Age determination of the Antarctic fishes Champsocephalus gunnari and Notothenia rossii marmorata from South Georgia

Polar Biology ◽  
1990 ◽  
Vol 10 (5) ◽  
Author(s):  
RichardL. Radtke
Keyword(s):  
Age Determination ◽  
South Georgia ◽  
Antarctic Fishes ◽  
Champsocephalus Gunnari ◽  
The Antarctic ◽  
Notothenia Rossii

Ecological and physiological aspects of the antarctic fishes Notothenia rossii and Notothenia coriiceps in Admiralty Bay, Antarctic Peninsula

2014 ◽  
Vol 98 (3) ◽  
pp. 775-788 ◽  
Author(s):  
Gabriela Raga ◽  
Helen Audrey Pichler ◽  
Tânia Zaleski ◽  
Flavia Baduy Vaz da Silva ◽  
Cintia Machado ◽  
...  
Keyword(s):  
Antarctic Peninsula ◽  
Admiralty Bay ◽  
Antarctic Fishes ◽  
Notothenia Coriiceps ◽  
The Antarctic ◽  
Notothenia Rossii

Egg-shell morphology of the Antarctic fish, Notothenia rossii Richardson, and the distribution and abundance of pelagic eggs at South Georgia

1996 ◽  
Vol 8 (3) ◽  
pp. 267-271 ◽  
Author(s):  
Martin G. White ◽  
Richard R. Veit ◽  
Anthony W. North ◽  
Ken Robinson
Keyword(s):  
Electron Microscopy ◽  
Antarctic Fish ◽  
Shell Morphology ◽  
Fish Eggs ◽  
South Georgia ◽  
Pelagic Eggs ◽  
Egg Shell ◽  
The Antarctic ◽  
Notothenia Rossii ◽  
Scanning Electron

During winter research cruises to South Georgia (1983 and 1993) fish eggs were abundant in the neuston. Examination of the external sculpturing and the micropyle morphology of the eggs collected during 1993 using scanning electron microscopy indicated that these were fertilized ova of Notothenia rossii marmorata. A comparison between the eggs of N. rossii from Iles Kerguelen and South Georgia showed these to have a similar surface morphology but a difference in the structure of the micropyle. In 1993, the abundance of fish eggs in the neuston varied from 0-116 eggs m−3 with an average of 4.5 eggs m−3. During 1983, eggs were most abundant in the neuston but at lower average levels (0.04 eggs m−3, range 0–1.17 eggs m−3) and these were distributed from the surface to >380 m.

Metabolic responses of the Antarctic fishes Notothenia rossii and Notothenia coriiceps to sewage pollution

2015 ◽  
Vol 41 (5) ◽  
pp. 1205-1220 ◽  
Author(s):  
Edson Rodrigues ◽  
Mariana Feijó-Oliveira ◽  
Cecília Nohome Kawagoe Suda ◽  
Gannabathula Sree Vani ◽  
Lucélia Donatti ◽  
...  
Keyword(s):  
Metabolic Responses ◽  
Sewage Pollution ◽  
Antarctic Fishes ◽  
Notothenia Coriiceps ◽  
The Antarctic ◽  
Notothenia Rossii

Age determination of Reindeer introduced into South Georgia

2009 ◽  
Vol 188 (4) ◽  
pp. 501-515 ◽  
Author(s):  
Nigel Leader-Williams
Keyword(s):  
Age Determination ◽  
South Georgia

scholarly journals II.—The Antarctic Fishes of the Scottish National Antarctic Expedition

1913 ◽  
Vol 49 (2) ◽  
pp. 229-292 ◽  
Author(s):  
C. Tate Regan
Keyword(s):  
Fish Fauna ◽  
Antarctic Fish ◽  
The South ◽  
South Georgia ◽  
Antarctic Fishes ◽  
Victoria Land ◽  
Antarctic Expedition ◽  
South Shetlands ◽  
The Antarctic

Our knowledge of the Antarctic fish-fauna has greatly increased during the last ten years. The Belgian expedition to Graham Land (1897–1899) was followed by that of the Southern Cross to Victoria Land (1898–1900), fitted out by Sir George Newnes. Next were the British expedition of the Discovery to Victoria Land and Edward Land (1901–1904), the German voyage of the Gauss to Kerguelen and Willhelm Land (1901–1903), and Nordenskjöld's Swedish expedition to South Georgia, the South Shetlands, and Graham Land. Then came the voyage of the Scotia to the South Orkneys and Coats Land (1902–1904), and Charcot's expeditions to the Palmer Archipelago and Graham Land in the Français. (1904–1905) and the Pourquoi Pas? (1908–1910), and finally Shackleton's expedition (1908–1909).

scholarly journals Heat stress in the heart and muscle of the Antarctic fishes Notothenia rossii and Notothenia coriiceps: Carbohydrate metabolism and antioxidant defence

Biochimie ◽  
2018 ◽  
Vol 146 ◽  
pp. 43-55 ◽  
Author(s):  
Maria Rosa Dmengeon Pedreiro de Souza ◽  
Tatiana Herrerias ◽  
Tania Zaleski ◽  
Mariana Forgati ◽  
Priscila Krebsbach Kandalski ◽  
...  
Keyword(s):  
Heat Stress ◽  
Carbohydrate Metabolism ◽  
Antioxidant Defence ◽  
Antarctic Fishes ◽  
Notothenia Coriiceps ◽  
The Antarctic ◽  
Notothenia Rossii

Analysis of Fibronectin and TGF-β1 Immunoexpression to Determination of Wound Vitality in Wistar Rats (Rattus norvegicus)

2015 ◽  
Vol 1 (1) ◽  
Author(s):  
Nita Novita ◽  
Hasrayati Agustina ◽  
Bethy S. Hernowo ◽  
Abdul H. Hassan
Keyword(s):  
Rattus Norvegicus ◽  
Wistar Rats ◽  
Age Determination ◽  
Scientific Field ◽  
Wound Age ◽  
Forensic Practice ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Tgf Β1

Wound examination is indispensable in forensic practice. The scientific field of wound age determination has advanced progressively during recent years.The purpose of this study was to determine the differences of fibronectin and TGF-β1 expression in both antemortem and postmortem wounds. This study was an experimental with completely randomized design.  The skin wounds (vital and postmortem) were taken from fourty Wistar rats and divided into 10 groups of rats. Immunohistochemical staining was performed to determine the differences between antemortem and postmortem wounds. The result showed that in 30 minutes after antemortem wound infliction, all of samples showed weak reactivity for fibronectin and TGF-β1 (100%).  In first hour after wound infliction, 3 samples (75%) showed weakly positive and 1 sample (25%) strongly positive for fibronectin and TGF-β1.  In 2 hour after wound infliction, 1 sample (25%) showed weakly positive and 3 sample (75%) strongly positive for fibronectin and TGF-β1.  In 3 and 4 hour after wound infliction, all of samples strongly positive for fibronectin and TGF-β1.  In postmortem wound, all of samples showed negativity for fibronectin and TGF-β1. In conclusion, fibronectin and TGF-β1 may be useful in the determination of wound vitality. Keywords: wound, fibronectin, TGF-β1, vitality

scholarly journals Directly ageing the Caribbean spiny lobster, Panulirus argus with validated band counts from gastric mill ossicles

2018 ◽  
Vol 76 (2) ◽  
pp. 442-451 ◽  
Author(s):  
Gaya Gnanalingam ◽  
Mark J Butler ◽  
Thomas R Matthews ◽  
Emily Hutchinson ◽  
Raouf Kilada
Keyword(s):  
Spiny Lobster ◽  
Age Determination ◽  
Florida Keys ◽  
Panulirus Argus ◽  
Gastric Mill ◽  
Coefficients Of Variation ◽  
The Caribbean ◽  
First Time ◽  
Reader Experience

Abstract In crustaceans, ecdysis was long believed to result in the loss and replacement of all calcified structures, precluding the use of conventional ageing methods. However, the discovery of bands in the gastric ossicles of several crustaceans with some correlation with age suggests that direct age estimation may be possible. We applied this method to a tropical spiny lobster, Panulirus argus, one of the most iconic and economically valuable species in the Caribbean. The presence of growth bands was investigated using wild lobsters of unknown age and was validated with captive reared lobsters of known age (1.5–10 years) from the Florida Keys, Florida (USA). Bands were consistently identified in ptero- and zygo-cardiac ossicles of the gastric mill and did not appear to be associated with moulting. Validation with known age animals confirms that bands form annually. Counts between independent readers were reproducible with coefficients of variation ranging from 11% to 26% depending on reader experience and the structure used. This study demonstrates, for the first time, that direct age determination of P. argus is possible.

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