A planktonic Oscillatoria species from Mississippi catfish ponds that produces the off-flavor compound 2-methylisoborneol

Bioassay-guided isolation of anti-algal constituents from Inula helenium and Limonium myrianthum

“…2 Most of the pond-raised channel catfish production in the USA occurs in Mississippi and Alabama. The MIB-producing cyanobacterium Oscillatoria perornata has been attributed as the primary cause of MIB-related off-flavor in pond-raised catfish in west Mississippi, 3 and O. perornata is also prevalent in catfish ponds in east Mississippi and west Alabama. 4 The most common management approach used by catfish farmers to manage musty off-flavor is the application of algaecides such as copper-based products (e.g., copper sulfate, chelated-copper compounds) and diuron [N'-(3,4-dichlorophenyl)-N,N-dimethyurea] to reduce the abundance of O. perornata.…”

2-Methylisoborneol production characteristics of Pseudanabaena sp. FACHB 1277 isolated from Xionghe Reservoir, China

“…The cyanobacterial genera reported to produce 2-MIB belong to Oscillatoria (Martin et al 1991), Phormidium (Yagi et al 1983), Planktothrix (Tucker 2000), Pseudanabaena (Izaguirre and Taylor 1998), Lyngya (Tabachek and Yurkowski 1976), Leptolyngbya (Taylor et al 2006), Hyella (Izaguirre and Taylor 1995), and Synechococcus (Taylor et al 2006). Although cyanobacteria known to produce 2-MIB include a variety of planktonic and attached species, many of the known cyanobacterial producers are nonplanktonic.…”

“…The discovery of planktonic 2-MIB producers was originally made in Japan (Yagi et al 1983;Negoro et al 1988), and later in southern USA (Martin et al 1991) and Australia (Baker et al 1994). Moreover, in the last 20 years, many new planktonic cyanobacteria that produce 2-MIB have been found and isolated in various countries.…”

Cool Water Off-flavor Algae and Water Quality in Four Arkansas Commercial Catfish Farms

“…van Der Ploeg et al [15] found that the presence of geosmin is the main reason of off flavour in softwater ponds (total alkalinity and hardness 15-30 mg/L as CaCO 3 ) in east Alabama and MIB in hard-water ponds (total alkalinity and hardness 150-300 mg/L as CaCO 3 ) west Mississippi. Oscillatoria chalybea was identified responsible for producing 2-methylisoborneol in Mississippi catfish ponds [16,17], whereas, Anabaena circinalis and Pseudanabaena limnetica were observed in commercial catfish ponds in the Mississippi-Alabama Blackland Prairie region [18]. Geosmin production by Anabaena circinalis has been identified in previous studies [19,20] and MIB production by Pseudanabaena limnetica in a drinking water reservoir in southern California [21].…”