Records of shallow-water marine invertebrates from French Frigate Shoals, Northwestern Hawaiian Islands with a note on nonindigenous species from NOWRAMP 2000 surveys at 39 sites and a March 2002 survey at a single site (NODC Accession 0001083)

In September of 2000, the Northwest Hawaiian Islands Rapid Assessment and Monitoring Program (NOW-RAMP) Expedition surveyed French Frigate Shoals (FFS) and a number of the remaining Northwest Hawaiian Islands (NWHI). At FFS, marine surveys were conducted at 39 stations by three different Rapid Ecological Assessment teams from two separate research vessels, the Townsend Cromwell (11 -25 Sep 2000) and the Rapture (23- 27 Sep 2000). An additional study of the seawall at Tern Island was conducted in March 2002. A total of 618 marine invertebrate taxa were collected and identified, about 75% to specific level. Of the 622 taxa identified, 502 are considered new records for FFS and perhaps 10 to 20% of these may be new records for the Hawaiian Archipelago. Of these new records, as many as 50 species may be undescribed and so far known only from FFS. Most of material collected by NOW-RAMP from the NWHI remains to be examined, and therefore no conclusions can be drawn yet regarding the distribution of these species throughout the island chain. Two species considered to be nonindigenous, the hydroid Pennariadisticha, and the barnacle Ba/anus reticulatus, were found at FFS. A number of specimens of some taxonomic groups collected from FFS remain to be examined thoroughly by specialists, most notably the polychaetes, which will certainly increase the final species tally. Further study will also be required of the 150 taxa which could not be identified to species level at the time of this report.

2000年9月，西北夏威夷群岛快速评估与监测计划（Northwest Hawaiian Islands Rapid Assessment and Monitoring Program, NOW-RAMP）考察队对弗伦奇护卫舰浅滩（French Frigate Shoals, FFS）及其余若干西北夏威夷群岛（Northwest Hawaiian Islands, NWHI）开展了综合科考调查。在弗伦奇护卫舰浅滩，来自两艘研究船“汤森德·克伦威尔号（Townsend Cromwell，2000年9月11日至25日）”与“拉普捷号（Rapture，2000年9月23日至27日）”的3支快速生态评估（Rapid Ecological Assessment）小组，共设置39个站位开展海洋调查。2002年3月，团队还针对燕岛（Tern Island）的海堤开展了一项补充研究。本次调查共采集并鉴定了618个海洋无脊椎动物分类单元（marine invertebrate taxa），其中约75%被鉴定至物种水平。在已鉴定的622个类群中，有502个被视为弗伦奇护卫舰浅滩的新记录，其中约10%至20%可能为夏威夷群岛的新记录。在这些新记录物种中，多达50个可能为未描述物种，且目前仅在弗伦奇护卫舰浅滩有发现。西北夏威夷群岛快速评估与监测计划从西北夏威夷群岛采集的大部分标本仍有待进一步检视，因此目前尚无法得出这些物种在整个岛链内的分布结论。科考队在弗伦奇护卫舰浅滩还发现了两种非本土物种：水螅类（hydroid）的Pennaria disticha以及藤壶（barnacle）的Balanus reticulatus。从弗伦奇护卫舰浅滩采集的部分类群标本仍有待专家全面检视，其中多毛类环节动物（polychaetes）尤为典型，该类群的全面检视无疑将提升最终统计的物种总数。此外，本报告撰写时尚未鉴定至物种水平的150个类群，也有待后续开展进一步研究。