TY - JOUR AU - Athibai, Sujeephon AU - Segers, Hendrik AU - Sanoamuang, La-orsri PY - 2013/08/26 Y2 - 2024/03/28 TI - Diversity and distribution of Brachionidae (Rotifera) in Thailand, with a key to the species JF - Journal of Limnology JA - J Limnol VL - 72 IS - s2 SE - Freshwater Invertebrates Congress DO - 10.4081/jlimnol.2013.s2.e17 UR - https://www.jlimnol.it/jlimnol/article/view/jlimnol.2013.s2.e17 SP - e17 AB - We investigated the diversity of brachionid rotifers in Thailand. Rotifers were collected from a wide range of habitat types (294 sites, 508 samples) including canals, lakes, peat swamps, ponds, reservoirs, rice fields, rivers, swamps and temporary ponds from April 1998 to January 2004. Twenty-eight species including 11 infrasubspecific forms belonging to five genera were identified. The most frequently encountered species was <em>Brachionus falcatus</em> (50.7% of the sampling sites), followed by <em>Keratella cochlearis</em> (50%), <em>B. angularis</em> (49.7%), <em>K. tropica</em> (46.3%) and <em>B. forficula</em> (45.9%). Less frequently encountered species were <em>B. caudatus</em>, <em>B. durgae</em> and <em>B. urceolaris</em>. These species were found in low abundances and only in a single site. Two sites in the Northeast – Nong Changpeuak and Bueng Srithat – recorded the greatest richness with 15 taxa, whereas no brachionid rotifers were found in 31 sites. On average, the species richness was five taxa per sampling site. A key to the genera and species of Thai brachionid rotifers is provided. ER -