Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Monthly, overwinter and annual instantaneous growth rates for round goby Neogobius melanostomus were calculated with maximal growth occurring in July and August and almost no growth observed between ice appearance (October) and melt (March). Annual absolute growth rates averaged 27·3 ± 1·9 mm for males and 19·8 ± 2·4 mm for females. The most parsimonious Cormack-Jolly-Seber model indicated that both the survival and recapture probabilities were dependent on sampling date, but not sex. Survival estimates remained high throughout the 13 month study with a median weekly survival probability of 0·920 (25 and 75% quartiles: 0·767 and 0·991), an overwinter survival probability of 99% and an annual survival rate of 67%. Survival probabilities were lowest for both sexes near the completion of the N. melanostomus reproductive season in July and August which supports existing evidence of higher mortality after reproduction, while challenging the paradigm that male N. melanostomus suffer comparatively higher mortality as a result of reproduction than females. Evidence indicating that growth and mortality rates are highest at the end of the reproductive season not only highlights seasonal variability in N. melanostomus natural history, but may also guide the control of this invasive species to periods when they are most vulnerable.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/j.1095-8649.2012.03470.x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Distribution of viral hemorrhagic septicemia virus in the nearshore fish community of the St. Lawrence River.
J Aquat Anim Health
September 2025
Department of Environmental Biology, College of Environmental Science and Forestry, State University of New York, Syracuse, New York, USA.
Objective: We investigated viral hemorrhagic septicemia virus dynamics in wild fish populations of the St. Lawrence River to compare host competency among five abundant native species and the invasive Round Goby Neogobius melanostomus following two decades of host-pathogen coevolution. To examine species' responses to the virus and identify principal hosts as viral reservoir species, we used viral surveillance among Round Gobies, Yellow Perch Perca flavescens, Rock Bass Ambloplites rupestris, Pumpkinseed Lepomis gibbosus, Bluegill L.
View Article and Find Full Text PDFSalinity tolerance of Round Goby: Informing invasion potential in North American coastal watersheds.
PLoS One
April 2025
Department of Natural Resources and the Environment, Cornell University, Ithaca, New York, United States of America.
Since being introduced into the Laurentian Great Lakes in the 1990s, round goby (Neogobius melanostomus) has spread rapidly, reaching the Hudson River Estuary, NY in 2021. To address the expansion potential into saline environments from this North American coastal invasion front, we experimentally assessed the salinity tolerance of adult round gobies. Water temperatures vary widely in temperate aquatic ecosystems, and our study is the first to investigate the effect of temperature on the salinity tolerance of round goby, conducting tolerance trials at three temperatures: a preferred temperature of 20°C, 26°C reflective of summer conditions, and 5°C reflective of winter conditions.
View Article and Find Full Text PDFA new species of freshwater gobiid fish of genus Rhnogobius Gill, 1859, were collected from the Jangshi river basin, southern region of Fujian Province, China. Rhinogobius jangshiensis new species can be well distinguished from other congeners by their specific patterns of coloration and meristic features: (1) fins rays: second dorsal fin rays I/8; anal fin rays I/7; pectoral fin rays modally 17; (2) squamation: longitudinal scale series 28-30 (modally 29); perdorsal scales 9-10 (modally 9); vertebral count 27; and (3) specific colouration pattern: cheek with 4 main oblique black stripes in male; branchiostegal membrane grayish blue with about 26-32 rounded, brilliant orange red spots in male; caudal fin gray with some light rounded spots and basal black spotted patch and large central yellow mark in adult male. A diagnostic key to all valid species from Fujian Province, China would be provided in this paper.
View Article and Find Full Text PDFHow does round goby (Neogobius melanostomus) affect fish abundance in the Swedish coastal areas of the Baltic Sea?
PLoS One
May 2025
Department of Aquatic Resources, Swedish University of Agricultural Sciences, Uppsala, Sweden.
Quantifying the effects of species invasions is particularly challenging, as it requires accurate measurements of the ecosystem before and after the invasion. The round goby (Neogobius melanostomus), a highly successful invasive species from the Ponto-Caspian region, has had significant ecological impacts on native communities in the invaded ecosystems. However, there are currently no studies examining the impact of the round goby invasion on the abundance of coastal fish in the Baltic Sea.
View Article and Find Full Text PDFMultiple invasions decimate the most imperiled freshwater invertebrates.
Biol Invasions
February 2025
Cornell Biological Field Station and Department of Natural Resources and the Environment, Cornell University, Ithaca, NY 14850 USA.
Unlabelled: Invaders can have devastating impacts on freshwater ecosystems, but these impacts can subside over time as ecosystems "adapt" to the invasion of new species. We analyzed changes in species composition and density of molluscs in Oneida Lake (New York, USA), one of the best studied North American lakes based on detailed surveys conducted in 1915-17, 1967-68, 1992-95, 2012, and 2022-23, and on annual benthic surveys from 2009 through 2023. Eutrophication and habitat alteration after 1920 resulted in a 25% decline in species richness and a 95% decline in the density of native gastropods by 1967, while species richness of unionids did not change.
View Article and Find Full Text PDF