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<p>This study reports the first documented occurrence of the invasive Trimac cichlid, <i>Amphilophus trimaculatus</i> (Günther, 1867) (Cichliformes: Cichlidae), from the Ulhas River near Karjat, Maharashtra, India (18° 54’ 28.68” N, 73° 19’ 23.02” E). Native to Central America, the species distribution extends from Laguna Coyuca in Mexico through El Salvador to the Río Lempa in Guatemala. During an experimental fishing effort, two individuals were collected, measuring 114.7–120.7&#xa0;mm in total length and weighing 31.7–40.5&#xa0;g. Its presence in the Ulhas River appears limited, with few individuals observed in December 2024 and March 2025. In the context of feeding habitat, it is a highly predatory non-native species with the potential to be more invasive than Tilapia. Proactive measures are essential to prevent its establishment and to protect the Ulhas River’s ecological integrity. The present study provides the first record of its presence in the Ulhas River.</p>

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New distributional record of the invasive three-spot cichlid, Amphilophus trimaculatus (Gunter, 1867) from Ulhas River, Maharashtra, India

  • 期刊论文

  • 发表日期：

    2026年4月9日

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  • Tandel Lata,
  • Sukham Monalisha,
  • Swati Choudhary,
  • Aimen Firdous,
  • A. M. Sajina,
  • Karankumar Ramteke,
  • Achal Singh,
  • Sangeeta Mandal

摘要

This study reports the first documented occurrence of the invasive Trimac cichlid, Amphilophus trimaculatus (Günther, 1867) (Cichliformes: Cichlidae), from the Ulhas River near Karjat, Maharashtra, India (18° 54’ 28.68” N, 73° 19’ 23.02” E). Native to Central America, the species distribution extends from Laguna Coyuca in Mexico through El Salvador to the Río Lempa in Guatemala. During an experimental fishing effort, two individuals were collected, measuring 114.7–120.7 mm in total length and weighing 31.7–40.5 g. Its presence in the Ulhas River appears limited, with few individuals observed in December 2024 and March 2025. In the context of feeding habitat, it is a highly predatory non-native species with the potential to be more invasive than Tilapia. Proactive measures are essential to prevent its establishment and to protect the Ulhas River’s ecological integrity. The present study provides the first record of its presence in the Ulhas River.