DAO 146:107-115 (2021) - DOI: https://doi.org/10.3354/dao03625
Association of the alga Cladogonium sp. with a multifactorial disease outbreak in dwarf shrimp (Neocaridina davidi)
Julia Bauer*, Verena Jung-Schroers, Felix Teitge, Mikolaj Adamek, Dieter Steinhagen
ABSTRACT: This study outlines a multifactorial disease outbreak in a population of the freshwater shrimp Neocaridina davidi, with the focus on a rarely described parasitic alga. Within this multifactorial disease outbreak, low but consistent mortality was observed. During microscopic examination, an infection of the shrimp with bacterial and fungal-like agents was diagnosed. Furthermore, the green alga Cladogonium sp. was found in pleopodal regions. The alga compromised the body surface of the shrimp, and its rhizoids penetrated the chitin shell and reached into the subcutaneous tissue. This might be a first indication of a parasitic lifestyle. In addition to a morphological description, sequencing data are presented which allow the taxonomic classification of the organism within the order Trentepohliales.
KEY WORDS: Freshwater shrimp · Neocaridina · Green alga · Cladogonium · Trentepohliales
Full text in pdf format  | Cite this article as: Bauer J, Jung-Schroers V, Teitge F, Adamek M, Steinhagen D
(2021) Association of the alga Cladogonium sp. with a multifactorial disease outbreak in dwarf shrimp (Neocaridina davidi). Dis Aquat Org 146:107-115. https://doi.org/10.3354/dao03625
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