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You searched for: Source 2018 v.805 no.1 Remove constraint Source: 2018 v.805 no.1 Subject ecosystems Remove constraint Subject: ecosystems
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1. Correlates of fish and aquatic macrophyte beta diversity in the Upper Paraná River floodplain

Author:
Fernanda Ceschin; Luis Mauricio Bini; André Andrian Padial
Source:
Hydrobiologia 2018 v.805 no.1 pp. 377-389
ISSN:
0018-8158
Subject:
community structure; dams (hydrology); ecosystems; fish; fish communities; floodplains; hydrology; introduced species; macrophytes; models; oligotrophication; rivers; species diversity; temporal variation; uncertainty
Abstract:
... We investigated correlates of long-term temporal variation in the beta diversity of macrophytes, sedentary fish, and migratory fish communities in the Upper Paraná River floodplain. Two metrics of among-site variation in community composition were calculated in up to 45 sampling periods over 12 years for each biological group. We then tested the following beta diversity correlates: richness and pr ...
DOI:
10.1007/s10750-017-3325-x

2. Crude oil at concentrations considered safe promotes rapid stress-response in Lake Baikal endemic amphipods

Author:
Ekaterina P. Shchapova; Denis V. Axenov-Gribanov; Yulia A. Lubyaga; Zhanna M. Shatilina; Kseniya P. Vereshchagina; Ekaterina V. Madyarova; Eugeniy S. Protasov; Maxim A. Timofeyev
Source:
Hydrobiologia 2018 v.805 no.1 pp. 189-201
ISSN:
0018-8158
Subject:
Amphipoda; acute exposure; acute toxicity; aquaculture; aquatic environment; ecosystems; enzyme activity; fisheries; lipid peroxidation; littoral zone; monitoring; oils; petroleum; stress response; water reservoirs; water solubility; Lake Baikal; Russia
Abstract:
... The current study evaluated the possible toxic effects of the water-soluble fraction of crude oil on the general cellular stress-response mechanisms of two dominant representatives of Lake Baikal’s littoral community, the endemic amphipod species Eulimnogammarus verrucosus and E. cyaneus. The acute toxicity effects on the cellular stress-response mechanisms of amphipods were studied in the laborat ...
DOI:
10.1007/s10750-017-3303-3

3. In the mood for wood-habitat specific colonization patterns of benthic invertebrate communities along the longitudinal gradient of an Austrian river

Author:
Florian Dossi; Patrick Leitner; Steffen Pauls; Wolfram Graf
Source:
Hydrobiologia 2018 v.805 no.1 pp. 245-258
ISSN:
0018-8158
Subject:
benthic organisms; biodiversity; ecological restoration; ecosystems; emotions; fauna; fluid mechanics; habitats; invertebrates; rivers; wood; Austria
Abstract:
... Instream large wood (LW) constitutes an indispensable element of natural river ecosystems. It affects local hydraulics, morphology, nutrient budget, overall habitat complexity, and dynamics. Despite numerous studies about LW as a habitat for benthic communities, information on the varying importance along the longitudinal gradient of a river is lacking. The focus of this study is therefore to inve ...
DOI:
10.1007/s10750-017-3307-z

4. Range estimates and habitat use of invasive Silver Carp (Hypophthalmichthys molitrix): evidence of sedentary and mobile individuals

Author:
Austin R. Prechtel; Alison A. Coulter; Luke Etchison; P. Ryan Jackson; Reuben R. Goforth
Source:
Hydrobiologia 2018 v.805 no.1 pp. 203-218
ISSN:
0018-8158
Subject:
Hypophthalmichthys molitrix; ecosystems; fish; habitats; home range; indigenous species; invasive species; landscapes; rivers
Abstract:
... Unregulated rivers provide unobstructed corridors for the dispersal of both native and invasive species. We sought to evaluate range size and habitat use of an invasive species (Silver Carp, Hypophthalmichthys molitrix) in an unimpounded river reach (Wabash River, IN), to provide insights into the dispersal of invasive species and their potential overlap with native species. We hypothesized that r ...
DOI:
10.1007/s10750-017-3296-y

5. Phytoplankton response to experimental thermocline deepening: a mesocosm experiment

Author:
Géza B. Selmeczy; Lothar Krienitz; Peter Casper; Judit Padisák
Source:
Hydrobiologia 2018 v.805 no.1 pp. 259-271
ISSN:
0018-8158
Subject:
Planktothrix rubescens; climate change; community structure; ecosystems; lakes; models; phytoplankton; Germany
Abstract:
... A number of modelling results suggested thermocline shifts as a consequence of global climate change in stratifying lakes. Abundance and composition of the phytoplankton assemblage is strongly affected by the stratification patterns, and therefore, change in the thermocline position might have a substantial effect on this community or even on the whole lake ecosystem. In this study, thermocline de ...
DOI:
10.1007/s10750-017-3308-y