INVESTIGADORES
TAPELLA Federico
artículos
Título:
Decapod Reproduction and Distribution
Autor/es:
ROMERO, M.C.; TAPELLA, F.; LOVRICH; THATJE, S.
Revista:
Berichte zur Polarforschung
Editorial:
Alfred- Wegener-Institut fur Polar- und Meeresforschung
Referencias:
Año: 2003 vol. 462 p. 67 - 72
ISSN:
1618-3193
Resumen:
The Antarctic Convergence constitutes the distributional limit for most Magellanic and Atlantic
decapod species. A total of 18 benthic decapod species belonging to 10 families and 4
infraorders were collected during the cruise. We found 4 new caridean morphotypes
suspected to be new species. At the infraorder level, we can clearly divide the benthic
decapod fauna of the South Atlantic and the Scotia Arc into two different distributional areas:
the northern part of the Antarctic Convergence still representing Reptantia (anomuran and
brachyura crabs), whereas south of the convergence only caridean shrimps (Natantia) were
found. On the species level, we observed an extent of the Magellanic decapod fauna
eastwards. The shallow waters off the Sandwich Islands showed an extremely poor decapod
fauna. Key species of benthic decapod crustaceans were found at different states of their
reproductive cycle. Differences in the reproductive condition of two geographically separated
populations of Notocrangon antarcticus were also detected. Differences in the size at gonadal
maturity of female Notocrangon antarcticus were also plausible between the populations of
South Georgia and South Orkneys Islands.
South Georgia and South Orkneys Islands.
South Georgia and South Orkneys Islands.
South Georgia and South Orkneys Islands.
maturity of female Notocrangon antarcticus were also plausible between the populations of
South Georgia and South Orkneys Islands.
South Georgia and South Orkneys Islands.
South Georgia and South Orkneys Islands.
South Georgia and South Orkneys Islands.
maturity of female Notocrangon antarcticus were also plausible between the populations of
South Georgia and South Orkneys Islands.
South Georgia and South Orkneys Islands.
South Georgia and South Orkneys Islands.
South Georgia and South Orkneys Islands.
maturity of female Notocrangon antarcticus were also plausible between the populations of
South Georgia and South Orkneys Islands.
South Georgia and South Orkneys Islands.
South Georgia and South Orkneys Islands.
South Georgia and South Orkneys Islands.
Notocrangon antarcticus were also detected. Differences in the size at gonadal
maturity of female Notocrangon antarcticus were also plausible between the populations of
South Georgia and South Orkneys Islands.
South Georgia and South Orkneys Islands.
South Georgia and South Orkneys Islands.
South Georgia and South Orkneys Islands.
Notocrangon antarcticus were also plausible between the populations of
South Georgia and South Orkneys Islands.