New data on the morphological differences of anchovy eggs (Engraulis encrasicolus L) in the Black Sea

Abundance and distribution of eggs and larvae of anchovy (Engraulis encrasicolus, Linnaeus, 1758) and horse mackerel (Trachurus mediterraneus, Steindachner, 1868) on the coasts of the eastern Black Sea

“…This was similar to spawning periods determined in other surveys carried out in the region (Demir, 1974;Yüksek, 1993;Başar, 1996;Gordina et al, 1997).…”

“…It can be said that reproduction was more intense in the eastern Black Sea during the 2006 spawning season compared to other regions, and that this variance is due to the fact that stocks preferred this region as a spawning area compared to the past. When the results of this investigation were taken into account, it was seen that reproduction in the eastern Black Sea fields was increasing in addition to in the northwestern parts of the Black Sea, which is the major spawning area for anchovies (Arım, 1957;Niermann et al, 1994;Gordina et al, 1997;Başar and Okumuş, 1997;Kideys et al, 1999;Satılmış et al, 2003).…”

Recent changes in the spawning grounds of Black Sea anchovy, Engraulis encrasicolus

“…It should be noted that apart from the two well‐known anchovy forms in the Black Sea, Gordina et al . () found smaller, elongated eggs in the south‐western Black Sea. As a result of similarities in the egg morphometrics, they claimed that the third form of anchovy spawning in the Black Sea might actually have migrated from the Sea of Marmara.…”

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“…This barrier along with ecological condition cause high haplotype frequencies in the Black Sea and the Marmara Sea. The European anchovy that be represented with two subdivisions in the Black Sea is developed various migration scenarios due to migration characteristic between coasts of several countries as a sharing-stock (Ivanova et al 2013;Gordina, Nikolskiy, Niermann, Bingel, & Subbotin, 1997). This study aims to reveal anchovy's mixed-stock forming areas in the Black Sea along with migration route and migration time of the populations of Azov, Marmara and Black Sea.…”

“…In summer, the Azov and Marmara Sea anchovies are found in the coasts of the Black Sea, Turkey (Gordina, 1997;Ivanova, et.al., 2013). Gordina (1997) found eggs of the Marmara Sea anchovy in the Black Sea and stated that the Marmara Sea anchovy is migrates to the Black Sea for reproduction in summer. Likewise, our study showed that haploids of the Marmara Sea anchovy exist in the Black Sea in summer season.…”