Consulta: creatorFacets:"Kashiwaqui,Elaine Antoniassi Luiz"
Registros recuperados: 6
Data/hora: 08/06/2024 17:17:23

Longitudinal habitat disruption in Neotropical streams: fish assemblages under the influence of culverts
Provedor de dados: 83
Autores: Mariano,José Roberto; Makrakis,Maristela Cavicchioli; Kashiwaqui,Elaine Antoniassi Luiz; Celestino,Elaine Fernandes; Makrakis,Sergio.
This study assessed differences in fish assemblages existing upstream and downstream two types of culverts, one on each of two different Neotropical streams. We analyzed the composition and structure of the ichthyofauna and tested for spatial patterns. Fish sampling was carried out monthly between November 2009 and October 2010 using different fishing gears. We collected 2,220 fish of 33 species; 901 in stretches of the Lopeí stream - circular culvert and 1,310 in stretches of the Pindorama stream - box culvert. Fish abundance was similar in upstream and downstream stretches of the circular culvert, whereas it was slightly higher in the upstream than downstream stretch for the box culvert. Characiformes predominated in the upstream stretch of both...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish passage; Fish population; Habitat fragmentation; Road crossings.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000400010

Diet and trophic structure of the fish fauna in a subtropical ecosystem: impoundment effects
Provedor de dados: 83
Autores: Delariva,Rosilene Luciana; Hahn,Norma Segatti; Kashiwaqui,Elaine Antoniassi Luiz.
This study examined the diet and trophic structure of the fish fauna, over temporal and spatial scales, as affected by the impoundment of the Iguaçu River in the region of Salto Caxias, Paraná State, Brazil. Sampling was conducted before (March 1997 - February 1998) and after the impoundment (March 1999 - February 2000), at four sampling sites. The stomach contents were analyzed by the volumetric method. The species could be organized in 10 trophic guilds: algivores, carcinophages, detritivores, herbivores, aquatic insectivores, terrestrial insectivores, invertivores, omnivores, piscivores, and planktivores; the first and last guilds were represented only in the post-impoundment period. Similarity patterns and feeding changes were summarized by a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feeding; Guilds; Iguaçu River; Reservoir; Temporal changes.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000400891

The use of morphometric analysis to predict the swimming efficiency of two Neotropical long-distance migratory species in fish passage
Provedor de dados: 83
Autores: Assumpção,Lucileine de; Makrakis,Maristela Cavicchioli; Makrakis,Sergio; Wagner,Ricardo Luiz; Silva,Patrícia Sarai da; Lima,Ariane Furtado de; Kashiwaqui,Elaine Antoniassi Luiz.
This study investigated the external body morphology (based on morphometric data) and the swimming efficiency in fish passages (based on the ascent time in a fish ladder) of two Neotropical long-distance migratory species. The fish were collected in the fish ladder of the Porto Primavera Hydroelectric Power Plant (known as Engenheiro Sergio Motta), upper Paraná River, Brazil. The species differ in several morphometric ratios related to swimming performance. Prochilodus lineatus exhibited a higher muscle ratio and caudal fin length ratio. However, Leporinus elongatus showed higher values for the fineness ratio, a higher length from snout to pectoral fin base ratio, and a higher caudal peduncle depth factor. Although both species show good swimming...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fineness ratio; Fish swimming; Fishway; Morphology; Swimming performance.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000400012

Astyanax paranae Eigenmann, 1914 (Characiformes: Characidae) in the Alagados Reservoir, Paraná, Brazil: diet composition and variation
Provedor de dados: 83
Autores: Abelha,Milza Celi Fedatto; Goulart,Erivelto; Kashiwaqui,Elaine Antoniassi Luiz; Silva,Marlene Rodrigues da.
Aspects of the feeding ecology of a small characin, Astyanax paranae, were studied during 1996/1997 and 1998/1999 in the Alagados Reservoir, Paraná, Brazil (25º01'50.0'' S; 050º03'41.9'' W). Fishes were quarterly captured from the reservoir's riverine and lacustrine zones and stomachs contents of 711 adult individuals were analyzed by volumetric method. Species' feeding spectrum and spatial, temporal and sexual variations on diet were evaluated. Data matrix was summarized by detrented correspondence analysis (DCA) and the axes scores from DCA were used as variables in one-way ANOVA of null models to test diet variations. Astyanax paranae fed on detritus/sediment, plant matter, algae and aquatic and terrestrial invertebrates. The time-space prevalence of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Feeding; Dam; Detritivory; Freshwater.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000300006

Relative abundance and reproductive tactics of a Loricariidae species at Saraiva Lagoon, Ilha Grande National Park, MS-PR, Brazil
Provedor de dados: 49
Autores: Bailly,Dayani; Batista-Silva,Valéria Flávia; Abelha,Milza Celi Fedatto; Kashiwaqui,Elaine Antoniassi Luiz; Fernandes,Carlos Alexandre; Carvalho,Edson Dias de.
This study aimed to evaluate population abundance patterns and the main events in the reproductive cycle of Loricariichthys platymetopon at Saraiva Lagoon, Ilha Grande National Park, MS-PR, Brazil. Monthly samplings were conducted from October 2004 to September 2005 in three sections of the lagoon: entrance, middle and end, which resulted in the capture of 175 individuals. Spatial and temporal variation in abundance was obtained through CPUE (number of captured individuals/1000 m² of gillnets in 12 hours). The reproductive tactics considered were: duration, time and location of spawning, oocyte diameter and fecundity. The highest relative abundance was recorded in February, in the middle section of the lagoon, and the reproductive period lasted from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Distribution; Oocyte diameter; Fecundity; Reproductive period.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032011000300014

Population structure, condition and diet of Oligosarcus paranensis (Menezes &amp;amp; Gery, 1983) (Osteichthyes: Characidae) at two reservoirs in South Brazil
Provedor de dados: 49
Autores: Abelha,Milza Celi Fedatto; Kashiwaqui,Elaine Antoniassi Luiz; Goulart,Erivelto.
This study investigated the population parameters, condition and diet of Oligosarcus paranensis at Fiú and Mourão Reservoirs, located in Paraná State, Brazil. The fishes were collected quarterly between 1996/1997 and 1998/1999 using gillnets. Food items were quantified by volumetric method. The specimens at Fiú showed comparatively smaller length and worse condition. Sex ratio was statistically equal to 1:1 at Mourão, whereas there was a significant predominance of males at Fiú. Sex ratio also varied among size classes. Allometric growth prevailed among the studied groups. The diet consisted mainly of fishes and was complemented with invertebrates and plant matter in both reservoirs. There was a change in the feeding pattern as the standard length...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Sex ratio; Feeding; Dog-tooth characid; Impoundments.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000100015