scholarly journals A novel DDX5 gene in the freshwater crayfish Cherax quadricarinatus is highly expressed during ontogenesis and spermatogenesis

2011 ◽  
Vol 10 (4) ◽  
pp. 3963-3975 ◽  
Author(s):  
D.-A. Fang ◽  
Q. Wang ◽  
J. Wang ◽  
L. He ◽  
L.-H. Liu ◽  
...  
Keyword(s):  
Freshwater Crayfish ◽  
Cherax Quadricarinatus

Expression patterns of two carbonic anhydrase genes, Na+/K+-ATPase and V-type H+-ATPase, in the freshwater crayfish, Cherax quadricarinatus, exposed to low pH and high pH

2017 ◽  
Vol 65 (1) ◽  
pp. 50 ◽  
Author(s):  
Muhammad Yousuf Ali ◽  
Ana Pavasovic ◽  
Peter B. Mather ◽  
Peter J. Prentis
Keyword(s):  
Carbonic Anhydrase ◽  
Expression Patterns ◽  
Maximum Level ◽  
Low Ph ◽  
Freshwater Crayfish ◽  
Α Subunit ◽  
Cherax Quadricarinatus ◽  
High Ph ◽  
Internal Ph ◽  
Ph Conditions

Carbonic anhydrase (CA), Na+/K+-ATPase (NKA) and Vacuolar-type H+-ATPase (HAT) play vital roles in osmoregulation and pH balance in decapod crustaceans. As variable pH levels have a significant impact on the physiology of crustaceans, it is crucial to understand the mechanisms by which an animal maintains its internal pH. We examined expression patterns of cytoplasmic (CAc) and membrane-associated form (CAg) of CA, NKA α subunit and HAT subunit a in gills of freshwater crayfish, Cherax quadricarinatus, at three pH levels – 6.2, 7.2 (control) and 8.2 – over 24 h. Expression levels of CAc were significantly increased at low pH and decreased at high pH conditions 24 h after transfer. Expression increased at low pH after 12 h, and reached its maximum level by 24 h. CAg showed a significant increase in expression at 6 h after transfer at low pH. Expression of NKA significantly increased at 6 h after transfer to pH 6.2 and remained elevated for up to 24 h. Expression for HAT and NKA showed similar patterns, where expression significantly increased 6 h after transfer to low pH and remained significantly elevated throughout the experiment. Overall, CAc, CAg, NKA and HAT gene expression is induced at low pH conditions in freshwater crayfish.

scholarly journals Vitellogenin levels in hemolymph, ovary and hepatopancreas of the freshwater crayfish Cherax quadricarinatus (Decapoda: Parastacidae) during the reproductive cycle.

2012 ◽  
Vol 60 (1) ◽  
Author(s):  
Lilian E. Ferré ◽  
Daniel A. Medesani ◽  
C. Fernando García ◽  
Matías Grodzielski ◽  
Enrique M. Rodríguez
Keyword(s):  
Reproductive Cycle ◽  
Freshwater Crayfish ◽  
Cherax Quadricarinatus

Digestive enzyme response to supplemental ingredients in practical diets for juvenile freshwater crayfish Cherax quadricarinatus

2005 ◽  
Vol 11 (2) ◽  
pp. 79-85 ◽  
Author(s):  
S. LOPEZ-LOPEZ ◽  
H. NOLASCO ◽  
H. VILLARREAL-COLMENARES ◽  
R. CIVERA-CERECEDO
Keyword(s):  
Digestive Enzyme ◽  
Freshwater Crayfish ◽  
Cherax Quadricarinatus

Histopathological surveys of the redclaw freshwater crayfish, Cherax quadricarinatus, in Australia

Aquaculture ◽  
1999 ◽  
Vol 180 (1-2) ◽  
pp. 23-40 ◽  
Author(s):  
Brett F Edgerton ◽  
Leigh Owens
Keyword(s):  
Freshwater Crayfish ◽  
Cherax Quadricarinatus

Temnocephalan symbionts of the freshwater crayfish Cherax quadricarinatus from northern Australia

Hydrobiologia ◽  
1991 ◽  
Vol 227 (1) ◽  
pp. 341-347 ◽  
Author(s):  
Lester R. G. Cannon
Keyword(s):  
Freshwater Crayfish ◽  
Northern Australia ◽  
Cherax Quadricarinatus

scholarly journals Detection of Infectious Hypodermal and Hematopoietic Necrosis Virus (IHHNV, Decapod Penstylhamaparvovirus 1) in Commodity Red Claw Crayfish (Cherax quadricarinatus) Imported into South Korea

2021 ◽  
Vol 9 (8) ◽  
pp. 856
Author(s):  
Chorong Lee ◽  
Seong-Kyoon Choi ◽  
Hye Jin Jeon ◽  
Seung Ho Lee ◽  
Young Kyoon Kim ◽  
...  
Keyword(s):  
South Korea ◽  
Procambarus Clarkii ◽  
Penaeid Shrimp ◽  
Freshwater Crayfish ◽  
Asian Countries ◽  
Necrosis Virus ◽  
Tissue Samples ◽  
Cherax Quadricarinatus ◽  
Pathogenic Viruses ◽  
Red Claw Crayfish

Freshwater crayfish, which are cultivated in aquaculture, are economically important for food and ornamental purposes. However, relatively few studies have focused on potentially pathogenic viruses in crayfish compared to in penaeid shrimp. Commodity red claw crayfish (Cherax quadricarinatus; 400 crayfish in 10 batches) and red swamp crayfish (Procambarus clarkii; 40 crayfish in 2 batches) imported into South Korea from Indonesia and China were screened by PCR to detect infectious hypodermal and hematopoietic necrosis virus (IHHNV or Decapod penstylhamaparvovirus 1). IHHNV was detected in tissue samples pooled from nine out of ten batches of red claw crayfish imported from Indonesia. Phylogenetic analysis of PCR amplicons from representative pools clustered the IHHNV strain with infectious-type II sequences commonly detected in Southeast Asian countries rather than with type III strains detected previously in whiteleg shrimp (Penaeus vannamei) cultured in South Korea. IHHNV DNA was detected most frequently in the muscle (eight batches, 66.7% samples), followed by in the hepatopancreas (five batches, 41.7% samples) and gills tissue (three batches, 25.0% samples). These data suggest that red claw crayfish could be a potential carrier of the virus and that quarantine procedures must be strengthened in South Korea to avoid importing infectious types of IHHNV in commodity crustaceans such as red claw crayfish.

scholarly journals First record of the Australian redclaw crayfish Cherax quadricarinatus (von Martens 1868) in Hong Kong, China

2020 ◽  
Author(s):  
YAU Sze-man ◽  
LAU Anthony
Keyword(s):  
Hong Kong ◽  
Carapace Length ◽  
First Record ◽  
Ecological Impacts ◽  
Freshwater Crayfish ◽  
Cherax Quadricarinatus ◽  
The World ◽  
Comprehensive Survey ◽  
Stream Pool ◽  
Redclaw Crayfish

AbstractInvasive freshwater crayfish are spreading rapidly across the world. Here, we report the first record of Australian redclaw crayfish, Cherax quadricarinatus (von Martens 1868) in Hong Kong, China. Identification of the captured crayfish was confirmed using external morphological features and molecular analyses. A total of 49 crayfish were captured from a stream pool and a reservoir in Pok Fu Lam Country Park using dip nets and funnel traps. The captured C. quadricarinatus ranged from 17.20 mm to 56.40 mm (mean = 30.70) in carapace length and the sex ratio was 1:1. Since this species is globally recognized as an invasive species, a comprehensive survey on its status and invasion front, an investigation into its potential ecological impacts, as well as the formulation of a monitoring and removal strategy, are warranted.

scholarly journals HEMATOLOGICAL AND BIOCHEMICAL INDICATORS OF AUSTRALIAN RED-CLAW CRAYFISH HEMOLYMPH

2021 ◽  
Vol 2021 (2) ◽  
pp. 134-143
Author(s):  
Lina Yurievna Lagutkina ◽  
Elena Evgrafova ◽  
Evgeniia Germanovna Kuzmina ◽  
Alexey Mikhaylovich Mazlov
Keyword(s):  
Physiological State ◽  
Cholesterol Content ◽  
Freshwater Crayfish ◽  
Astacus Leptodactylus ◽  
Biochemical Indicators ◽  
Cherax Quadricarinatus ◽  
Freshwater Aquaculture ◽  
Red Claw Crayfish ◽  
High Level ◽  
Australian Freshwater

The article describes Australian red claw crayfish, Cherax quadricarinatus, which is currently one of the most promising cultivation targets. However, to increase production volumes, it is necessary to improve cultivation technologies, which should be based on the data of physiological and biochemical parameters. An objective method for monitoring the physiological state of Australian red claw crayfish in the artificial conditions is determining its hematological and biochemical indicators that complement the general characteristics of hemolymph and later define its physiological norm. When giving the objects the compound feed, which the authors produced by their own recipe, there was recorded a high level of total hemolymph protein of 40.8 ± 4.5 g/l. According to the results of biochemical research, the cholesterol content in the hemolymph of Australian crayfish was 3.2 ± 0.6 mmol/l, and the concentration of lipoproteins was 0.8 ± 0.2 g/l (levels within the reference values). When considering the hemogram of hemolymph there were found the dominant types and linear dimensions of native formed elements. The diameter of agranulocytes in Australian freshwater crayfish varied from 85 to 90 μm, semi-granulocytes - from 90 to 95 μm, granulocytes - from 65 to 78 μm, transparent cells differed by greater variability in size, which ranged from 85 to 120 μm. The part of granulocytes in relation to other shaped elements exceeded 50%, for transparent cells it turned out to be above 20%, for semi-granulocytes - about 15% and for agranulocytes - about 5%, which means that the latter form the rarest group. The established ratios are specific for Cherax quadricarinatus, its hemocytic characteristics greatly differs from Astacus leptodactylus, which is the main object of comparative research. The results of comparative analysis of the cellular composition of the hemolymph of the Australian freshwater crayfish Cherax quadricarinatus (Von Martens, 1868) demonstrate the taxonomic specificity of this representative of freshwater aquaculture

Sign in / Sign up

Export Citation Format

Share Document