|
|
|
| Registros recuperados: 10 | |
|
|
| Guidetti, Paolo; Bussotti, Simona. |
| The fish fauna of a shallow meadow composed by the seagrasses Cymodocea nodosa and Zostera noltii was studied in the Gulf of Olbia (NE Sardinia, Italy; Western Mediterranean). Visual censuses were conducted monthly from August 1995 to August 1996. Environmental variables for water temperature, salinity and seagrass shoot density were collected on each sampling occasion. A total of 23 fish species from eight families were recorded. Planktivorous species (Atherinids) numerically dominated the fish community, followed by necto-benthic fish, chiefly Labrids and Sparids. There was no discernible trend in total fish density. Species richness, diversity, evenness and density of necto-benthic species, instead, displayed a distinct seasonal pattern, higher Values... |
| Tipo: Text |
Palavras-chave: Ichtyofaune; Phanérogames marines; Variations seasonnières; Mediterranée; Fish fauna; Seagrasses; Seasonal variations; Mediterranean. |
| Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/00323/43373/42838.pdf |
| |
|
|
| Pelicice,Fernando Mayer; Azevedo-Santos,Valter M.; Esguícero,André Luiz Henríques; Agostinho,Angelo Antonio; Arcifa,Marlene Sofia. |
| ABSTRACT The Paranapanema River is a major tributary of the upper Paraná river basin. Eleven hydropower dams regulate its main course, but no study has investigated fish diversity in these impoundments at the basin-scale. The present study investigated spatial patterns of richness, composition, and abundance of native (non-migratory and migratory) and non-native fishes in the cascade of reservoirs along the Paranapanema River. The study is based on data collected from 34 independent studies conducted in nine reservoirs (47 samples). The compilation recorded 161 species, being 111 native (14 migratory) and 50 non-native. Total richness ranged between 56 and 112 species/reservoir, with a mean of 72 (49.9 non-migratory, 8.1 migratory and 14 non-native). The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dam; Fish fauna; Longitudinal; Migratory fish; Non-native. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000200213 |
| |
|
|
| Silva,Jislaine Cristina da; Delariva,Rosilene Luciana; Bonato,Karine Orlandi. |
| This study addressed the feeding ecology of fish fauna from a first-order stream located in a rural area. The purposes were to evaluate the influence of interspecific, seasonal and spatial factors on the diet, examine the dietary overlap, and determine the predominant food sources. Sampling was conducted in December 2007, September 2008, and March 2009, in three 50-m stretches of Itiz stream (upstream, intermediate, and downstream), through electrofishing. A total of 1,102 stomach contents were analyzed from 14 species, by the volumetric method. In general, allochthonous resources were predominant in the diets. Astyanax aff. fasciatus, Astyanax aff. paranae, Astyanax bockmanni, and Bryconamericus aff. iheringi consumed a higher proportion of plant remains,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allochthonous resources; Diet; Fish fauna; Trophic segregation; Riparian vegetation. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000200014 |
| |
|
|
| Silva,Jislaine Cristina da; Gubiani,Éder André; Delariva,Rosilene Luciana. |
| Spatial and temporal variations in food supply play a crucial role in the determination of the patterns of food use by fish species. This study evaluated spatial and temporal variations in food utilization by small fish species of the Verde River, Upper Paraná River Basin, state of Mato Grosso do Sul, Brazil. Samplings were conducted in the rainy and dry periods, from November 2010 to August 2012, using trawls, cast nets and gillnets, in nine sampling sites grouped into three biotopes: upstream and downstream of the Branca Waterfall, and tributary. The stomach contents of 3,263 individuals of 12 small species were examined according to the volumetric method. Altogether, 31 food items were identified. Overall seed consumption was greater in the rainy... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allochthonous resources; Diet; Fish fauna; Seasonality; Upper Paraná River Basin. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000500004 |
| |
|
|
| Ávila,Milton P.; Carvalho,Rafaela Neves; Casatti,Lilian; Simião-Ferreira,Juliana; Morais,Lorrane Faria de; Teresa,Fabrício B.. |
| ABSTRACT The development of effective monitoring tools depends on finding sensitive metrics that are capable of detecting the most important environmental impacts at a given region. We assessed if metrics derived from stream fish assemblages reflect physical habitat degradation and changes in land cover. We sampled the ichthyofauna and environmental characteristics of 16 stream sites of first and second order in the Upper Tocantins River basin. The streams were classified according to their environmental characteristics into reference (n = 5), intermediate (n = 4), and impacted (n = 7). A total of 4,079 individuals in five orders, 12 families, and 30 species were collected. Of the 20 metrics tested, eight were non-collinear and were tested for their... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioindicators; Brazilian savannah; Fish fauna; Multimetric index. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702018000100303 |
| |
|
| |
|
|
| Nattanan Tiengtam; Watee puttakang; Poolsap Sirisant. |
| Survey of fish fauna in rice fields in Nakhon Phanom Province of Northeastern Thailand were studied during October 2008 - October 2009. From 909 collected specimens, totally, 7 orders, 17 families, 29 genera and 33species of fishes were recognized. The most dominant order is Cypriniformes (13 species, 39.39% of the total fauna) and the next is Perciformes (10 species, 30.30% of the total fauna) and then Siluriformes (4 species, 12.12%of the total fauna). The most dominant family is Cyprinidae (11 species, 33.33% of the total fauna) and the next is Osphronemidae (5 species, 15.15% of the total fauna) and then Clupeidae with Cobitidae were found equal (2 species, 6.06% of the total fauna). 10 species of air-breathing fishes (Lepidocephalichthys hasselti,... |
| Tipo: Collection |
Palavras-chave: Fish fauna; Rice fields; Nakhon Phanom province; พรรณปลา; นาข้าว; การจำแนกชนิด; จ.นครพนม. |
| Ano: 2011 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5210 |
| |
|
|
| Spach,Henry Louis; Santos,Cesar; Godefroid,Rodrigo Santiago. |
| The ichthyofauna of a tidal creek in Rasa da Cotinga Island, Paranaguá Bay, Paraná was studied through monthly collections in the quadrature high and low tides, with seine net of 30 m x 1.5 m and 10 mm mesh and "fyke" net of 30 m x 1.5 m with 10 mm mesh in the wings and 8 mm mesh in the bag. Together with the nekton sampling, temperature, salinity and water transparency values were also obtained as well as current speed. A total of 9068 fish belonging to 54 species and 23 families were collected. The ichthyofauna was dominated by Harengula clupeola (Cuvier, 1829), Atherinella brasiliensis (Quoy & Gaimard, 1825), Sphoeroides greeley (Gilbert, 1900) and Sphoeroides testudineus (Linnaeus, 1758), that contributed to 66.1% of the capture in number and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish fauna; Seasonal variation; Mangrove. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000400005 |
| |
|
|
| Pera, Carolina Costa; Universidade Estadual de Maringá; Zanatta, Naiara; Universidade Estadual de Maringá; Sacramento, Patricia Almeida; Universidade Estadual de Maringá; Cionek, Vivian de Melo; Universidade Estadual de Maringá; Benedito, Evanilde; Universidade Estadual de Maringá. |
| Conservation Units (CU) aim to contribute to the balance between human and environmental demand, by protecting natural resources and biological communities. In this study we examined the differences in the attributes of the fish community in four stretches of an urban stream, two inside and two outside the CU, without vegetation cover, and tested the hypothesis that the presence of riparian vegetation is positively reflected in the attributes of fish fauna. Five species were caught, distributed into four orders and five families. Attributes like richness, abundance, dominance, Shannon-Wiener diversity, and evenness were estimated and significant differences were detected for continuous stretches considering stream flow direction. The first stretches (URBI... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish fauna; Conservation units; Neotropical streams; Pollution; Urbanization Ecologia Aplicada. |
| Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/16592 |
| |
|
|
| Sánchez-Rodríguez,Diana C.; Acero P.,Arturo; Viloria-Maestre,Efraín; Villa-Navarro,Francisco A.; Saldaña,Patricia. |
| ABSTRACT Monthly samplings of fish catches obtained by traditional beach seine were carried out between 2006 and 2007, recording an important portion of the Caribbean ichthyofauna of the continental shelf:10 114 individuals belonging to 16 families and 31 species. The families Carangidae and Sciaenidae are mentioned among the most widely represented in the Caribbean, while the most abundant species was Oligoplites saurus. From the list of species, seven are included in the Red Book of Marine Fishes of Colombia; five between the categories Critically Endangered (CR) and Vulnerable (VU), and two in the category Near Threatened (NT). These results are a technical and scientific input for decision making, to fulfill the conservation and management mission... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Colombian Caribbean; Marine protected areas; Fish fauna; Artisanal fishing.. |
| Ano: 2020 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000300267 |
| |
| Registros recuperados: 10 | |
|
|
|
