Results 41 to 50 of about 176,252 (389)

Interactive Effects of Hypoxia and Temperature on Coastal Pelagic Zooplankton and Fish

open access: yesFrontiers in Marine Science, 2019
Hypoxia, triggered in large part by eutrophication, exerts widespread and expanding stress on coastal ecosystems. Hypoxia is often specifically defined as water having dissolved oxygen (DO) concentrations < 2 mg L-1.
M. Roman   +3 more
semanticscholar   +1 more source

Effects of the proximal factors on the diel vertical migration of zooplankton in a plateau meso-eutrophic Lake Erhai, China

open access: yesJournal of Limnology, 2014
To study the proximal factors inducing diel vertical migration (DVM) in large and small zooplankton species in a plateau lake in China, we investigated the DVM of crustacean zooplankton in lake Erhai bimonthly from November 2009 to September 2010.
Cuilin Hu   +3 more
doaj   +1 more source

Effects of Early Sea-Ice Reduction on Zooplankton and Copepod Population Structure in the Northern Bering Sea During the Summers of 2017 and 2018

open access: yesFrontiers in Marine Science, 2022
A remarkable early sea-ice reduction event was observed in the northern Bering Sea during 2018. In turn, this unusual hydrographic phenomenon affected several marine trophic levels, resulting in delayed phytoplankton blooms, phytoplankton community ...
Fumihiko Kimura   +5 more
doaj   +1 more source

Cleaner Fish Labroides dimidiatus Presence Does Not Indirectly Affect Demersal Zooplankton

open access: yesFrontiers in Marine Science, 2022
Coral reef mutualisms involve complex trophic ecological relationships that produce indirect effects. Excluding mutualistic cleaner fish Labroides dimidiatus from reefs indirectly increases the abundance of many fishes and reduces demersal stages of ...
Alexandra S. Grutter   +5 more
doaj   +1 more source

Evaluation of marine zooplankton community structure through environmental DNA metabarcoding

open access: yesLimnology and Oceanography : Methods, 2018
Zooplankton dominate the abundance and biomass of multicellular animals in pelagic marine environments; however, traditional methods to characterize zooplankton communities are invasive and laborious. This study compares zooplankton taxonomic composition
Anni Djurhuus   +7 more
semanticscholar   +1 more source

Ocean deoxygenation and zooplankton: Very small oxygen differences matter

open access: yesScience Advances, 2018
Novel midwater ocean sampling shows that physiology dictates zooplankton distributions in submesoscale low oxygen features. Oxygen minimum zones (OMZs), large midwater regions of very low oxygen, are expected to expand as a result of climate change ...
K. Wishner   +11 more
semanticscholar   +1 more source

Winter decrease of zooplankton abundance and biomass in subalpine oligotrophic Lake Atnsjøen (SE Norway)

open access: yesJournal of Limnology, 2019
Despite the rapidly changing winter conditions in temperate ecosystems, little attention has been devoted to the effects of these changes on lake ecology.
Thomas C. Jensen
doaj   +1 more source

Zooplankton and Micronekton Active Flux Across the Tropical and Subtropical Atlantic Ocean

open access: yesFrontiers in Marine Science, 2019
Quantification of the actual amount of carbon export to the mesopelagic layer by both zooplankton and micronekton is at present a gap in the knowledge of the biological pump.
S. Hernández‐León   +7 more
semanticscholar   +1 more source

Zooplankton Biomass in Ponds - Determination of Biovolume and Dry Weight

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2023
The aim of this study was to evaluate the possibility of using simple screening methods to determine zooplankton biomass in ponds. Among the applicable methods, we selected sedimentation determination of wet biomass and dry biomass determination.
Radovan Kopp   +2 more
doaj   +1 more source

Spatial and Seasonal Variations in the Stable Isotope Values and Trophic Positions of Dominant Zooplankton Groups in Jiaozhou Bay, China

open access: yesFrontiers in Marine Science, 2022
The spatial and seasonal distributions of stable carbon and nitrogen isotopes (δ13C and δ15N) in dominant zooplankton groups were investigated in Jiaozhou Bay.
Zhixin Ke   +9 more
doaj   +1 more source

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