Daniel canfield jr (1 risultati)

Soft cover. Condizione: Very Good to Near Fine. 178 page handbook of common freshwater fisheries data collected from 60 north central Florida lakes. The 60 study lakes encompassed a wide range of pH with lake averages ranging from 4.3 to 9.7. This is one of three major environmental variables that have been shown to be related to fish populations in Florida, as well as other parts of the country. The other two major environmental variables are lake trophic status and abundance of aquatic macrophytes. A in depth and detailed study. Available for immediate shipment, carefully packed in a sturdy box.…