scholarly journals Microplastic pollution on island beaches, Oahu, Hawai`i

PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0247224
Author(s):  
Savannah Franklin Rey ◽  
Janet Franklin ◽  
Sergio J. Rey
Keyword(s):  
Wave Energy ◽  
Empirical Data ◽  
Hawaiian Islands ◽  
High Tide ◽  
Storm Tide ◽  
High Wave ◽  
Remote Island ◽  
High Wave Energy ◽  
Very High

We report microplastic densities on windward beaches of Oahu, Hawai`i, USA, an island that received about 6 million tourist visits a year. Microplastic densities, surveyed on six Oahu beaches, were highest on the beaches with the coarsest sands, associated with high wave energy. On those beaches, densities were very high (700–1700 particles m-2), as high as those recorded on other remote island beaches worldwide. Densities were higher at storm tide lines than high tide lines. Results from our study provide empirical data on the distribution of microplastics on the most populated and visited of the Hawaiian islands.

scholarly journals BEACH PROFILES AT TORREY PINES, CALIFORNIA

1976 ◽  
Vol 1 (15) ◽  
pp. 75 ◽  
Author(s):  
David G. Aubrey ◽  
Douglas L. Inman ◽  
Charles E. Nordstrom
Keyword(s):  
Sediment Transport ◽  
Incident Wave ◽  
Wave Energy ◽  
Energy Conditions ◽  
Beach Profile ◽  
High Wave ◽  
Wave Characteristics ◽  
Spectral Estimates ◽  
High Wave Energy ◽  
Incident Waves

Beach profiles have been measured at Torrey Pines Beach, California for four years and correlated with tides and accurate spectral estimates of the incident wave field. Characteristic equilibrium beach profiles persist for time spans of up to at least two weeks in response to periods of uniform incident waves. These changes in the beach profiles are primarily due to on-offshore sediment transport which can be related to variations in wave characteristics and tidal phase. The most rapid readjustment of the beach profile occurs during high wave energy conditions coincident with spring tides. Alternatively, the highest berm building is associated with moderate to low waves that coincide with spring tides.

SHORELINE OIL TWO YEARS AFTER AMOCO CADIZ: NEW COMPLICATIONS FROM TANIO

1981 ◽  
Vol 1981 (1) ◽  
pp. 525-534 ◽  
Author(s):  
Erich R. Gundlach ◽  
Serge Berné ◽  
Laurent D'Ozouville ◽  
Jerry A. Topinka
Keyword(s):  
Oil Spill ◽  
Wave Energy ◽  
Heavy Oil ◽  
Interstitial Water ◽  
Tidal Flats ◽  
Rocky Shores ◽  
High Wave ◽  
Spill Site ◽  
High Wave Energy

ABSTRACT The latest in a series of joint Franco-American surveys of the Amoco Cadiz (233,000 tons; March 17, 1978) spill site was conducted during May and June 1980. The purposes of this survey were to determine remaining surface oil, buried oiled sediment, oil incorporation in interstitial water, and recovery of attached macroalgae. Oil was found to persist primarily as tar blotches and black staining along exposed rocky shores and as oil-contaminated (indicated by surface sheen), interstitial water in previously heavily oiled, sheltered tidal flats. Less commonly, oil was present as asphalted sediment and oil-coated rocks in sheltered embayments. The cleaned marsh at Ile Grande remained significantly damaged from the oil; however, both upper and lower marsh grasses showed some recovery. At another marsh, no recovery occurred in uncleaned, heavily oiled areas. On sheltered rocky shores, heavily oiled algae showed rapid recolonization by Fucus; however, Ascophyllum noaosum-dominated areas showed less recovery. The Tanio oil spill on March 7, 1980 (7,000 tons lost) impacted 45 percent of the Amoco Cadiz spill site and severely complicated further differentiation of Amoco Cadiz oil in many areas. In total, 197 kilometers (km) of shoreline were impacted; 45 km were heavily oiled. Nine weeks after initial impact, Tanio oil occurred as patches of heavy oil along sheltered and exposed, rocky shores. Sand beaches and tidal flats were generally free of oil. Several hundred soldiers continued to pressure spray dispersants and water to clean up oiled areas, even in high wave energy and isolated localities.

Abundance, composition and succession of sessile subtidal assemblages in high wave-energy environments of Central Chile: Temporal and depth variation

2019 ◽  
Vol 512 ◽  
pp. 51-62
Author(s):  
Sergio A. Navarrete ◽  
Mirtala Parragué ◽  
Nicole Osiadacz ◽  
Francisca Rojas ◽  
Jessica Bonicelli ◽  
...  
Keyword(s):  
Wave Energy ◽  
Central Chile ◽  
High Wave ◽  
Depth Variation ◽  
High Wave Energy

scholarly journals WAVE OVERWASH ON A ROCK PLATFORM: REMOTE SENSING AND PRESSURE SENSOR OBSERVATIONS

2018 ◽  
pp. 29
Author(s):  
Hannah E. Power ◽  
Michael A. Kinsela ◽  
Caio E. Stringari ◽  
Murray J. Kendall ◽  
David J. Hanslow
Keyword(s):  
Remote Sensing ◽  
Wave Energy ◽  
Pressure Sensor ◽  
Rocky Shore ◽  
Sandy Beaches ◽  
High Wave ◽  
High Wave Energy ◽  
High Level ◽  
Shore Platforms ◽  
Sydney Australia

Open ocean rocky shore platforms are typically exposed to high wave energy and are often the location of recreational activities from sightseeing and walking to fishing (Kennedy et al. 2017). The exposure of these environments, combined with the use for recreation, results in a high level of risk for those who use the rock platform. In Australia, for example, 19% of coastal fatalities occur on rock coasts, most commonly when individuals fall from microtidal semi-horizontal platforms into the ocean (SLSA, 2014a,b). Managing the hazards and resultant risk on rocky shore platforms requires a different approach to that taken for sandy beaches as the sites are typically remote. Here we explore the wave overwash hazards on a remote but high visitation rocky shore platform 40 km south of Sydney, Australia.

Influence of Spacing on Mechanically Transplanted Seagrass Survival in a High Wave Energy Regime

2003 ◽  
Vol 11 (1) ◽  
pp. 56-61 ◽  
Author(s):  
Eric I. Paling ◽  
Mike van Keulen ◽  
Karen D. Wheeler ◽  
Jim Phillips ◽  
Roger Dyhrberg
Keyword(s):  
Wave Energy ◽  
High Wave ◽  
Energy Regime ◽  
High Wave Energy

ECOLOGICAL MODELING OF EMERGENT VEGETATION FOR SUSTAINING WETLANDS IN HIGH WAVE ENERGY COASTAL ENVIRONMENTS

2013 ◽  
Author(s):  
Hyun-Doug Yoon ◽  
Daniel Cox ◽  
Dennis Albert ◽  
Nobuhito Mori ◽  
Heather Smith ◽  
...  
Keyword(s):  
Wave Energy ◽  
Ecological Modeling ◽  
Emergent Vegetation ◽  
Coastal Environments ◽  
High Wave ◽  
High Wave Energy

scholarly journals Equilibrium shoreline response of a high wave energy beach

2011 ◽  
Vol 116 (C4) ◽  
Author(s):  
M. L. Yates ◽  
R. T. Guza ◽  
W. C. O'Reilly ◽  
J. E. Hansen ◽  
P. L. Barnard
Keyword(s):  
Wave Energy ◽  
High Wave ◽  
High Wave Energy
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