| 000 | 02625nab a2200385 a 4500 | ||
|---|---|---|---|
| 003 | AR-ReUNN | ||
| 005 | 20260702003055.0 | ||
| 008 | 260630s2006 ag |||||||||||||||||spa | ||
| 041 | 0 |
_aspa _aeng |
|
| 100 | 1 |
_aBonetto, Argentino a. _977121 |
|
| 700 | 1 |
_aCorrales de Jacobo, Marta a. _9147371 |
|
| 700 | 1 |
_aVarela, Maria Elvira _9144700 |
|
| 700 | 1 |
_aVallejos, Ramón e. _9142466 |
|
| 700 | 1 |
_aZalocar de Domitrovic, Yolanda _9127168 |
|
| 245 | 1 | 0 | _aEstudios limnológicos en la Cuenca del Riachuelo 2 : Lagunas Totoras y González / Argentino A. Bonetto ...[et al.]. |
| 264 | 1 | _c2006 | |
| 300 | _a39 páginas | ||
| 500 | _aDuplicado disponible en caja 16 no 19 de INICNE | ||
| 520 | _aThis paper deals with the principal limnological features of the Totora and González ponds, selected among those belonging to the Riachuelo River basin for their ineresting and contrasting general characteristcs. The study has been carried out along an annual cycle by means of monthly sampling operations, considering the main physical and chemical properties, the phytoplankton, zooplankton, benthos, fish populations, as well as the primary production and related parameters. According to the obtained data, such water bodies present extreme trophic conditions. The Totoras pond is of moderate eutrophy, with high biotic diversity, clear water, great part of the bottom colonized by submerged macrophytes and psammitic algae with a thick cover of organic detritus in the central area although the dissolved oxigen was never less than 50% saturation. The profile of primary production shows good development in depth, having the maximun rate of carbon fixation at 1 or 2 meters and phtosynthetic inhibition in a superficial layer. The Gonzalez pond, by the contrary, is largely euthrophic, with very turbid waters, bottom without macrophytes, low biotic diversity, and a practically constant bloom of blue green algae. The dissolved oxigen was reduced to the bottom but without exhaustation because of the wind action. The primary production of phytoplankton was very high but restricted to the upper layer | ||
| 650 | 4 |
_aIctiología _99239 |
|
| 650 | 4 |
_aIchthyology _9119207 |
|
| 650 | 4 |
_aLimnología _961825 |
|
| 650 | 4 |
_aLimnology _9147026 |
|
| 650 | 4 |
_aLaguna Totora _9147464 |
|
| 650 | 4 |
_aIctiofauna _913357 |
|
| 650 | 4 |
_aPeces de Agua Dulce _96471 |
|
| 650 | 4 |
_aFreshwater Fish _9117439 |
|
| 650 | 4 |
_aInland Waters _9117440 |
|
| 650 | 4 |
_aCorrientes _94086 |
|
| 650 | 4 |
_aArgentina _94258 |
|
| 773 | 0 |
_tEcosur _x0325-108X _gv. 5 n. 9 (1978) _w234603 |
|
| 942 | _cART | ||
| 035 | _a(INICN)34750 | ||
| 001 | 234644 | ||
| 999 |
_c234644 _d234644 |
||
| 040 |
_aAR-ReUNN _bspa _cAR-ReUNN _eaacr2 |
||