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Showing 1 to 14 of 14 for “"Round goby"”.
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Auditory development and multi-sensory integration in the round goby, Neogobius melanostomus
… examined auditory structure and function in the round goby (Neogobius melanostomus) to ascertain how developmental changes may influence hearing ability. In the second chapter of this dissertation, I investigate how the morphology of auditory and mechanosensory systems can be used to explain a …
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Characterizing Patterns Of Round Goby (Neogobius Melanostomus) Distribution Using Morphometrics, Occupancy Modeling, And Population Genetics
… mechanisms of dispersal, establishment of round goby, Neogobius melanostomus, in the Laurentian Great Lakes has generally benefitted from continuous connections among the lakes and accessible shorelines. This dissertation (1) examined the effects of distance in affecting round goby invasion …
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Range expansion in the invasive Round goby (Neogobius melanostomus): behavioural and gene transcriptional components of a successful invader
… to novel environments. My study species, the round goby (Neogobius melanostomus), is an invasive fish continuously expanding its range in the Laurentian Great Lakes and its tributaries. This thesis aims to examine: 1) the behavioural repertoire of the round goby 2) differential gene …
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Spatiotemporal trends and relationships in the abundance, growth, and condition of common nearshore fishes of southwest Lake Michigan
… which represents a valuable sport fishery; the round goby, an invasive omnivore; and the alewife, an invasive planktivore. The objective of this research was to explore spatiotemporal patterns in the abundance of fishes in the nearshore area of the Illinois waters of Lake Michigan as well as to …
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DETERMINATION OF STANDARD AND FIELD METABOLIC RATES IN TWO GREAT LAKES INVADING FISH SPECIES: ROUND GOBY (NEOGOBIUS MELANOSTOMUS) AND TUBENOSE GOBY (PROTERORHINUS SEMILUNARIS)
The dawn chorus is a bout of increased song output performed by birds prior to sunrise during the breeding season. Although nearly ubiquitous among avian species, the dawn chorus is poorly understood compared to daytime song. Little is known about how extrinsic variables influence dawn chorus …
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Interpreting Predator – Prey Interactions in Cayuga Lake Fishes Using Fatty Acid Signature Analysis
… in the lake; alewife (Alosa pseudoharengus) and round goby (Neogobius melanostomus). The main objectives of the study were to assess FAS dissimilarity between prey species and then compare each prey FAS to lake trout FAS. Fish were collected in 2014 and 2015 using seine nets (alewife, n = 255 and …
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Selected elements in Lake Michigan round goby (Neogobius melanostomus) reproductive physiology: spawning effort and determination of reproductive status of females and sperm competition in two reproductively distinct male morphs
The round goby (Neogobius melanostomus) is a species within a large, tolerant, prolific family of fishes, Gobiidae, and has successfully invaded the Laurentian Great Lakes over the past two decades. Among the many reasons for their success are physiological factors that allow round goby to rapidly …
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Diet and trophic relationships of fishes from the nearshore of the Bay of Quinte and Kingston Basin, Lake Ontario
… In Chapter 2, diet and trophic position of the Round Goby (Neogobius melanostomus) varied seasonally and spatially between these two habitats. Stable isotopes indicated that stomach contents over-estimated the contribution of mollusc-prey to the diet of Round Goby and under-estimated the …
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Diet Analysis of Burbot from Eastern Lake Michigan: 1999-2012
… 2006 to ~15% in 2012. During the same time span, round goby (<em>Neogobius melanostomus</em>) contribution to burbot diet increased from ~0% before 2006 to greater than 60% in 2012, implying nearly a complete diet shift of burbot in just six years. The diet shift suggests a change in feeding …
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Aspects of Bowfin and Northern Sunfish Biology and Ecology
… and invasive species have increased, such as round goby (Neogobius melanostomus; +200% CPUE). Analysis of similarities (ANOSIM) revealed a significant difference in the LTWC fish community between years (R = 0.806, P = 0.001), and non-metric multidimensional scaling (nMDS) showed a strong …
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The Consequences of Non-Native Species Invasions on the Contemporary and Historic Trophic Ecology of Native Sport Fish in a Lake Michigan Embayment
… shared use of common prey items including round goby (<em>Neogobius melanostomus</em>)]. As length increased, northern pike and smallmouth bass increased their reliance on nearshore resources, while walleye increased reliance on pelagic resources. Isotope analysis over a 31-year time series …
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Invasive species: fundamental and applied science
… the predatory invasive fish, the Ponto-Caspian round goby (Neogobius melanostomus), relative to a native endangered analogue, the bullhead (Cottus gobio). Across three oxygen saturation levels, I assess impact using FR, RIP and a new metric called the Relative Total Impact Potential that …
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The ecological and geological response to the introduction of a nearshore reef in southern Lake Michigan
The student, Amber Schmidt, accepted the attached license on 2024-12-11 at 10:15.
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STOMACH CONTENT ANALYSIS OF BOTULISM-AFFECTED BIRDS IN LAKE MICHIGAN
… season to use as BoNT/E-free references. Round gobies were found in 86% of the BoNT/E-positive birds, 76% of the BoNT/E-negative birds, and 94% of the BoNT/E-free cormorants examined in this study. The grand mean total length of gobies consumed by bird species ranged from 70.82 ± 3.42 mm …