Growth limitation in young Euphausia superba under field conditions
نویسندگان
چکیده
منابع مشابه
Growth Limitation in Young Euphausia superba under Field Conditions
Growth rates of late furcilia and juvenile Antarctic krill (Euphausin superbn Dana) in the spring and summer were related to food quantity and quality. The 4 yr covered by this study (1991-1992, 1993-1994: 1994-1995, and 1995-1996) were part of the seasonal time series of the Palmer Long-Term Ecological Research program. Chlorophyll a concentrations represented food quantity: and accessory phot...
متن کاملEuphausia superba
The Antarctic krill (Euphausia superba Dana 1852) is widely distributed throughout the southern ocean, where it provides a key link between primary producers and upper trophic levels and supports a major commercial fishery. Despite its ecological and commercial importance, genetic population structure of the Antarctic kill remains poorly described. In an attempt to illuminate genetic markers fo...
متن کاملThe Antarctic Krill Euphausia superba Shows Diurnal Cycles of Transcription under Natural Conditions
BACKGROUND Polar environments are characterized by extreme seasonal changes in day length, light intensity and spectrum, the extent of sea ice during the winter, and food availability. A key species of the Southern Ocean ecosystem, the Antarctic krill (Euphausia superba) has evolved rhythmic physiological and behavioral mechanisms to adapt to daily and seasonal changes. The molecular organizati...
متن کاملEuphausia superba in the laboratory
Using systems for long-term maintenance of Antarctic krill Euphausja superba in aquana , positive growth was measured in a large number of specimens under controlled conditions. The first moult always showed the greatest growth increment. The high laboratory growth rates agreed with previous field investigations. Often-reported 'abnormal' slow and predominantly negative growth was probably due ...
متن کاملOverwintering growth and development of larval Euphausia superba: an interannual comparison under varying environmental conditions west of the Antarctic Peninsula
Growth, molting, and development of larval Antarctic krill were investigated near Marguerite Bay during four cruises in austral autumn and winter 2001 and 2002, as part of the US Southern Ocean GLOBEC program. Overwintering survival of larvae has been linked to annual sea-ice formation and extent, as sea-ice biota may provide food when other sources are scarce in the water column. During autumn...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Limnology and Oceanography
سال: 2000
ISSN: 0024-3590
DOI: 10.4319/lo.2000.45.1.0031