Results 41 to 50 of about 72,863 (247)

Intra-lake origin and rapid expansion of invasive pelagic three-spined stickleback in Lake Constance [PDF]

open access: yesNeoBiota
The rapid expansion of three-spined stickleback (Gasterosteus aculeatus Linnaeus, 1758 (Perciformes, Gasterosteida)) in the pelagic zone of Lake Constance, Central Europe, since 2012 contributed to stark ecosystem-wide effects, such as food-web shifts ...
Carolin Dahms   +5 more
doaj   +3 more sources

Effect of water chemistry on zooplanktonic and microbial communities across freshwater ecotones in different macrophyte-dominated shallow lakes

open access: yesJournal of Limnology, 2015
Complex interactions between zooplankton and microbial food webs are vital to the ecosystem ecology of shallow lakes. However, little is known about how horizontal changes in environmental conditions may influence microbial and metazoan communities in ...
Tomasz Mieczan   +3 more
doaj   +1 more source

Response to Limitations on inferring shark vulnerability from spatial habitat protection

open access: yesGlobal Ecology and Conservation, 2021
Our paper entitled “Shark conservation hindered by lack of habitat protection” (Birkmanis et al., 2020a), prompted Braccini and Newman to write a reply based on (i) our title, which they thought implied that a global assessment was made, and (ii) their ...
Charlotte A. Birkmanis   +2 more
doaj   +1 more source

Pelagic calcium carbonate production and shallow dissolution in the North Pacific Ocean

open access: yesNature Communications, 2023
Ziveri et al find calcifying phytoplankton dominate pelagic CaCO3 production, but a large portion of this CaCO3 dissolves in the photic zone - they suggest the processes driving shallow CaCO3 dissolution are key to understanding the role of planktonic ...
Patrizia Ziveri   +11 more
doaj   +1 more source

Climate variability and El Niño Southern Oscillation: implications for natural coastal resources and management

open access: yes, 2008
The El Niño Southern Oscillation (ENSO) significantly influences marine ecosystems and the sustained exploitation of marine resources in the coastal zone of the Humboldt Current upwelling system.
Heilmayer, O., Laudien, J., Thatje, S.
core   +1 more source

Base line studies North Sea wind farms: strategy of approach for pelagic fish [PDF]

open access: yes, 2003
The Dutch Government has decided to allow the construction of a Near Shore Wind Farm (NSW) demonstration project under the condition that a monitoring programme on - among other things - the ecological impacts is carried out.
Couperus, A.S., Grift, R.E., Ybema, M.S.
core   +1 more source

Distribution of Oikopleura Dioica (Tunicata, Appendicularia) associated with a coastal frontal system (39°- 41°s) of the SW Atlantic ocean in the spawning area of Engraulis Anchoita anchovy [PDF]

open access: yes, 2013
Among tunicates, the small planktonic appendicularians generally comprise a significant fraction of the mesozooplankton in frontal systems. The summer 2011 distribution (vertical and spatial) of Oikopleura dioica was studied in terms of abundance ...
Capitanio, Fabiana Lia   +3 more
core   +4 more sources

Assessment of the pelagic fish populations using CEN multi-mesh gillnets: consequences for the characterization of the fish communities [PDF]

open access: yesKnowledge and Management of Aquatic Ecosystems, 2008
The contribution of CEN standard pelagic nets to the assessment of fish communities is tested by comparing three metrics (species composition, species abundance, and size structures) measured in accordance with the standard (i.e. using benthic nets only)
C. Deceliere-Vergès, J. Guillard
doaj  

On catch of deep-sea shark Chlamydoselachus anguineus (Chlamydose¬lachidae) on Emperor Seamounts

open access: yesИзвестия ТИНРО, 2018
Description of frill shark Chlamydoselachus anguineus (TL 134.3 cm) is presented that was caught in the pelagic layer of the North-West Pacific in June 1979, including surface morphometric parameters and data on number of vertebras, teeth rows, and ...
V. N. Dolganov
doaj   +1 more source

Incidental catches of pelagic megafauna by the EU pelagic fleet in the Mauritanian exclusive economic zone during the year 2001 : results extracted from the scientific observer program [PDF]

open access: yes, 2003
The joint project between the Netherlands Institute for Fisheries Research (RIVO) and the Mauritanian Institute for Oceanography and Fisheries Research (IMROP) has been initiated in 1998 in order to strengthen Mauritania’s capacity for research on stocks
Hofstede, R., ter
core   +1 more source

Home - About - Disclaimer - Privacy