000			01926nab a2200313 a 4500
003			AR-ReUNN
005			20260702003100.0
008			260630s2007 ag |||||||||||||||||spa
041	0		_aspa _aeng
100	1		_aPizzolon, Lino _9147666
700	1		_aQuirós, Rolando _9147667
245	1	0	_aProductividad primaria en un estanque de cría de peces (31° 12´ S; 57° 55´ W) / Lino Pizzolon, Rolando Quiros
264		1	_c2007
300			_a18 páginas
500			_aDisponible en estante de INICNE Primary productivity in a fish pond (31° 12´ S; 57° 55´ W)
520			_aGross and net primary productivity, respiration and related parameters were estimated in an experimental fish pond where silverside (Basilichthys bonariensis) were bred, using the oxygen light-dark bottle method. The results obtained showed a positive correlation (r = 0.83, p < 0.005) with temperature. The chlorophyll a concentration, the number of phytoplankton cells and the Secchi disk showed no correlation with primary productivity. The mean gross primary productivity on sunny days was 2022 g C m -2 day -1 in the deepest zone, with a 47% variation. For the whole pond the results was 538.7 kgC ha-1 year -1 considering a correction for statistical average of sunny days. The respiration/gross primary relation was 0.50 for the whole pond. With comparative purposes the primary productivity was estimated with the simplified method of daily curves and by the method of oxygen changes in open waters
650		4	_aPeces de Agua Dulce _96471
650		4	_aEstanques Piscicolas _963005
650		4	_aProductividad _99641
650		4	_aArgentina _94258
650		4	_aFreshwater Fish _9117439
650		4	_aInland Waters _9117440
650		4	_aBreeding _9147041
650		4	_aBiological Production _9147105
773	0		_tEcosur _x0325-108X _gv. 11 n. 21-22 (1984) _w234603
942			_cART
035			_a(INICN)39234
001			234804
999			_c234804 _d234804
040			_aAR-ReUNN _bspa _cAR-ReUNN _eaacr2