Freshwater and brackish water fishes of Sakhalin Island (Russia) in inland and coastal waters: an annotated checklist with taxonomic comments

Abstract

Based on a critical analysis of scientific publications for the last 200 years and on the collected specimens, a complete annotated list of both typical freshwater ichthyofauna of Sakhalin Island, with the inclusion of marine species that can be found in brackish coastal waters, is reported for the first time. The annotated list includes 226 species classified in three classes, 26 orders, 68 families, 29 subfamilies, and 148 genera. For 160 species, information is provided on collection samples deposited in various museums around the world, 36 of which are type specimens. For each species, conservation status (according to IUCN Red List of Threatened Species and the Red Book of the Sakhalin region), zoogeographic characteristics (distribution within Sakhalin Island and globally), abundance and commercial value are given. For a number of species, more detailed information on synonymy and nomenclature is provided. The study area is located in the western North Pacific and includes the entire coast of Sakhalin Island in the Sea of Okhotsk and the northern Sea of Japan, as well as the adjacent Sea of Okhotsk coast of northern Hokkaido, Japan.

First record of Sebastes schlegelii Hilgendorf, 1880 along the Turkish Black Sea coast – new addition to the alien species inventory

“…Sebastes schlegelii is mainly a marine species inhabiting depths ranging 3 to 100 m and can also be found in brackish waters and even entering estuaries of rivers, which is one of the most common rockfishes in the Northwestern Pacific coasts (Parin et al, 2002;Dyldin et al, 2021). It can attain a total length of 65 cm and over 3 kg in weight (Froese Pauly, 2023).…”

“…along the Turkish coast, an increase of 25% in the alien inventory was observed during the last decade (2010-2020), indicating the rapid changes in the local diversity and the necessity of urgent measures to be taken (Çınar et al, 2021). Sebastes schlegelii can survive wide ranges of temperatures (5° to 28°C; Chen et al, 2021) and is highly tolerant to waters with varying salinities (i.e., estuaries, brackish waters; Dyldin et al, 2021), and Black Sea ecosystem perfectly meet these conditions. As a precautionary approach, every single alien species, casual or established, should be treated as potential invaders, underlining the necessity and importance of carrying out bioecological research to better understand their life histories.…”

On validity of species of the genus Cleisthenes (Pleuronectiformes: Pleuronectidae)

“…Со ссылкой на классификацию Pleuronectidae как валидный вид C. pinetorum отмечают в дальнейшем у берегов Кореи [Kim, Youn, 1994], по поимкам из вод Японского моря -у г. Хаги [Sonoyama et al, 2020], из западной и юго-западной части о. Сахалин (включая заливы Анива и Терпения) [Dyldin et al, 2021], в тематическом исследовании о разнообразии камбал Японского моря . На основе неполной нуклеотидной последовательности 16S pРНК и полных последовательностей Со-1 и Cyt-b филогенетические отношения рыб сем.…”