| 000 | 02442nab a2200373 a 4500 | ||
|---|---|---|---|
| 003 | AR-ReUNN | ||
| 005 | 20260702003049.0 | ||
| 008 | 260630s2006 ag |||||||||||||||||spa | ||
| 041 | 0 |
_aspa _aeng |
|
| 100 | 1 |
_aBonetto, Carlos Alberto _9147102 |
|
| 245 | 1 | 0 | _aDensidad de población, crecimiento y producción del sábalo - Prochilodus platensis - en la laguna González - Corrientes, República Argentina - / Carlos Alberto Bonetto |
| 264 | 1 | _c2006 | |
| 300 | _a16 páginas | ||
| 500 | _aDisponible en caja 16 no4 de INICNE Duplicado disponible en caja 13 no2 de INICNE Populations density, growth and production of the 'sábalo' (Prochilodus platensis) in the González pond (Corrientes, Argentina) | ||
| 520 | _aThis paper deals with the assessment of the population density, growth and production of the 'sábalo' (Prochilodus platensis) in the González pond, a small, shallow and markedly eutrophic water body. The 'sábalo' population (a typical migratory species) has been confined in this pond since the great flood of 1971/1972, during which the waters of the Riachuelo River invaded the pond. The population density has been assessed by means of mark-recapture methods, following JOLLY`s (1965) model, in about 6.000 fishes in 1976. The fishes grew fast during their first two years in the pond, but they never exceeded a mean length of 36 cm, while in other larger ponds in the same basin or in the Riachuelo River itself, 'sábalos' of more than 60 cm are not uncommon. According to such growth patterns, the yield was high, about 250 kg/ha/year in 1972/73, decreasing sharply during the following years. The harvestable fish production represents only 0,2 - 0,3 % of the primary production, perhaps because of the specialized feeding habits of this mud-eater species. | ||
| 650 | 4 |
_aPeces de Agua Dulce _96471 |
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| 650 | 4 |
_aDensidad _963997 |
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| 650 | 4 |
_aCrecimiento _910886 |
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| 650 | 4 |
_aProducción Biologica _9117359 |
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| 650 | 4 |
_aProchilodus Platensis _9137130 |
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| 650 | 4 |
_aSabalo _913182 |
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| 650 | 4 |
_aLaguna Gonzalez _9147103 |
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| 650 | 4 |
_aCorrientes _94086 |
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| 650 | 4 |
_aArgentina _94258 |
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| 650 | 4 |
_aFreshwater Fish _9117439 |
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| 650 | 4 |
_aInland Waters _9117440 |
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| 650 | 4 |
_aDensity _9147104 |
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| 650 | 4 |
_aGrowth _9147067 |
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| 650 | 4 |
_aBiological Production _9147105 |
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| 773 | 0 |
_tHistoria Natural _gv. 1 n. 18 (1980) _w234430 |
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| 942 | _cART | ||
| 035 | _a(INICN)32479 | ||
| 001 | 234437 | ||
| 999 |
_c234437 _d234437 |
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| 040 |
_aAR-ReUNN _bspa _cAR-ReUNN _eaacr2 |
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