Effect of Quantitative Traits on Adductor Muscle Weight in Selected and Control Lines of Argopecten irradians concentricus

The isometric and isotonic contractile properties of the cross-striated adductor muscle of the bay scallop (Argopecten irradians) were measured in vitro at 10, 15 and 20 degrees C. The length at which twitch force was maximal as a function of the closed length in situ (L0/Lcl) averaged 1.38 +/− 0.01 (mean +/− S.E.M.) at 10 degrees C. This length is very close to the typical length at maximum gape during natural swimming at this temperature. Passive force was very low over the range of lengths measured here; at L0, passive force averaged approximately 0.08 N cm-2, or only 0.5% of the corresponding peak twitch force. The mean peak isometric twitch force (Ptw,max) at 10 degrees C was 21.43 +/− 0.68 N cm-2 (S.E.M.), and the ratio of peak twitch force to tetanic force (Ptw,max/P0) averaged 0.89 +/− 0.01. Temperature did not affect either twitch force (Ptw), once fatigue was taken into account, or Ptw,max/P0. In contrast, the time-related properties of twitch contractions (latent period, tL; time to peak tension, tPtw; and time from peak tension to half-relaxation, t50%R) were positively modified by temperature at all temperatures measured (Q10 > 1.8). All three properties were more temperature-sensitive over the range 10–15 degrees C than over the range 15–20 degrees C. The force-velocity relationships of the striated adductor muscle were fitted to the hyperbolic-linear (HYP-LIN) equation. The force-velocity curves of the striated adductor muscle of the scallop were strongly influenced by temperature. Maximal velocity at zero force (Vmax), and therefore maximal power output, increased significantly with temperature. The Q10 over the temperature range 10–15 degrees C (1.42) was significantly lower than that over the range 15–20 degrees C (2.41). The shape of the force-velocity relationship, assessed through comparisons of the power ratio (Wmax/VmaxP0), was not influenced by temperature.

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Mechanism of antioxidant action of natural phenolics on scallop (Argopecten irradians) adductor muscle during drying process

Food Chemistry ◽

10.1016/j.foodchem.2018.12.108 ◽

2019 ◽

Vol 281 ◽

pp. 251-260 ◽

Cited By ~ 6

Author(s):

Hong-Kai Xie ◽

Da-Yong Zhou ◽

Fa-Wen Yin ◽

Kanyasiri Rakariyatham ◽

Man-Tong Zhao ◽

...

Keyword(s):

Adductor Muscle ◽

Argopecten Irradians ◽

Antioxidant Action ◽

Drying Process

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Habitat Affects Survival of Translocated Bay Scallops, Argopecten irradians concentricus (Say 1822), in Lower Chesapeake Bay

Estuaries and Coasts ◽

10.1007/s12237-012-9510-2 ◽

2012 ◽

Vol 35 (5) ◽

pp. 1340-1345 ◽

Cited By ~ 17

Author(s):

Ana L. Hernández Cordero ◽

Rochelle D. Seitz ◽

Romuald N. Lipcius ◽

Caitlin M. Bovery ◽

David M. Schulte

Keyword(s):

Chesapeake Bay ◽

Argopecten Irradians ◽

Bay Scallops ◽

Argopecten Irradians Concentricus

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

AMB Express ◽

10.1186/s13568-019-0870-x ◽

2019 ◽

Vol 9 (1) ◽

Cited By ~ 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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