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GUÍA DE EXPERIMENTOS PRÁCTICOS PARA ECOHIDROLOGÍA<br />

Figura 5. A Síntesis - la influencia <strong>de</strong> inundaciones ribereñas en peces, zooplancton, y en la calidad <strong>de</strong>l<br />

agua (datos <strong>de</strong> Zalewski et al. 1990a, 1990b).<br />

FIGURE 1 TRASLATION:<br />

WATER LEVEL LOW AND UNSTABLE WATER LEVEL HIGH AND STABLE<br />

terrestrial vegetation dry<br />

terrestrial vegetation floo<strong>de</strong>d<br />

HIGH FISH REPRODUCTIVE SUCCESS VERY HIGH<br />

- fry <strong>de</strong>nsity<br />

LOW<br />

INTER- AND INTRASPECIFIC<br />

COMPETITION<br />

- reduction of large zooplankters<br />

VERY HIGH<br />

HIGH<br />

HIGH<br />

HIGH<br />

GOOD<br />

HIGH<br />

GROWTH RATE OF FRY<br />

WINTER SURVIVAL OF FRY<br />

RECRUITMENT OF PREDATORS<br />

long-term feedback control<br />

mechanism of ecosystem<br />

FINAL EFFECT<br />

WATER QUALITY<br />

FISH YIELD<br />

-Perch fry <strong>de</strong>nsity in litoral: Densidad <strong>de</strong> las crías <strong>de</strong> Perca en el litoral<br />

-Area stability In<strong>de</strong>x: Índice <strong>de</strong> estabilidad <strong>de</strong> la zona<br />

-Months: Meses (MAMJJASOND)<br />

-Perch Growth Rate: Proporción <strong>de</strong> Crecimiento <strong>de</strong> las Percas<br />

-Pikeperch Lenght: Longitud <strong>de</strong> las luciopercas<br />

-Distance from <strong>de</strong> dam: Distancia <strong>de</strong>s<strong>de</strong> el embalse<br />

-Piscivorous / non-piscivorous: Piscívoros / no piscívoros<br />

-Depen<strong>de</strong>nce on perch reproductive success....<br />

VERY LOW<br />

VERY LOW<br />

VERY LOW<br />

POOR<br />

LOW<br />

Depen<strong>de</strong>ncia <strong>de</strong>l éxito reproductivo <strong>de</strong> las percas (<strong>de</strong>nsidad <strong>de</strong> las crías en la zona litoral a<br />

mediados <strong>de</strong> Julio) en la estabilidad <strong>de</strong>l nivel <strong>de</strong>l agua<br />

81

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