Seasonal salinty variations in Cleveland Bay, northern Queensland

1981 ◽  
Vol 32 (1) ◽  
pp. 143 ◽  
Author(s):  
T Walker
Keyword(s):  
Continental Shelf ◽  
The South ◽  
Wet Season ◽  
Evaporative Concentration ◽  
Deep Station

Weekly salinity measurements have been collected over 34 months at a 10 m deep station in Cleveland Bay. Minimum salinity during the summer wet season varied considerably from year to year and was mainly dependent on the discharge of small local rivers and the Burdekin River to the south-east. During the dry months, evaporative concentration generated a gradient of decreasing salinity from the shore across the continental shelf.

scholarly journals ICHTHYOFAUNA IN THE INNER CONTINENTAL SHELF NEXT TO THE PARANAGUÁ ESTUARINE COMPLEX, SOUTHERN BRAZIL

2021 ◽  
Vol 46 (4) ◽  
pp. 1-13
Author(s):  
Cesar SANTOS ◽  
Roberto SCHWARZ JUNIOR ◽  
Helen Audrey PICHLER ◽  
Olímpio Rafael CARDOSO ◽  
Marcelo Renato LAMOUR ◽  
...  
Keyword(s):  
Continental Shelf ◽  
Fish Assemblages ◽  
Fish Fauna ◽  
Temporal Variations ◽  
Otter Trawl ◽  
Rainfall Regime ◽  
Wet Season ◽  
Environmental Characteristics ◽  
The North ◽  
Inner Continental Shelf

The composition and structure of fish assemblages in the inner continental shelf of the Paraná State are affected by cold fronts and the rainfall regime. Data from fishing activities in this region, as well as the analysis of environmental characteristics, are the main tools available for understanding fish dynamics, under influence of increasing human activities. In order to better understand patterns and temporal variations in fish assemblages in the inner continental shelf of the Paraná State, a total of 24 double trawls were performed with an otter trawl between August 2000 and July 2001, in two sampling areas, the North area in front of the northern mouth of the Paranaguá Estuary Complex, and the South area, in front of the Leste beach. A total of 45,277 fish specimens belonging to 35 families and 97 species were caught. Sciaenidae was the most abundant family, with 37.1% of the total number of individuals caught, and with the highest richness (18 species). Statistical analyses evidenced significant differences in environmental characteristics and in fish fauna, and that both areas disturbances were observed in the fish assemblages during the dry and wet season, being more intense in the Southern area, disturbances that would be related to the shrimp fishing present in the two areas sampled in this study.

Identification of Yangtze River and Yellow River Paleochannels in South Yellow Sea Shelf

2013 ◽  
Vol 664 ◽  
pp. 27-31
Author(s):  
Zhao Jun Song ◽  
Jin Zhou ◽  
Qiao Chen ◽  
Zhen Kui Gu
Keyword(s):  
Continental Shelf ◽  
Yellow Sea ◽  
Yangtze River ◽  
Yellow River ◽  
River Sediments ◽  
The Yangtze River ◽  
South Yellow Sea ◽  
The South ◽  
Research Results ◽  
The South Yellow Sea

research of submarine paleochannels has not only a great significance in exploring the evolution of palaeoenvironment of continental shelf but also a practical application value in solving problems on disaster geology and environmental geology in the continental shelf development. Yellow River and Yangtze River both were concentrated in the northern Jiangsu to enter the South Yellow Sea Basin in the Last Glacial, playing an important role in the palaeoenvironment evolution of the South Yellow Sea. On the basis of integrating previous research results and researching a large number of shallow stratigraphic sections of paleochannels in the South Yellow Sea Shelf in detail, identification and research of Yangtze River and Yellow River paleochannels in the South Yellow Sea Shelf are carried out in this paper. Research results show that: the Yangtze River and Yellow River paleochannels in the South Yellow Sea continental shelf are significantly different in the river section, river pattern, major elements, as well as trace elements, clay minerals, carbonate content and heavy mineral assemblages in the river sediments and other aspects. These differences can be used as the evidence for identification of the Yangtze River and Yellow River paleochannels.

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