooplanktivores and insectivores from the Mwanza Gulf area. Both new species disappeared concurrently with the Nile perch (Lates) upsurge early in the 1980's. The recent occurrence of individuals closely resembling the new species, in a different habitat close to the original one, is analysed.
Tipo: Article / Letter to the editor
Palavras-chave: Cichlidae; Haplochromis; Zooplanktivores; Insectivores; Ecological segregation; Intraspeci- fic variation; Ontogeny; Sexual heterodonty; Nile perch; Lates; Predation; Habitat shift.; 42.81.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/317563

A redescription of Haplochromis labriformus (Nichols &amp; LaMonte, 1938)
Provedor de dados: 16
Autores: Oijen, M.J.P. van; Witte, F.
The single cichlid fish from Lake Victoria on which Nichols &amp; LaMonte (1938) based their new species Tilapia labriforma was re-examined. It turned out to be a haplochromine cichlid. The specimen is redescribed and compared to similar species from Lake Victoria.
Tipo: Article / Letter to the editor
Palavras-chave: Cichlidae; Haplochromis labriformus; Redescription; Lake Victoria; 42.81.
Ano: 2003
URL: http://www.repository.naturalis.nl/record/216167

Seven new species of detritivorous and phytoplanktivorous haplochromines from Lake Victoria
Provedor de dados: 16
Autores: Zeeuw, M.P. de; Mietes, M.; Niemantsverdriet, P.; Huurne, S. ter; Witte, F.
Seven new species of haplochromine cichlids from Lake Victoria are described. They comprise four detritivorous and three phytoplanktivorous species. Their affinities to other Lake Victoria haplochromines are discussed.
Tipo: Article / Letter to the editor
Palavras-chave: Cichlidae; Detritivores; East Africa; Haplochromis; Phytoplanktivores; 42.81.
Ano: 2010
URL: http://www.repository.naturalis.nl/record/358750

Haplochromis ushindi spec. nov., the largest piscivorous cichlid in the Mwanza Gulf area of Lake Victoria (East Africa) before the Nile perch upsurge
Provedor de dados: 16
Autores: Oijen, M.J.P. van.
A new species of a haplochromine cichlid (Pisces: Cichlidae: Haplochrominae) from Lake Victoria is described. It is the largest species known from the Mwanza gulf area before the Nile perch upsurge in 1986. Specimens have been collected between 1975 and 1985. Presumably, the species does not exist anymore and is considered to be extinct.
Tipo: Article / Letter to the editor
Palavras-chave: Cichlidae; Piscivore; Lake Victoria; Haplochromis; New species; 42.81.
Ano: 2004
URL: http://www.repository.naturalis.nl/record/214432

Haplochromis vonlinnei spec. nov., a piscivorous haplochromine cichlid (Teleostei, Perciformes) from the Mwanza Gulf area of Lake Victoria, Tanzania
Provedor de dados: 16
Autores: Oijen, M.J.P. van; Zeeuw, M.P. de.
A new species of haplochromine cichlid from Lake Victoria, only known from the Mwanza Gulf area is described.
Tipo: Article / Letter to the editor
Palavras-chave: Cichlidae; Piscivores; Lake Victoria; Haplochromis; New species; 42.81.
Ano: 2008
URL: http://www.repository.naturalis.nl/record/261776

The generic classification of the haplochromine cichlids of Lake Victoria, East Africa
Provedor de dados: 16
Autores: 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

Haplochromis howesi spec. nov., a crab and fish eating cichlid from Lake Victoria
Provedor de dados: 16
Autores: Oijen, M.J.P. van.
A new, crab and fish eating Haplochromis species, with a piscivorous fades, occurring in rocky habitats in Lake Victoria is described. Special attention is given to the squamation of the dorsal and anal fin membranes. Food preferences of juveniles and adults are discussed, and the decline of this species, in a habitat in which piscivorous Nile perches do not occur, is analysed.
Tipo: Article / Letter to the editor
Palavras-chave: Cichlidae; Crab eater; Piscivore; Lake Victoria; Haplochromis; New species; Fin squamation; 42.81.
Ano: 1992
URL: http://www.repository.naturalis.nl/record/319021

The more stirring the better: cichlid fishes associate with foraging potamotrygonid rays
Provedor de dados: 83
Autores: Garrone-Neto,Domingos; Sazima,Ivan.
One hunting tactic of freshwater rays (Potamotrygonidae), termed "undulate the disc and stir substrate", is here reported to attract cichlids at two sites in the upper Paraná River. The ray species involved in such association are Potamotrygon falkneri and P. motoro, whose activity attract four cichlid species, namely Crenicichla britskii, Satanoperca pappaterra, Cichla kelberi, and Geophagus proximus, the two latter non-native species to the study area. The cichlids approach a ray when it begins to stir the substrate and form sediment clouds, and remain close to the ray during this activity only. The association is here regarded as following behavior even if very transient.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cichlidae; Feeding association; Potamotrygonidae; Hunting tactics; Southeastern Brazil.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000300018

Social and reproductive physiology and behavior of the Neotropical cichlid fish Cichlasoma dimerus under laboratory conditions
Provedor de dados: 83
Autores: Alonso,Felipe; Cánepa,Maximiliano; Moreira,Renata Guimarães; Pandolfi,Matías.
In this work we describe for the first time the social and reproductive behavior of the Neotropical fish Cichlasoma dimerus (Heckel, 1840) [Perciformes: Cichlidae], endemic to the Paraná River basin, using a comprehensive-integral approach, including morphological and physiological features. This substrate breeding fish has biparental care of the fry and presents a dominance hierarchy that determines access to breeding territories among males, and to males with territories among females. Gregarious behavior associated with a pale body color, was observed before reproductive behaviors started. Afterwards, a dominance hierarchy was established through aggressive interactions. Territorial individuals had bright body color patterns and non territorial an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cichlidae; Cortisol; Gonadosomatic index; Gonadotropins; Somatolactin.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000300009

A new species of Gymnogeophagus from the río Negro and río Tacuarí basins, Uruguay (Teleostei: Perciformes)
Provedor de dados: 83
Autores: González-Bergonzoni,Iván; Loureiro,Marcelo; Oviedo,Sebastián.
The new cichlid species Gymnogeophagus tiraparae is described from the río Negro and río Tacuarí basins (Uruguay). The new species is distinguished from other Gymnogeophagus species by the unique presence of the following characters: adipose hump on head deeper than the dorsal-fin upper border, adipose hump with anterior profile vertical, extending from the upper lip to the dorsal-fin origin, absence of transversal bands on body; two horizontal series of moderately elongated light blue dots between dorsal fin spines, and a series of light blue stripes between soft rays, sometimes merged with the second series of elongated dots, always with a red ground color between series of dots, and caudal fin with dots vertically aligned on its distal border. According...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cichlidae; Systematics; Neotropical.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000100003

Environmental enrichment reduces aggression of pearl cichlid, Geophagus brasiliensis, during resident-intruder interactions
Provedor de dados: 83
Autores: Kadry,Vivian Oliveira; Barreto,Rodrigo Egydio.
Among fishes, when residents and intruders fight, residents usually win, most likely because they value the residence more than intruders. We hypothesized that enriched environments increase the value of an area in dispute, causing a resident to more fiercely defend a resource-rich environment than a poor one. However, in the present study, intruder-resident tests with the pearl cichlid, Geophagus brasiliensis, showed environmental enrichment actually reduces aggression and can even lead to co-habitation without fighting. Additionally, in our experiments, the prior residence effect occurred irrespective of enrichment condition. Decreased visibility from increased habitat complexity reduces interactions between fish and consequently might explain the lower...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fighting; Territoriality; Intruder-resident paradigm; Resource holding power; Cichlidae.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000200011

A new species of Gymnogeophagus Miranda Ribeiro from Uruguay (Teleostei: Cichliformes)
Provedor de dados: 83
Autores: Loureiro,Marcelo; Zarucki,Matías; Malabarba,Luiz R.; González-Bergonzoni,Iván.
ABSTRACT We describe a new species of a substrate-brooding Gymnogeophagus , based on coloration characters. The new species can be distinguished from the remaining substrate-brooding species in the genus by the unique pigmentation of the dorsal fin which consists of light blue, diagonal stripes over a red background in the spiny section and a combination of round, elliptic, and elongated bright blue spots over a red background in the soft section. It can be further distinguished from all other species of Gymnogeophagus by the following combination of characters: a discontinuous bright blue band above the upper lateral line in the humeral area, light blue roundish spots over a red to orange background on the anal fin, and conspicuous bright blue horizontal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cichlidae; Gymnogeophagus meridionalis; Gymnogeophagus rhabdotus; Substrate brooding; Systematics.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000100215

Population structure and reproductive behavior of Sinaloa cichlid Cichlasoma beani (Jordan, 1889) in a tropical reservoir
Provedor de dados: 83
Autores: García-Lizárraga,Melgen A.; Soto-Franco,Francisco Enrique; Velazco-Arce,Javier Marcial de Jesús Ruiz; Velázquez-Abunader,José Iván; Ramírez-Pérez,Jorge Saúl; Peña-Messina,Emilio.
The population structure and reproductive condition of the Sinaloa cichlid Cichlasoma beani from samples obtained from June 2000 to July 2001 were determined. Samples in the first week each month from the largest trader of tilapia in the Aguamilpa Reservoir in Mexico and were caught in gillnets (9.6 and 11.4 cm stretch-mesh size). Of 596 specimens, there were 427 males and 169 females; monthly sex ratio, frequency of lengths by the multinomial distribution, timing of reproduction, condition index, and size at first maturity was determined. Differences in the sex ratio and monthly totals were significant, favoring males, except for September 2000 and March 2001. From one (August 2000) to three modal groups (July 2000 and June 2001) were identified by size....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cichlidae; Condition index; Length at maturity; Length frequency; Reproduction.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000300012

Reproductive behavior and parental roles of the cichlid fish Laetacara araguaiae
Provedor de dados: 83
Autores: Teresa,Fabrício Barreto; Freitas,Eliane Gonçalves-de.
We described the reproductive behavior of the small South American cichlid Laetacara araguaiae in streams from Brazil. We predicted that this species will show reproductive cooperation and division of labor between males and females in a similar way presented by other substrate-spawner cichlids. Thus, we studied 34 pairs in the pre-spawning (n = 11), egg/wriggler (n = 11) and fry (n = 12) phases. In the pre-spawning phase both sexes become involved in nest building and territorial defense, but females emphasizes building nest (p = 0.03), while males invest more time in territorial defense (p = 0.04). After spawning, male and female alternate between rearing eggs and defending nest in the territory. In the egg/wriggler phase females devotes more time...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bi-parental care; Cichlidae; Courtship; Division of labor; Ethogram; Nest building.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000200013

Dietary habits of juveniles of the Mayan cichlid, Cichlasoma urophthalmus, in mangrove ponds of an offshore islet in Belize, Central America
Provedor de dados: 83
Autores: Vaslet,Amandine; France,Christine; Baldwin,Carole C.; Feller,Ilka C.
Foraging habitats of juveniles of the Mayan cichlid, Cichlasoma urophthalmus (Günther, 1862), were investigated in two mangrove ponds located in Twin Cays offshore islet in Belize: Sink Hole pond (SH) and Hidden Lake pond (HL). Sink Hole pond is a semiclosed body of water, whereas Hidden Lake pond is connected by a channel to adjacent seagrass beds that surround the islet. Gut contents of 21 juvenile C. urophthalmus (9.8-13.2 cm total length) were analyzed, and five prey taxa were identified. In both mangrove ponds, C. urophthalmus were opportunistic carnivores and consumed primarily crustaceans. Plant material and detritus present in gut contents were most likely ingested incidentally when the fish foraged on small invertebrates. Carbon isotopic values of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caribbean; Cichlidae; Diet; Seagrass beds; Stable isotopes.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000300021

Color changing and behavioral context in the Amazonian Dwarf Cichlid Apistogramma hippolytae (Perciformes)
Provedor de dados: 83
Autores: 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

Neotropical Monogenoidea 62. Biotodomella mirospinata gen. nov., sp. nov. (Polyonchoinea: Dactylogyridae): a parasite of the gills of Biotodoma cupido (Cichliformes: Cichlidae), from the Peruvian Amazon
Provedor de dados: 103
Autores: Morey,Germán Augusto Murrieta; Arimuya,Mariana Vásquez; Boeger,Walter A.
ABSTRACT Biotodomella gen. nov. (Monogenoidea: Dactylogyridae) is proposed to accommodate Biotodomella mirospinata sp. nov., found on the gills of Biotodoma cupido (Heckel, 1840) (“cara bonita” or “green-streaked eartheater”), a freshwater cichlid from the Peruvian Amazon. The new genus and species differ from other Neotropical dactylogyrids in having the hooks of each hook pair well-differentiated from the remaining pairs, shafts varying in robustness, weakly sclerotized expansions at the proximal end of shaft, and a dorsal anchor with grooved shaft, bifid point. This study represents the first record of a monogenoid from a species of Biotodoma Eigenmann &amp; Kennedy, 1903.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biotodoma; Cichlidae; Dactylogyridae; Monogenoidea; Taxonomy.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702019000100333

Estimativa do tamanho de duas espécies de ciclídeos (Osteichthyes, Perciformes) predados por Lontra longicaudis (Olfers) (Carnivora, Mustelidae), através de análise das escamas
Provedor de dados: 104
Autores: Kasper,Carlos Benhur; Salvi,Juliana; Grillo,Hamilton César Zanardi.
O presente estudo foi realizado no Vale do Taquari, região central do Estado do Rio Grande do Sul, sul do Brasil. Entre dezembro de 2001 e dezembro de 2002 foi realizado um estudo sobre a predação de Cichlidae por Lontra longicaudis (Olfers, 1818) através de análise das escamas encontradas nas fezes de lontra. Foi identificada a predação sobre Gimnogeophagus labiatus (Hensel, 1870) e Crenicichla punctata Hensel, 1870, e a ocorrência destas espécies de peixe na dieta é mais elevada do que sua disponibilidade relativa no ambiente. Foi encontrada uma correlação positiva entre o tamanho do peixe e das escamas, permitindo a construção de uma curva de regressão para estimar o tamanho dos peixes predados baseado no tamanho das escamas encontradas nas fezes de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cichlidae; Dieta; Estimativa do tamanho de presa; Lontra; Predação preferencial.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752004000300012

Comportamento reprodutivo do acará bandeira, Pterophyllum scalare Cuvier &amp;amp; Valenciennes (Osteichthyes, Cichlidae)
Provedor de dados: 104
Autores: Cacho,Maria do Socorro R.F; Yamamoto,Maria Emília; Chellappa,Sathyabama.
Acará bandeira, Pterophyllum scalare Cuvier &amp;amp; Valenciennes, 1831 is a Neotropical cichlid fish, which has not been studied under a scientific approach. The objective of this work was to identify and describe the reproductive behaviour involved in the various phases of its reproductive cycle, such as territorial disputes and its establishment, substrate selection for spawning, courtship and mating, selection of mate and parental care. Twenty males and ten females of the study species were observed in the laboratory, over a period of six consecutive months. Behaviour descriptions resulting from these observations were analysed and the results show that the reproductive males are very agressive in the initial phase of reproduction. Agressiveness is a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Osteichthyes; Cichlidae; Pterophyllum scalare.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000300006

Caracterización de tilapia roja (Oreochromis sp.) con marcadores moleculares RAPD
Provedor de dados: 109
Autores: Torres Jaramillo,Julieta; Muñoz,Jaime Eduardo; Cárdenas,Heiber; álvarez,Luz ángela; Palacio,Juan Diego.
Se utilizó la técnica RAPD (amplificación al azar de ADN polimórfico) para el estudio de la diversidad genética de Oreochromis sp. (tilapia roja) en cinco piscícolas del Valle del Cauca (Colombia) y en la determinación del nivel de introgresión de las especies parentales Oreochromis mosambicus, O. niloticus y O. aureus. Se evaluaron 25 cebadores, ocho fueron polimórficos y se obtuvieron 109 bandas. Los valores de heterocigosidad esperada (0.196 a 0.256) y la estructura genética (Gst = 0.22) para Oreochromis sp. indicaron un elevado grado de polimorfismo y alta estructuración genética. Estos resultados fueron consistente con el Fst = 0.268 (P &lt; 0.0001) dado por el Amova y el Gst = 0.040 del análisis de correspondencia múltiple. Los valores de similitud...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oreochromis; Mosambicus; O niloticus; O aureus; Cichlidae; DNA fingerprinting; RAPD; Variación genética; Diferenciación de especies.
Ano: 2010
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122010000200013

Biologia reprodutiva de Heros efasciatus Heckel, 1840 (Pisces, Cichlidae) na Reserva de Desenvolvimento Sustentável Amanã-AM, visando seu manejo sustentável
Provedor de dados: 36
Autores: 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

Parasitic diversity of a wild Satanoperca jurupari population, an ornamental cichlid in the Brazilian Amazon
Provedor de dados: 36
Autores: 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

Histology of the digestive tract of Satanoperca pappaterra (Osteichthyes, Cichlidae) - doi: 10.4025/actascibiolsci.v34i3.8956
Provedor de dados: 3
Autores: 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...
Palavras-chave: Freshwater fish; Cichlidae; Histological methods; Digestive tract.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/8956

Hematological parameters of Iranian cichlid Iranocichla hormuzensis: Coad, 1982 (Perciformes) in Mehran River
Provedor de dados: 42
Autores: 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

Diet of Crenicichla britskii (Perciformes: Cichlidae) in a stream of Rio Aguapeí basin, Upper Rio Paraná system, southeastern Brazil
Provedor de dados: 49
Autores: 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

The surprising "B-side": description of a new foraging tactic for the pearl cichlid, Geophagus brasiliensis, in a coastal stream of the Atlantic Forest
Provedor de dados: 49
Autores: Souza,Gabriel Raposo Silva de; Sabino,José; Garrone-Neto,Domingos.
Abstract: A new foraging tactic for the pearl cichlid, Geophagus brasiliensis, is described from underwater observations performed in a coastal stream of the Atlantic Forest, Southeastern Brazil. Named "shift picking", the foraging tactic involved the manoeuvering of leaves, wood twigs and tree bark present in the substrate, with fish using its mouth to turn objects and uncover macroinvertebrates adhered to the underside of the object being picked ("B-side"). The object-shifting behaviour is rarely reported for fish and the present description seems to be the first record for a freshwater species of South America.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Foraging behaviour; Fish ecology; Naturalistic studies; Cichlidae; Atlantic Forest.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000300503

Feeding and trophic ecomorphology of Satanoperca pappaterra (Pisces, Cichlidae) in the Manso Reservoir, Mato Grosso State, Brazil
Provedor de dados: 52
Autores: 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