Results 121 to 130 of about 1,028,789 (326)

Relative impacts of morphological alteration to shorelines and eutrophication on littoral macroinvertebrates in Mediterranean lakes [PDF]

open access: yes, 2015
Development of effective methods for assessing the ecological status of lakes based on littoral benthic fauna has been hampered by the lack of quantitative data on the relative impacts of key pressures on the benthic community.
BAZZANTI, Marcello   +8 more
core   +1 more source

Prolonged low flows and non‐native fish operate additively to alter insect emergence in mountain streams

open access: yesLimnology and Oceanography, EarlyView.
Abstract Climate‐induced flow alteration is decreasing snowpack and advancing snowmelt, subjecting mountain streams to longer low‐flow periods. Yet, anticipating how stream ecosystems respond to prolonged low flows remains challenging because distinct trophic levels can respond differently, and non‐native predators can dampen or amplify responses. Here,
Charlotte Evangelista   +5 more
wiley   +1 more source

From the individual to the colony: Marine invertebrates as models to understand levels of biological organization

open access: green, 2021
Laurel S. Hiebert   +7 more
openalex   +2 more sources

Marine Invertebrate-Associated Bacteria In Coral Reef Ecosystems As A New Source Of Bioactive Compounds [PDF]

open access: yes, 2004
Coral reefs are the most species-rich environments in the oceans. Reefs cover 0.2% of the ocean’s area and yet they provide home to one-third of marine fishes and to tens of thousands of other species.
Karna Radjasa , Ocky
core  

Environmental issues and the geological storage of CO2 : a discussion document [PDF]

open access: yes, 2005
Increasing CO2 emissions will lead to climate change and ocean acidification with severe consequences for ecosystems and for human society. Strategies are being sought to reduce emissions including the geological storage of CO2.
Cawley   +30 more
core   +5 more sources

Blooms of filamentous cyanobacteria reduce zooplankton quality and pelagic food web efficiency

open access: yesLimnology and Oceanography, EarlyView.
Abstract Cyanobacterial blooms in marine and freshwater ecosystems have increased in magnitude, frequency, and distribution worldwide during recent decades. Filamentous cyanobacteria are of unsuitable size for mesozooplankton feeding and of poorer nutritional quality than other phytoplankton taxa. The production and quality of higher trophic levels are
Tharindu Bandara   +10 more
wiley   +1 more source

Bioactive Compounds from Marine Invertebrates for Potential Medicines - An Overview

open access: yesInternational Letters of Natural Sciences, 2015
The present review deals with the bioactive compounds of the marine non-chordates. The potent medicinal usage of the bioactive compounds viz. steroids, terpenoids, isoprenoid and non-isoprenoid compounds, quinones, brominated compounds, nitrogen ...
D. Datta, S. Talapatra, S. Swarnakar
semanticscholar   +1 more source

Field Guide to Nonindigenous Marine Fishes of Florida [PDF]

open access: yes, 2009
The purpose of this field guide is to provide information on nonindigenous (i.e., non-native) fishes that have been observed in Florida’s marine waters. Introductions of non-native marine fishes into Florida’s waters could be intentional or unintentional,
Akins, Lad   +2 more
core  

Contrasting responses to catchment modification among a range of functional and structural indicators of river ecosystem health [PDF]

open access: yes, 2009
1. The value of measuring ecosystem functions in regular monitoring programs is increasingly being recognised as a potent tool for assessing river health.
Barbour   +76 more
core   +2 more sources

Light and temperature as triggers for surface filamentous green algal blooms in shallow freshwater systems

open access: yesLimnology and Oceanography, EarlyView.
Abstract Blooms of filamentous green algae (FGA) form dense mats at the surface of shallow freshwaters and have multiple negative impacts on aquatic ecosystem functions, services, and aesthetics. Although nutrient enrichment in freshwaters is a primary driver of excessive FGA growth, much less is known about other abiotic factors controlling bloom ...
Hannah R. Kemp   +8 more
wiley   +1 more source

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