A-3. Southern Ocean
U.S. GLOBEC planning for a program in the Southern Ocean is
well-developed (U.S. GLOBEC Report No. 5, 1991). U.S. research in the
Southern Ocean will be part of a larger GLOBEC International effort
involving many nations. The specific objectives of the U.S. GLOBEC
Southern Ocean program can be found in Table 5. The foci will be:
Pelagic taxa that participants at the 1991 GLOBEC Southern Ocean
workshop identified include the Antarctic krill (Euphausia superba) and
a salp (Salpa thompsoni). Benthic forms with both pelagic and benthic
larval stages among the bivalves, echinoderms, and crustaceans will also
be emphasized. Higher predators might include a commercially harvested
species (e.g., Champsocephalus gunnari), a nonharvested holopelagic
species (e.g., Pleurogramma antarctica), and a nonharvested near-shore
species (e.g., Notothenia neglecta). Other top predators should include
a variety of penguin species, the crabeater seal, and the Antarctic fur
seal. Further information can be found in U.S. GLOBEC Report No. 5.
GLOBEC International has held two meetings to develop an implementation
plan for a coordinated international Southern Ocean program. A report
from the first meeting has been published (GLOBEC International Report
No. 5, 1993), and a full plan for the Southern Ocean study should be
published in early 1995. A tentative schedule for the entire Southern
Ocean effort is shown in Table 2.
- investigations of the variability of sea-ice on the life cycles, productivity, distribution and abundance of Southern Ocean fauna, and
- the coupling between ocean circulation dynamics and population dynamics.