نتایج جستجو برای: intertidal environment

تعداد نتایج: 522601  

2013
Jotaro Urabe Takao Suzuki Tatsuki Nishita Wataru Makino

Following the Great East Japan Earthquake in 2011, a large tsunami developed and struck the Pacific coast of eastern Japan. To assess the immediate impacts of the tsunami on coastal communities, changes in taxon composition and richness of macrobenthic animals before and after the tsunami were examined at nine intertidal flats in Sendai Bay and the Sanriku Ria coast. The results showed that 30-...

2008
William L. Ellis Susan S. Bell

The vegetated intertidal zone has long been acknowledged as an important habitat for fish, but our understanding of the dynamics of intertidal migrations by these fish is limited. Using in situ video recordings, we examined fish movements into and out of the waterward margin of a fringing mangrove forest during spring tides at 27 haphazardly chosen sites throughout the Rookery Bay National Estu...

2013
Johannes Teuchies Wouter Vandenbruwaene Roos Carpentier Lieven Bervoets Stijn Temmerman Chen Wang Tom Maris Tom J. S. Cox Alexander Van Braeckel Patrick Meire

Flux calculations demonstrate that many estuaries are natural filters for trace metals. Yet, the underlying processes are poorly investigated. In the present study, it was hypothesized that intertidal marshes contribute significantly to the contaminant filter function of estuaries. Trace metal concentrations and sediment characteristics were measured along a transect from the subtidal, over an ...

2014
Kathryn L. Van Alstyne Theresa K. Olson

Accurate measurements of surface temperatures with an infrared (IR) thermometer require input of the emissivities of the surfaces being measured; however, few determinations of the emissivities of intertidal organisms' surfaces have been made. Emissivities of intertidal macroalgae were measured to determine whether algal species, measurement angle, hydration, and layering affected them. Emissiv...

2012
Deirdre Roberts

approved: Bruce Menge I examined heat-shock protein (HSP) expression patterns in field-acclimatized and lab-acclimated individuals in a natural population of intertidal mussels, Mytilus californianus, from the central Oregon coast. Total 70 kDa class heat-shock protein (Hsp70) levels and HSP induction profiles were measured in field-collected M californianus, seasonally, at high and low interti...

2008
MATTHEW E. KIMBALL

Large-scale marsh restoration efforts were conducted to restore normal salt marsh structure and function to degraded marshes (i.e., former salt hay farms) in the mesohaline lower Delaware Bay. While nekton response has been previously evaluated for the marsh surface and subtidal creeks in these marshes, little effort has been focused on intertidal creeks. Nekton response in intertidal creeks wa...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2008
Carolyn M Kurle Donald A Croll Bernie R Tershy

It is widely recognized that trophic interactions structure ecological communities, but their effects are usually only demonstrated on a small scale. As a result, landscape-level documentations of trophic cascades that alter entire communities are scarce. Islands invaded by animals provide natural experiment opportunities both to measure general trophic effects across large spatial scales and t...

Journal: :Revista de biologia tropical 2001
H K Dean

Eleven species of Capitellidae (Annelida: Polychaeta) belonging to eight genera are reported from the subtidal and intertidal of the Pacific Coast of Costa Rica. Three species, Mediomastus ambiseta, M. californiensis and Notomastus hemipodus, are found in highest abundances and are widespread in subtidal and intertidal environments. A taxonomic key to these species is included.

2017
Ana P. Avó Tim J. Daniell Roy Neilson Solange Oliveira Jordana Branco Helena Adão

Citation: Avó AP, Daniell TJ, Neilson R, Oliveira S, Branco J and Adão H (2017) DNA Barcoding and Morphological Identification of Benthic Nematodes Assemblages of Estuarine Intertidal Sediments: Advances in Molecular Tools for Biodiversity Assessment. Front. Mar. Sci. 4:66. doi: 10.3389/fmars.2017.00066 DNA Barcoding and Morphological Identification of Benthic Nematodes Assemblages of Estuarine...

2014
Vijaikrishnah Elango Marilany Urbano Kendall R. Lemelle John H. Pardue

Unique oil:sand aggregates, termed surface residue balls (SRBs), were formed on coastal headland beaches along the northern Gulf of Mexico as emulsified MC252 crude oil mixed with sand following the Deepwater Horizon spill event. The objective of this study is to assess the biodegradation potential of crude oil components in these aggregates using multiple lines of evidence on a heavily-impacte...

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