636 



Fishery Bulletin 100(3) 



MattaponJ4997; Striped Bass Eggs 



30-Apr 

 , 16- Apr 

 03- Apr 

 29-Mar 



MattaponI 1 999: Striped Bass Eggs 



102 98^ 



11 -Apr 



PamunkeyJ997: Striped Bass Eggs 



76^'27-Mar 

 72 



Pamunkey 1998: Striped Bass Eggs 



-May 

 May 



Pamunkey 1999: Striped Bass Eggs 



Way 



113 



104 



Stations (km) 



Figure 3 



Striped bass egg density and distributions for 1997-99 bongo and pushnet collections. Stations 

 are denoted as their distance (in kilometers) from the mouth of the York River. In 1998, no 

 striped bass eggs were collected on the Mattaponi River 



was higher on the Mattaponi River ( 1997-99; Mattaponi 

 JAI, 1648.5; Pamunkey JAI, 112.7), and mean recruit- 

 ment of striped bass was higher on the Pamunkey River 

 (1997-99; Mattaponi JAI, 1.6; Pamunkey JAI, 4,9). The 

 approximate volume of the Pamunkey River, from the fall 

 line to river mouth (1.9 x 10^ m^) is 1.2 times that of the 

 Mattaponi River (1.6 x 10** m^). Thus, equal populations of 



eggs or larvae that are homogeneously distributed on each 

 tributary would be expected to be at the most 1.2 times 

 as concentrated on the Mattaponi River. Because we ob- 

 served differences in egg density that were much greater 

 than double (-17 times in the case of striped bass) and 

 in the unexpected direction (Pamunkey River egg densi- 

 ties > Mattaponi River egg densities), it is unlikely that 



