Results 101 to 110 of about 173,631 (338)

Regional variability in the trophic requirements of shelf sea fisheries in the Northeast Atlantic, 1973-2000 [PDF]

open access: yes, 2005
Hydrographic, plankton, benthos, fisheries landings, and fish diet data from shelf sea areas in the Northeast Atlantic have been combined into an analysis of the foodweb structure and secondary production requirements of regional fisheries. Fish landings
Baretta-Bekker   +22 more
core   +1 more source

Epistemic opacity in Antarctic science: Unknowing the last frontier

open access: yesPeople and Nature, EarlyView.
Abstract Antarctica is facing intensifying pressures from climate change, industrial fishing, tourism and renewed geopolitical competition, even as scientific activity on the continent reaches unprecedented levels. We argue that this proliferation of research often fails to deliver the integrated, policy‐relevant knowledge needed for precautionary ...
Virginia Morandini, Álvaro Soutullo
wiley   +1 more source

The planktonic food web in the Gulf of Naples based on the analysis of carbon and nitrogen stable isotope ratios

open access: yesMarine Ecology, EarlyView., 2023
Abstract Plankton play a key role in marine food webs by producing and transferring organic matter and energy to higher trophic levels. To define the trophic structure and interactions within the planktonic communities in the Gulf of Naples, we determined carbon and nitrogen stable isotope ratios in particulate organic matter (POM, <20 μm ...
Louise Merquiol   +2 more
wiley   +1 more source

Effect of suspended solids on interaction between filter-feeding fish Aristichthys nobilis and zooplankton in a shallow lake using a mesocosm experiment

open access: yesJournal of Freshwater Ecology, 2017
Suspended solids (SS) resulting from sediment resuspension (SR) can impact ecosystems through direct and indirect effects on freshwater organisms and their interactions.
Meijun Chen, Feizhou Chen
doaj   +1 more source

Zooplankton richness, abundance and biomass of two hypertrophic shallow lakes with different salinity [PDF]

open access: yes, 2012
The zooplankton of lakes is controlled by biological and physico-chemical parameters. Among the former, predation by fish can determine the replacement of large-sized species by small-sized ones and among the latter, salinity exerts negative effects on ...
Cabrera, Gabriela Cecilia   +3 more
core  

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

When invasions go unnoticed: Public perception of the freshwater jellyfish Craspedacusta sowerbii in Europe

open access: yesPeople and Nature, EarlyView.
Abstract Biological invasions are a major driver of biodiversity loss, yet inconspicuous or “cryptic” species often escape detection and public awareness, limiting management responses. We investigated the freshwater jellyfish Craspedacusta sowerbii, likely native to China and now present on six continents, through a 22‐month multilingual online survey
Guillaume Marchessaux   +17 more
wiley   +1 more source

Abundance, condition, and diet of juvenile Pacific ocean perch (Sebastes alutus) in the Aleutian Islands [PDF]

open access: yes, 2009
T he relative value of pelagic habitat for three size classes of juvenile Pacific ocean perch (Sebastes alutus) was investigated by comparing their abundance and condition in two areas of the Aleutian Islands. Diet, zooplankton biomass, and water column
Boldt, Jennifer L.   +1 more
core  

Assimilation of machine‐learning‐predicted nitrate to improve the quality of phytoplankton forecasting in the shelf‐sea environment

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
This article demonstrates that assimilating machine‐learning‐derived surface nitrate can improve five‐day phytoplankton forecast substantially within the Met Office operational system for the Northwest European Shelf. We explain the reasons behind this improvement and propose that an online system where machine learning and data assimilation are cycled
Deep S. Banerjee   +2 more
wiley   +1 more source

Remote sensing of zooplankton swarms

open access: yesScientific Reports, 2019
Zooplankton provide the key link between primary production and higher levels of the marine food web and they play an important role in mediating carbon sequestration in the ocean. All commercially harvested fish species depend on zooplankton populations.
S. Basedow   +8 more
semanticscholar   +1 more source

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