نتایج جستجو برای: beached marine debris bmd

تعداد نتایج: 113596  

Journal: :Marine environmental research 2011
Miriam J Doyle William Watson Noelle M Bowlin Seba B Sheavly

The purpose of this study was to examine the distribution, abundance and characteristics of plastic particles in plankton samples collected routinely in Northeast Pacific ecosystems, and to contribute to the development of ideas for future research into the occurrence and impact of small plastic debris in marine pelagic ecosystems. Plastic debris particles were assessed from zooplankton samples...

Journal: :Science 2015
Jenna R Jambeck Roland Geyer Chris Wilcox Theodore R Siegler Miriam Perryman Anthony Andrady Ramani Narayan Kara Lavender Law

Plastic debris in the marine environment is widely documented, but the quantity of plastic entering the ocean from waste generated on land is unknown. By linking worldwide data on solid waste, population density, and economic status, we estimated the mass of land-based plastic waste entering the ocean. We calculate that 275 million metric tons (MT) of plastic waste was generated in 192 coastal ...

Journal: :Diseases of aquatic organisms 2012
Lisa Poppi Annalisa Zaccaroni Daniela Pasotto Giorgia Dotto Federica Marcer Dino Scaravelli Sandro Mazzariol

Leatherback sea turtles Dermochelys coriacea are regularly reported in the Mediterranean Sea but rarely reach the northern Adriatic Sea. In the summer of 2009, a well-preserved carcass of an adult female of this species was found dead along the coast of Lido di Venezia. A complete necropsy was carried out, along with evaluation of levels of tissue trace elements. The the post-mortem revealed ac...

2009
Jonathan Nott

Surveys of the physical aspects of landfalling tropical cyclones are important for at least three reasons: (a) to test the veracity of numerical surge models by comparison with topographically surveyed debris lines that mark the level of marine inundation, along with records from tide gauges; (b)to determine the relative contributions of surge, tide, wave action and wave run-up to the total mar...

2017
Bożena Graca Karolina Szewc Danuta Zakrzewska Anna Dołęga Magdalena Szczerbowska-Boruchowska

Microplastics' (particles size ≤5 mm) sources and fate in marine bottom and beach sediments of the brackish are strongly polluted Baltic Sea have been investigated. Microplastics were extracted using sodium chloride (1.2 g cm-3). Their qualitative identification was conducted using micro-Fourier-transform infrared spectroscopy (μFT-IR). Concentration of microplastics varied from 25 particles kg...

2016
Jessica A. Bryant Tara M. Clemente Donn A. Viviani Allison A. Fong Kimberley A. Thomas Paul Kemp David M. Karl Angelicque E. White Edward F. DeLong

Marine plastic debris has become a significant concern in ocean ecosystems worldwide. Little is known, however, about its influence on microbial community structure and function. In 2008, we surveyed microbial communities and metabolic activities in seawater and on plastic on an oceanographic expedition through the "great Pacific garbage patch." The concentration of plastic particles in surface...

2014
Giuseppe Masetti Brian Calder

Recognition of marine debris represents a difficult task due to the extreme variability of the marine environment, the possible targets, and the variable skill levels of human operators. The range of potential targets is much wider than similar fields of research such as mine hunting, localization of unexploded ordnance or pipeline detection. In order to address this additional complexity, an a...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2009
Murray R Gregory

Over the past five or six decades, contamination and pollution of the world's enclosed seas, coastal waters and the wider open oceans by plastics and other synthetic, non-biodegradable materials (generally known as 'marine debris') has been an ever-increasing phenomenon. The sources of these polluting materials are both land- and marine-based, their origins may be local or distant, and the envi...

2016
C. Ioakeimidis K. N. Fotopoulou H. K. Karapanagioti M. Geraga C. Zeri E. Papathanassiou F. Galgani G. Papatheodorou

The dominance and persistence of plastic debris in the marine environment are well documented. No information exists in respect to their lifespan in the marine environment. Nevertheless, the degradation potential of plastic litter items remains a critical issue for marine litter research. In the present study, polyethylene terephthalate bottles (PETs) collected from the submarine environment we...

Journal: :Environmental science & technology 2013
Erik R Zettler Tracy J Mincer Linda A Amaral-Zettler

Plastics are the most abundant form of marine debris, with global production rising and documented impacts in some marine environments, but the influence of plastic on open ocean ecosystems is poorly understood, particularly for microbial communities. Plastic marine debris (PMD) collected at multiple locations in the North Atlantic was analyzed with scanning electron microscopy (SEM) and next-g...

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