Spondyliosoma cantharus (Linnaeus, 1758)

Iftime, Alexandru & Oţel, Vasile, 2025, An annotated systematical checklist of the Romanian ichthyofauna, Zootaxa 5654 (1), pp. 1-64 : 42-43

Spondyliosoma cantharus (Linnaeus, 1758)

A native marine species, sporadically found in Romanian Black Sea waters; absent or very rare in later years (Tortonese & CautiȘ 1967; Maximov & Zaharia 2010).

ORD. LOPHIIFORMES

Fam. Lophiidae

Lophius piscatorius Linnaeus, 1758

A native marine species, found very rarely in Romanian Black Sea waters ( Radu et al. 2008; Yankova et al. 2014).

3 This source does not identify the species, but the images are good enough to determine that this is S. maena following the criteria of Șalcioğlu et al. 2021.

B) Non-native species without evidence for independent reproduction (including those kept/stocked in open-water aquaculture, i.e. fishponds and lake stocking) and/or persistence

OSTEICHTHYES

ORD. ACIPENSERIFORMES

Fam. Acipenseridae

Acipenser baeri Brandt, 1869

Occasionally escaped from aquaculture—in Prut, from Ukraine ( Iftime & Iftime 2021, and literature quoted therein).; also frequently stocked in various lakes throughout the country (see, e.g., Balta Corata 1 2022, Cabane Harghita 2025, Vladimirescu 2013).

Fam. Polyodontidae

Polyodon spathula (Walbaum, 1792)

Occasionally escaped from aquaculture, e.g. in ArgeȘ, the Danube ( Iftime & Iftime 2021).

ORD. CYPRINIFORMES

Fam. Catostomidae

Subfam. Ictiobinae

Ictiobus bubalus (Rafinesque, 1818)

A non-native species, previously maintained in aquaculture (Nucet, Dâmbovița county; Danube Delta ) but apparently no longer present ( Iftime & Iftime 2021).