scholarly journals Regulation of splenic contraction persists as a vestigial trait in white‐blooded Antarctic fishes

2020 ◽  
Author(s):  
William Joyce ◽  
Michael Axelsson
Keyword(s):  
Antarctic Fishes

scholarly journals Retinal Topography of Ganglion Cells and Putative UV-Sensitive Cones in Two Antarctic Fishes: Pagothenia borchgrevinki and Trematomus bernacchii (Nototheniidae)

2002 ◽  
Vol 19 (11) ◽  
pp. 1223-1229 ◽  
Author(s):  
Taeko Miyazaki ◽  
Tetsuo Iwami ◽  
Hiroaki Somiya ◽  
V. Benno Meyer-Rochow
Keyword(s):  
Ganglion Cells ◽  
Antarctic Fishes ◽  
Retinal Topography ◽  
Pagothenia Borchgrevinki ◽  
Trematomus Bernacchii

scholarly journals New data on the morphology and phylogenetic connections of Postlepidapedon opisthobifurcatum (Trematoda, Lepocreadioidea: Lepidapedidae), a parasite of Antarctic and sub-Antarctic fishes

2018 ◽  
Vol 55 (2) ◽  
pp. 95-101 ◽  
Author(s):  
S. G. Sokolov ◽  
F. K. Khasanov ◽  
I. I. Gordeev
Keyword(s):  
Seminal Vesicle ◽  
Intestinal Parasite ◽  
Proximal Part ◽  
Molecular Data ◽  
External Seminal Vesicle ◽  
Internal Seminal Vesicle ◽  
Antarctic Fishes ◽  
Glandular Cells ◽  
Thin Walled ◽  
Terminal Genitalia

Summary The trematode Postlepidapedon opisthobifurcatum (Zdzitowiecki, 1990) is a common intestinal parasite of the gadiform fishes of the Southern Ocean. In this work, we supplement the description of the species with the anatomy of the terminal part of the reproductive system and with molecular data. The male terminal genitalia are characterised by the presence of the external seminal vesicle and cirrus-sac. The external seminal vesicle is surrounded by aciniform groups of outer prostatic cells. Groups of outer prostatic cells and proximal parts of their ducts are associated with a thin-walled membrane that is connected to the proximal edge of the cirrus-sac. The cirrus-sac is claviform, with a long proximal part accommodating the tubular, thin-walled internal seminal vesicle and ducts of outer prostatic cells. The female terminal genitalia are represented by a thick-walled metraterm, which is surrounded by aciniform groups of glandular cells. Phylogenetic analysis based on 28S rDNA partial sequences data placed P. opisthobifurcatum into the monophyletic group Lepidapedidae, including the species Myzoxenus insolens (Crowcroft, 1945), Intusatrium robustum Durio et Manter, 1968, and Postlepidapedon uberis Bray, Cribb et Barker, 1997. However, we were unable to detect direct phylogenetic connections between P. opisthobifurcatum and P. uberis.

Synthesis of an Isotopically-labelled Antarctic Fish Antifreeze Glycoprotein Probe

2011 ◽  
Vol 64 (6) ◽  
pp. 723 ◽  
Author(s):  
Joanna M. Wojnar ◽  
Clive W. Evans ◽  
Arthur L. DeVries ◽  
Margaret A. Brimble
Keyword(s):  
Mass Spectrometry ◽  
Amino Acid ◽  
Building Block ◽  
Exocrine Pancreas ◽  
Antarctic Fish ◽  
Antifreeze Glycoproteins ◽  
Threonine Residue ◽  
Antarctic Fishes ◽  
Antifreeze Glycoprotein ◽  
Acid Unit

Antifreeze glycoproteins (AFGPs) are glycosylated polypeptides produced by Antarctic and Arctic fishes, which allow them to survive in seawater at sub-zero temperatures. An investigation into the postulated enteric uptake of AFGP synthesized in the exocrine pancreas of Antarctic fishes required a custom-prepared AFGP probe that incorporated seven isotopically-labelled Ala residues for detection by mass spectrometry. The AFGPs are composed of a repetitive three amino acid unit (Ala-Ala-Thr), in which the threonine residue is glycosylated with the disaccharide β-d-Gal-(1→3)-α-d-GalNAc. The synthesis of isotopically-labelled AFGP8 (1), as well as the optimized synthesis of the protected glycosylated amino acid building block 2, is reported.

Quantification of diffusion distance within the spongy myocardium of hearts from antarctic fishes

2000 ◽  
Vol 122 (1) ◽  
pp. 71-80 ◽  
Author(s):  
K.M O'Brien ◽  
Huijie Xue ◽  
B.D Sidell
Keyword(s):  
Diffusion Distance ◽  
Antarctic Fishes

Antarctic Fishes

2009 ◽  
pp. 191-194
Author(s):  
I. Everson
Keyword(s):  
Antarctic Fishes

Ecological features of antarctic fishes

1999 ◽  
pp. 219-238
Author(s):  
M. Vacchi ◽  
E. Pisano ◽  
G. La Mesa
Keyword(s):  
Antarctic Fishes ◽  
Ecological Features
Sign in / Sign up

Export Citation Format

Share Document