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Fish larvae assemblages in two floodplain lakes with different degrees of connection to the Paraná River, Brazil
| Content Provider | Scilit |
|---|---|
| Author | Daga, Vanessa Salete Gogola, Tatiane Mary Sanches, Paulo Vanderlei Baumgartner, Gilmar Baumgartner, Dirceu Piana, Pitágoras Augusto Gubiani, Éder André Delariva, Rosilene Luciana |
| Copyright Year | 2009 |
| Description | The objective of this study was to assess the abundance, attributes of assemblages, and spatial and temporal distributions of fish larvae and their relationships with some abiotic variables in two floodplain lakes with different degrees of connection to the Paraná River in Ilha Grande National Park, PR, Brazil. Four sampling sites were chosen, two in each floodplain lake. Night samples were taken with plankton nets during three spawning seasons (monthly, from October to March) from 2001 to 2005. The highest diversity and abundance were recorded at Saraiva Lake, with 25 taxa being identified. In Xambrê Lake, only sedentary species were captured, and the most abundant species were Plagioscion squamosissimus and Hypophthalmus edentatus. The greatest abundance of larvae was found in the second spawning season. In the Saraiva Lake, the most abundant species were Moenkhausia aff. intermedia, Hyphessobrycon sp., and Bryconamericus stramineus, but larvae of known migratory species were also documented. In this lake, the greatest abundance of larvae was found in the third spawning. Larvae abundance was influenced by water temperature and conductivity. The high diversity and abundance recorded in Saraiva Lake may be a result of its connectivity with the Paraná River, and the low diversity and abundance observed at Xambrê Lake are likely due to its isolation from the river. This work shows the importance of these lagoons for fish development, for both sedentary and migratory species. Both lagoons may be considered to have extreme ecological importance and they are also extremely susceptible to impacts, so any careless disturbance may cause irreversible damage. |
| Related Links | http://www.scielo.br/pdf/ni/v7n3/a10v7n3.pdf http://www.scielo.br/scielo.php?script=sci_pdf&pid=S1679-62252009000300010&lng=en&nrm=iso&tlng=en |
| Ending Page | 438 |
| Page Count | 10 |
| Starting Page | 429 |
| ISSN | 16796225 |
| e-ISSN | 19820224 |
| DOI | 10.1590/s1679-62252009000300010 |
| Journal | Neotropical Ichthyology |
| Issue Number | 3 |
| Volume Number | 7 |
| Language | English |
| Publisher | FapUNIFESP (SciELO) |
| Publisher Date | 2009-09-01 |
| Access Restriction | Open |
| Subject Keyword | Neotropical Ichthyology Biodiversity Conservation Fish Reproduction Parque Nacional De Ilha Grande Upper Paraná River |
| Content Type | Text |
| Resource Type | Article |
| Subject | Aquatic Science Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
