Population structure, residency, and abundance of whale sharks in the coastal waters off Nosy Be, north‐western Madagascar

2021 ◽  
Author(s):  
Stella Diamant ◽  
Simon J. Pierce ◽  
Christoph A. Rohner ◽  
Rachel T. Graham ◽  
Arthur Guillemain d'Echon ◽  
...  
Keyword(s):  
Population Structure ◽  
Coastal Waters ◽  
Whale Sharks ◽  
North Western

scholarly journals Assessment of ecological state of the Posyet Bay (the Sea of Japan) by heavy metals content in brown algae

2017 ◽  
Vol 6 (2) ◽  
pp. 91-95
Author(s):  
Nadezhda Konstantinovna Khristoforova ◽  
Anna Dmitrievna Kobzar
Keyword(s):  
Heavy Metals ◽  
Sea Of Japan ◽  
Coastal Waters ◽  
Atmospheric Transport ◽  
The Sea Of Japan ◽  
High Concentration ◽  
The North ◽  
Recreational Pressure ◽  
North Western ◽  
Sargassum Miyabei

The paper contains the study of heavy metals in three species - Sargassum miyabei , Sargassum pallidum , Cystoseira crassipes in the coastal waters of the Posyet Bay. The analysis of the spatial distribution of trace elements revealed the highest contents of zinc, copper and nickel in the Troitsa Bight, due to recreational pressure and a high concentration of nickel and cadmium in Sivuchya Bight that was caused by transboundary atmospheric transport. All of detected concentrations exceed natural background values for the North-Western part of the Sea of Japan. The authors show that there has been a distinct change in the environmental situation in the the Posyet Bay since 1998: the concentration of lead has sharply decreased, the content of zinc, copper and cadmium has decreased, it could be connected with influence reduction in the free economic zone, located on the Chinese side on the Tumannaya River.

Distribution of seabirds at sea in the Gulf of Carpentaria, Australia

1994 ◽  
Vol 45 (3) ◽  
pp. 445 ◽  
Author(s):  
SJM Blaber ◽  
DA Milton
Keyword(s):  
Food Availability ◽  
Coastal Waters ◽  
Common Tern ◽  
Terrestrial Species ◽  
Water Currents ◽  
The Common ◽  
Roseate Tern ◽  
Sooty Tern ◽  
North Western ◽  
Seabirds At Sea

The distribution and abundance of seabirds was documented at sea in the Gulf of Carpentaria in December 1990 and November 1991. Of the 17 species recorded, only the crested tern, least frigatebird, brown booby and streaked shearwater were widespread. The first three species were seen mainly in coastal waters; streaked shearwaters were seen only in the central north-western gulf. The common tern, roseate tern, little tern, sooty tern, black-naped tern, common noddy and greater frigatebird were either sparsely distributed or uncommon. The list includes five terrestrial species. The distribution of the seabirds is discussed in relation to proximity to breeding and roosting sites, food availability, the effects of discards from prawn trawling, and water currents.

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