scholarly journals The effects of thermal acclimation on cardio-respiratory performance in an Antarctic fish (Notothenia coriiceps)

2018 ◽  
Vol 6 (1) ◽  
Author(s):  
William Joyce ◽  
Michael Axelsson ◽  
Stuart Egginton ◽  
Anthony P Farrell ◽  
Elizabeth L Crockett ◽  
...  
Keyword(s):  
Antarctic Fish ◽  
Thermal Acclimation ◽  
Notothenia Coriiceps

scholarly journals Fine structure of the retinal pigment epithelium and cones of Antarctic fish Notohenia coriiceps Richardson in light and dark-conditions

2007 ◽  
Vol 24 (1) ◽  
pp. 33-40 ◽  
Author(s):  
Lucélia Donatti ◽  
Edith Fanta
Keyword(s):  
Epithelial Cells ◽  
Pigment Epithelium ◽  
Retinal Pigment ◽  
Antarctic Fish ◽  
Basal Region ◽  
Dense Cytoplasm ◽  
Transmission Electron ◽  
Notothenia Coriiceps ◽  
The Antarctic ◽  
Pigment Epithelial Cells

The Antarctic fish Notothenia coriiceps Richardson, 1844 lives in an environment of daily and annual photic variation and retina cells have to adjust morphologically to environmental luminosity. After seven day dark or seven day light acclimation of two groups of fish, retinas were extracted and processed for light and transmission electron microscopy. In seven day dark adapted, retina pigment epithelium melanin granules were aggregated at the basal region of cells, and macrophages were seen adjacent to the apical microvilli, between the photoreceptors. In seven day light adapted epithelium, melanin granules were inside the apical microvilli of epithelial cells and macrophages were absent. The supranuclear region of cones adapted to seven day light had less electron dense cytoplasm, and an endoplasmic reticulum with broad tubules. The mitochondria in the internal segment of cones adapted to seven day light were larger, and less electron dense. The differences in the morphology of cones and pigment epithelial cells indicate that N. coriiceps has retinal structural adjustments presumably optimizing vision in different light conditions.

Metal (Fe, Zn, Mn and Cu) levels in the Antarctic fish Notothenia coriiceps

Polar Biology ◽  
1998 ◽  
Vol 20 (6) ◽  
pp. 404-408 ◽  
Author(s):  
M. Márquez ◽  
C. Vodopivez ◽  
R. Casaux ◽  
A. Curtosi
Keyword(s):  
Antarctic Fish ◽  
Notothenia Coriiceps ◽  
The Antarctic

Hemoglobin from the Antarctic fish Notothenia coriiceps neglecta. 2. Amino acid sequence of the alpha chain of Hb 1

1989 ◽  
Vol 179 (3) ◽  
pp. 707-713 ◽  
Author(s):  
Rossana D'AVINO ◽  
Carla CARUSO ◽  
Mario ROMANO ◽  
Laura CAMARDELLA ◽  
Bruno RUTIGLIANO ◽  
...  
Keyword(s):  
Amino Acid ◽  
Amino Acid Sequence ◽  
Antarctic Fish ◽  
Alpha Chain ◽  
Notothenia Coriiceps ◽  
The Antarctic

Germicide capacity of macrophages (M�) in the Antarctic fish Notothenia coriiceps (Richardson, 1844) at 0�C

Polar Biology ◽  
2005 ◽  
Vol 28 (4) ◽  
pp. 326-328 ◽  
Author(s):  
Jos� Roberto Machado Cunha da Silva ◽  
Laercio Ribeiro Porto-Neto ◽  
Jo�o Carlos Shimada Borges ◽  
Bernard Ernesto Jensch-Junior
Keyword(s):  
Antarctic Fish ◽  
Notothenia Coriiceps ◽  
The Antarctic

Fat absorptive processes in the intestine of the Antarctic fish Notothenia coriiceps (Richardson, 1844)

Polar Biology ◽  
2006 ◽  
Vol 29 (10) ◽  
pp. 831-836 ◽  
Author(s):  
Francisco Javier Hernandez-Blazquez ◽  
Ricardo Romão Guerra ◽  
José Roberto Kfoury ◽  
Pedro Primo Bombonato ◽  
Bruno Cogliati ◽  
...  
Keyword(s):  
Antarctic Fish ◽  
Notothenia Coriiceps ◽  
The Antarctic

scholarly journals Antarctic Fish Blood: Respiratory Properties and the Effects Of Thermal Acclimation

1984 ◽  
Vol 109 (1) ◽  
pp. 265-279
Author(s):  
VILHELM TETENS ◽  
RUFUS M. G. WELLS ◽  
ARTHUR L. DEVRIES
Keyword(s):  
Oxygen Affinity ◽  
Antarctic Fish ◽  
Thermal Acclimation ◽  
Temperate Species ◽  
Molar Ratio ◽  
Oxygen Binding ◽  
Blood Oxygen ◽  
Low Oxygen ◽  
Blood Oxygen Affinity

1. The effects of thermal acclimation on whole blood oxygen affinity were examined in the antarctic fish Pagothenia borchgrevinki. 2. 4.5°C-acclimated fish had a P50 value of 26.7 mmHg at pH 8.1, compared to 20.7 mmHg for −1.5°C-acclimated fish. The apparent heat of oxygenation, ΔH = −26.7 kJ mol−1, is comparable to values for temperate species. 3. Warm-acclimation was followed by an increased ATP: Hb4 molar ratio, resulting in an augmentation of the thermal effect on oxy-haemoglobin affinity. This may be considered adaptive in a constantly well oxygenated environment, where oxygen loading at the gills is secured. Unloading to the tissues is thereby enhanced, supporting an elevated rate of aerobic metabolism at higher temperatures. 4. In vivo blood pH was high, between 8.10 and 8.25 at −1.5°C. Astrup titration revealed arterial CO2 tensions of less than 0.8 mmHg, indicating relative hyperventilation and low oxygen extraction efficiency in antarctic fish. 5. Blood oxygen affinities of four antarctic nototheniid species were low (P50 between 11.9 and 20.7 mmHg at pH 8.1 and --1.5°C) in comparison with the temperate species Notothenia angustata (P50 = 10.8 mmHg). The zoarcid Rhigophila dearborni had a high blood oxygen affinity (P50 = 4.3 mmHg). Blood oxygen-binding properties are discussed in relation to the polar environment, mode of life, and the concept of cold adaptation.

Specific Immunity proteomic profile of the skin mucus of Antarctic fish Chionodraco hamatus and Notothenia coriiceps

2021 ◽  
Author(s):  
Shaojun Huang ◽  
Ruonan Jia ◽  
Hu Ruiqin ◽  
Wanying Zhai ◽  
Shouwen Jiang ◽  
...  
Keyword(s):  
Antarctic Fish ◽  
Proteomic Profile ◽  
Skin Mucus ◽  
Specific Immunity ◽  
Notothenia Coriiceps
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