Results 51 to 60 of about 7,565 (222)

Long-term changes of physicochemical parameters and benthos in Lake Qarun (Egypt): Can we make a correct forecast of ecosystem future?

Knowledge and Management of Aquatic Ecosystems, 2016
Biotic changes and a salinity increase (from 13 to 40 g.L-1) occurred in Lake Qarun (Egypt) since 1901. Was salinity increasing a cause of observed biotic changes? To answer this question we used benthos as a model group.
Shadrin N. V., EL-Shabrawy G. M., Anufriieva E. V., Goher M. E., Ragab E.   +4 more
doaj   +1 more source

Distribution and taxonomic identity of the species of Narcine (Toperdiniformes: Narcinidae) in the southwestern Atlantic Ocean

Journal of Fish Biology, EarlyView.
Abstract The genus Narcine is the most diverse among electric rays of the order Torpediniformes and is also the only electric ray genus with more than one species occurring in South American waters: Narcine brasiliensis and Narcine bancroftii. The first species has been historically described as distributed from Brazil's southeast coast down to ...
Marcus Vinicius Gonçalves Araújo, Ricardo de Souza Rosa, João Paulo Capretz Batista da Silva   +2 more
wiley   +1 more source

Monitoring of Water Quality Using Phytoplankton, Protozoa, and Benthos as Bioindicator in Chadeebucha Canal, Nakhon Pathom Province

Applied Environmental Research, 2013
Water quality was monitored using phytoplankton, protozoa and benthos as bioindicators in Chadeebhucha Canal, Nakhon Pathom Province. Data was collected during 12 sampling periods at 9 stations, 4 times per month in April, August and December, 2007 ...
Thanawan Panich-pat, Warin Yenwaree, Rattiya Ongmali   +2 more
doaj   +2 more sources

Understanding marine biodiversity patterns and drivers: The fall of Icarus

Marine Ecology, EarlyView.
Abstract Biodiversity patterns are fundamental in our understanding of the distribution of life, ecosystem function, and conservation. In this concept analysis, A survey of the existing knowledge on marine biodiversity patterns and drivers across latitudes, longitudes, and depths indicates that none of the postulated patterns represent a rule.
Roberto Danovaro
wiley   +1 more source

The food niche overlap of five fish species in the Úpoř brook (Central Bohemia)

Knowledge and Management of Aquatic Ecosystems, 2013
The diet and food niche overlap of five fish species in the Úpoř brook was evaluated. The supply of food represented by benthos was studied, and the proportion of total food particles in the intestine of brown trout Salmo trutta L ...
Vlach P., Švátora M., Dušek J.
doaj   +1 more source

Spatial and temporal patterns of macroinvertebrates in drift and on substrate of a mountain stream (Cordoba, Central Argentina)

Acta Limnologica Brasiliensia, 2013
AIMS: The aims of this study are to evaluate the effects of spatial and temporal variability of the macroinvertebrate fauna in drift and in the substrate of a mountain stream.
María Daniela Barbero, Ana María Oberto, Cristina Mabel Gualdoni   +2 more
doaj   +1 more source

The Greenland–Scotland Ridge in a Changing Ocean: Time to Act?

Marine Ecology, EarlyView.
ABSTRACT The Greenland–Scotland Ridge is a submarine mountain that rises up to 500 m below the sea surface and extends from the east coast of Greenland to the continental shelf of Iceland and across the Faroe Islands to Scotland. The ridge not only separates deeper ocean basins on either side, that is, the North Atlantic and Arctic oceans, but also ...
Christophe Pampoulie, Saskia Brix, Haseeb S. Randhawa   +2 more
wiley   +1 more source

Assessing the ecological and aesthetic effectiveness of restoration interventions on coralligenous reefs

Restoration Ecology, EarlyView.
Although tools for actively restoring marine habitats have advanced considerably, the capacity and timeframes for ecosystem recovery remain uncertain. Time and funding constraints, and lacking metrics to quantify the recovery process, represent the primary obstacles to evaluating restoration success.
Edoardo Casoli, Sofia Raschetti, Nicolas Mouquet, Daniele Ventura, Gianluca Mancini, Marina Penna, Andrea Belluscio, Giandomenico Ardizzone   +7 more
wiley   +1 more source

Impaired Short-Term Functioning of a Benthic Community from a Deep Norwegian Fjord Following Deposition of Mine Tailings and Sediments

Frontiers in Marine Science, 2017
The extraction of minerals from land-based mines necessitates the disposal of large amounts of mine tailings. Dumping and storage of tailings into the marine environment, such as fjords, is currently being performed without knowing the potential ...
Lisa Mevenkamp, Tanja Stratmann, Katja Guilini, Leon Moodley, Dick van Oevelen, Ann Vanreusel, Stig Westerlund, Andrew K. Sweetman   +7 more
doaj   +1 more source

Specialized Committees of International Organizations an Important Source of Organizational Autonomy

Regulation &Governance, EarlyView.
ABSTRACT Assigning the preparation of decisions to specialized committees composed of member state representatives is a widespread response to the ‘governor's dilemma’, that is, the tension between competence and control, in international organizations (IOs). We theorize a causal mechanism referring to self‐selection and agenda‐setting effects and show
Michael Giesen, Thomas Gehring, Simon Linder, Thomas Rixen   +3 more
wiley   +1 more source