The Productivity of Fish Food in Oneida Lake y^) 



most numerous. In Table No. ii, each dredging is indicated, 

 the area covered being 76S square inches (see page 23). On 

 the map, fig. i, each dredging is shown in its relation to the 

 adjoining land areas. 



3. South Sj[orf, of Lake East of Norcross Point 



This territory may be divided into two areas, that bordering 

 the shore and that of the deep water between Norcross Point 

 and Dunham Island. 



1. Norcross Point Shore. The shore of Oneida Lake east 

 of Norcross Point (figs. 16, 17) is very bouldery and the 

 water rather rapidly deepens to the 6-foot contour and still 

 more rapidly to the 12- foot contour. The boulders are mostly 

 of large size indicating the rough character of the water during 

 storms from the north and east. Vegetation is not abundant, 

 except in more or less isolated spots near the shore where 

 the Water Willow {Dianthera) and Bulrush {Scirpxis) grow 

 in great profusion (fig. 17). The boulders are more or less 

 covered with filamentous algae which afford good feeding 

 ground for mollusks and other aquatic animals (Table No. 12). 



2. Deep Water Area between Norcross Point and Dun- 

 ham Island. North of the Norcross Point shore the water 

 deepens rapidly to 16 feet and then gradually to 18 and 19 

 feet (see cross section, fig. 4, L). The bottom material is 

 of black, soft mud throughout the greater part of this area. 

 In one spot, however, at depths of 14 and 15 feet (see map, 

 fig. i) there is a streak of gravel with some sand which 

 extends in an east and west direction for several hundred feet. 

 There is more or less algae on the bottom in all depths of 

 water. Vegetation is absent from the greater depths, appa- 

 rently, occurring in but one dredging at 10 feet. The unit 

 areas are the same as those given above under deep water 

 habitats of Lower South Bay. (See Table No. 13.) 



