Results 61 to 70 of about 13,186 (228)

Geometric Morphometrics Reveal Body Shape Variation in Freshwater Shrimps of the Genus Macrobrachium Lacking a Mandibular Palp (Formerly Pseudopalaemon Sollaud, 1911) (Decapoda: Palaemonidae)

open access: yesActa Zoologica, EarlyView.
ABSTRACT Shape variation in the cephalothorax of Macrobrachium species without mandibular palp using geometric morphometrics was used as a tool to support species differentiation and propose new diagnostic characters for taxonomic identification.
Thaís Arrais Mota   +4 more
wiley   +1 more source

Effect of removal of free-floating macrophytes on zooplankton habitat in shallow wetland

open access: yesKnowledge and Management of Aquatic Ecosystems, 2014
Submerged macrophytes improve the structural heterogeneity of microhabitats in aquatic ecosystems, often providing an important habitat for zooplankton.
Choi Jong-Yun   +3 more
doaj   +1 more source

Species composition and morpho-ecological groups of aquatic macrophytes in foothill lakes on the eastern slope of the Southern Urals (Chelyabinsk region, Russia) [PDF]

open access: yesCheck List, 2015
The aquatic macrophyte richness in nine lakes situated in the Chelyabinsk region (Russia) was analyzed. These lakes represent the foothill group, located on the eastern slope of the Southern Urals range.
Elena Veisberg
doaj   +3 more sources

Can we predict community-wide effects of herbicides from toxicity tests on macrophyte species? [PDF]

open access: yes, 2011
Macrophyte communities play an essential role in the way freshwater ecosystems function. It is thus of great concern to understand how environmental factors, especially anthropogenic ones, influence their composition and diversity.
Coutris, Claire   +4 more
core   +2 more sources

Worldwide Invasions of Centrarchidae: The Dark Side of the Sunfish Family

open access: yesFish and Fisheries, EarlyView.
ABSTRACT Freshwater fish invasions are major drivers of global ecological change, disrupting native biodiversity and ecosystem functions. However, many invasive fish hold significant socioeconomic value, resulting in conflict over their management. Centrarchidae, which are globally distributed and are important for sportfishing and aquaculture, are now
Neil Angelo Abreo   +19 more
wiley   +1 more source

Efficient sampling methodologies for lake littoral invertebrates in compliance with the European Water Framework Directive [PDF]

open access: yes, 2015
Lake shores are characterised by a high natural variability, which is increasingly threatened by a multitude of anthropogenic disturbances including morphological alterations to the littoral zone. The European Water Framework Directive (EU WFD) calls for
Brauns, Mario   +7 more
core   +1 more source

Points vs. passes: A comparison between electric fishing techniques for sampling fish populations in upland headwater streams

open access: yesJournal of Fish Biology, EarlyView.
Abstract Point‐abundance sampling by electric fishing (PASE) was compared with single‐pass (DF1) and triple‐pass depletion sampling (DF3) electric fishing on the same reaches of four headwater streams sampled over multiple years in the Ribble catchment, UK. Juvenile salmonids, mostly brown trout Salmo trutta with some Atlantic salmon S.
Reagan H. Pearce   +3 more
wiley   +1 more source

Investigation on the trends and characteristics of articles on submerged macrophytes: perception from bibliometrics between 1991 and 2018

open access: yesJournal of Freshwater Ecology, 2019
Submerged macrophytes, as one of the most important primary producers in shallow lakes and streams, have attracted significant research attention, with relevant studies showing dynamic evolution over the past three decades.
Hui Liu, Kai Peng, Wei Li, Yu Cao
doaj   +1 more source

The distribution of submerged macrophytes in response to intense solar radiation and salinity reveals hydrogen peroxide as an abiotic stress indicator

open access: yesScientific Reports, 2023
The feasible condition for submerged macrophyte growth is hard to understand as many environmental factors contribute to establishing macrophyte distribution with different intensities generating excess reactive oxygen species (ROS).
Takashi Asaeda   +6 more
doaj   +1 more source

Effects of turbidity and introduced tilapia (Oreochromis spp) on macrophytes and invertebrates in a shallow tropical lake

open access: yesKnowledge and Management of Aquatic Ecosystems, 2023
Tropical freshwater wetlands are subject to multiple stressors but there is little information on which stressors cause wetland degradation. Increased turbidity is considered a major cause of degradation, but the effects of introduced fish are often ...
Rasoamihaingo Laurence Adel   +4 more
doaj   +1 more source

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