干旱区生态环境知识资源中心(Arid): Aquatic macroinvertebrates from littoral vegetated lakes in arid Patagonia: The influence of fish introduction on community structure

Arid

DOI	10.1002/aqc.3522
	Aquatic macroinvertebrates from littoral vegetated lakes in arid Patagonia: The influence of fish introduction on community structure
	Eugenia Lopez, Maria; Saad, Juan; Izaguirre, Irina; Cristina Marinone, Maria; Soledad Fontanarrosa, Maria
通讯作者	Fontanarrosa, MS (corresponding author), Inst Multidisciplinario Ecosistemas & Desarrollo, Pasaje Arroyo Seco S-N,Campus Univ, RA-7000 Tandil, Buenos Aires, Argentina.
来源期刊	AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS
ISSN	1052-7613
EISSN	1099-0755
出版年	2021
英文摘要	Wetlands in arid regions are characterized by their great heterogeneity, often including endemic species that contribute to regional aquatic biodiversity. In the Patagonian steppe, most lakes are naturally fishless and sustain a rich aquatic biodiversity, including endemics; however, many of these lakes have been stocked with Oncorhynchus mykiss (rainbow trout) during recent decades. The introduction of predatory fish into aquatic ecosystems naturally devoid of these organisms can produce profound alterations in the structure of the original communities and in the configuration of their biotic assemblages. Aquatic invertebrates play important roles in both the structure and functioning of freshwater ecosystems, including their contribution to global biodiversity and their cascading effects across ecosystem boundaries. The aim of this study was to assess the effect of introduced non-native fish on the pleustonic macroinvertebrate assemblage. Samples were taken from 10 shallow Patagonian lakes (five fishless and five stocked with fish) in two consecutive warm periods. Lakes with fish had higher conductivity and phosphate values. Higher inter-annual differences were also observed in lakes with fish for phytoplanktonic chlorophyll a, nitrate, phosphate, conductivity, and water temperature. The community structure (relative abundance of different taxa, species composition, and diversity index) was affected by the presence of rainbow trout, with the differences mainly driven by the relative abundance of Ostracoda, Hyalella, Chironomidae, and Haliplus species. This approach can be used to assess the required conservation actions in shallow Patagonian steppe lakes, which have been listed as priority areas for waterbird conservation. Specifically, this study provides a baseline for monitoring future trends of the macroinvertebrate communities and for evaluating conservation and management efforts over time.
英文关键词	aquatic macroinvertebrates arid Patagonian region exotic species fish‐ stocked lakes macrophytes wetlands
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000646885000001
WOS关键词	SHALLOW-LAKES ; RAINBOW-TROUT ; ARGENTINA ; HABITAT ; INVERTEBRATES ; DYTISCIDAE ; CHALLENGES ; VARIABLES ; PATTERNS ; CLIMATE
WOS类目	Environmental Sciences ; Marine & Freshwater Biology ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352048
作者单位	[Eugenia Lopez, Maria] Ctr Austral Invest Cient, Ushuaia, Argentina; [Eugenia Lopez, Maria; Saad, Juan; Izaguirre, Irina; Soledad Fontanarrosa, Maria] Consejo Nacl Invest Cient & Tecn, Buenos Aires, DF, Argentina; [Saad, Juan] Consejo Nacl Invest Cient & Tecn, Ctr Invest Aplicada & Transferencia Tecnol Recurs, San Antonio Oeste, Rio Negro, Argentina; [Izaguirre, Irina] Univ Buenos Aires, CONICET, Inst Ecol Genet & Evoluc Buenos Aires, Buenos Aires, DF, Argentina; [Cristina Marinone, Maria] Univ Buenos Aires, Dept Biodiversidad & Biol Expt, Buenos Aires, DF, Argentina; [Soledad Fontanarrosa, Maria] Univ Nacl Ctr Prov Buenos Aires, Comis Invest Cient, Inst Multidisciplinario Ecosistemas & Desarrolo S, Tandil, Argentina
推荐引用方式 GB/T 7714	Eugenia Lopez, Maria,Saad, Juan,Izaguirre, Irina,et al. Aquatic macroinvertebrates from littoral vegetated lakes in arid Patagonia: The influence of fish introduction on community structure[J],2021.
APA	Eugenia Lopez, Maria,Saad, Juan,Izaguirre, Irina,Cristina Marinone, Maria,&Soledad Fontanarrosa, Maria.(2021).Aquatic macroinvertebrates from littoral vegetated lakes in arid Patagonia: The influence of fish introduction on community structure.AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS.
MLA	Eugenia Lopez, Maria,et al."Aquatic macroinvertebrates from littoral vegetated lakes in arid Patagonia: The influence of fish introduction on community structure".AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS (2021).