Results 81 to 90 of about 29,546 (216)

The effects of a benthic grazer on the primary productivity of the littoral zone of Lake Tahoe1 [PDF]

Limnology and Oceanography, 1975
A large population of crayfish (Pacifastacus leniusculus) inhabits the littoral zone of Lake Tahoe. The effect of crayfish grazing on the primary productivity of the periphyton was investigated in field and laboratory enclosures by varying the ratio of crayfish to substrate. In the field, primary productivity was enhanced after 66 days in a low density
R. Warren Flint, Charles R. Goldman
openaire   +2 more sources

Restored intertidal eelgrass (Z. marina) supports benthic communities taxonomically and functionally similar to natural seagrasses in the Wadden Sea

Frontiers in Marine Science
Ecological restoration has become an important management-tool to counteract the widespread losses of seagrass meadows and their associated biodiversity.
Max L. E. Gräfnings, Max L. E. Gräfnings, Ise Grimm, Stephanie R. Valdez, India Findji, Tjisse van der Heide, Tjisse van der Heide, Tjisse van der Heide, Jannes H. T. Heusinkveld, Kasper J. Meijer, Britas Klemens Eriksson, Quirin Smeele, Laura L. Govers, Laura L. Govers, Laura L. Govers   +14 more
doaj   +1 more source

Disentangling the socio-ecological drivers behind illegal fishing in a small-scale fishery managed by a TURF system [PDF]

arXiv, 2020
A substantial increase in illegal extraction of the benthic resources in central Chile is likely driven by an interplay of numerous socio-economic local factors that threatens the success of the fisheries management areas (MA) system. To assess this problem, the exploitation state of a commercially important benthic resource (i.e., keyhole limpet) in ...
arxiv  

Paleocene Larger Foraminifera from the Pyrenean Basin with a recalibration of the Paleocene Shallow Benthic Zones

Geologica Acta, 2020
A taxonomic study of the larger foraminifera found in Paleocene rocks from the Pyrenean basin has led to the description of sixty taxa including two new species: Alveolina korresensis and Valvulineria bacetai. In this work, we present a chronostratigraphic recalibration of the Paleocene Shallow Benthic Zones (SBZ 1 to SBZ 4) based on correlation with ...
Consorci del Museu de Ciències Naturals de Barcelona, Serra-Kiel, Josep, Vicedo, Vicent, Baceta, J.I., Bernaola, G., Robador, A.   +5 more
openaire   +13 more sources

Benthic inputs as predictors of seagrass (Posidonia oceanica) fish farm-induced decline [PDF]

arXiv, 2006
Fish farms represent a growing source of disturbance to shallow benthic ecosystems like seagrass meadows. Despite some existing insights on the mechanisms underlying decline, efficient tools to quantitatively predict the response of benthic communities to fish farm effluents have not yet been developed.
arxiv  

Benthic Microbial community responses to pesticides in lake littoral zones [PDF]

, 2011
Herbicides contamination of lake ecosystems is characterized by mixture of several molecules at low concentration. Their effect on microorganisms, especially benthic communities, is not well known. With the view of assessing the ecological risk of herbicides for aquatic microorganisms, some models (Species sensitivity distribution-SSD, Independent ...
Larras, Floriane, Bouchez, Agnes, Montuelle, Bernard   +2 more
openaire   +2 more sources

Pattern analysis in a benthic bacteria-nutrient system [PDF]

arXiv, 2014
We study pattern formation in a reaction-diffusion system for a benthic bacteria-nutrient model in a marine sediment, which originally contains some spatially varying coefficients and with these shows some layering of patterns. Using the Landau reduction for the system with homogeneous coefficients, we locally analyze Turing bifurcations in 1D and 2D ...
arxiv  

Early Miocene larger benthic foraminifera from the northwestern Tethyan Seaway (NW Iran): new findings on Shallow Benthic Zone 25. [PDF]

Int J Earth Sci, 2021
Yazdi-Moghadam M, Sarfi M, Ghasemi-Nejad E, Sadeghi A, Sharifi M.   +4 more
europepmc   +1 more source

Severity gradient of anthropogenic activities along the Egyptian Western Mediterranean coast, utilizing benthic Foraminifera as bio-indicators

Egyptian Journal of Aquatic Research, 2022
Three locations along the western Mediterranean coastal zone of Egypt (Abu Qir Bay, El Max Bay, and Marsa Matrouh), have been exposed to different anthropogenic sources that threatened the benthic ecosystem conditions.
Amani Badawi, Wafaa El-Menhawey, Mona Kh. Khalil, Suzanne E.O. Draz, Ahmed Radwan, Khaled S. Sinoussy   +5 more
doaj  

Significant benthic fluxes of bioavailable dissolved amino acids to the ocean: Results from the East/Japan Sea

Limnology and Oceanography Letters
We measured dissolved organic carbon (DOC) and total dissolved amino acid (TDAA) in seawater and sediment porewater of the Ulleung Basin in the East/Japan Sea.
Hyekyung Park, Guebuem Kim, Sung‐Han Kim, Jae Seong Lee   +3 more
doaj   +1 more source