Mathias Teschke
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Analysis of the circadian transcriptome of the Antarctic krill Euphausia superba Open
Antarctic krill ( Euphausia superba ) is a high latitude pelagic organism which plays a central role in the Southern Ocean ecosystem. E . superba shows daily and seasonal rhythms in physiology and behaviour, which are synchronized with the…
The Seasonal Metabolic Activity Cycle of Antarctic Krill (Euphausia superba): Evidence for a Role of Photoperiod in the Regulation of Endogenous Rhythmicity Open
Antarctic krill (Euphausia superba), a key species in the Southern Ocean, reduce their metabolism as an energy saving mechanism in response to the harsh environmental conditions during the Antarctic winter. Although the adaptive significan…
Photoperiodic modulation of circadian functions in Antarctic krill Euphausia superba Dana, 1850 (Euphausiacea) Open
An endogenous circadian clock influences metabolic output rhythms in the Antarctic krill (Euphausia superba Dana, 1850), a key species in the Southern Ocean ecosystem. Seasonal changes in photoperiod in Antarctica, ranging from midnight su…
<i>Calanus finmarchicus</i> seasonal cycle and diapause in relation to gene expression, physiology, and endogenous clocks Open
The copepod Calanus finmarchicus plays a crucial role in the north Atlantic food web. Its seasonal life cycle involves reproduction and development in surface waters before overwintering in diapause at depth. Although diapause has been stu…
Calanus finmarchicus diel and seasonal rhythmicity in relation to endogenous timing under extreme polar photoperiods Open
Changing environmental conditions cause poleward distribution shifts in many marine
\norganisms including the northern Atlantic key zooplankton species Calanus finmarchicus. The
\ncopepod has diel cycles of vertical migration and feeding, …
Light regime affects the seasonal cycle of Antarctic krill (<i>Euphausia superba</i>): impacts on growth, feeding, lipid metabolism, and maturity Open
Light regime is an important zeitgeber for Antarctic krill (Euphausia superba Dana, 1850), which seems to entrain an endogenous timing system that synchronizes its life cycle to the extreme light conditions in the Southern Ocean. To unders…
Baseline data of growth, feeding, lipid content and maturity analysis in Antarctic krill, Euphausia superba, during long-term photoperiodic controlled lab experiments Open
Light regime is an important Zeitgeber for Antarctic krill (Euphausia superba), which seems to entrain an endogenous timing system that synchronizes its life cycle to the extreme light conditions in the Southern Ocean. To understand the fl…
Abundance of Euphausia superba larvae measured on multinet samples during POLARSTERN cruise ANT-XXIX/7 Open
Abundance of Euphausia superba larvae measured on multinet samples during POLARSTERN cruise ANT-XXIX/7
Relative digestive gland length to carapax length of Euphausia superba larvae during POLARSTERN cruise ANT-XXIX/7 Open
Relative digestive gland length to carapax length of Euphausia superba larvae during POLARSTERN cruise ANT-XXIX/7
Circadian clock involvement in zooplankton diel vertical migration, link to supplementary material Open
Genetic clocks are a ubiquitous ancient and adaptive mechanism enabling organisms to anticipate environmental rhythms and to regulate behavioral, physiological and behavioral processes accordingly. Whilst terrestrial circadian clocks are w…
Chorophyll a and particulate organic carbon measured on water bottle samples during POLARSTERN cruise ANT-XXIX/7 Open
Chorophyll a and particulate organic carbon measured on water bottle samples during POLARSTERN cruise ANT-XXIX/7
Less Antarctic sea ice may not mean fewer krill Open
A dominant Antarctic ecological paradigm suggests that winter sea ice is the feeding ground for krill larvae. However, several recent observations conflict with this hypothesis. Our study presents the first direct evidence that winter sea …
Abundance of Euphausia superba larvae measured at ice station PS81/566 during POLARSTERN cruise ANT-XXIX/7 Open
Abundance of Euphausia superba larvae measured at ice station PS81/566 during POLARSTERN cruise ANT-XXIX/7
Clock genes in a north Atlantic key zooplankter - Expression during overwintering in a high Arctic fjord Open
The copepod Calanus finmarchicus plays a crucial role in the north Atlantic food web, channelling energy from phytoplankton primary production to higher trophic levels including commercially important fish stocks like herring and cod. The …