scholarly journals Estimated distribution and biomass of a submerged macrophyte community in Lake Biwa's South Basin using an echo-sounder

2004 ◽  
Vol 65 (1) ◽  
pp. 13-20 ◽  
Author(s):  
Taisuke OHTSUKA ◽  
Yasunori KUWABARA ◽  
Hiroki HAGA
Keyword(s):  
Submerged Macrophyte ◽  
South Basin ◽  
Macrophyte Community ◽  
Echo Sounder

scholarly journals Preliminary study on recovery and optimization of submerged macrophyte community in Lake Erhai, China

2021 ◽  
Vol 33 (6) ◽  
pp. 1777-1787
Author(s):  
Yang Tong ◽  
◽  
Yuan Changbo ◽  
Cao Te ◽  
Wen Zihao ◽  
...  
Keyword(s):  
Submerged Macrophyte ◽  
Macrophyte Community ◽  
Lake Erhai ◽  
Preliminary Study

scholarly journals The role of hydrodynamics in structuring in situ ammonium uptake within a submerged macrophyte community

2013 ◽  
Vol 3 (1) ◽  
pp. 210-224 ◽  
Author(s):  
Edward P. Morris ◽  
Gloria Peralta ◽  
Tom Van Engeland ◽  
Tjeerd J. Bouma ◽  
Fernando G. Brun ◽  
...  
Keyword(s):  
Submerged Macrophyte ◽  
Ammonium Uptake ◽  
Macrophyte Community

scholarly journals The importance of environmental variables for submerged macrophyte community assemblage and coverage in shallow lakes: differences between northern and southern Europe

Hydrobiologia ◽  
2014 ◽  
Vol 744 (1) ◽  
pp. 49-61 ◽  
Author(s):  
Torben L. Lauridsen ◽  
Erik Jeppesen ◽  
Steven A. J. Declerck ◽  
Luc De Meester ◽  
Jose M. Conde-Porcuna ◽  
...  
Keyword(s):  
Shallow Lakes ◽  
Environmental Variables ◽  
Submerged Macrophyte ◽  
Southern Europe ◽  
Community Assemblage ◽  
Macrophyte Community

QUANTIFICATION OF TUNA FISH TARGET STRENGTH USING QUANTITATIVE ECHO SOUNDER

2009 ◽  
Vol 1 (1) ◽  
Author(s):  
Henry M. Manik
Keyword(s):  
Wave Reflection ◽  
Fork Length ◽  
Research Programme ◽  
Yellowfin Tuna ◽  
Target Strength ◽  
Bigeye Tuna ◽  
Tuna Fish ◽  
Thunnus Obesus ◽  
The Relationship ◽  
Echo Sounder

A preliminary research programme was carried out in order to study the acoustic wave reflection or target strength (TS) of tuna fish using a quantitative echo sounder (QES). The relationships between TS to fork length (FL) and swimbladder volume, for bigeye tuna (Thunnus obesus) and yellowfin tuna (T. albacares) are investigated. The TS of bigeye tuna was about 3 dB higher than yellowfin tuna when comparing species at the same size. The result can be correlated to the swimbladder volume differencebetween species. The relationship between TS and swimbladder volume was quantified for both species.Keywords: tuna fish, target strength, quantitative echo sounder

Sign in / Sign up

Export Citation Format

Share Document