Zoogeographical relationships of the littoral ascidiofauna at the Antarctic Peninsula, in the Scotia Arc and in the Magellan region

Three Spanish Antarctic research cruises (Ant-8611, Bentart-94 and Bentart-95) were carried out in the South Shetland Archipelago (Antarctic Peninsula) and Scotia Arc (South Orkney, South Sandwich and South Georgia archipelagos) on the continental shelf and upper slope (10-600 m depth). They have co...

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Bibliographic Details
Published in:Scientia Marina
Main Authors: Alfonso A. Ramos-Esplá, Juan A. Cárcel, Mercedes Varela
Format: Article in Journal/Newspaper
Language:English
Published: Consejo Superior de Investigaciones Científicas 2005
Subjects:
ascidians
antarctic
scotia arc
magellan
biogeography
Aquaculture. Fisheries. Angling
SH1-691
Antarctic
The Antarctic
Antarctic Peninsula
Antarc*
Online Access:https://doi.org/10.3989/scimar.2005.69s2215
https://doaj.org/article/2f4e420e84804959ad12484e326b770e
Description
Summary:Three Spanish Antarctic research cruises (Ant-8611, Bentart-94 and Bentart-95) were carried out in the South Shetland Archipelago (Antarctic Peninsula) and Scotia Arc (South Orkney, South Sandwich and South Georgia archipelagos) on the continental shelf and upper slope (10-600 m depth). They have contributed to our knowledge about ascidian distribution and the zoogeographical relationships with the neighbouring areas and the other Subantarctic islands. The distribution of ascidian species suggests that the Scotia Arc is divided into two sectors, the South Orkney Archipelago, related to the Antarctic Province, and the South Georgia Archipelago (probably including the South Sandwich Archipelago), which is intermediate between the Antarctic Province and the Magellan region.

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