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首页> 美国政府科技报告 >Comprehensive Evaluation of Shallow Reef Fish Populations at French Frigate Shoals and Midway Atoll, Northwestern Hawaiian Islands (1992/93, 1995-2000)
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Comprehensive Evaluation of Shallow Reef Fish Populations at French Frigate Shoals and Midway Atoll, Northwestern Hawaiian Islands (1992/93, 1995-2000)

机译：夏威夷西北部群岛法国护卫舰浅滩和中途岛环礁浅礁鱼群的综合评价（1992 / 93,1995-2000）

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摘要

This document represents the sixth and last of a series of Honolulu Laboratory reports providing estimates of shallow (lesser than 15-m-deep) reef fish population densities based on diver surveys conducted at roughly annual intervals at two sites (French Frigate Shoals (FFS) and Midway Atoll (Midway) in the Northwestern Hawaiian Islands (NWHI)). The purpose of the time series has been to develop the capability to characterize the standing stock densities of shallow reef fishes, as one potentially important component of the monk seal (Monachus schauinslandii) forage base with precision sufficient to detect twofold changes over a decadal time scale when sampled at a yearly frequency. This recent series of surveys began in 1992 (at FFS) and 1993 (Midway). Updated results for 3 survey year (1998-2000, inclusive), plus a comprehensive evaluation of key variables for the entire 8/9-yr time series, are herein presented. Statistical analyses emphasize those temporal and spatial variables likely to have the greatest influence on the distribution and abundance of reef fishes as a forage base. The results of two types of special diver-survey are also provided: (1) a one-time (August 1998) survey of the fishes and macroinvertebrates (potential monk seal prey) in deep (52, 61 m) talus slope habitat at FFS; and (2) a methods-calibration survey conducted at the two sites in the year 2000.

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