Physicochemical and Biological Influences on Black Bullhead Populations in Eastern South Dakota Glacial Lakes

Brown, Michael L.; Willis, David W.; Blackwell, Brian G.

doi:10.1080/02705060.1999.9663654

Cited by 15 publications

(26 citation statements)

References 8 publications

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“…It seems likely that this situation is the consequence of intense intraspecific competition, due to the recent numerical expansion of the population, as is evidenced by the increase in CPUEs in recent years. Indeed, the current CPUE values calculated in the Corbara Reservoir are high and, according to what has been reported by Brown et al (1999), typical of high-density populations. Our analysis also revealed a possible relationship between the relative abundance of the various cohorts and the pattern of relative weight.…”

Section: Discussionmentioning

confidence: 81%

“…Several studies have found that black bullhead growth is highly correlated with relative abundance and size-structure (Moen, 1959;Houser and Collins, 1962;Hanchin et al, 2002a). Black bullhead growth has generally been correlated with the population characteristics of some potential competitors (Brown et al, 1999). Competition for food resources would most likely occur between black bullhead and common carp (Rose and Moen, 1951;Hanchin et al, 2002a).…”

Section: Discussionmentioning

confidence: 99%

“…Black bullhead populations often reach high biomass levels (Brown et al, 1999). For this reason, it is often considered undesirable and a potential threat to autochthonous fish species, on account of both competition for resources and predation upon small fishes.…”

Section: Introductionmentioning

confidence: 99%

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Growth of black bullheadAmeiurus melas(Rafinesque, 1820) in Corbara Reservoir (Umbria – Italy)

Pedicillo

Bicchi

Angeli

et al. 2008

Knowl. Managt. Aquatic Ecosyst.

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The age and growth of the invasive black bullhead Ameiurus melas (Rafinesque, 1820) were studied in the Corbara Reservoir, an artificial lake located on the River Tiber in central Italy. The results of the research revealed that the population was made up of eight cohorts, the oldest specimens being spawned in 1999. The sex ratio appears to be balanced, although females predominate in the younger cohorts, while the percentage of males increases among older specimens. The differences between sexes in the slope of the length-weight relationship were not statistically significant; the slope for the whole sample (b = 3.055) was significantly greater than 3, indicating an allometric growth pattern of the black bullhead. There were no significant differences in mean back-calculated lengths at age between the sexes. Analysis of Lee's phenomenon revealed the existence of differential mortality among younger individuals (1 and 2 years old) that favours larger individuals. The Von Bertalanffy growth function was TL t = 35.69 {1 -exp[-0.18 (t + 0.27)]}. The specimens caught displayed mean relative weight (W r ) values distinctly below 100 at all ages, while no significant difference emerged between the sexes with regard to condition. RÉSUMÉCroissance du poisson-chat Ameiurus melas (Rafinesque, 1820) dans le Lac Corbara (Ombrie -Italie) L'âge et la croissance du poisson-chat invasif Ameiurus melas (Rafinesque, 1820) ont été étudiés dans le Lac Corbara, un lac artificiel situé le long du cours du fleuve Tevere, en Italie centrale. Les résultats de la recherche ont révélé que la population était composée de huit classes d'âges, les spécimens les plus âgés provenant de la fraie de 1999. Le sex-ratio semble être équilibré, bien que les femelles prédomi-nent dans les classes d'âges plus jeunes, tandis que le pourcentage de mâles augmente parmi les spécimens plus âgés. Les différences entre les sexes en matière de pente du rapport longueur-poids n'étaient pas significatives ; la pente de tout l'échantillon (b = 3.055) était significativement supérieure à 3, indiquant que le poisson-chat a un modèle de croissance allométrique. Aucune différence significative n'a été constatée entre les longueurs rétromesurées moyennes des différents sexes au même âge. L'analyse du phénomène de Lee a révélé l'existence d'une

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Section: Discussionmentioning

confidence: 81%

Section: Discussionmentioning

confidence: 99%

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Growth of black bullheadAmeiurus melas(Rafinesque, 1820) in Corbara Reservoir (Umbria – Italy)

Pedicillo

Bicchi

Angeli

et al. 2008

Knowl. Managt. Aquatic Ecosyst.

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“…Agestructure data allow unique assessment of fish populations (e.g., mortality, recruitment limitations), as well as responses to management actions or environmental changes (Buktenica et al 2007). Many age and growth studies have focused on ictalurids (Appelget and Smith 195 1, Sneed 195 1, Mayhew 1969), but there is a paucity of information on the population demographics of black bullhead (Brown et al 1999, Hanchin et al 2002, Phelps et al 2005) despite their potential influence on water quality and fish assemblage characteristics.…”

Section: Inroductionmentioning

confidence: 99%

“…Although found in a variety of natural and man-made waterbodies, black bullhead is often highly abundant in systems with low water clarity and high nutrient concentrations (Brown et al 1999, Hanchin et al 2002, Phelps et al 2005 due to its tolerance of poor water quality conditions (Cross andCollins 1995, Pflieger 1997). As such, black bullhead is often associated with depauperate fish assemblages and is frequently the target of removal efforts to improve water quality and fisheries for more desirable fishes (Houser and Grinstead 1961, Hanson et al 1983, Wydoski and Wiley 1999.…”

Section: Inroductionmentioning

confidence: 99%

Population Characteristics of Black Bullhead (Ameiurus melas) in Iowa Natural Lakes

Mork

Bisping

Fischer

et al. 2009

Journal of Freshwater Ecology

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Fish Community Changes Associated with Bullhead Removals in Four Northern Wisconsin Lakes

Sikora

VanDeHey

Sass

et al. 2021

N American J Fish Manag

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Bullheads Ameiurus spp. are found throughout much of the United States and are infrequently studied species. Although limited information has been published on the Black Bullhead A. melas and Yellow Bullhead A. natalis, it has been shown that bullheads can dominate the fish biomass in some north temperate U.S. lakes, resulting in a fish community exclusive of Walleye Sander vitreus and Yellow Perch Perca flavescens. Recently, recruitment and abundances of popular coolwater sport fishes, such as Walleye and Yellow Perch, have been declining in some northern Wisconsin lakes. These observed declines, coupled with high bullhead densities, led fisheries biologists to conduct whole‐lake bullhead removals on four northern Wisconsin lakes. Removal of Black and Yellow bullheads from these lakes resulted in substantial changes in the fish communities. The CPUE of naturally reproduced age‐0 Walleye increased in Lake Metonga and Patten Lake following the removal of bullheads. Additionally, survival of stocked Walleye increased in Crane and Pickerel lakes after bullhead removals, resulting in higher CPUE of age‐0 and age‐1 Walleye. Subsequently, adult Walleye abundance has increased or remained steady in all bullhead removal lakes. Significant declines in abundance of Bluegill Lepomis macrochirus and increases in abundance of Yellow Perch and Black Crappie Pomoxis nigromaculatus were also observed after bullhead removals, further illustrating a shift in fish community composition. Our observations suggest that when at high densities, bullheads can play a significant role in structuring fish communities and the removal of bullheads can increase recruitment, survival, and abundance of sport fishes like Walleye and Yellow Perch.

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Physicochemical and Biological Influences on Black Bullhead Populations in Eastern South Dakota Glacial Lakes

Cited by 15 publications

References 8 publications

Growth of black bullheadAmeiurus melas(Rafinesque, 1820) in Corbara Reservoir (Umbria – Italy)

Growth of black bullheadAmeiurus melas(Rafinesque, 1820) in Corbara Reservoir (Umbria – Italy)

Population Characteristics of Black Bullhead (Ameiurus melas) in Iowa Natural Lakes

Fish Community Changes Associated with Bullhead Removals in Four Northern Wisconsin Lakes

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