Biology and Management of Inland Striped Bass and Hybrid Striped Bass

2013 ◽  
Keyword(s):  
Population Dynamics ◽  
Striped Bass ◽  
Flood Control ◽  
Management Strategies ◽  
Early Summer ◽  
Hybrid Striped Bass ◽  
White Bass ◽  
Seasonal Movements ◽  
Class Strength ◽  
Optimal Habitat

<em>Abstract</em>.—Striped bass <em>Morone saxatilis </em>movements and population dynamics have been well studied in midwestern impoundments; however, a paucity of information exists on hybrid striped bass in these systems. We studied palmetto bass (male white bass <em>M. chrysops </em>× female striped bass) population dynamics and seasonal movements from 2005 to 2007 at Monroe Lake, a 4,350-ha flood control impoundment in south-central Indiana. Palmetto bass were collected, measured, and aged using otoliths to assess growth and mortality. Thirty fish were tagged with radio tags in April 2006 to determine seasonal movements and distributions for 1 year. Oxygen and temperature profiles were measured throughout the year to determine available habitat. Total annual mortality was 32% (±5%). Catch-curve residuals were modeled against the number of fish stocked to investigate recruitment variability. More than 95% of the variation in year-class strength was explained by the number of age-0 fish (25–50 mm total length) stocked in early summer. We determined that optimal stocking rates were between 12 and 23 fish/ha. Fish moved more during spring (501 m/d) than other seasons (109–220 m/d). Fish were concentrated in the lower basin of the lake during summer and in the upper basin during winter. Based on minimum habitat suitability index values for temperature and dissolved oxygen, there was no optimal habitat available in winter or spring. The volume of optimal habitat increased to 22% of the lake during summer and 47% in fall. Based on our evaluation of population dynamics, seasonal movements, available habitat, and stocking efficiency, current management strategies of hybrid striped bass in Monroe Lake are adequate to sustain a healthy fishery at similar levels of mortality.

scholarly journals Population Characteristics of Co-Managed White Bass and Hybrid Striped Bass in Lake McConaughy, Nebraska

2019 ◽  
Keyword(s):  
Population Dynamics ◽  
Striped Bass ◽  
Growth Patterns ◽  
Population Characteristics ◽  
Hybrid Striped Bass ◽  
White Bass ◽  
Morone Chrysops ◽  
Class Strength ◽  
Variability Index ◽  
Variable Recruitment

White Bass (Morone chrysops) and Hybrid Striped Bass (M. saxatillis × M. chrysops) populations often coexist in the same waterbody and are known to achieve different lengths, have differing reproductive success, and provide different opportunities for anglers. However, comparative population dynamics from systems where Moronids are managed with the same regulation is often lacking. This study aimed to assess the recruitment, mortality, and growth of these species from seasonal samples collected at Lake McConaughy in 2015 and fall 2016. White Bass demonstrated highly variable recruitment in Lake McConaughy despite stocking efforts (mean recruitment variability index = 0.157). Hybrid Striped Bass year class strength was also variable, but RVI was not calculated as the number of missing year classes exceed the number of present year classes. Total annual mortality estimates for Hybrid Striped Bass (39.7%) and White Bass (41.4%) were consistent with values reported in other populations, but both species were observed to achieve uncommon longevity. Both species exhibited sexual size dimorphism, and growth was moderate and consistent with average values presented for North American populations. This study provides insight into the population dynamics of two species with trophy potential managed by the same regulation in Lake McConaughy. Differences in growth patterns indicate the current regulation affects each species differently, and managers may be able to utilize this to inform decisions about management of coexisting Moronid populations.

Diel Activity and Seasonal Movements of Striped Bass X White Bass Hybrids in Marion Reservoir, Kansas

1991 ◽  
Vol 6 (3) ◽  
pp. 305-313 ◽  
Author(s):  
Carl W. Prophet ◽  
Thomas B. Brungardt ◽  
N. Kay Prophet
Keyword(s):  
Striped Bass ◽  
Diel Activity ◽  
White Bass ◽  
Seasonal Movements

Biology and Management of Inland Striped Bass and Hybrid Striped Bass

2013 ◽  
Keyword(s):  
Dissolved Oxygen ◽  
Striped Bass ◽  
Warm Season ◽  
Apparent Temperature ◽  
Fish Mortality ◽  
Temperature Sensitive ◽  
Hybrid Striped Bass ◽  
White Bass ◽  
Total Length ◽  
Length Range

<em>Abstract</em>.—We compared the habitat selection (temperature and dissolved oxygen) of striped bass (STB) <em>Morone saxatilis</em> and hybrid striped bass (HSB; palmetto bass [male white bass <em>M. chrysops</em> × female striped bass]) in Claytor Lake, Virginia. Striped bass (<em>n </em>= 28) and HSB (<em>n </em>= 33) were implanted with temperature-sensitive radio tags and tracked biweekly for a period of 19 months to record position and habitat use. Striped bass averaged 715 mm total length (range 533–940) whereas HSB averaged 547 mm total length (range 460–659). Habitat separation was most apparent in the warm season months of June through August. During this period, when deoxygenation of the metalimnion and hypolimnion was not limiting, STB and HSB segregated according to apparent temperature preferences, with HSB selecting warmer temperatures. As deoxygenation progressed, HSB and especially STB were forced into warmer strata than preferred. Results from this study suggest that if favorable dissolved oxygen levels are maintained, STB and HSB will vertically segregate during summer stratification. Temperature selection and qualitative observations of fish mortality in summer indicated that adult HSB would be less vulnerable than adult STB to a temperature–dissolved oxygen squeeze in summer and its detrimental effects.

Biology and Management of Inland Striped Bass and Hybrid Striped Bass

2013 ◽  
Keyword(s):  
Striped Bass ◽  
The United States ◽  
Minimum Length ◽  
State Agencies ◽  
Hybrid Striped Bass ◽  
White Bass ◽  
Regulatory Strategies ◽  
Intensively Managed ◽  
Catch Rates ◽  
Sport Fish

<em>Abstract</em>.—Inland populations of striped bass <em>Morone saxatilis </em>and hybrid striped bass (white bass <em>M. chrysops </em>× striped bass) are intensively managed across the United States for their recreational value using a variety of regulations; however, the full extent of different regulatory strategies is unknown. This paper describes regulations used by states to manage their inland striped bass and hybrid striped bass fisheries. An Internet-based survey seeking information on issues such as stocking dependency, trophy potential, catch rates, and statewide and specialized regulations for both striped bass and hybrid striped bass fisheries was created and distributed to all state agencies. The survey found that 32 states have inland populations of striped bass, hybrid striped bass, or both. Daily creel limits for striped bass and hybrid striped bass ranged from 2 to 30; the most liberal creel limits were found in southern states. Half of the states reported that their statewide length limit for both taxa has few or no exceptions for conditions in particular water bodies, and 85% of states with striped bass and 92% of states with hybrid striped bass enforce a minimum length limit as their statewide length limit. Although both taxa were generally managed with similar regulations, striped bass were usually considered a more important sport fish species and were managed more intensively than hybrid striped bass. A literature review confirmed that little research has been published on the response (or lack thereof) of striped bass and their hybrids to any of the various management schemes reported herein.

Biology and Management of Inland Striped Bass and Hybrid Striped Bass

2013 ◽  
Keyword(s):  
Striped Bass ◽  
Fishery Management ◽  
Meta Analysis ◽  
Handling Time ◽  
Anatomical Site ◽  
Hybrid Striped Bass ◽  
White Bass ◽  
Catch And Release ◽  
By Catch ◽  
Mortality Estimates

<em>Abstract</em>.— We conducted a meta-analysis of existing studies of striped bass <em>Morone saxatilis</em> and hybrid striped bass (striped bass × white bass <em>M. chrysops</em>)catch-and-release mortality in freshwaters. Water temperature or season (<EM>P</EM> < 0.0001) and anatomical site of hooking (<EM>P</EM> < 0.0001) were the most consistently significant predictors of striped bass catch-and-release mortality. Bait type (<EM>P</EM> = 0.0007), presence of bleeding in hooked fish (<EM>P</EM> = 0.0017), and handling time (<EM>P</EM> = 0.0363) also affected catch-and-release mortality. Only two studies examined catch-and-release mortality of hybrid striped bass. We conducted surveys of fishery management agencies and striped bass fishing clubs to assess their opinions about the importance of catch-and-release mortality in striped bass and hybrid striped bass fisheries. Compared with fishery management agencies, a greater proportion of fishing clubs believed that catch-and-release mortality impacted striped bass fisheries. In general, fishery management agencies believed that striped bass catch-and-release mortality was low, although most had little information, and viewed catch-and-release mortality as a social, rather than biological, issue. To assess the potential impacts of catch-and-release mortality on striped bass fisheries, we constructed a simple model that, based on average summer release rates and water temperatures, estimated the proportion of striped bass total summer catch lost to catch-and-release mortality. Estimates ranged from 16% to 60% (mean = 36%) if all fish were captured on natural baits and 11% to 31% (mean = 19%) if all fish were captured on artificial baits. Although most fishery management agencies view catch-and-release mortality of striped bass and hybrid striped bass as mostly a social issue, it appears that they currently underestimate the magnitude of the biological problems presented by catch-andrelease fishing for striped bass and hybrid striped bass.

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