scholarly journals Effects of Salinity on Gills’ Chloride Cells, Stress Indices and Gene Expression of Asian Seabass (Lates Calcarifer, Bloch, 1790)

2021 ◽  
Author(s):  
Maryam Azodi ◽  
Mahmoud Nafisi Bahabadi ◽  
Ahmad Ghasemi ◽  
Vahid Morshedi ◽  
Mansour Torfi Mozanzadeh ◽  
...  
Keyword(s):  
Fresh Water ◽  
Sea Bass ◽  
Chloride Content ◽  
Serum Cortisol ◽  
The Other ◽  
Chloride Cells ◽  
Stress Indices ◽  
Relative Expression ◽  
Asian Sea Bass ◽  
Interlamellar Region

Abstract A two-week research was carried-out to assess water salinity (WS) effects including 0, 15, 35 and 50‰ on osmoregulatory mechanisms and stress indices in Asian sea bass (34.4 g) juveniles. Except for fish reared at 50‰, in the other treatments gradually decreased to the prescribed WS during a 10-day period (-5‰ a day). After 10-day of acclimation period, fish reared at the prescribed WS for two weeks. Fish reared at 15 and 35‰ had higher chloride cell (CC) counts in the interlamellar region. The number of CC in the interlamellar region elevated with increment of WS up to 35‰, but they were pronouncedly reduced in 50‰ group . The diameter of CC in the interlamellar region was not affected by WS. The least nucleus diameter of CC in the interlamellar region was observed in fish reared at 15‰ (P < 0.05). The greatest and the least amounts of serum aspartate aminotransferase content were observed in fish reared at freshwater and 15‰, respectively. Fish reared at 35‰ had the highest serum sodium and potassium contents. Serum chloride content and total osmolality increased with increment of WS (P < 0.05). Serum cortisol and glucose contents gradually increased with elevation of WS up to 35‰, then their contents remarkably decreased. The relative expression of insulin like growth factor-1 in the liver of fish reared at 35‰ was strikingly higher than the other groups. The relative expression of HSP70 gene in fresh water group was pronouncedly elevated compared to other treatments. The relative expression of interleukin-1β in 15 and 35‰ groups was higher than the other groups; however, the relative expression of lysozyme gene in the liver of fish reared at fresh water was pronouncedly lower than the other treatments. The results of this study suggested rearing L. calcarifer at 15‰ closer to the isosmotic point and better provide its welfare.

Branchial chloride cells in sea bass (Dicentrarchus labrax) adapted to fresh water, seawater, and doubly concentrated seawater

2002 ◽  
Vol 293 (1) ◽  
pp. 12-26 ◽  
Author(s):  
STAMATIS VARSAMOS ◽  
JEAN PIERRE DIAZ ◽  
GUY CHARMANTIER ◽  
GERT FLIK ◽  
CLAUDINE BLASCO ◽  
...  
Keyword(s):  
Fresh Water ◽  
Dicentrarchus Labrax ◽  
Sea Bass ◽  
Chloride Cells

scholarly journals Morphological differences between species of the sea bass genus Lateolabrax (Teleostei, Perciformes), with particular emphasis on growth-related changes

ZooKeys ◽  
2019 ◽  
Vol 859 ◽  
pp. 69-115
Author(s):  
Kōji Yokogawa
Keyword(s):  
Lateral Line ◽  
Size Range ◽  
Sea Bass ◽  
The Other ◽  
Meristic Characters ◽  
Caudal Peduncle ◽  
Snout Length ◽  
Asian Sea Bass ◽  
Scatter Plots ◽  
Morphological Differences

Morphological differences, including growth-related changes, were examined in three morphologically similar East Asian sea bass species,Lateolabraxjaponicus,L.maculatusandL.latus. In many cases, body measurements indicated specific patterns of growth-related proportional changes.Lateolabraxlatusdiffered from the other two species in having greater body depth, caudal peduncle depth, caudal peduncle anterior depth, snout length, and upper and lower jaw length proportions. In particular, scatter plots for caudal peduncle anterior depth relative to standard length (SL) in that species indicated complete separation from those of the other two species, being a new key character for identification. Comparisons ofL.japonicusandL.maculatusrevealed considerable proportional differences in many length-measured characters, including fin lengths (first and second dorsal, caudal and pelvic), snout length, post-orbital preopercular width (POPW) and post-orbital length. In particular, snout length (SNL) and POPW proportions of the former were greater and smaller for specimens &gt;200 and ≤ 200 mm SL, respectively. Because the scatter plots of these proportions for the two species did not overlap each other in either size range, identification of the species was possible using a combination of the two characters. In addition, scatter plots of the POPW / SNL proportion (%) ofL.japonicusandL.maculatuswere almost completely separated throughout the entire size range examined (border level 90%), a further aid to identification. The numbers of pored lateral line scales and scales above the lateral line tended to increase and decrease with growth, respectively, inL.japonicus, whereas scales below the lateral line and gill raker numbers tended to increase with growth inL.maculatus. Because the ranges of these meristic characters may therefore vary with specimen size, they are unsuitable for use as key characters. Accordingly, a new key is proposed for the genusLateolabrax.

Physical and chemical characteristics of Asian sea bass bio‐calcium powders as affected by ultrasonication treatment and drying method

2021 ◽  
Vol 45 (4) ◽  
Author(s):  
Ima Wijayanti ◽  
Pornsatit Sookchoo ◽  
Thummanoon Prodpran ◽  
Chitradurga O. Mohan ◽  
Rotimi E. Aluko ◽  
...  
Keyword(s):  
Sea Bass ◽  
Chemical Characteristics ◽  
Drying Method ◽  
Physical And Chemical Characteristics ◽  
Asian Sea Bass ◽  
Physical And Chemical

β-Defensin from the Asian Sea Bass, Lates calcarifer: Molecular Prediction and Phylogenetic Analysis

2021 ◽  
Author(s):  
Athira Raveendran ◽  
Dhanya Lenin K. L. ◽  
Anju M.V. ◽  
Neelima S. ◽  
Anooja V.V. ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Sea Bass ◽  
Lates Calcarifer ◽  
Asian Sea Bass

scholarly journals In vitro antioxidant and wound-healing activities of hydrolyzed collagen from defatted Asian sea bass skin as influenced by different enzyme types and hydrolysis processes

RSC Advances ◽  
2021 ◽  
Vol 11 (30) ◽  
pp. 18144-18151
Author(s):  
Lalita Chotphruethipong ◽  
Thunwa Binlateh ◽  
Pilaiwanwadee Hutamekalin ◽  
Wanida Sukketsiri ◽  
Rotimi E. Aluko ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Functional Food ◽  
Sea Bass ◽  
Food Ingredient ◽  
Hydrolyzed Collagen ◽  
Asian Sea Bass ◽  
Antioxidant Potency ◽  
Sea Bass Skin ◽  
Lamellipodia Formation

Hydrolyzed collagen (HC) from sea bass skin prepared using papain and Alcalase had antioxidant potency and could enhance MRC-5 cell proliferation and lamellipodia formation. HC can be used as a nutraceutical or functional food ingredient.

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