دورية أكاديمية
Brown trout density effects on the macroinvertebrate and biofilm communities of headwater streams: a cage experiment
| العنوان: | Brown trout density effects on the macroinvertebrate and biofilm communities of headwater streams: a cage experiment |
|---|---|
| المؤلفون: | López-de Sancha, Alejandro, Roig, Romero, Arañó, Martí, Vila i Gispert, Anna, Guasch i Padró, Helena |
| المصدر: | Limnetica, 2023, vol. 42, núm. 1 ; Articles publicats (D-CCAA) |
| بيانات النشر: | Asociación Ibérica de Limnología |
| سنة النشر: | 2023 |
| المجموعة: | Universitat de Girona: DUGiDocs (UdG Digital Repository) |
| مصطلحات موضوعية: | Ecologia d'aigua dolça, Freshwater ecology, Peixos -- Factors climàtics, Fishes -- Climatic factors |
| الوصف: | Salmo trutta is a key species of headwater streams that is able to influence the structure of these ecosystems through predation. Populations of this species are being threatened by climate change and hydrological alteration. In order to understand how their disappearance would affect the ecosystem structure of headwater streams, we used cage experiments to analyse different biofilm and macroinvertebrate structural parameters and the biodiversity of their communities under different trout densities. Due to a heavy rain event, our experiment was destroyed on the 10th day, but the role of trout as stream ecosystemic structure drivers was observed, as multiple parameters were modulated by their presence or absence. In the high-density treatments, a significant reduction in the biomass of macroinvertebrate families that fed on biofilms was observed due to direct predation on them, which caused the biofilms to be more autotrophic. A decrease in brown trout population densities could cause cascading trophic effects on the ecosystem structure of headwater streams |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/issn/0213-8409; http://hdl.handle.net/10256/21995Test |
| الإتاحة: | https://doi.org/10.23818/limn.42.02Test http://hdl.handle.net/10256/21995Test |
| حقوق: | Attribution-NonCommercial 4.0 International ; http://creativecommons.org/licenses/by-nc/4.0Test/ ; info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.58BA2EA |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |