Spatio-temporal variation in surf zone fish communities at Ilha do Cardoso State Park, São Paulo, Brazil
Variación espacio temporal de la ictiofauna del Parque Estatal Ilha do Cardoso, São Paulo, Brasil
| dc.contributor | en-US | |
| dc.contributor | es-ES | |
| dc.creator | Menegassi del Favero, Jana | |
| dc.creator | Ferraz Dias, June | |
| dc.date | 2017-05-02 | |
| dc.date.accessioned | 2020-11-05T13:35:51Z | |
| dc.date.available | 2020-11-05T13:35:51Z | |
| dc.identifier | http://lajar.ucv.cl/index.php/rlajar/article/view/vol41-issue2-fulltext-4 | |
| dc.identifier | 10.3856/vol41-issue2-fulltext-4 | |
| dc.identifier.uri | https://revistaschilenas.uchile.cl/handle/2250/158800 | |
| dc.description | In order to analyze the time-space variation of the fish fauna in the surf zone fish communities at Ilha do Cardoso State Park, São Paulo, Brazil, four consecutive hauls were done over a year on three beaches with different degrees of exposure, at low and high tide. To evaluate the influence of each abiotic variable over the fish community, a Canonical Correspondence Analysis was conducted. We identified 7,286 individuals belonging to 20 families and 47 species, most specimens collected were juveniles. At low tide, the highest diversity and richness values were calculated while the highest dominance was obtained at high tide. As for the number of species collected at the three beaches, stood out for the lower values the cooler months, between June and September. Abiotic variables explained 41.3% of the variability of biological data, where 11.4% corresponds to the spatial variation. Meanwhile the temporal variables accounted for 31.9% of the variation in abundance, where 26.3% of the variance explained nycthemeral variation. Additionally two groups were clearly observed between months with low and high temperature. However in this variable, the tidal variation, excluding the seasonal effect, explained 6.2%, while seasonality, excluding tide effect, explained 26.3%. Although the main measurable seasonal changes were related to temperature, water temperature showed a low percentage of explanation in the fish fauna variability (2.7%). Finally, it is emphasized that the seasonal changes in surf zone fish community primarily reflect patterns of recruitment determined by the reproductive activity and coastal circulation. | en-US |
| dc.description | Para analizar la variación espacio-temporal de la ictiofauna en las playas del Parque Estatal Ilha do Cardoso São Paulo-Brasil; se realizaron, durante un año, cuatro muestreos en tres playas con diferentes grados de exposición. Para evaluar la influencia de cada variable abiótica sobre la comunidad íctica, se efectuó un Análisis de Correspondencia Canonica. Se identificaron 7.286 individuos pertenecientes a 20 familias y 47 especies, la mayoría de especímenes colectados fueron juveniles. Durante la marea baja se encontraron los mayores valores de diversidad y riqueza, y durante la marea alta los valores altos fueron los de dominancia. En cuanto al número de especies colectadas en las tres playas, se destacaron por presentar los menores valores los meses más fríos, entre junio y septiembre. Las variables abióticas evaluadas explicaron el 41,3% de la variabilidad de los datos biológicos, donde el 11,4% correspondió a la variación espacial. Por su parte las variables temporales explicaron 31,9% de la variación de la abundancia, donde 26,3% explicó la variación nictimeral. Adicionalmente, se observaron claramente dos grupos entre los meses con temperatura baja y alta. Sin embargo, la temperatura, a pesar de ser significativa, registró un bajo porcentaje de influencia en la variación de la ictiofauna (2,7%). Finalmente, cabe resaltar que los cambios estacionales en la comunidad depeces fueron causados principalmente por los patrones de reclutamiento determinados por las actividades reproductivas y de circulación costera. | es-ES |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.publisher | Pontificia Universidad Católica de Valparaíso | en-US |
| dc.relation | http://lajar.ucv.cl/index.php/rlajar/article/view/vol41-issue2-fulltext-4/684 | |
| dc.source | Latin American Journal of Aquatic Research; Vol 41, No 2 (2013): Proceedings of the 3rd Brazilian Congress of Marine Biology; 239-253 | en-US |
| dc.source | Plataforma para envío de artículos - Latin American Journal of Aquatic Research; Vol 41, No 2 (2013): Proceedings of the 3rd Brazilian Congress of Marine Biology; 239-253 | es-ES |
| dc.source | 0718-560X | |
| dc.source | 0718-560X | |
| dc.subject | ichthyofauna; surf zone; seasonality; environmental variability; southeastern Brazil | en-US |
| dc.subject | ictiofauna, zona de surf; estacionalidad; variabilidad ambiental; sudeste de Brasil. | es-ES |
| dc.title | Spatio-temporal variation in surf zone fish communities at Ilha do Cardoso State Park, São Paulo, Brazil | en-US |
| dc.title | Variación espacio temporal de la ictiofauna del Parque Estatal Ilha do Cardoso, São Paulo, Brasil | es-ES |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/publishedVersion | |
| dc.type | en-US | |
| dc.type | es-ES |