Seasonal variability in the lower trophic level environments of the western subtropical Pacific and Oyashio Waters—a retrospective study

2002 ◽  
Vol 49 (24-25) ◽  
pp. 5487-5512 ◽  
Author(s):  
Atsamon Limsakul ◽  
Toshiro Saino ◽  
Joaquim I Goes ◽  
Takashi Midorikawa
Keyword(s):  
Retrospective Study ◽  
Trophic Level ◽  
Seasonal Variability ◽  
Lower Trophic Level

scholarly journals Responses of lower trophic-level organisms to typhoon passage on the outer shelf of the East China Sea: an incubation experiment

2013 ◽  
Vol 10 (4) ◽  
pp. 6605-6635 ◽  
Author(s):  
N. Yasuki ◽  
K. Suzuki ◽  
A. Tsuda
Keyword(s):  
Water Column ◽  
East China Sea ◽  
Trophic Level ◽  
Outer Shelf ◽  
East China ◽  
Strong Wind ◽  
The East China Sea ◽  
Phytoplankton Productivity ◽  
China Sea ◽  
Lower Trophic Level

Abstract. Typhoons can induce vertical mixing, upwelling, or both in the water column due to strong wind stress. These events can induce phytoplankton blooms in the oligotrophic ocean after typhoon passage. However, little is known about the responses of lower trophic-level organisms or changes in the community structure following the passage of typhoons, particularly in offshore regions. Therefore, we evaluated community succession on the outer shelf of the East China Sea through on-deck bottle incubation experiments simulating hydrographic conditions after the passage of a typhoon. Under all of the experimental conditions we tested, chlorophyll a concentrations increased more than 9-fold within 6 days, and these algal cells were mainly composed of large diatoms (>10 μm). Ciliates also increased along with the diatom bloom. These results suggest that increases in diatom and ciliate populations may enhance biogenic carbon export in the water column. Typhoons can affect not only phytoplankton productivity, but also the composition of lower trophic-level organisms and biogeochemical processes in oligotrophic offshore regions.

Bioaccumulation of PCDD/Fs and Co-PCBs in Lower-Trophic-Level Organisms in Sendai Bay, Japan

2004 ◽  
Vol 159 (1) ◽  
pp. 291-312 ◽  
Author(s):  
Yutaka Okumura ◽  
Yoh Yamashita ◽  
Youichi Kohno
Keyword(s):  
Trophic Level ◽  
Lower Trophic Level ◽  
Sendai Bay

scholarly journals Seasonal variability of diet and trophic level of the gelatinous predator Pelagia noctiluca (Scyphozoa)

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Giacomo Milisenda ◽  
Sergio Rossi ◽  
Salvatrice Vizzini ◽  
Veronica L. Fuentes ◽  
Jennifer E. Purcell ◽  
...  
Keyword(s):  
Trophic Level ◽  
Seasonal Variability ◽  
Pelagia Noctiluca

Using lower trophic level factors to predict outcomes in classical biological control of insect pests

2005 ◽  
Vol 6 (6) ◽  
pp. 571-584 ◽  
Author(s):  
Paul Gross ◽  
Bradford A. Hawkins ◽  
Howard V. Cornell ◽  
Balakrishna Hosmane
Keyword(s):  
Biological Control ◽  
Trophic Level ◽  
Insect Pests ◽  
Classical Biological Control ◽  
Lower Trophic Level
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