Fish and land use influence Gammarus lacustris and Hyalella azteca (Amphipoda) densities in large wetlands across the upper Midwest

Autor:	Alan D. Afton, Andrea C. E. Anteau, Michael J. Anteau, E. Barry Moser
Rok vydání:	2011
Předmět:	Amphipoda biology Ecology Aquatic plant Cyprinidae Hyalella azteca Aquatic Science Pimephales promelas biology.organism_classification Gammarus lacustris Hydrobiology Azteca
Zdroj:	Hydrobiologia. 664:69-80
ISSN:	1573-5117 0018-8158
DOI:	10.1007/s10750-010-0583-2
Popis:	Gammarus lacustris and Hyalella azteca (hereafter G. lacustris and H. azteca, respectively) are important components of secondary production in wetlands and shallow lakes of the upper Midwest, USA. Within the past 50 years, amphipod densities have decreased while occurrences of fish and intensity of agricultural land use have increased markedly across this landscape. We investigated influences of fish, sedimentation, and submerged aquatic vegetation (SAV) on densities of G. lacustris and H. azteca in semipermanent and permanent wetlands and shallow lakes (n = 283) throughout seven eco-physiographic regions of Iowa, Minnesota, and North Dakota during 2004–2005. G. lacustris and H. azteca densities were positively correlated with densities of SAV (P
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::765d3e33a2aeb45f8e7bc237458f2df3 https://doi.org/10.1007/s10750-010-0583-2 Zobrazit plný text záznamu Plný text ve formátu PDF