scholarly journals A review of growth and life-history traits of native and non-native European populations of black bullhead Ameiurus melas

2016 ◽  
Vol 26 (3) ◽  
pp. 441-469 ◽  
Author(s):  
Gordon H. Copp ◽  
Ali Serhan Tarkan ◽  
Gérard Masson ◽  
Michael J. Godard ◽  
Ján Koščo ◽  
...  
Keyword(s):  
Life History ◽  
Life History Traits ◽  
Black Bullhead ◽  
European Populations ◽  
Ameiurus Melas

Morphological variability of black bullhead Ameiurus melas in four non-native European populations

2013 ◽  
Vol 82 (4) ◽  
pp. 1103-1118 ◽  
Author(s):  
A. Novomeská ◽  
S. Katina ◽  
G. H. Copp ◽  
G. Pedicillo ◽  
M. Lorenzoni ◽  
...  
Keyword(s):  
Morphological Variability ◽  
Black Bullhead ◽  
European Populations ◽  
Ameiurus Melas

scholarly journals Can Invasiveness in Freshwater Fishes Be Predicted From Life-History Traits?

2020 ◽  
Vol 8 ◽  
Author(s):  
Gordon H. Copp ◽  
Michael G. Fox
Keyword(s):  
Life History ◽  
Life History Traits ◽  
A Priori ◽  
Secondary Data ◽  
Freshwater Fishes ◽  
Lepomis Gibbosus ◽  
Catch Per Unit Effort ◽  
Black Bullhead ◽  
Non Invasive ◽  
Western Asia

We review a model we developed in 2007 to predict the invasion potential of an introduced population, based on the relationship between juvenile growth (mean total length at age 2) and mean age-at-maturity, and test the model with data from 75 non-native populations of pumpkinseed Lepomis gibbosus in nine countries of Europe and western Asia. The database used to construct the model was derived from a mix of primary and secondary data collected between 1981 and 2016. Based on number of specimens collected or catch-per-unit-effort data, and/or comments by the original authors, populations were classified a priori as “invasive” or “non-invasive.” The plot of the proposed model placed populations in three invasiveness categories (non-invasive, transitional, invasive). Of those predicted by the model to be invasive, only 57% were correct with regard to their a priori classification, a result that was not statistically significant. For populations predicted by the model to be non-invasive, 70% were correct with regard to their a priori classification when “transitional” were grouped with non-invasive (P = 0.0024), and 64% were correct when “transitional” were excluded from the test (P = 0.12). Applications of the model to two other non-native freshwater fishes (black bullhead Ameiurus melas and crucian carp Carassius carassius) are also discussed. The lack of stronger statistical support for the model may have been the result of using life-history traits from the populations after they were introduced, as the source populations were unknown, as well as to shortcomings in the dataset that could affect a priori and modeled classifications. We conclude that such life-history models can be useful for predicting invasiveness status in non-native freshwater fishes, though the basis of the predictions, statistical or heuristic, will depend on the size and quality of the underlying life-history database.

scholarly journals Demographic and Life History Characteristics of Black Bullheads Ameiurus melas in a North Temperate USA Lake

Fishes ◽  
2022 ◽  
Vol 7 (1) ◽  
pp. 21
Author(s):  
Logan W. Sikora ◽  
Joseph T. Mrnak ◽  
Rebecca Henningsen ◽  
Justin A. VanDeHey ◽  
Greg G. Sass
Keyword(s):  
Life History ◽  
Growth Rates ◽  
Fish Community ◽  
Limited Information ◽  
Black Bullhead ◽  
Additional Information ◽  
Life History Characteristics ◽  
Introduced Range ◽  
Fish Collection ◽  
Ameiurus Melas

Black bullheads Ameiurus melas are an environmentally tolerant omnivorous fish species that are found throughout much of North America and parts of Europe. Despite their prevalence, black bullheads are an infrequently studied species making their biology, ecology, and life history poorly understood. Although limited information has been published on black bullheads, evidence suggests that bullheads can dominate the fish biomass and have profound influences on the fish community in some north temperate USA lakes. The goal of our study was to provide additional information on black bullhead population demographics, growth rates, life history characteristics, and seasonal diet preferences in a northern Wisconsin lake. Using common fish collection gears (fyke netting, electrofishing), fish aging protocols, fecundity assessments, and diet indices, our results suggested that black bullheads exhibited relatively fast growth rates, early ages at maturity, moderate fecundity, and a diverse omnivorous diet. Due to these demographic and life history characteristics, black bullheads have the potential to dominate fish community biomass in their native and introduced range. Results from our study may inform the management of black bullhead as native and invasive species.

Prey tell: what quillback rockfish early life history traits reveal about their survival in encounters with juvenile coho salmon

2020 ◽  
Vol 650 ◽  
pp. 7-18 ◽  
Author(s):  
HW Fennie ◽  
S Sponaugle ◽  
EA Daly ◽  
RD Brodeur
Keyword(s):  
Life History ◽  
Early Life ◽  
Life History Traits ◽  
Direct Evidence ◽  
Coho Salmon ◽  
Larval Fish ◽  
Early Life History ◽  
In The Wild ◽  
Otolith Microstructure Analysis ◽  
Pelagic Juvenile

Predation is a major source of mortality in the early life stages of fishes and a driving force in shaping fish populations. Theoretical, modeling, and laboratory studies have generated hypotheses that larval fish size, age, growth rate, and development rate affect their susceptibility to predation. Empirical data on predator selection in the wild are challenging to obtain, and most selective mortality studies must repeatedly sample populations of survivors to indirectly examine survivorship. While valuable on a population scale, these approaches can obscure selection by particular predators. In May 2018, along the coast of Washington, USA, we simultaneously collected juvenile quillback rockfish Sebastes maliger from both the environment and the stomachs of juvenile coho salmon Oncorhynchus kisutch. We used otolith microstructure analysis to examine whether juvenile coho salmon were age-, size-, and/or growth-selective predators of juvenile quillback rockfish. Our results indicate that juvenile rockfish consumed by salmon were significantly smaller, slower growing at capture, and younger than surviving (unconsumed) juvenile rockfish, providing direct evidence that juvenile coho salmon are selective predators on juvenile quillback rockfish. These differences in early life history traits between consumed and surviving rockfish are related to timing of parturition and the environmental conditions larval rockfish experienced, suggesting that maternal effects may substantially influence survival at this stage. Our results demonstrate that variability in timing of parturition and sea surface temperature leads to tradeoffs in early life history traits between growth in the larval stage and survival when encountering predators in the pelagic juvenile stage.

When did the black bullhead, Ameiurus melas (Teleostei: Ictaluridae), arrive in Poland?

2010 ◽  
Vol 18 (3) ◽  
Author(s):  
Michał Nowak ◽  
Ján Koščo ◽  
Paweł Szczerbik ◽  
Dominika Mierzwa ◽  
Włodzimierz Popek
Keyword(s):  
Black Bullhead ◽  
Ameiurus Melas

Life History Traits in a Population of Pelobates syriacus (Boettger, 1889) from Turkey

2020 ◽  
Vol 27 (4) ◽  
pp. 195-200
Author(s):  
Ufuk Bülbül ◽  
Halime Koç ◽  
Yasemin Odabaş ◽  
Ali İhsan Eroğlu ◽  
Muammer Kurnaz ◽  
...  
Keyword(s):  
Life History ◽  
Age Structure ◽  
Life History Traits ◽  
Spadefoot Toad ◽  
Males And Females

Age structure of the eastern spadefoot toad, Pelobates syriacus from the Kızılırmak Delta (Turkey) were assessed using phalangeal skeletochronology. Snout-vent length (SVL) ranged from 42.05 to 86.63 mm in males and 34.03 to 53.27 mm in females. Age of adults ranged from 2 to 8 years in males and 3 to 5 years in females. For both sexes, SVL was significantly correlated with age. Males and females of the toads reached maturity at 2 years of age.

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