Asajirella gelatinosa (Oka, 1891)

Chae, Hyun Sook, Kil, Hyun Jong & Seo, Ho Jin Yang and Ji Eun, 2024, Freshwater bryozoans of Korea-observations on living colonies and three new records, Journal of Species Research 13 (1), pp. 50-60 : 52

1. Asajirella gelatinosa (Oka, 1891) ṘIJm로ḓ끼ḇNj

Material examined. Mujigae Bridge , 15 September 2014 ; Daecheong Reservoir , 17 September 2014 ; Chopyeong Reservoir , 6 October 2014 ; Andeok Reservoir , 29 May 2015 ; Seoji Reservoir , 2 July 2015 ; Seungchon Weir , 10 October 2015 ; Daegyo Stream , 18 October 2015 ; Chungju Reservoir , 2 November 2015 ; Gwanghyewon Reservoir , 4 April 2016 ; Daetgol Reservoir , 6 April 2016 ; Baekgok Stream , 22 September 2016 ; Sejong Weir , 8 June 2016 ; Maok Reservoir , 16 August 2016 ; Hyangho Reservoir , 17 August 2016 ; Sunpo Wetland , 18 August 2016 ; Bongseon Reservoir , 11 October 2016 .

Substratum. Wood, water grass and rock.

Remarks. Asajirella gelatinosa was found not only in freshwater, but also in a brackish environment, Hyangho Reservoir with high values of salinity and conductivity (salinity: 8.56 ppt and conductivity: 14,878 μS/cm). The Hyangho Reservoir is influenced by the East Sea nearby because it is located next to Hyangho Beach. Only Victorella pavida , which is known to occur in a brackish water ( Wood and Okamura, 2005), was reported in this reservoir so far ( Jung et al., 2017). Since there was no previous report of A. gelatinosa occurring in brackish environment, this species needs consist monitoring in brackish waters.

Distribution. Korea, Japan, Taiwan, Thailand, India, Ceylon, Panama, Indonesia, and West Java.