The distribution of the strandline fauna of sandy beaches on the east coast of Tasmania

1999 ◽  
pp. 138-146
Author(s):  
A. M. M. Richardson ◽  
C. J. Shepherd ◽  
R. Swain
Keyword(s):  
East Coast ◽  
Sandy Beaches

scholarly journals Expanding walls and shrinking beaches: loss of natural coastline in Okinawa Island, Japan

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7520 ◽  
Author(s):  
Giovanni Diego Masucci ◽  
James D. Reimer
Keyword(s):  
East Coast ◽  
Land Reclamation ◽  
Sandy Beaches ◽  
Vector Data ◽  
Construction Work ◽  
Okinawa Island ◽  
Island Habitat ◽  
Reference Map ◽  
Post War ◽  
Land Filling

Okinawa is the largest and most populated island of the Ryukyu Archipelago in southern Japan and is renowned for its natural resources and beauty. Similar as to what has been happening in the rest of the country, Okinawa Island has been affected by an increasing amount of development and construction work. The trend has been particularly acute after reversion to Japanese sovereignty in 1972, following 27 years of post-war American administration. A coastline once characterized by extended sandy beaches surrounded by coral reefs now includes tracts delimited by seawalls, revetments, and other human-made hardening structures. Additionally, part of coastal Okinawa Island was obtained by land-filling shallow ocean areas (land reclamation). Nevertheless, the current extension of the artificial coastline, as well as the level of fragmentation of the natural coastline are unclear, due to the lack of both published studies and easily accessible and updated datasets. The aims of this research were to quantify the extension of coastline alterations in Okinawa Island, including the amount of land-filling performed over the last 41 years, and to describe the coastlines that have been altered the most as well as those that are still relatively pristine. The analyses were performed using a reference map of Okinawa Island based on GIS vector data extracted from the OpenStreetMap (OSM) coastline dataset (average node distance for Okinawa Island = 24 m), in addition to satellite and aerial photography from multiple providers. We measured 431.8 km of altered coastline, equal to about 63% of the total length of coastline in Okinawa Island. Habitat fragmentation is also an issue as the remaining natural coastline was broken into 239 distinct tracts (mean length = 1.05 km). Finally, 21.03 km2 of the island’s surface were of land reclaimed over the last 41 years. The west coast has been altered the most, while the east coast is in relatively more natural conditions, particularly the northern part, which has the largest amount of uninterrupted natural coastline. Given the importance of the ecosystem services that coastal and marine ecosystems provide to local populations of subtropical islands, including significant economic income from tourism, conservation of remaining natural coastlines should be given high priority.

Two new marine fungi from China and Singapore, with the description of a new genus, Sablecola (Halosphaeriales, Ascomycota)

2004 ◽  
Vol 82 (4) ◽  
pp. 485-490 ◽  
Author(s):  
Ka-Lai Pang ◽  
EB Gareth Jones ◽  
Lilian LP Vrijmoed
Keyword(s):  
Brackish Water ◽  
New Genus ◽  
East Coast ◽  
Marine Fungi ◽  
Southern China ◽  
River Estuary ◽  
Pearl River Estuary ◽  
Sandy Beaches ◽  
Pearl River ◽  
The Pearl River

Two new marine fungi from woody substrata collected on sandy beaches of the Pearl River Estuary in southern China (brackish water) and the East Coast Beach in Singapore (fully saline seawater) are described. A new genus, Sablecola E.B.G. Jones, K.L. Pang & Vrijmoed, is introduced to accommodate Sablecola chinensis E.B.G. Jones, K.L. Pang & Vrijmoed, sp. nov, with ascospores having two polar and four equatorial, flattened, attenuate, strap-like appendages with parallel striations, which disintegrate into fine threads when mounted in seawater. Sablecola chinensis can be differentiated from other taxa with a similar ascospore appendage arrangement, such as Halosphaeria and Ocostaspora, by its ascospore appendage morphology. Remispora minuta E.B.G. Jones, K.L. Pang & Vrijmoed, sp. nov. has hyaline and membranous ascomata bearing ascospores with moustache-shaped appendages that are characteristic of Remispora species. This species cannot be accommodated in Haligena, a genus with spoon-shaped appendages at the point of attachment to the ascospores, which are attenuate and channelled.Key words: Haligena, marine fungi, Ocostaspora, Remispora, taxonomy.

scholarly journals Polychaetes of commercial interest from the Mediterranean East Coast of Algeria

2010 ◽  
Vol 11 (1) ◽  
pp. 185 ◽  
Author(s):  
M. YOUNSI ◽  
T. DAAS ◽  
O. DAAS ◽  
P. SCAPS
Keyword(s):  
East Coast ◽  
Sea Water ◽  
Water Solution ◽  
Natural Populations ◽  
Management Plan ◽  
Sandy Beaches ◽  
Hediste Diversicolor ◽  
Intertidal Mudflats ◽  
Regulatory Management ◽  
Algal Mat

Three species of polychaetous annelids are commercially collected, as baits, from natural populations along the coast of Algeria. They are collected by semi-professional bait harvesters supplying a variety of local outlets and are used as bait by local fishermen. Bait harvesters commonly use bleaching liquid (10% in sea water) or a KMnO4 (0.5 to 1% in sea water) solution to force Perinereis cultrifera (Nereididae) individuals out of their algal mat. Hediste diversicolor (Nereididae) and Scolelepis squamata(Spionidae) are dug from intertidal mudflats and sandy beaches. Commercial prices and ways of utilization are given for each species. The necessity for the legislative establishment of a regulatory management plan for worm angling is demonstrated.

Language and Literacy Predictors of Dialect Density Among School-Age African American Children From Two Geographic Regions

2020 ◽  
Vol 51 (3) ◽  
pp. 807-820
Author(s):  
Lena G. Caesar ◽  
Marie Kerins
Keyword(s):  
African American ◽  
Multiple Regression ◽  
Oral Language ◽  
East Coast ◽  
Geographic Region ◽  
Literacy Skills ◽  
School Age ◽  
Regression Analyses ◽  
Geographic Regions ◽  
American Children

Purpose The purpose of this study was to investigate the relationship between oral language, literacy skills, age, and dialect density (DD) of African American children residing in two different geographical regions of the United States (East Coast and Midwest). Method Data were obtained from 64 African American school-age children between the ages of 7 and 12 years from two geographic regions. Children were assessed using a combination of standardized tests and narrative samples elicited from wordless picture books. Bivariate correlation and multiple regression analyses were used to determine relationships to and relative contributions of oral language, literacy, age, and geographic region to DD. Results Results of correlation analyses demonstrated a negative relationship between DD measures and children's literacy skills. Age-related findings between geographic regions indicated that the younger sample from the Midwest outscored the East Coast sample in reading comprehension and sentence complexity. Multiple regression analyses identified five variables (i.e., geographic region, age, mean length of utterance in morphemes, reading fluency, and phonological awareness) that accounted for 31% of the variance of children's DD—with geographic region emerging as the strongest predictor. Conclusions As in previous studies, the current study found an inverse relationship between DD and several literacy measures. Importantly, geographic region emerged as a strong predictor of DD. This finding highlights the need for a further study that goes beyond the mere description of relationships to comparing geographic regions and specifically focusing on racial composition, poverty, and school success measures through direct data collection.

Narrative of an Expedition to the East Coast of Greenland

2009 ◽  
Author(s):  
Wilhelm August Graah ◽  
George Gordon Macdougall
Keyword(s):  
East Coast

PASTURE ESTABLISHMENT ON EAST COAST NORTH ISLAND HILL COUNTRY

1984 ◽  
pp. 216-218
Author(s):  
B.J. Arnst ◽  
O.L. Park
Keyword(s):  
White Clover ◽  
Carrying Capacity ◽  
Return On Investment ◽  
East Coast ◽  
Close Association ◽  
Development Programme ◽  
Low Fertility ◽  
Stock Management ◽  
Hill Country

Large areas of North Island hill country are producing below potential as a result of low fertility and poor pasture composition. Removal of undesirable species and replacement with a higher producing pasture is essential for increased productivity but is difficult to achieve. A development programme is described where the use of glyphosate in close association with oversowing and stock management has allowed rapid pasture establishment, marked increase in carrying capacity and a quick return on investment. Keywords: Pasture establishment, glyphosate, oversowing, white clover, subdivision, productivity.

Sign in / Sign up

Export Citation Format

Share Document