Food supply of the Black Sea small pelagic fish (Trophic Relationships and Food Supply of Heterotrophic Animals in the Pelagic Ecosystem of the Black Sea)
Yazarlar (4)
E Shulman G
V Yuneva T
Bat L
E Kıdeys A
| Bölüm Adı | Food supply of the Black Sea small pelagic fish | ||
| Kitap Adı | Trophic Relationships and Food Supply of Heterotrophic Animals in the Pelagic Ecosystem of the Black Sea | ||
| Bölüm Sayfaları | 222-227 | ||
| Kitap Türü |
Kitap Bölümü
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| 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 |
| During recent decades, the Black Sea has been affected by many negative factors that strongly changed the condition of its ecosystem. Especially trophic relationships in the Black Sea pelagic system became very vulnerable influencing the food supply, productivity and abundance of many species and populations of this marine basin. Food is one of most important link between biota and its environment. In this monograph, the role and variability of trophodynamic processes that effect the well-being (health) of main heterotrophic components of ecosystem were analysed in detail for a few key species as indicators for estimation of ecosystem condition in whole. These are most significant mass species of the Black Sea pelagic ecosystem. Among copepods this is Calanus euxinus that dominates the mesozooplankton which makes up the fodder base of planktivorous fishes. Among gelatinous these are medusa Aurelia aurita and the alien ctenophores Mnemiopsis leidyi and Beroe ovata which affected strongly mesozooplankton composition. Lastly among fishes the anchovy Engraulis encrasicolus ponticus and sprat Sprattus sprattus phalericus that dominate small pelagic fishery. We considered in this monograph:• Diel feeding behaviour, in situ feeding rate of Calanus euxinus and impact of mesozooplankton on primary production and phytoplankton biomass.• The effect of vertical migrations on energy budget and its components in C. euxinus; metabolic substrates used in catabolic processes under both aerobic and hypoxic conditions, the role of reserve lipids and effect of abiotic factors on individual growth and population structure of this species.• … |
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