Clint R. Peacock

Ageing Precision and Error Analysis of Whole-view and Sectioned Otoliths in Largemouth Bass and Spotted Bass

SEAFWA Journal Volume 1, March 2014

The objectives of this study were to quantify ageing precision for largemouth bass (Micropterus salmoides) and spotted bass (M. punctulatus), and to evaluate the effect of ageing errors on the estimation of common fisheries metrics. Sagittal otoliths were extracted from 2164 largemouth bass and 738 spotted bass collected from throughout the Arkansas River, Arkansas. Largemouth bass collections occurred during 2004, 2005, and 2010; spotted bass collections were limited to 2004 and 2005. Annuli were counted by two independent readers from digital images of each whole otolith. For individuals...


Spotted Bass Population Characteristics and Relationships with Macrohabitat Variables in the Arkansas River, Arkansas

Despite its importance to anglers, the Arkansas River spotted bass (Micropterus punctulatus) fishery has not been intensively studied or managed. Thus, spotted bass populations in the lower nine navigation pools of the Arkansas River were assessed during 2004-2005 using nighttime boatmounted electrofishing. Across years and pools, size structure measures were within acceptable ranges for black basses (mean PSDQ = 38, range 21-56; mean PSDP = 10, range 0-19). Theoretical maximum sizes generated from growth models were not large for spotted bass (mean L∞ = 395 mm TL, range 351-429 mm...


Exploring the Utility of Various Minimum-length Limits for the Largemouth Bass Fishery in the Arkansas River, Arkansas

Largemouth bass (Micropterus salmoides) on the Arkansas River have been regulated by a 381-mm minimum-length limit (MLL) regulation since 1 January 1998; however, little evaluation of this regulation has been conducted. During 2004-2005 and 2010, largemouth bass populations were sampled from throughout all navigation pools in the Arkansas River. All bass were aged using sagittal otoliths, and population metrics were calculated to conduct simulation modeling using the Fisheries Analyses and Simulation Tools (FAST) software. Composite model parameters were developed using data from all 3...