Results 31 to 40 of about 30,362 (237)

Feeding preferences of amphipod crustaceans Ampithoe ramondi and Gammarella fucicola for Posidonia oceanica seeds and leaves

open access: yesScientia Marina, 2019
The functional importance of herbivory in seagrass beds is highly variable among systems. In Mediterranean seagrass meadows, macroherbivores, such as the fish Sarpa salpa and the sea urchin Paracentrotus lividus, have received most research attention, so
Inés Castejón-Silvo   +2 more
doaj   +1 more source

The light requirements for growth and photosynthesis in seagrasses with emphasis on Texas estuaries : a literature survey [PDF]

open access: yes, 1993
During the last 20 years, seagrass communities throughout the world have experienced decreased productivity and distribution. These declines have often been attributed to decreased water transparency as a result of turbidity or shading by epiphytic algae.
Dunton, Kenneth H., Kaldy, J. E.
core   +1 more source

Real-Time Classification of Seagrass Meadows on Flat Bottom with Bathymetric Data Measured by a Narrow Multibeam Sonar System

open access: yesRemote Sensing, 2016
Seagrass meadows, one of the most important habitats for many marine species, provide essential ecological services. Thus, society must conserve seagrass beds as part of their sustainable development efforts.
Masahiro Hamana, Teruhisa Komatsu
doaj   +1 more source

Effects of harvesting methods on sustainability of a bay scallop fishery: dredging uproots seagrass and displaces recruits [PDF]

open access: yes, 2005
Fishing is widely recognized to have profound effects on estuarine and marine ecosystems (Hammer and Jansson, 1993; Dayton et al., 1995). Intense commercial and recreational harvest of valuable species can result in population collapses of target and ...
Bishop, Melanie J.   +3 more
core   +3 more sources

Porewater Carbonate Chemistry Dynamics in a Temperate and a Subtropical Seagrass System [PDF]

open access: yesAquatic Geochemistry, 2020
AbstractSeagrass systems are integral components of both local and global carbon cycles and can substantially modify seawater biogeochemistry, which has ecological ramifications. However, the influence of seagrass on porewater biogeochemistry has not been fully described, and the exact role of this marine macrophyte and associated microbial communities
Theodor Kindeberg   +7 more
openaire   +3 more sources

Positive feedbacks in seagrass ecosystems--evidence from large-scale empirical data. [PDF]

open access: yesPLoS ONE, 2011
Positive feedbacks cause a nonlinear response of ecosystems to environmental change and may even cause bistability. Even though the importance of feedback mechanisms has been demonstrated for many types of ecosystems, their identification and ...
Tjisse van der Heide   +4 more
doaj   +1 more source

Habitat connectivity in reef fish communities and marine reserve design in Old Providence-Santa Catalina, Colombia [PDF]

open access: yes, 2003
On the insular platform of Old Providence/Santa Catalina, Colombia, we compared nearshore lagoonal patch reefs to those on the northern bank distant from the islands to determine the importance of habitat connectivity to fish community structure ...
Appeldoorn, R.S.   +4 more
core   +2 more sources

Aeolian transport of seagrass (Posidonia oceanica) beach-cast to terrestrial systems [PDF]

open access: yesEstuarine, Coastal and Shelf Science, 2017
Abstract The annual export of the Mediterranean seagrass ( Posidonia oceanica ) litter to adjacent beaches and coastal dunes was quantified by examining the fortnight evolution of seagrass beach-cast volume on two beaches in the NW Mediterranean (Son Real and Es Trenc, Mallorca Island, Spain) for two years and analyzing the wind speed and direction ...
Maria A. Jiménez   +5 more
openaire   +2 more sources

Methane Production by Seagrass Ecosystems in the Red Sea

open access: yesFrontiers in Marine Science, 2017
Atmospheric methane (CH4) is the second strongest greenhouse gas and it is emitted to the atmosphere naturally by different sources. It is crucial to define the dimension of these natural emissions in order to forecast changes in atmospheric CH4 mixing ...
Neus Garcias-Bonet, Carlos M. Duarte
doaj   +1 more source

Potential uptake of dissolved organic matter by seagrasses and macroalgae [PDF]

open access: yes, 2011
Dissolved organic nitrogen (DON) acts as a large reservoir of fixed nitrogen. Whereas DON utilization is common in the microbial community, little is known about utilization by macrophytes.
Bouma, Tjeerd J.   +8 more
core   +5 more sources

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