Portal de Periódicos da CAPES

Length structure and reproductive potential of crusian carp (Carassius carassius (L.)) populations in some small forest ponds

1988; Finnish Zoological and Botanical Publishing Board; Volume: 25; Issue: 3 Linguagem: Inglês

1797-2450

Jorma Piironen, Ismo J. Holopainen,

Marine and fisheries research

Trap catches from 12 forest ponds showed that in monospecific fish communities, populations of crucian carp attained high densities but were dominated by small ( 15 cm) but at much lower densities. The removal of all fish from a 1.5 ha monospecific pond, and its restocking and subsequent monitoring over a two-year period revealed that crucian carp could rapidly repopulate the empty pond, increasing in population size from the 280 restocked fish to 16 600 in the first summer and to 25 500 in the next After two years, the size structure of the introduced population closely resembled that of the original population.