Origin and Evolution of Antarctic and Deep-Sea Macroinfauna: Systematics and Reproductive Patterns of Polychaetes

国际南极深海底栖生物多样性方案在2001-2002年南极季节开始在德国破冰船“北极号”上进行计划中的实地工作。 该方案的拟议研究涉及以下主题：⑴与南极大陆架有关的深海底栖动物的起源以及与大西洋和太平洋深海动物的联系; ⑵提出假说，解释深海的高度生物多样性; ⑶南大洋的深海底栖群落结构;（4）生物过程，包括底栖无脊椎动物的繁殖和幼体发育。 在这一计划内，拟议的工作将侧重于七个多毛类家庭。 在两次航行期间，将收集材料，绘制多毛类动物科的空间和水深分布图，同时采用地理信息系统绘图软件。 将研究所选多毛类科的系统学。 此外，还将观察幼虫和后幼虫阶段，以努力了解南极和深海多毛类的幼虫扩散模式。 这些信息将有助于了解这些家庭在南大洋的起源和演变。

The International Antarctic Benthic Deep-Sea Biodiversity Program begins planned field work on the German Icebreaker, R/V Polarstern during the 2001-2002 austral season. The proposed research for this program addresses the following themes: 1) the origins of the deep-sea benthic fauna in relation to the Antarctic shelf and linkages to the deep-sea faunas of the Atlantic and Pacific Oceans; 2) development of hypotheses to explain high biodiversity in the deep sea; 3) deep-sea benthic community structure in the Southern Ocean; and 4) biological process including reproduction and larval development of benthic invertebrates. Within this scheme, the proposed work will focus on seven polychaete families. During the course of two cruises, materials will be collected to map the spatial and bathymetric distributions of polychaete families while incorporating GIS mapping software. The systematics of the selected polychaete families will be examined. Furthermore, larval and post-larval stages will be observed in an effort to understand the mode of larval dispersal for Antarctic and deep-sea polychaetes. This information will contribute to an understanding of the origins and evolution of these families in the Southern Ocean.