scholarly journals Critical events in the Ariake Bay ecosystem: Clam population collapse, red tides, and hypoxic bottom water

2006 ◽  
Vol 1 (1) ◽  
pp. 3-25 ◽  
Author(s):  
Hiroaki Tsutsumi
Keyword(s):  
Bottom Water ◽  
Red Tides ◽  
Ariake Bay ◽  
Critical Events ◽  
Population Collapse ◽  
Clam Population

scholarly journals Red Tide Events and Seasonal Variations in the Partial Pressure of CO2 and Related Parameters in Shellfish-Farming Bays, Southeastern Coast of Korea

2021 ◽  
Vol 8 ◽  
Author(s):  
JeongHee Shim ◽  
Mi-Ju Ye ◽  
Jae-Hyun Lim ◽  
Jung-No Kwon ◽  
Jeong Bae Kim
Keyword(s):  
Carbon Cycle ◽  
Partial Pressure ◽  
Bottom Water ◽  
Red Tide ◽  
Seawater Temperature ◽  
Spatiotemporal Variability ◽  
Red Tides ◽  
Surface Seawater ◽  
Biological Production ◽  
The Mean

Mixed results have been reported on the evaluation of the coastal carbon cycle and its contribution to the global carbon cycle, mainly due to the shortage of observational data and the considerable spatiotemporal variability arising from complex biogeochemical factors. In this study, the partial pressure of carbon dioxide (pCO2) and related environmental factors were measured in the Jinhae–Geoje–Tongyeong bay region of the southeastern Korean Peninsula in February 2014, August 2014, April 2015, and October 2015. The mean pCO2 of surface seawater ranged from 215 to 471 μatm and exhibited a high correlation with the surface seawater temperature when data for August were excluded (R2 = 0.69), indicating that the seasonal variation in CO2 could be largely attributed to the variation in seawater temperature. However, a severe red tide event occurred in August 2014, when the lowest pCO2 value was observed despite a relatively high seawater temperature. It is considered that the active biological production of phytoplankton related to red tides counteracted the summer increase in pCO2. Based on the correlation between pCO2 and temperature, the estimated decrease in pCO2 caused by non-thermal factors was approximately 200 μatm. During the entire study period, the air–sea CO2 flux ranged from −14.2 to 3.7 mmol m–2 d–1, indicating that the study area served as an overall sink for atmospheric CO2, and only functioned as a weak source during October. The mean annual CO2 flux estimated from the correlation with temperature was −5.1 mmol m–2 d–1. However, because this estimate did not include reductions caused by sporadic events of biological production, such as red tides and phytoplankton blooms, the actual uptake flux is considered to be higher. The mean saturation state (ΩAr) value of carbonate aragonite was 2.61 for surface water and 2.04 for bottom water. However, the mean ΩAr of bottom water was <2 in August and October, and the ΩAr values measured at some of the bottom water stations in August were <1. Considering that the period from August to October corresponds to the reproduction and growth stages of shellfish, such low ΩAr values could be very damaging to shellfish production and the aquaculture industry.

Critical events in psychotherapy supervision: An interpersonal approach.

2005 ◽  
Author(s):  
Nicholas Ladany ◽  
Myrna L. Friedlander ◽  
Mary Lee Nelson
Keyword(s):  
Psychotherapy Supervision ◽  
Critical Events

Psychophysiological responses to emotion-antecedent appraisal of critical events in a computer game

1996 ◽  
Author(s):  
Rainer Banse ◽  
Alexandre Etter ◽  
Carien van Reekum ◽  
Klaus R. Scherer
Keyword(s):  
Computer Game ◽  
Critical Events ◽  
Psychophysiological Responses

Environmental effect on diet, fecundity and condition of an endangered fishNeosalanx reganius(Osmeriformes) in the Chikugo Estuary, in the upper Ariake Bay, Japan

2006 ◽  
Vol 19 (1) ◽  
pp. 59-68 ◽  
Author(s):  
Md. Shahidul Islam ◽  
Manabu Hibino ◽  
Taro Ohta ◽  
Kouji Nakayama ◽  
Masaru Tanaka
Keyword(s):  
Environmental Effect ◽  
Ariake Bay

OSTRACOD-BASED RECONSTRUCTION OF BOTTOM WATER CONDITIONS IN THE INNER SEA OF THE MALDIVES DURING THE PLEISTOCENE (IODP SITE U1467, NORTHERN INDIAN OCEAN)

2017 ◽  
Author(s):  
Carlos A. Alvarez Zarikian ◽  
◽  
Chimnaz Nadiri ◽  
Montserrat Alonso-Garcia ◽  
Loren Petruny ◽  
...  
Keyword(s):  
Indian Ocean ◽  
Bottom Water ◽  
Northern Indian Ocean ◽  
Water Conditions

Simulation to Assess Human Responses to Critical Events

2013 ◽  
Author(s):  
L. Jane Easdown ◽  
Arna Banerjee ◽  
Matthew B. Weinger
Keyword(s):  
Critical Events
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