Interannual variability in the zooplankton community in Golubaya bay (Northeastern part of the Black Sea) in 2002–2012

Seasonal variation and taxonomic composition of mesozooplankton in the southern Black Sea (off Sinop) between 2005 and 2009

“…Within this group, two types are in the foreground: P. avirostris and P. polyphemoides. Until midsummer and autumn P. avirostris is dominant, whereas around September P. polyphemoides increases its dominance and maintains it during the winter-spring period (Ünal, 2002;Lebedeva et al, 2015;Üstün et al, 2016). The findings that we have obtained are consistent with the literature.…”

“…In 2005 and 2006, A. clausi and P. elongatus were dominant in the environment, but after 2007, it was observed that P. parvus became the most dominant species by increasing its dominance in the environment (28% in 2007, 30% in 2008, and 35% in 2009). It has been determined that P. parvus reaches the highest values in terms of abundance and biomass on the south Black Sea coast in autumn and on the northeastern Black Sea coast in winter (Ünal, 2002;Deniz and Gönülol, 2014;Yıldız and Feyzioğlu, 2014;Lebedeva et al, 2015;Üstün et al, 2016). In the present study, the highest values were observed in the autumn season.…”

“…In the northeastern coastal areas of the Black Sea, meroplankton larvae have been identified in the plankton from May to September. In spring and autumn, Bivalvia larvae dominated, while in summer, gastropod and Bivalvia larvae dominated the environment (Selifonova, 2006, 2012, Lebedeva et al, 2015. In the present study, it was determined that the first peak in terms of both abundance and biomass was seen in winter, and the second peak was seen in spring or autumn.…”

Juvenile Parasagitta setosa (J. Müller, 1847) (Chaetognatha) from Shallow Waters of the Southern Black Sea: Temporal Size Structure, Gonad Maturity, and Gut Content

“…Parasagitta (Syn: Sagitta) setosa is a Chaetognatha species commonly found in the Black Sea (Moldoveanu and Timofte, 2004;Arashkevich et al, 2014;Lebedeva et al, 2015;Stefanova, 2015;Yıldız and Feyzioglu, 2016;Üstün et al, 2018;Üstün et al, 2019). Although their distribution and daily migration model (Vinogradov et al, 1985;Vinogradov et al, 1986;Besiktepe and Unsal, 2000;Erkan et al, 2000;Mutlu, 2006;Marinova and Stefanova, 2009) has been well studied in the Black Sea, studies on sexual development and morphological characteristics (Feyzioğlu et al, 1998;Feyzioğlu et al, 2010), gut content (Dirts and Utkina, 1988;Vdodovich et al, 2018), genetic characteristics (Peijnenburg et al, 2004;Peijnenburg et al, 2006) and fatty acid composition (Şen Özdemir et al, 2020) are still limited.…”