Abstract
We exposed pen shells (Atrina lischkeana) to repeated periods of low-oxygen for 30 d and measured their survival, behavior, glycogen content, and organic acid concentration. Exposure to low-oxygen had no effect on survival. Animals moved upward above the sediment under low-oxygen conditions and downward under aerobic conditions, repeating these movements for 19 d. The difference in shell height above the sediment before and after low-oxygen exposure gradually decreased; after 20 d there was no significant difference. Low-oxygen exposure also resulted in a significant decrease in glycogen content and in concentrations of malate and fumarate. Thus, repeated exposure of pen shells to low-oxygen conditions reduces glycogen content, alters metabolism, and affects vertical movements, all of which may cause ecological dysfunction. We suggest that hypoxia might be one factor contributing to the collapse of pen shell resources.
| Original language | English |
|---|---|
| Pages (from-to) | 387-392 |
| Number of pages | 6 |
| Journal | Journal of the Faculty of Agriculture, Kyushu University |
| Volume | 62 |
| Issue number | 2 |
| Publication status | Published - Sep 1 2017 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Biotechnology
- Agronomy and Crop Science
Cite this
Effect of repeated Exposure to low oxygen on respiratory metabolism and vertical movements in the pen shell Atrina lischkeana. / Honda, Masato; Gunjikake, Hiroaki; Matsut, Shigeaki; Qiu, Xuchun; Shimasaki, Yohei; Oshima, Yuji.
In: Journal of the Faculty of Agriculture, Kyushu University, Vol. 62, No. 2, 01.09.2017, p. 387-392.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of repeated Exposure to low oxygen on respiratory metabolism and vertical movements in the pen shell Atrina lischkeana
AU - Honda, Masato
AU - Gunjikake, Hiroaki
AU - Matsut, Shigeaki
AU - Qiu, Xuchun
AU - Shimasaki, Yohei
AU - Oshima, Yuji
PY - 2017/9/1
Y1 - 2017/9/1
N2 - We exposed pen shells (Atrina lischkeana) to repeated periods of low-oxygen for 30 d and measured their survival, behavior, glycogen content, and organic acid concentration. Exposure to low-oxygen had no effect on survival. Animals moved upward above the sediment under low-oxygen conditions and downward under aerobic conditions, repeating these movements for 19 d. The difference in shell height above the sediment before and after low-oxygen exposure gradually decreased; after 20 d there was no significant difference. Low-oxygen exposure also resulted in a significant decrease in glycogen content and in concentrations of malate and fumarate. Thus, repeated exposure of pen shells to low-oxygen conditions reduces glycogen content, alters metabolism, and affects vertical movements, all of which may cause ecological dysfunction. We suggest that hypoxia might be one factor contributing to the collapse of pen shell resources.
AB - We exposed pen shells (Atrina lischkeana) to repeated periods of low-oxygen for 30 d and measured their survival, behavior, glycogen content, and organic acid concentration. Exposure to low-oxygen had no effect on survival. Animals moved upward above the sediment under low-oxygen conditions and downward under aerobic conditions, repeating these movements for 19 d. The difference in shell height above the sediment before and after low-oxygen exposure gradually decreased; after 20 d there was no significant difference. Low-oxygen exposure also resulted in a significant decrease in glycogen content and in concentrations of malate and fumarate. Thus, repeated exposure of pen shells to low-oxygen conditions reduces glycogen content, alters metabolism, and affects vertical movements, all of which may cause ecological dysfunction. We suggest that hypoxia might be one factor contributing to the collapse of pen shell resources.
UR - http://www.scopus.com/inward/record.url?scp=85034581190&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85034581190&partnerID=8YFLogxK
M3 - Article
VL - 62
SP - 387
EP - 392
JO - Journal of the Faculty of Agriculture, Kyushu University
JF - Journal of the Faculty of Agriculture, Kyushu University
SN - 0023-6152
IS - 2
ER -