- 期刊
- OpenAccess
A Newly Recorded Species Dendrophysa russelii (Cuvier 1829) from Chiku Lagoon, Taijiang National Park, Taiwan
台江國家公園七股潟湖新紀錄種：勒氏枝鰾石首魚（Cuvier 1829）
摘要
Dendrophysa russelii (Cuvier 1829), the goatee croaker, was discovered during a fish fauna survey in Chiku Lagoon, Taijiang National Park, from November, 2018, to December, 2022. The species is widespread and numerous in the South China Sea, where it is found in the tropical seas stretching from Southeast Asia to Hainan Island and southern China. Prior research revealed goatee croaker distribution in the Pearl River in Guangdong (e.g. ca.22°21'N, Hong Kong), China; consequently, this is a new record in Taiwan collected in Chiku Lagoon (ca.23°09'N). The total catch of eight samples, including one juvenile and seven in pre-adult stage, varied from 57.33 to 133.22 mm SL in standard length, indicating that they may have followed the South China Sea Current northward from the South China Sea to the Taiwan Strait. The goatee croaker could be distinguished by a single pointed barbel on the chin, a dark brown broad band on the nape, and a long and stiff second anal spine, with a range of 38.2 to 48.1% of head length. Detailed morphometric and meristic data for this species are provided. This report also includes a list of sciaenid occurrences in Chiku Lagoon, both inshore and in the lagoon.
並列摘要
2018年11月至2022年12月於台江國家公園的七股潟湖進行的魚類組成調查研究中，發現了勒氏枝鰾石首魚（Dendrophysa russelii）。此魚種廣泛分布於南海熱帶海域，從東南亞延伸到海南島和中國南部。過去的研究顯示勒氏枝鰾石首魚可向北分布於中國廣東的珠江流域（如香港，約北緯ca.22°21'N）。本研究在七股潟湖內（北緯23°09'N）捕獲的勒氏枝鰾石首魚為台灣海域的新紀錄種，共捕獲到八尾樣本，包含一尾幼魚和七尾亞成魚，標準體長介於57.33到133.22mm之間。牠們可能是隨南海表層水來到台灣西部沿海。勒氏枝鰾石首魚可由其頦部下方具有的單一尖鬚、頸部有深棕色寬帶以及臀鰭的第二硬棘佔頭長的38.2至48.1%來區分。本報告提供勒氏枝鰾石首魚詳細的測量和計數形質的數據，以及七股潟湖內及其近岸所採獲到的石首魚科魚類的清單。