Feeding strategy changes boldness and agonistic behaviour in the swimming crab ( Portunus trituberculatus )

2021 ◽  
Author(s):  
Xianpeng Su ◽  
Boshan Zhu ◽  
Fang Wang
Keyword(s):  
Feeding Strategy ◽  
Portunus Trituberculatus ◽  
Agonistic Behaviour ◽  
Swimming Crab ◽  
Strategy Changes

scholarly journals Physicochemical characteristics of chitosan from swimming crab (Portunus trituberculatus) shells prepared by subcritical water pretreatment

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Gengxin Hao ◽  
Yanyu Hu ◽  
Linfan Shi ◽  
Jun Chen ◽  
Aixiu Cui ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Molecular Weight ◽  
Sodium Hydroxide ◽  
Subcritical Water ◽  
Physicochemical Characteristics ◽  
Ash Content ◽  
Portunus Trituberculatus ◽  
Swimming Crab ◽  
Water Pretreatment ◽  
Thermal Stability Of

AbstractThe physicochemical properties of chitosan obtained from the shells of swimming crab (Portunus trituberculatus) and prepared via subcritical water pretreatment were examined. At the deacetylation temperature of 90 °C, the yield, ash content, and molecular weight of chitosan in the shells prepared via subcritical water pretreatment were 12.2%, 0.6%, and 1187.2 kDa, respectively. These values were lower than those of shells prepared via sodium hydroxide pretreatment. At the deacetylation temperature of 120 °C, a similar trend was observed in chitosan molecular weight, but differences in chitosan yield and ash content were not remarkable. At the same deacetylation temperature, the structures of chitosan prepared via sodium hydroxide and subcritical water pretreatments were not substantially different. However, the compactness and thermal stability of chitosan prepared via sodium hydroxide pretreatment was lower than those of chitosan prepared via subcritical water pretreatment. Compared with the chitosan prepared by sodium hydroxide pretreatment, the chitosan prepared by subcritical water pretreatment was easier to use in preparing oligosaccharides, including (GlcN)2, via enzymatic hydrolysis with chitosanase. Results suggested that subcritical water pretreatment can be potentially used for the pretreatment of crustacean shells. The residues obtained via this method can be utilized to prepare chitosan.

scholarly journals Development and validation of SNP genotyping assays to identify genetic sex in the swimming crab Portunus trituberculatus

2021 ◽  
Vol 20 ◽  
pp. 100731
Author(s):  
Junkai Lu ◽  
Ronghua Li ◽  
Michaël Bekaert ◽  
Herve Migaud ◽  
Xiao Liu ◽  
...  
Keyword(s):  
Snp Genotyping ◽  
Portunus Trituberculatus ◽  
Swimming Crab ◽  
Development And Validation

Vibriosis of Swimming Crab Portunus trituberculatus in Larviculture

1994 ◽  
Vol 25 (1) ◽  
pp. 50-54 ◽  
Author(s):  
Kiyokuni Muroga ◽  
Kouji Sszuik ◽  
Kkatswa Ishimaru ◽  
Kinya Nogami
Keyword(s):  
Portunus Trituberculatus ◽  
Swimming Crab

Variations in larval morphology and their relationships to survival during mass seed production by the swimming crab, Portunus trituberculatus (Brachyura, Portunidae)

Aquaculture ◽  
2013 ◽  
Vol 414-415 ◽  
pp. 109-118 ◽  
Author(s):  
Shigeki Dan ◽  
Takaaki Kaneko ◽  
Satoshi Takeshima ◽  
Masakazu Ashidate ◽  
Katsuyuki Hamasaki
Keyword(s):  
Seed Production ◽  
Portunus Trituberculatus ◽  
Swimming Crab ◽  
Larval Morphology
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