New bass on the block: Trophic interactions among invasive largemouth bass Micropterus salmoides and local sportfish.
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| Format: | Artículo científico |
| Langue: | en |
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Journal of fish biology
2025
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| _version_ | 1868266280119697409 |
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| author | Culberson, Abigale E Nakamoto, Bobby Lento, Jennifer Curry, R Allen Harrison, Philip M |
| author_facet | Culberson, Abigale E Nakamoto, Bobby Lento, Jennifer Curry, R Allen Harrison, Philip M Culberson, Abigale E Nakamoto, Bobby Lento, Jennifer Curry, R Allen Harrison, Philip M |
| collection | PubMed - marine biology |
| contents | New bass on the block: Trophic interactions among invasive largemouth bass Micropterus salmoides and local sportfish. Culberson, Abigale E Nakamoto, Bobby Lento, Jennifer Curry, R Allen Harrison, Philip M Animals Bass Carbon Isotopes Food Chain Nitrogen Isotopes Introduced Species Ecosystem Perches Novel introductions of largemouth bass, Micropterus salmoides, often cause negative impacts on endemic populations of prey fishes and interspecific competitors. Although many studies have investigated trophic interactions between M. salmoides and smallmouth bass, Micropterus dolomieu, few have included chain pickerel, Esox niger, as a competitor despite similarities in their habitat use. We used stable isotope analysis to investigate the trophic ecology of a recently introduced population of M. salmoides in the Wolastoq|Saint John River. Specifically, we measured carbon (δC) and nitrogen (δN) isotopes to describe isotopic niches and infer resource use of introduced M. salmoides, M. dolomieu, E. niger, and native yellow perch, Perca flavescens, at various life stages. Our results showed that isotopic niche overlap occurred between M. salmoides and other study species, indicative of resource competition. However, resource use plasticity, as demonstrated by a wide variety of resources (marine, terrestrial, littoral, and pelagic) used by all study species, could potentially reduce interspecific competition. Our findings indicate that competition is highest between adult M. salmoides and E. niger, but the presence of a seasonal marine resource can provide important contributions to diets and potentially reduce competition. Further research should focus on monitoring of long-term trends to identify the dynamics of all study species as M. salmoides populations become further established and dispersed. |
| format | Artículo científico |
| id | pubmed_39557602 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | Journal of fish biology |
| record_format | pubmed |
| spellingShingle | New bass on the block: Trophic interactions among invasive largemouth bass Micropterus salmoides and local sportfish. Culberson, Abigale E Nakamoto, Bobby Lento, Jennifer Curry, R Allen Harrison, Philip M Animals Bass Carbon Isotopes Food Chain Nitrogen Isotopes Introduced Species Ecosystem Perches New bass on the block: Trophic interactions among invasive largemouth bass Micropterus salmoides and local sportfish. Culberson, Abigale E Nakamoto, Bobby Lento, Jennifer Curry, R Allen Harrison, Philip M Animals Bass Carbon Isotopes Food Chain Nitrogen Isotopes Introduced Species Ecosystem Perches Novel introductions of largemouth bass, Micropterus salmoides, often cause negative impacts on endemic populations of prey fishes and interspecific competitors. Although many studies have investigated trophic interactions between M. salmoides and smallmouth bass, Micropterus dolomieu, few have included chain pickerel, Esox niger, as a competitor despite similarities in their habitat use. We used stable isotope analysis to investigate the trophic ecology of a recently introduced population of M. salmoides in the Wolastoq|Saint John River. Specifically, we measured carbon (δC) and nitrogen (δN) isotopes to describe isotopic niches and infer resource use of introduced M. salmoides, M. dolomieu, E. niger, and native yellow perch, Perca flavescens, at various life stages. Our results showed that isotopic niche overlap occurred between M. salmoides and other study species, indicative of resource competition. However, resource use plasticity, as demonstrated by a wide variety of resources (marine, terrestrial, littoral, and pelagic) used by all study species, could potentially reduce interspecific competition. Our findings indicate that competition is highest between adult M. salmoides and E. niger, but the presence of a seasonal marine resource can provide important contributions to diets and potentially reduce competition. Further research should focus on monitoring of long-term trends to identify the dynamics of all study species as M. salmoides populations become further established and dispersed. |
| title | New bass on the block: Trophic interactions among invasive largemouth bass Micropterus salmoides and local sportfish. |
| topic | Animals Bass Carbon Isotopes Food Chain Nitrogen Isotopes Introduced Species Ecosystem Perches |
| url | https://pubmed.ncbi.nlm.nih.gov/39557602/ |