Gnathiphimedia mandibularis K.H. Barnard 1930, an Antarctic amphipod (Acanthonotozomatidae, Crustacea) feeding on Bryozoa

1989 ◽  
Vol 1 (4) ◽  
pp. 343-344 ◽  
Author(s):  
C. Oliver Coleman
Keyword(s):  
Antarctic Ocean ◽  
The Family ◽  
Antarctic Amphipod ◽  
The Antarctic

The family Acanthonotozomatidae is widely distributed, especially in the Antarctic Ocean. Although many acanthonotozomatids are very conspicuous (they are relatively large and often armoured with teeth on tergites and appendages) very little is known about their biology (Just 1978, Coleman 1989).

Metabolic activity of zooplankton from the Antarctic Ocean

1981 ◽  
Vol 32 (6) ◽  
pp. 921 ◽  
Author(s):  
T Ikeda ◽  
EH Fay
Keyword(s):  
Respiration Rate ◽  
Ammonia Excretion ◽  
Effect Of Temperature ◽  
Antarctic Ocean ◽  
Q10 Value ◽  
Ets Activity ◽  
The Family ◽  
Excretion Rates ◽  
The Antarctic ◽  
Ammonia Excretion Rate

Eight species of live zooplankton were transported from the Antarctic Ocean to a tropical laboratory in Queensland, Australia. Their respiration and ammonia excretion rates measured at - 0.5� C were in the order of 0.15-0.55 �l O2/mg dry wt. h and 0.002-0.06�g N mg dry wt. h, respectively. As an indirect estimate enzyme activity of the respiratory electron transport system (ETS) was determined on frozen specimens of 15 zooplankton species brought back from the Antarctic Ocean. The ratio of ETS activity to respiration rate measured in this study was 1.863 � 0.738 (n = 12). The respiration rates thus directly and indirectly obtained were in agreement with results of previous workers. Effect of temperature on respiration and ammonia excretion rates were examined on two selected animal groups of zooplankton- copepods belonging to the family Calanidae and euphausiids of the genus Euphausia- and the results were compared with those for species from other seas where the temperature varies from 5.0 to 27.6�C. From this comparison, acceleration of the rate (standardized to 1 mg dry wt of body) by the increase of temperature (expressed as a Q10 value) was 2.18 for respiration rate and 2.58 for ammonia excretion rate.

scholarly journals Thurstonella, replacement name for the Antarctic amphipod genus Clarencia K.H. Barnard, 1931 (Crustacea, Amphipoda, Thurstonellidae), preoccupied by Clarencia Sloane, 1917 (Insecta, Coleoptera, Carabidae)

Zootaxa ◽  
2008 ◽  
Vol 1840 (1) ◽  
pp. 67
Author(s):  
JIM LOWRY ◽  
WOLFGANG ZEIDLER
Keyword(s):  
Ground Beetles ◽  
Carabid Beetles ◽  
Zoological Nomenclature ◽  
International Code ◽  
Fourth Edition ◽  
The Family ◽  
Antarctic Amphipod ◽  
Set Up ◽  
The Antarctic ◽  
Papua New Guinean

The generic name Clarencia was originally proposed by Sloane (1917) for a genus of carabid beetles (Insecta, Coleoptera, Carabidae). It is a valid name in current use for a small endemic genus of Australian/Papua New Guinean ground beetles, recently revised by Baehr (2005). Clarencia K.H. Barnard, 1931, was established as a monotypic genus of Antarctic amphipods. Shaw (1989) and Zeidler (1994) have both redescribed Clarencia chelata K.H. Barnard, 1931. Zeidler (1994) re-diagnosed the family Clarenciidae Barnard & Karaman, 1987 and set up the superfamily Clarencioidea. It was recently brought to our attention that Clarencia K.H. Barnard, 1931 is a junior homonym of Clarencia Sloane, 1917. The new name, Thurstonella, is proposed to replace Clarencia K.H. Barnard, 1931. Because the type genus of the family is a junior homonym, the family group name Clarenciidae Barnard & Karaman, 1987, is replaced with Thurstonellidae, in accordance with Article 39 of the International Code of Zoological Nomenclature (1999, fourth edition).

Recovery of Pseudoterranova decipiens (Anisakidae) larvae from codfish of the Antarctic Ocean

1995 ◽  
Vol 33 (3) ◽  
pp. 231 ◽  
Author(s):  
J Y Chai ◽  
S M Guk ◽  
J J Sung ◽  
H C Kim ◽  
Y M Park
Keyword(s):  
Antarctic Ocean ◽  
Pseudoterranova Decipiens ◽  
The Antarctic

THE ANTARCTIC OCEAN

2014 ◽  
pp. 465-478
Author(s):  
Georg Hartwig
Keyword(s):  
Antarctic Ocean ◽  
The Antarctic

Observations on moulting in Antarctic Krill (Euphausia superba Dana)

1982 ◽  
Vol 33 (1) ◽  
pp. 71 ◽  
Author(s):  
T Ikeda ◽  
P Dixon
Keyword(s):  
Phaeodactylum Tricornutum ◽  
Antarctic Krill ◽  
Dry Weight ◽  
Euphausia Superba ◽  
Dunaliella Tertiolecta ◽  
Antarctic Ocean ◽  
Fish Food ◽  
Antarctic Waters ◽  
The Antarctic ◽  
Antarctic Krill Euphausia Superba

Live E. superba were transported from Antarctic waters to a tropical laboratory where observations at the temperature of -0.5�C (0 to - 1.0�C), were made of intermoult period of specimens fed a mixture of microalgae (Dunaliella tertiolecta and Phaeodactylum tricornutum) or artificial pet fish food or starved. Mean intermoult period was 26.4-27.1 days for fed specimens and 29.6 days for starved specimens, with no relation to the size of specimens. The moult accounted for a loss of 2.63-4.35% of animal dry weight, which is equivalent to 1.1-1.8% of animal nitrogen or 1.4-2.3% of animal carbon. The contribution of moults to detritus in the Antarctic Ocean was estimated as 0.11 g C m-2 per year.

Comment on “The Cretaceous-Tertiary boundary transition in the Antarctic Ocean and its global implications”, by G. Keller

1994 ◽  
Vol 24 (2) ◽  
pp. 91-99 ◽  
Author(s):  
Brian T. Huber ◽  
Chengjie Liu ◽  
Richard K. Olsson ◽  
William A. Berggren
Keyword(s):  
Antarctic Ocean ◽  
The Antarctic
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