PIXE ANALYSIS OF OTOLITHS FROM SEVERAL SPECIES OF TELEOST FISH

1994 ◽  
Vol 04 (02n03) ◽  
pp. 123-129 ◽  
Author(s):  
NOBUAKI ARAI ◽  
WATARU SAKAMOTO ◽  
KUNIKO MAEDA
Keyword(s):  
Trace Elements ◽  
Red Sea ◽  
Teleost Fish ◽  
Seawater Temperature ◽  
Trace Element Composition ◽  
Element Composition ◽  
Sea Bream ◽  
Red Sea Bream ◽  
Pixe Analysis ◽  
Fish Otoliths

In-air PIXE was used to analyze trace elements in otoliths from several species of teleost fish in order to examine the correlation between the trace elements concentrations and environmental conditions. Mn, Fe, Zn and Sr were detected accurately in the order of ppm by using the in-air PIXE. It seemed that concentrations of Sr and Zn in red sea bream otoliths increased in proportion to higher seawater temperature. In addition, there were significant differences in trace element composition between that of reared red sea bream and rockfish and that of wild ones. Preliminary results indicate that the PIXE is a powerful technique to investigate fish otoliths.

PIXE ANALYSIS OF OTOLITHS FROM REARED RED SEA BREAM, Pagrus major(Temminck et Schlegl)

1993 ◽  
Vol 03 (04) ◽  
pp. 275-281 ◽  
Author(s):  
NOBUAKI ARAI ◽  
WATARU SAKAMOTO
Keyword(s):  
Red Sea ◽  
Calcium Concentration ◽  
Seawater Temperature ◽  
Marine Fishes ◽  
Sea Bream ◽  
Red Sea Bream ◽  
Pagrus Major ◽  
Mineral Concentration ◽  
Pixe Analysis ◽  
X Ray

PIXE analysis was applied to estimate mineral concentration in red sea bream otoliths without cutting or polishing. Detected elements include Sr, Fe, Mn and Zn, which are commonly found in the otoliths in marine fishes. Strontium-Calcium concentration ratio is calculated by means of combined X-ray yields. The ratio doesn’t indicate dear correlaion with mean reared seawater temperature. It is caused by the diffraction error induced by rough topographies of the otoliths surface.

FISH OTOLITHS ANALYSIS BY PIXE: APPLICATION TO STOCK DISCRIMINATION

1995 ◽  
Vol 05 (02n03) ◽  
pp. 153-157
Author(s):  
NOBUAKI ARAI ◽  
NORIYUKI TAKAI ◽  
WATARU SAKAMOTO ◽  
KOJI YOSHIDA ◽  
KUNIKO MAEDA
Keyword(s):  
Calcium Concentration ◽  
Lake Biwa ◽  
Sea Bream ◽  
Fish Stock ◽  
Red Sea Bream ◽  
Pixe Analysis ◽  
Trace Elemental Analysis ◽  
Stock Discrimination ◽  
Trace Elemental ◽  
Fish Otoliths

Fish otoliths are continuously dsposited from fish birth to its death along with encoding environmental information. In order to decode the information, PIXE was adopted as trace elemental analysis of the otoliths. Strontium to calcium concentration ratios of red sea bream otoliths varied among rearing stations. The Sr/Ca ratios of Lake Biwa catfishes also varied between male and female and among fishing grounds. The PIXE analysis was applied to the fish stock discrimination.

scholarly journals Analysis of Trace Elements in Otoliths of Red Sea Bream Pagrus major

1995 ◽  
Vol 61 (1) ◽  
pp. 43-47 ◽  
Author(s):  
Nobuaki Arai ◽  
Wataru Sakamoto ◽  
Kuniko Maeda
Keyword(s):  
Trace Elements ◽  
Red Sea ◽  
Sea Bream ◽  
Red Sea Bream ◽  
Pagrus Major

scholarly journals Requirement of red sea bream for dietary trace elements.

1978 ◽  
Vol 44 (12) ◽  
pp. 1341-1344 ◽  
Author(s):  
Syuichi SAKAMOTO ◽  
Yasuo YONE
Keyword(s):  
Trace Elements ◽  
Red Sea ◽  
Sea Bream ◽  
Red Sea Bream

Purification, characterization, and molecular cloning of group I phospholipases A2 from the gills of the red sea bream, Pagrus major

Lipids ◽  
2000 ◽  
Vol 35 (12) ◽  
pp. 1359-1371 ◽  
Author(s):  
Noriaki Iijima ◽  
Satoshi Uchiyama ◽  
Yukichi Fujikawa ◽  
Muneharu Esaka
Keyword(s):  
Molecular Cloning ◽  
Red Sea ◽  
Sea Bream ◽  
Red Sea Bream ◽  
Pagrus Major ◽  
Phospholipases A2 ◽  
Group I
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