NOAA satellite and air-borne sensing of a small-scale, coastal tidal jet

1985 ◽  
Vol 36 (5) ◽  
pp. 643 ◽  
Author(s):  
CJ Hearn ◽  
AF Pearce
Keyword(s):  
Satellite Image ◽  
Late Summer ◽  
Field Studies ◽  
Small Scale ◽  
Late Winter ◽  
Late Afternoon ◽  
Satellite Pass ◽  
South West ◽  
Extensive Field ◽  
South West Coast

Koombana Bay, on the south-west coast of Australia, contains a tidal jet that emanates from Leschenault Inlet via a man-made channel 150 m wide. The tides are of mixed diurnal-semidiurnal character. The strongest jets are induced by the diurnal tide and flow at night in summer and during daytime in winter. The duration of the discharge is about 9 h, after which the maximum length of the jet is a few kilometres. Extensive field studies together with numerical and analytical modelling have recently been completed on the jet. These allowed predictions of optimum times for viewing the jet via an air-borne thermal scanner aboard the CSIRO Fokker F27 aircraft, and a NOAA7 satellite image. The air-borne image mapped the late-summer jet, which consisted of night-cooled water from the shallow Inlet. Because the satellite pass occurs in late afternoon, the seasonality of the tide limits visibility of the jet in the imagery to late winter. The NOAA7 image shows a jet composed of warm water that has been heated during the day inside the Inlet. These observations confirm the sea data and model results and are believed to be the first use of NOAA imagery to resolve a coastal oceanographic feature of this scale.

Formal versus informal: Insights into the credit transactions of small-scale fishers along the south west coast of India

Marine Policy ◽  
2019 ◽  
Vol 103 ◽  
pp. 101-112 ◽  
Author(s):  
Shinoj Parappurathu ◽  
C. Ramachandran ◽  
K.K. Baiju ◽  
Antony Kurisunkal Xavier
Keyword(s):  
West Coast ◽  
Small Scale ◽  
The South ◽  
West Coast Of India ◽  
South West ◽  
South West Coast

Weight-length relationships for selected fish species of the small-scale demersal fisheries of the south and south-west coast of Portugal

1997 ◽  
Vol 30 (3) ◽  
pp. 253-256 ◽  
Author(s):  
J.M.S. Gonçalves ◽  
L. Bentes ◽  
P.G. Lino ◽  
J. Ribeiro ◽  
A.V.M. Canário ◽  
...  
Keyword(s):  
Fish Species ◽  
West Coast ◽  
Small Scale ◽  
The South ◽  
South West ◽  
South West Coast

scholarly journals Seasonal population dynamics of Octopus vulgaris in the eastern Mediterranean

2006 ◽  
Vol 63 (1) ◽  
pp. 151-160 ◽  
Author(s):  
Stelios Katsanevakis ◽  
George Verriopoulos
Keyword(s):  
Eastern Mediterranean ◽  
Late Summer ◽  
Main Peak ◽  
Octopus Vulgaris ◽  
Late Winter ◽  
Visual Census ◽  
The Common ◽  
Specific Growth Rates ◽  
Seasonal Population ◽  
Seasonal Population Dynamics

Abstract The population density of Octopus vulgaris was measured by visual census with scuba diving in coastal areas in Greece (eastern Mediterranean). A time-variant, stage-classified, matrix population model was developed to interpret the seasonal variation of octopus stage densities and to estimate several life cycle parameters. An annual and a semi-annual periodic cycle were found in the stage densities. A main peak of benthic settlement was observed during summer and a secondary, irregular one during late autumn. Two spawning peaks were estimated, a main one during late winter–spring and a secondary one during late summer–early autumn. More than 50% of the just-settled individuals will eventually die after 3 months. Mortality rate declines, as individuals grow larger, reaches a minimum approximately 6 months after settlement, and then grows again probably because of terminal spawning. The life expectancy of recently settled individuals (<50 g) during their summer peak is approximately 5 months. The lifespan of the common octopus is estimated to be between 12 and 15 months. The octopuses' mean specific growth rates (±s.d.) in their natural environment were 1.61 ± 0.30 d−1 for 50–200 g individuals and 1.19 ± 0.31 d−1 for 200–500 g individuals.

Meteorological aspects of mud bank formation along south west coast of India

2013 ◽  
Vol 65 ◽  
pp. 45-51 ◽  
Author(s):  
Asha S. Philip ◽  
C.A. Babu ◽  
P.V. Hareeshkumar
Keyword(s):  
West Coast ◽  
West Coast Of India ◽  
South West ◽  
South West Coast ◽  
Mud Bank

Inter-annual and seasonal dynamics of amino acid, mineral and vitamin composition of silver belly Leiognathus splendens

2014 ◽  
Vol 95 (4) ◽  
pp. 817-828 ◽  
Author(s):  
Kajal Chakraborty ◽  
Deepu Joseph
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Protein Content ◽  
West Coast ◽  
Sensor Data ◽  
The South ◽  
Post Monsoon ◽  
South West ◽  
South West Coast ◽  
Protein Amino Acids

Silver bellies, Leiognathus splendens were studied for their spatial (south-west and south-east coasts of India), annual (2008–2011) and seasonal (pre-monsoon, monsoon and post-monsoon) variations of protein, amino acids, vitamins and minerals. The monthly mean Sea Viewing Wide Field-of-view Sensor data for the period from January 2008 to December 2011 were taken into account to indicate the distribution of the photosynthetic pigment chlorophyll-a to test the hypothesis that surface productivity might be related to nutritional biochemistry of this species. The four year average total protein content and chlorophyll-a showed good correlation during monsoon on the south-west coast and monsoon/post-monsoon on the south-east coast, suggesting that the protein content is prejudiced by the chlorophyll-a concentration. Amino acid scores observed monsoon maxima along the south-west and south-east coasts. Significant seasonal variations in vitamin content were observed at the study locations with high content of vitamins D3, E, K1 and C on the south-west coast. Na content was maximal during pre-monsoon on the south-west coast, while post-monsoon maxima of Ca and K content were observed. The Fe, Mn and Zn were abundant in the samples collected from the south-west coast. The concentration of Se exhibited maximum values post-monsoon along the south-west and south-east coasts. The present study demonstrated L. splendens as a valuable source of the protein, amino acids, minerals and vitamins, showing that this low-value species is a good source of well balanced proteins with high biological value to be qualified as a preferred healthy food for human consumption.

Comparison of Lipid Profile in Three Species of Myctophids from the South West Coast of Kerala, India

2014 ◽  
Vol 37 (1) ◽  
pp. 33-37 ◽  
Author(s):  
Libin Baby ◽  
Thazhakot Vasunambisan Sankar ◽  
Rangasamy Anandan
Keyword(s):  
Lipid Profile ◽  
West Coast ◽  
The South ◽  
South West ◽  
South West Coast

Seasonal and inter-annual lipid dynamics of spiny cheek grouper (Epinephelus diacanthus) in the southern coast of India

2014 ◽  
Vol 94 (8) ◽  
pp. 1677-1686 ◽  
Author(s):  
Kajal Chakraborty ◽  
Deepu Joseph ◽  
Selsa Jose Chakkalakal
Keyword(s):  
Fatty Acids ◽  
West Coast ◽  
Arabian Sea ◽  
The South ◽  
Human Diet ◽  
Post Monsoon ◽  
Lipid Dynamics ◽  
South West ◽  
Acid Ratio ◽  
South West Coast

The muscle lipid, fatty acids and total cholesterol profiles of the spiny cheek grouper, Epinephelus diacanthus, collected from south-west (Arabian Sea) and south-east coasts (Bay of Bengal) of India were evaluated over four years (2008–2011) with regard to three seasons (pre-monsoon, monsoon and post-monsoon). Fatty acids were correlated with chlorophyll-a concentration and sea surface temperature. Lipid content, total polyunsaturated, eicosapentaenoic and docosahexaenoic fatty acids of the samples from the south-west coast showed positive correlation with chlorophyll-a concentration during the monsoon (r2 = 0.93, 0.97, 0.97 and 0.99, respectively). Higher hypocholesterolaemic/hypercholesterolaemic ratio (>1.0) and low atherogenic (<1.2), thrombogenicity (≤0.6) indices make the groupers collected from the coast of the Arabian Sea a valued candidate species for human nutrition. High levels of n-3 fatty acids (>19% during post-monsoon), important in the human diet for their platelet anti-aggregating and blood pressure-reducing properties, for groupers collected from the south-west coast, with higher n-3/n-6 fatty acid ratio (>5.1) proved this species from the coast of the Arabian Sea to be a desirable item in the human diet.

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