recruitment variability

Relationships between Hydrology and Largemouth Bass Growth in the Ouachita River, Arkansas

SEAFWA Journal Volume 3, March 2016

We explored whether increased river flows negatively affected growth of largemouth bass (Micropterus salmoides) in the lower Ouachita River, Arkansas. To test this hypothesis, largemouth bass (n = 460) were collected during 2008-2010 from the Felsenthal Reservoir region of the river. Largemouth bass were aged and annual growth increments were calculated using standard back-calculation techniques. Growth of largemouth bass was relatively rapid in the Ouachita River, with von Bertalanffy growth model parameters determined as L = 513 mm, K = 0.324, and tο = -0.314;...


Population Dynamics of White Crappie Occurring in a Small Georgia Impoundment Stocked with Female-only Largemouth Bass

SEAFWA Journal Volume 2, March 2015

Crappies (Pomoxis spp.) are popular sportfish, but can be difficult to manage due to erratic recruitment and variable growth. In this study, we document the population dynamics of a white crappie (P. annularis) population in a small impoundment characterized by low predator density and abundant populations of several forage species. White crappies (n=301) were collected by electrofishing in October 2012. Relative abundance as indexed by electrofishing catch per unit effort of crappie was high (103.3 fish h-1 ± 18.7 SD). A sub-sample was aged (n = 153) and growth was described...