Dynamics of the seasonal migration of Round Goby ( Neogobius melanostomus , Pallas 1814) and implications for the Lake Ontario food web

2021 ◽  
Author(s):  
Christopher M. Pennuto ◽  
Knut Mehler ◽  
Brian Weidel ◽  
Brian F Lantry ◽  
Eric Bruestle
Keyword(s):  
Food Web ◽  
Round Goby ◽  
Lake Ontario ◽  
Neogobius Melanostomus ◽  
Seasonal Migration

scholarly journals Feeding ecology and niche overlap of Lake Ontario offshore forage fish assessed with stable isotopes

2018 ◽  
Vol 75 (5) ◽  
pp. 759-771 ◽  
Author(s):  
James A. Mumby ◽  
Timothy B. Johnson ◽  
Thomas J. Stewart ◽  
Edmund A. Halfyard ◽  
Brian C. Weidel ◽  
...  
Keyword(s):  
Stable Isotopes ◽  
Fish Species ◽  
Round Goby ◽  
Lake Ontario ◽  
Niche Overlap ◽  
Neogobius Melanostomus ◽  
Forage Fish ◽  
Isotopic Niche ◽  
Ecosystem Structure ◽  
Rainbow Smelt

The forage fish communities of the Laurentian Great Lakes continue to experience changes that have altered ecosystem structure, yet little is known about how they partition resources. Seasonal, spatial, and body size variation in δ13C and δ15N was used to assess isotopic niche overlap and resource and habitat partitioning among the five common offshore Lake Ontario forage fish species (n = 2037; alewife (Alosa pseudoharengus), rainbow smelt (Osmerus mordax), round goby (Neogobius melanostomus), and deepwater (Myoxocephalus thompsonii) and slimy (Cottus cognatus) sculpins). Round goby had the largest isotopic niche (6.1‰2, standard ellipse area), followed by alewife (3.4‰2), while rainbow smelt, slimy sculpin, and deepwater sculpin had the smallest and similar niche size (1.7‰2–1.8‰2), with only the sculpin species showing significant isotopic niche overlap (>63%). Stable isotopes in alewife, round goby, and rainbow smelt varied with location, season, and size, but did not vary in the sculpin species. Lake Ontario forage fish species have partitioned food and habitat resources, and non-native alewife and round goby have the largest isotopic niche, suggestive of a boarder ecological niche, and may contribute to their current high abundance.

Patterns of integration of invasive round goby (Neogobius melanostomus) into a nearshore freshwater food web

Food Webs ◽  
2017 ◽  
Vol 10 ◽  
pp. 26-38 ◽  
Author(s):  
Carolyn J. Foley ◽  
M. Lee Henebry ◽  
Austin Happel ◽  
Harvey A. Bootsma ◽  
Sergiusz J. Czesny ◽  
...  
Keyword(s):  
Food Web ◽  
Round Goby ◽  
Neogobius Melanostomus

Using acoustic telemetry and snorkel surveys to study diel activity and seasonal migration of round goby (Neogobius melanostomus ) in an estuary of the Western Baltic Sea

2019 ◽  
Vol 26 (2) ◽  
pp. 172-182 ◽  
Author(s):  
Mads Christoffersen ◽  
Jon C. Svendsen ◽  
Jane W. Behrens ◽  
Niels Jepsen ◽  
Mikael van Deurs
Keyword(s):  
Baltic Sea ◽  
Acoustic Telemetry ◽  
Round Goby ◽  
Neogobius Melanostomus ◽  
Seasonal Migration ◽  
Diel Activity

Alternative Ecological Pathways in the Eastern Lake Ontario Food Web—Round Goby in the Diet of Lake Trout

2006 ◽  
Vol 32 (2) ◽  
pp. 395-400 ◽  
Author(s):  
Jason P. Dietrich ◽  
Bruce J. Morrison ◽  
James A. Hoyle
Keyword(s):  
Food Web ◽  
Lake Trout ◽  
Round Goby ◽  
Lake Ontario

Invasion dynamics of round goby (Neogobius melanostomus) in Hamilton Harbour, Lake Ontario

2010 ◽  
Vol 12 (11) ◽  
pp. 3861-3875 ◽  
Author(s):  
Luis A. Vélez-Espino ◽  
Marten A. Koops ◽  
Sigal Balshine
Keyword(s):  
Round Goby ◽  
Lake Ontario ◽  
Neogobius Melanostomus ◽  
Invasion Dynamics ◽  
Hamilton Harbour

Seasonal migration and fine‐scale movement of invasive round goby (Neogobius melanostomus) in a Great Lakes tributary

2018 ◽  
Vol 28 (2) ◽  
pp. 200-208 ◽  
Author(s):  
Scott G. Blair ◽  
Chelsea May ◽  
Brian Morrison ◽  
Michael G. Fox
Keyword(s):  
Great Lakes ◽  
Round Goby ◽  
Neogobius Melanostomus ◽  
Seasonal Migration ◽  
Fine Scale

Morphometric variability in round goby Neogobius melanostomus (Perciformes: Gobiidae) from the Sea of Azov

2017 ◽  
Vol 26 (2) ◽  
pp. 392-405 ◽  
Author(s):  
O.A. Diripasko ◽  
T.A. Zabroda
Keyword(s):  
Round Goby ◽  
Joint Effect ◽  
Neogobius Melanostomus ◽  
Sea Of Azov ◽  
Morphometric Characters ◽  
One Dimensional ◽  
The Sea Of Azov ◽  
Size Dependent ◽  
Size Variability ◽  
Males And Females

A total of 38 morphometric characters of the round goby Neogobius melanostomus melanostomus (Pallas, 1814) were studied in its native range in the Sea of Azov. The aim was to assess joint effect of sexual dimorphism and size variability on overall variability within groups of samples (populations) using appropriate methods of traditional statistical analysis (one-dimensional and multivariate statistics). Sex and size-dependent variability was studied based on model samples of males and females of different size. Most of the studied morphometric characters of round goby from the Sea of Azov demonstrated statistically significant sex- and size-dependent in-group variability. The pattern of the variability suggests that, for a comparison of round goby from different sea regions and between populations, separate samples of males and females within the range 9–13 cm SL should be examined in order to minimise the effect of the size and sex factors. The approach of searching for the most informative size range could be useful not only for further studies of infraspecific variation but for comparisons between morphologically close gobiin species.

scholarly journals Feeding activity and diet composition of round goby (Neogobius melanostomus, Pallas 1814) in the coastal waters of SE Baltic Sea

2015 ◽  
Vol 44 (4) ◽  
Author(s):  
Artūras Skabeikis ◽  
Jūratė Lesutienė
Keyword(s):  
Baltic Sea ◽  
Coastal Waters ◽  
Diet Composition ◽  
Feeding Activity ◽  
Macoma Balthica ◽  
Round Goby ◽  
Benthic Fauna ◽  
Neogobius Melanostomus ◽  
The Body ◽  
Gut Contents

AbstractFeeding activity and diet composition of round goby were investigated in the south-eastern Baltic Sea, the Lithuanian coastal waters during May-October 2012 in order to determine main feeding objects and seasonal periods when native fauna could be most affected by predation of this highly invasive species. In total, prey represented by 18 taxa was found in the gut contents of dissected fish. Feeding activity of round goby varied depending on the body size, sex and stage of the reproduction period. The gut contents of < 50 mm specimens were dominated by zooplanktonic and meiobenthic organisms, whereas larger individuals (50–99 mm) shifted to amphipods and mollusks. Individuals of the intermediate 100-200 mm length had a variable diet, changing depending on the season; in spring they mostly preyed on Macoma balthica, in summer − on polychaetes, while in autumn the contribution of Mytilus trossulus and fish considerably increased in their diet. Diet composition of individuals ≥ 200 mm was relatively constant in the course of the study with substantial preference to M. balthica. These findings imply that benthic fauna, particularly a newly settled generation of epibenthic mollusks in autumn is under strong predatory pressure of the round goby.

Sign in / Sign up

Export Citation Format

Share Document