Influence of nutrient enrichment on the growth, recruitment and trophic ecology of a highly invasive freshwater fish

Ruiz Navarro, Ana

Publication:
Influence of nutrient enrichment on the growth, recruitment and trophic ecology of a highly invasive freshwater fish

dc.contributor	Jackson, Michelle C.
dc.contributor	Almeida, David
dc.contributor	Britton, J. Robert
dc.contributor.author	Ruiz Navarro, Ana
dc.contributor.department	Didáctica de las Ciencias Experimentales
dc.date.accessioned	2024-01-30T08:34:11Z
dc.date.available	2024-01-30T08:34:11Z
dc.date.issued	2020
dc.description	©2020. The authors. This document is made available under the CC-BY 4.0 license http://creativecommons.org/licenses/by/4.0/ This document is the accepted version of a Published Work that appeared in final form in Aquatic Ecology. To access the final edited and published work see https://doi.org/10.1007/s10452-020-09791-9
dc.description.abstract	The establishment probability of introduced alien ﬁsh can be context dependent, varying according to factors including propagule pressure and biotic resistance. The inﬂuence of nutrient enrichment on establishment outcomes of alien ﬁshes is uncertain, yet this is a common anthropogenic stressor of many freshwaters. Here, the small-bodied alien topmouth gudgeon Pseudorasbora parva was used in mesocosms to experimentally test how a gradient of nutrient enrichment affected their growth rates, recruitment and trophic ecology. A ‘Control’ represented ambient, mesotrophic conditions, while treatments covered three levels of nutrient enrichment: low (eutrophic), medium (hypertrophic) and high (very hypertrophic). Each mesocosm was seeded with 6 mature P. parva (equal sex ratio) at the start of their reproductive season. After 100 days, length increments of the adult ﬁsh were signiﬁcantly elevated in the low treatment, and these ﬁsh had also produced signiﬁcantly higher numbers of 0? ﬁsh compared to all other treatments. The trophic niche width of the mature ﬁsh was substantially higher in the control than the treatments, but this did not appear to confer any advantages to them in somatic growth rate or reproductive output. These results suggest that the nutrient status of receiving waters can have substantial impacts on the outcomes of ﬁsh introductions, where eutrophic conditions can assist the rapid population establishment of some alien species.	es
dc.format	application/pdf	es
dc.format.extent	11
dc.identifier.doi	https://doi.org/10.1007/s10452-020-09791-9
dc.identifier.eisbn	Aquatic Ecology, 54, 1029-1039	es
dc.identifier.uri	http://hdl.handle.net/10201/138067
dc.language	eng	es
dc.publisher	Springer
dc.relation	The study was supported by the Natural Environment Research Council (NERC research Grant reference number NE/H000429/1) and the ‘RINSE’ project which is part funded through the Interreg IVA 2 Seas Programme, which promotes cross-border cooperation between coastal regions, with the support of European Regional Development Fund (ERDF).	es
dc.relation.publisherversion	https://link.springer.com/article/10.1007/s10452-020-09791-9
dc.rights	info:eu-repo/semantics/openAccess	es
dc.rights	Atribución 4.0 Internacional	*
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	*
dc.subject	Establishment
dc.subject	Eutrophication
dc.subject	Pseudorasbora parva
dc.subject	Stable isotope analysis
dc.subject	0+ fish
dc.title	Influence of nutrient enrichment on the growth, recruitment and trophic ecology of a highly invasive freshwater fish	es
dc.type	info:eu-repo/semantics/article	es
dspace.entity.type	Publication	es