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為了瞭解台灣周邊海域仔稚魚群聚結構與水文環境之關係，本研究於2007年7月在台灣周邊海域62個測站進行仔稚魚採集與水文觀測，共採得仔稚魚3,614尾，分屬於93科190類，平均豐度為240.86 ± 217.48 ind./1000 m3。前十大優勢種類依次為石首魚科(Sciaenidae)佔總採樣尾數的10.44%、花鰹屬(Auxis spp.)佔8.58%、眶燈魚屬B型(Diaphus B)佔5.45%、鮃科(Bothidae)佔3.87%、犀鱈屬(Bregmaceros spp.)佔3.85%、鰕虎科(Gobiidae)佔3.46%、鰺科(Carangidae)佔2.88%、鰕虎科第I型(Gobiidae type 1)佔2.83%、隆頭魚科( Labridae)佔2.68%、玉筋魚科(Ammodytidae)佔2.03%，這十個類群合計佔仔稚魚總數的46.07%。整體而言，夏季時台灣周邊海域仔稚魚的種類豐度(abundance)呈現東、南邊低而西、北邊高的分布特徵，這個地理差異現象，反映出黑潮水與沿岸水的生物組成特徵，亦即西北海域種類豐度最高，種類歧異度(species diversity)低，反之東南海域種類豐度低而種類歧異度高。此外，黑潮於台灣東北部與東海陸棚交界處所形成之湧昇區，仔稚魚豐度與多樣性亦明顯升高。此外，由仔稚魚群聚與環境的相關之分析結果也發現，在台灣海峽澎湖以北的海域，其仔稚魚之種類組成受鹽度的影響，而台灣東部則受黑潮與黑潮支流的影響，導致種類組成受溫度變化的影響。

研究報告摘要(英) In order to understand the species composition and distribution of fish larvae assemblages in relation to environmental factors in the surrounding waters of Taiwan, sampling cruise was carried out at 62 stations around waters of Taiwan in July 2007. A total of 3614 larvae representing 190 taxa in 93 families were identified. The mean abundance was 240.86 ± 217.48 ind./1000 m3. Ten dominant taxa included Sciaenidae (10.44%), Auxis spp. (8.58%), Diaphus B (5.45%), Bothidae (3.87%), Bregmaceros spp. (3.85%), Gobiidae (3.46%), Carangidae (2.88%), Gobiidae type 1 (2.83%), Labridae (2.68%) and Ammodytidae (2.03%) which occupied 46.07% of the total larvae collected. In summer, geographical differences in the distribution of fish larvae abundance and species diversity around waters of Taiwan were observed. Higher abundance of fish larvae were found in the northwestern and northern waters off Taiwan, and lower abundance and higher species diversity were found in the eastern and southwestern waters off Taiwan, while the distribution pattern of species diversity were in the opposite. BIO-ENV analysis indicated that the species composition were mainly affected by salinity in the northwestern and northern waters off Taiwan, and were affected by temperature in the eastern and southwestern waters off Taiwan.