Results 91 to 100 of about 97,002 (301)

Ecological relationships between phytoplankton communities at different spatial scales in European reservoirs: implications at catchment level monitoring programmes.

open access: yes, 2009
Phytoplankton communities are structured by factors acting over temporal and spatial scales. Identifying which factors are driving spatial patterns in aquatic communities is the central aim of ecology.
Rui Cortes   +17 more
core   +1 more source

Nutrient enrichment destabilizes aquatic food webs through synchronization within and across trophic levels

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Nutrient enrichment destabilizes ecosystems globally, but the mechanistic pathways underlying this effect in multi‐trophic communities remain unclear. To address this knowledge gap, we applied biodiversity–stability theory to multi‐trophic communities by partitioning ...
Libin Zhou   +12 more
wiley   +1 more source

The influence of physico-chemical parameters on phytoplankton distribution in a head water stream of Garhwal Himalayas: A case study

open access: yesEgyptian Journal of Aquatic Research, 2016
Physico-chemical parameters play a major role in determining the density, diversity and occurrence of phytoplankton in a headwater stream. The present study was conducted to assess the relationship between physico-chemical parameters and phytoplankton ...
Ramesh C. Sharma   +2 more
doaj   +1 more source

Bio-optical investigation of phytoplankton production in the southern Benguela ecosystem

open access: yes, 2011
This study aims to evaluate various existing models for the estimation of PP in the southern Benguela ecosystem, and to investigate the photophysiological responses of phytoplankton to changes in environmental ...
Lamont, Tarron
core  

How The Environmental RNA Signature of Nitrate Reductase Can Be Used as a Predictor for Phytoplankton Distribution

open access: yes, 2021
With anthropogenic climate change altering the ocean, it is critical to understand what variables control phytoplankton distribution so we can predict how distributions will be altered as result of climate change.
Gardiner, Amanda
core  

Physical controls and mesoscale variability in the Labrador Sea spring phytoplankton bloom observed by Seaglider [PDF]

open access: yes, 2009
We investigated the 2005 spring phytoplankton bloom in the Labrador Sea using Seaglider, an autonomous underwater vehicle equipped with hydrographic, bio-optical and oxygen sensors.
Rhines, Peter B.   +2 more
core   +1 more source

Invasive goldfish trigger a regime shift in experimental lake ecosystems of varying trophic state

open access: yesJournal of Animal Ecology, EarlyView.
The pet trade distributes exotic animals around the globe that enrich human lives. However, some pets become pests when released into the wild. This study provides experimental evidence that goldfish will negatively affect native freshwater organisms and ecosystems.
William D. Hintz   +2 more
wiley   +1 more source

Content in nine minerals and seven vitamins of rotifers (Brachionus plicatilis) fed commercial diets and two forms of Nannochloropsis oculata

open access: yesJournal of the World Aquaculture Society
The objective of the present study was to determine the effects of spray‐dried and fresh forms of the microalgae Nannochloropsis oculata and other commonly used commercial diets on vitamin and mineral compositions of rotifer produced under commercial ...
Kamil Mert Eryalçın   +2 more
doaj   +1 more source

IDENTIFICATION OF RELEVANT TIME-SCALES IN NONEQUILIBRIUM COMMUNITY DYNAMICS - CONCLUSIONS FROM PHYTOPLANKTON SURVEYS

open access: yes, 1994
This paper is a reflection on J.B. Wilson's (1990) publication which presents an attempt to understand the development of terrestrial plant communities of New Zealand against twelve different explanations of Hutchinson's Paradox.
Padisák, Judit
core  

Biological invasions disrupt the relationship between size spectrum and trophic interactions in freshwater fish communities

open access: yesJournal of Animal Ecology, EarlyView.
Our study shows that non‐native species alter the relationship between the size‐spectrum slope and the predator–prey mass ratio (PPMR) in freshwater fish communities by occupying distinct trophic niches. Abstract The size spectrum, which describes the relationship between abundance (or biomass) and body size, is an ataxic approach that can provide ...
Valentin Marin   +3 more
wiley   +1 more source

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