Interannual changes of lipid content in the Black Sea sprat (Trophic Relationships and Food Supply of Heterotrophic Animals in the Pelagic Ecosystem of the Black Sea)
Yazarlar (6)
N Nıkolsky V
V Yuneva T
M Schepkına A
Bat L
E Kıdeys A
E Shulman G
| Bölüm Adı | Interannual changes of lipid content in the Black Sea sprat | ||
| Kitap Adı | Trophic Relationships and Food Supply of Heterotrophic Animals in the Pelagic Ecosystem of the Black Sea | ||
| Bölüm Sayfaları | 227-246 | ||
| Kitap Türü | Kitap Bölümü | ||
| Kitap Alt Türü | Alanında uluslararası yayınlanan kitap bölümü | ||
| Kitap Niteliği | Diğer uluslararası bilimsel kitap | ||
| Kitap Dili | İngilizce | Basım Tarihi | 01-2009 |
| DOI Numarası | – | ISBN | 978-605-89206-0-6 |
| Basıldığı Ülke | Türkiye | Basıldığı Şehir | İstanbul |
| UAK Araştırma Alanları |
Hidrobiyoloji
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| Özet |
| The sprat Sprattus sprattus phalericus (Risso) is one of the most abundant and commercially important fish species in the Black Sea. It also plays a significant role in pelagic ecosystem as a link between the plankton community and top predators (dolphins, spiny dogfish, mackerel, whiting, turbot etc). Its early life stages are components in diets of horse mackerel and predatory zooplankton (Golenchenko, 1940; Chayanova, 1958; Prodanov et al., 1997). As a boreal species, the Black Sea sprat prefers the coldest waters and inhabits mainly the CIL layer below the thermocline (Aslanova, 1954; Yur’ev, 1979; Sorokin, 2002). It has a life span up to 5 years, reaches sexual maturity at one year old and reproduces mainly during cold months between November and March (Pavlovskaya, 1952; Stoyanov, 1953; Aslanova, 1954; Gorbunova, 1958, Dekhik, 1973; Avşar and Bingel, 1994.). The sprat feeds on zooplankton (mainly Copepoda) the hole year round, but more intensively after reproduction (Lipskaya, 1960). Increasing growth of the fish occurs just in spring as well as intensive accumulation of lipids in its body. The level of lipid reserves that fish accumulate to the end of their feeding period is an integrated indicator of their food supply (Shulman, 1974).The Black Sea sprat starts to accumulate lipids since February–March when a new annual production cycle begins in the sea. Then the lipid accumulation becomes slower and usually achieves its maximal values in June–July (see Fig. 5.1). Later, during its spawning period in winter, sprat utilizes almost completely the lipid reserves accumulated during summer. Further, this cycle repeats again … |
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