Autumn Migration of Mythimna separata (Lepidoptera: Noctuidae) over the Bohai Sea in Northern China

2008 ◽  
Vol 37 (3) ◽  
pp. 774-781 ◽  
Author(s):  
H.-Q. Feng ◽  
X.-C. Zhao ◽  
X.-F. Wu ◽  
B. Wu ◽  
K.-M. Wu ◽  
...  
Keyword(s):  
Bohai Sea ◽  
Northern China ◽  
Autumn Migration ◽  
Mythimna Separata ◽  
The Bohai Sea ◽  
Lepidoptera Noctuidae

Autumn Migration of Mythimna separata (Lepidoptera: Noctuidae) over the Bohai Sea in Northern China

2008 ◽  
Vol 37 (3) ◽  
pp. 774-781 ◽  
Author(s):  
Hong-Qiang Feng ◽  
Xin-Cheng Zhao ◽  
Xian-Fu Wu ◽  
Bo Wu ◽  
Kong-Ming Wu ◽  
...  
Keyword(s):  
Bohai Sea ◽  
Northern China ◽  
Autumn Migration ◽  
Mythimna Separata ◽  
The Bohai Sea ◽  
Lepidoptera Noctuidae

scholarly journals Migration of invasive Spodoptera frugiperda (Lepidoptera: Noctuidae) across the Bohai Sea in northern China

2021 ◽  
Vol 20 (3) ◽  
pp. 685-693
Author(s):  
Hui-ru JIA ◽  
Jiang-long GUO ◽  
Qiu-lin WU ◽  
Chao-xing HU ◽  
Xiao-kang LI ◽  
...  
Keyword(s):  
Spodoptera Frugiperda ◽  
Bohai Sea ◽  
Northern China ◽  
The Bohai Sea ◽  
Lepidoptera Noctuidae

Seasonal Migration of Ctenoplusia agnata (Lepidoptera: Noctuidae) Over the Bohai Sea in Northern China

2014 ◽  
Vol 107 (3) ◽  
pp. 1003-1008 ◽  
Author(s):  
Chao Li ◽  
Xiaowei Fu ◽  
Hongqiang Feng ◽  
Abid Ali ◽  
Chuanren Li ◽  
...  
Keyword(s):  
Bohai Sea ◽  
Northern China ◽  
Seasonal Migration ◽  
The Bohai Sea ◽  
Lepidoptera Noctuidae

Sea-level changes in the Bohai Sea, northern China, constrained by coastal loess accumulation over the past 200 ka

2022 ◽  
Vol 277 ◽  
pp. 107368
Author(s):  
Shuangwen Yi ◽  
Lin Zeng ◽  
Zhiwei Xu ◽  
Yao Wang ◽  
Xianyan Wang ◽  
...  
Keyword(s):  
Sea Level ◽  
Bohai Sea ◽  
Northern China ◽  
Sea Level Changes ◽  
The Bohai Sea ◽  
The Past

Response of antioxidant enzymes in Mythimna separata (Lepidoptera: Noctuidae) exposed to thermal stress

2016 ◽  
Vol 107 (3) ◽  
pp. 382-390 ◽  
Author(s):  
A. Ali ◽  
M. A. Rashid ◽  
Q. Y. Huang ◽  
C. Wong ◽  
C.-L. Lei
Keyword(s):  
Antioxidant Enzymes ◽  
Thermal Stress ◽  
Oxidative Damage ◽  
High Temperatures ◽  
Stress Responses ◽  
Physiological Stress ◽  
Southern China ◽  
Northern China ◽  
Mythimna Separata ◽  
Lepidoptera Noctuidae

AbstractThe oriental army worm Mythimna separata (Lepidoptera: Noctuidae) is a migratory pest in Eastern Asia and China. Seasonal high temperatures in Southern China and low temperatures in Northern China are pressures favouring the annual migration of this species, while cold tolerance determines the northern limit of its overwintering range. A number of physiological stress responses occur in insects as a result of variations in temperature. One reaction to thermal stress is the generation of reactive oxygen species (ROS), which can be harmful by causing oxidative damage. The time-related effects (durations of 1, 4 and 7 h) of thermal stress treatments of M. separata at comparatively low (5, 10, 15 and 20°C) and high (30, 35, 40 and 45°C) temperatures on the activities of antioxidant enzymes, including superoxide dismutase (SOD), catalase (CAT), peroxidase (POX) and glutathione S-transferases (GSTs), and total antioxidant capacity (T-AOC) were determined. Thermal stress resulted in significant elevation of the activities of SOD, CAT and GSTs, indicating that these enzymes contribute to defence mechanisms counteracting oxidative damage caused by an increase in ROS. However, at high-temperatures, POX and T-AOC were also found to contribute to scavenging ROS. Our results also indicate that extreme temperatures lead to elevated ROS production in M. separata. The present study confirms that thermal stress can be responsible for oxidative damage. To overcome such stress, antioxidant enzymes play key roles in diminishing oxidative damage in M. separata.

A new species of the genus Austinogebia Ngoc-Ho, 2001 (Crustacea, Decapoda, Gebiidea, Upogebiidae) from northern China

Zootaxa ◽  
2012 ◽  
Vol 3243 (1) ◽  
pp. 59 ◽  
Author(s):  
WENLIANG LIU ◽  
RUIYU LIU
Keyword(s):  
New Species ◽  
Bohai Sea ◽  
Northern China ◽  
Lower Margin ◽  
The Bohai Sea ◽  
A New Species

A new species of the genus Austinogebia Ngoc-Ho, 2001, A. monospina n. sp., collected from the Bohai Sea and theYellow Sea, is described and illustrated. It is closely allied to A. spinifrons (Haswell, 1881) but differs markedly in the rostral ornamentation, with one infrarostral spine and the unarmed lower margin of antennal peduncle.

Nocturnal migration of dragonflies over the Bohai Sea in northern China

2006 ◽  
Vol 31 (5) ◽  
pp. 511-520 ◽  
Author(s):  
HONG-QIANG FENG ◽  
KONG-MING WU ◽  
YUN-XIA NI ◽  
DENG-FA CHENG ◽  
YU-YUAN GUO
Keyword(s):  
Bohai Sea ◽  
Northern China ◽  
The Bohai Sea ◽  
Nocturnal Migration

Seasonal Migration of Apolygus lucorum (Hemiptera: Miridae) Over the Bohai Sea in Northern China

2014 ◽  
Vol 107 (4) ◽  
pp. 1399-1410 ◽  
Author(s):  
Xiaowei Fu ◽  
Yongqiang Liu ◽  
Chao Li ◽  
Yanhui Lu ◽  
Yunhe Li ◽  
...  
Keyword(s):  
Bohai Sea ◽  
Northern China ◽  
Seasonal Migration ◽  
The Bohai Sea ◽  
Apolygus Lucorum

scholarly journals Long-Term Changes in the Unique and Largest Seagrass Meadows in the Bohai Sea (China) Using Satellite (1974–2019) and Sonar Data: Implication for Conservation and Restorationc

2021 ◽  
Vol 13 (5) ◽  
pp. 856
Author(s):  
Shaochun Xu ◽  
Shuai Xu ◽  
Yi Zhou ◽  
Shidong Yue ◽  
Xiaomei Zhang ◽  
...  
Keyword(s):  
Large Scale ◽  
Bohai Sea ◽  
Land Reclamation ◽  
Landsat Imagery ◽  
Northern China ◽  
Physical Damage ◽  
Error Matrix ◽  
The Bohai Sea ◽  
Seagrass Meadows ◽  
Sea Reclamation

Seagrass meadows play critical roles in supporting a high level of biodiversity but are continuously threatened by human activities, such as sea reclamation. In this study, we reported on a large seagrass (Zostera marina L.) meadow in Caofeidian shoal harbor in the Bohai Sea of northern China. We evaluated the environmental impact of sea reclamation activities using Landsat imagery (1974–2019) by mapping seagrass meadow distribution changes. ISODATA was adopted for the unsupervised classification and mapping of seagrass beds. The error matrix developed using the in situ data obtained from acoustic surveys for Landsat 8OLI image classification was 87.20% accurate. The maps showed rapidly increasing changes in seagrass meadows as the amount of reclaimed land increased. Some seagrass meadows experienced large-scale changes, and sea reclamation has been suggested as the main factor responsible for habitat loss, which results from physical damage, excessive sedimentation, and increased turbidity caused by reclamation. In addition, habitat degradation may have resulted from three storm surges induced by typhoons in 1992–1998. Fortunately, land reclamation, forming an artificial “longshore bar”, buffers seagrass meadows from wave actions, providing relatively sheltered conditions, which has allowed a large habitat increase since 2012. These were the largest eelgrass meadows (3,217.32 ha), with a peripheral area of ~100 km2, in the Bohai Sea of northern China in 2019. However, the existing largest eelgrass beds in China are threatened by trawling, clam harvesting (especially clam sucking), channel dredging, and culture pond construction. Our work will help coastal managers monitor the environmental impacts of reclamation activities on seagrass meadows on a large spatio-temporal scale and will also provide information for seagrass restoration using artificial “longshore bars”.

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