CARBON FLOW WITHIN PLANKTONIC FOOD WEB
Yazarlar (1)
Prof. Dr. Levent BAT Sinop Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
(Uluslararası alan indekslerindeki dergilerde yayınlanan tam makale)
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| Dergi Adı | BLACK SEA MARINE ENVIRONMENT: THE TURKISH SHELF | ||
| Makale Dili | – | Basım Tarihi | 01-2017 |
| Cilt / Sayı / Sayfa | 0 / 0 / 132–0 | DOI | – |
| Makale Linki | https://aperta.ulakbim.gov.tr/record/263142/files/Black_Sea_Book_2017_TUDAV_low.pdf#page=149 | ||
| UAK Araştırma Alanları |
Hidrobiyoloji
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| Özet |
| In aquatic environment, there are two main pathways by which carbon flows from autotrophic to heterotrophic organisms: the classical herbivorous food web and the microbial food web (Azam et al. 1983, Sherr et al. 1986, Legendre and Rassaulzadegan 1995). In the classical herbivorous food web, the carbon flows directly from large autotrophs to metazoans (Pomeroy 1974). In the microbial food web, the carbon flows from bacteria and small phytoplankton (< 20μm) to nano-microzooplankton and then to higher trophic levels (Azam et al. 1983, Calbet and Landry 2004). The importance of the nano-and micrograzers was first described in oligotrophic ecosystems, where autotrophs are dominated by smaller cells. However, since then, it has been recognized that these grazers (heterotrophic nanoflagellates and microzooplankton< 200 μm) also control lower level production and dynamics in productive coastal regions (Calbet and Landry 2004). They are also favourite prey for mesozooplankton in a range of aquatic environments, from the poles to upwelling regions (Stoecker and Capuzzo 1990; Atkinson 1996; Calbet and Saiz 2005). By this way they play significant roles in structuring plankton communities and in nutrient regeneration (Calbet and Saiz 2005, Calbet 2008). Making a distinction between the two historical perspectives, in the herbivorous food web the predators are metazoans, while in the microbial food web the predators are protozoans. An intermediate situation is called the multivorous food web, where both metazoan and protozoan consume both large and small cells (Legendre and Rassoulzadegan 1995). As a result of these … |
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