Scholarlink

<p><i>Apocryptodon madurensis</i> (Bleeker, 1849) (Oxudercinae) is an estuarine mudskipper inhabiting littoral areas across the tropical and subtropical Indo-West Pacific. This study provides the first documentation of the morphology of its larval stage, with supplementary observations on a juvenile and their habitat, and seasonal occurrence. A total of 32 individuals, including 31 postflexion larvae, 13.4–15.8&#xa0;mm standard length (SL), and one 15.4&#xa0;mm SL juvenile, were recorded from the Gulf of Tonkin in Vietnam. During June and July (summer 2021, 2023, 2024), larvae and a juvenile occurred in intertidal flats near the mouths of streams with muddy-sandy or muddy substrates. The larvae were characterized by having an elongated, laterally compressed body with 26 myomeres, a mid-ventrally positioned anus, a prominent gas bladder, and dorsal and anal fins separated from the caudal fin, with unique fin ray counts, and a paired row of melanophores along the anal fin ray base. These findings provide the first description of the larval morphology of <i>A. madurensis</i>, facilitating future identification studies and contributing to a better understanding of the species’ early life history for ecological and conservation purposes.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

First Description of Larval Morphology of Apocryptodon madurensis (Gobiiformes: Oxudercidae: Oxudercinae) from Vietnam

  • 期刊论文

  • 发表日期：

    2026年6月29日

查看全文
  • Thanh Trung Tran,
  • Linh Thuy Nguyen,
  • Thuy Thi Ta,
  • Anh Thuy Thi Tran,
  • Donna M. Guarte-Valida,
  • Nam Thanh Nguyen

摘要

Apocryptodon madurensis (Bleeker, 1849) (Oxudercinae) is an estuarine mudskipper inhabiting littoral areas across the tropical and subtropical Indo-West Pacific. This study provides the first documentation of the morphology of its larval stage, with supplementary observations on a juvenile and their habitat, and seasonal occurrence. A total of 32 individuals, including 31 postflexion larvae, 13.4–15.8 mm standard length (SL), and one 15.4 mm SL juvenile, were recorded from the Gulf of Tonkin in Vietnam. During June and July (summer 2021, 2023, 2024), larvae and a juvenile occurred in intertidal flats near the mouths of streams with muddy-sandy or muddy substrates. The larvae were characterized by having an elongated, laterally compressed body with 26 myomeres, a mid-ventrally positioned anus, a prominent gas bladder, and dorsal and anal fins separated from the caudal fin, with unique fin ray counts, and a paired row of melanophores along the anal fin ray base. These findings provide the first description of the larval morphology of A. madurensis, facilitating future identification studies and contributing to a better understanding of the species’ early life history for ecological and conservation purposes.