scholarly journals Factors Influencing the Interannual Variation in Biomass of Bottom-Cultured Yesso Scallop (Patinopecten yessoensis) in the Changhai Sea Area, China

2022 ◽  
Vol 8 ◽  
Author(s):  
Xueliang Nan ◽  
Hao Wei ◽  
Haiyan Zhang ◽  
Hongtao Nie
Keyword(s):  
Air Temperature ◽  
Interannual Variation ◽  
Ecosystem Model ◽  
Scientific Basis ◽  
Annual Growth Rate ◽  
Early Winter ◽  
Patinopecten Yessoensis ◽  
Bottom Water Temperature ◽  
Yesso Scallop ◽  
Sea Area

Understanding how environmental factors impact the interannual variation in scallop growth and subsequently developing an easily obtained parameter to indicate this variation could provide a scientific basis for optimizing their aquaculture. In this study, we have set a growth scenario of uniformly sowed scallops of the same initial size in the Changhai sea area. The Yesso scallop culture ecosystem model was used to simulate the growth of bottom-cultured Yesso scallop each year from December 1, 2006 to November 30, 2017. The results show that the annual growth rate was higher in the northwest than in the southeast, and there were obvious high-value areas near the islands. The scallop biomass was significantly lower in 2009–2010 and reached its highest point in 2013–2014. Based on the match-mismatch conditions of bottom-water temperature, food availability, and the Yesso scallop growth process, three factors were determined: suitable growth days (SGD), restricted growth days (RGD), and food accumulation (FA). Subsequently, a multiple regression relationship was proposed with scallop biomass to explore the reasons affecting the interannual variations in scallop growth. We found that the anomaly of the contribution of SGD and FA for the scallop growth was small, and the interannual variation in scallop biomass was mainly regulated by RGD in winter. Our results indicated that the interannual variation in RGD in winter was closely related to the regional averaged air temperature in early winter. The air temperature in early winter is easily obtained in practice. Consequently, it could be used to predict the interannual growth of bottom-cultured scallops to improve aquaculture planning and management.

Effects of Pseudoalteromonas espejiana W115 on Enzyme Activity and Disease Resistance of the Yesso Scallop Patinopecten yessoensis

2019 ◽  
Vol 38 (3) ◽  
pp. 581
Author(s):  
Yuexin Ma ◽  
Jichen Liu ◽  
Ming Li ◽  
Wei Tao ◽  
Zhenlin Hao ◽  
...  
Keyword(s):  
Enzyme Activity ◽  
Disease Resistance ◽  
Patinopecten Yessoensis ◽  
Yesso Scallop

Response of Yesso scallop Patinopecten yessoensis to acute temperature challenge: physiological and biochemical parameters

2018 ◽  
Vol 37 (1) ◽  
pp. 321-329 ◽  
Author(s):  
Weiwei Jiang ◽  
Meirong Du ◽  
Jianguang Fang ◽  
Yaping Gao ◽  
Yuze Mao ◽  
...  
Keyword(s):  
Biochemical Parameters ◽  
Patinopecten Yessoensis ◽  
Yesso Scallop ◽  
Physiological And Biochemical

Identification of two secreted ferritin subunits involved in immune defense of Yesso scallop Patinopecten yessoensis

2014 ◽  
Vol 37 (1) ◽  
pp. 53-59 ◽  
Author(s):  
Yan Sun ◽  
Yueyue Zhang ◽  
Xiaoteng Fu ◽  
Ru Zhang ◽  
Jiajun Zou ◽  
...  
Keyword(s):  
Immune Defense ◽  
Patinopecten Yessoensis ◽  
Yesso Scallop

scholarly journals Regional Climate Model Simulations of U.S. Precipitation and Surface Air Temperature during 1982–2002: Interannual Variation

2007 ◽  
Vol 20 (2) ◽  
pp. 218-232 ◽  
Author(s):  
Jinhong Zhu ◽  
Xin-Zhong Liang
Keyword(s):  
Regional Climate Model ◽  
Air Temperature ◽  
Interannual Variation ◽  
Climate Model ◽  
Regional Climate ◽  
Phase Relationship ◽  
Surface Air Temperature ◽  
Department Of Energy ◽  
Precipitation Pattern ◽  
Interannual Variations

Abstract The fifth-generation Pennsylvania State University–NCAR Mesoscale Model (MM5)-based regional climate model (CMM5) capability in simulating the interannual variations of U.S. precipitation and surface air temperature during 1982–2002 is evaluated with a continuous baseline integration driven by the NCEP–Department of Energy (DOE) Second Atmospheric Model Intercomparison Project Reanalysis (R-2). It is demonstrated that the CMM5 has a pronounced downscaling skill for precipitation and temperature interannual variations. The EOF and correlation analyses illustrate that, for both quantities, the CMM5 captures the spatial pattern, temporal evolution, and circulation teleconnections much better than the R-2. In particular, the CMM5 more realistically simulates the precipitation pattern centered in the Northwest, where the representation of the orographic enhancement by the forced uplifting during winter (rainy season) is greatly improved over the R-2. The downscaling skill, however, is sensitive to the cumulus parameterization. This sensitivity is studied by comparing the baseline with a branch summer integration replacing the Grell with the Kain–Fritsch cumulus scheme in the CMM5. The dominant EOF mode of the U.S. summer precipitation interannual variation, identified with the out-of-phase relationship between the Midwest and Southeast in observations, is reproduced more accurately by the Grell than the Kain–Fritsch scheme, which largely underestimates the variation in the Midwest. This pattern is associated with east–west movement of the Great Plains low-level jet (LLJ): a more western position corresponds to a stronger southerly flow bringing more moisture and heavier rainfall in the Midwest and less in the Southeast. The second EOF pattern, which describes the consistent variation over the southern part of the Midwest and the South in observations, is captured better by the Kain–Fritsch scheme than the Grell, whose pattern systematically shifts southward.

scholarly journals The differences of bacterial communities in the tissues between healthy and diseased Yesso scallop (Patinopecten yessoensis)

AMB Express ◽  
2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Zichao Yu ◽  
Chao Liu ◽  
Qiang Fu ◽  
Guangxia Lu ◽  
Shuo Han ◽  
...  
Keyword(s):  
Carbohydrate Metabolism ◽  
Bacterial Communities ◽  
Prevention And Control ◽  
High Throughput Sequencing ◽  
Northern China ◽  
Adductor Muscle ◽  
Rrna Gene ◽  
Patinopecten Yessoensis ◽  
Yesso Scallop ◽  
And Control

Abstract The tissues of marine invertebrates are colonized by species-rich microbial communities. The dysbiosis of host’s microbiota is tightly associated with the invertebrate diseases. Yesso scallop (Patinopecten yessoensis), one of the most important maricultured scallops in northern China, has recently suffered massive summer mortalities, which causes huge production losses. The knowledge about the interactions between the Yesso scallop and its microbiota is important to develop the strategy for the disease prevention and control. In the present study, the bacterial communities in hemolymph, intestine, mantle and adductor muscle were compared between the healthy and diseased Yesso scallop based on the high-throughput sequencing of 16S rRNA gene. The results indicated obvious difference of the composition rather than the diversity of the bacterial communities between the healthy and diseased Yesso scallop. Vibrio, Francisella and Photobacterium were found to overgrow and dominate in the mantle, adductor muscle and intestine of the diseased scallops, respectively. The prediction of bacterial community metagenomes and the variations of KEGG pathways revealed that the proportions of the pathways related with neurodegenerative diseases and carbohydrate metabolism both increased significantly in the mantle and hemolymph of the diseased scallops. The abundance of the metabolism pathways including carbohydrate metabolism, lipid metabolism and amino acid metabolism decreased significantly in the intestine of diseased scallops. The results suggested that the changes of bacterial communities might be closely associated with the Yesso scallop’s disease, which was helpful for further investigation of the pathogenesis as well as prevention and control of the disease in Yesso scallop.

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