کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8886717 1627897 2018 48 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spatio-temporal reproducibility of the microbial food web structure associated with the change in temperature: Long-term observations in the Adriatic Sea
ترجمه فارسی عنوان
بازخوانی اسپکتیو-زمانی ساختار وب سایت مواد غذایی میکروبی مرتبط با تغییر دما: مشاهدات طولانی مدت در دریای
کلمات کلیدی
وب غذای میکروبی، درجه حرارت، گرمایش جهانی، تکرارپذیری در زمان، داده های بلند مدت، تجزیه و تحلیل خود ارگانیزم نقشه، دریای آدریاتیک،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی
چکیده انگلیسی
Global and atmospheric climate change is altering the thermal conditions in the Adriatic Sea and, consequently, the marine ecosystem. Along the eastern Adriatic coast sea surface temperature (SST) increased by an average of 1.03 °C during the period from 1979 to 2015, while in the recent period, starting from 2008, a strong upward almost linear trend of 0.013 °C/month was noted. Being mainly oligotrophic, the middle Adriatic Sea is characterized by the important role played by the microbial food web in the production and transfer of biomass and energy towards higher trophic levels. It is very important to understand the effect of warming on microbial communities, since small temperature increases in surface seawater can greatly modify the microbial role in the global carbon cycle. In this study, the Self-Organizing Map (SOM) procedure was used to analyse the time series of a number of microbial parameters at two stations with different trophic status in the central Adriatic Sea. The results show that responses of the microbial food web (MFW) structure to temperature changes are reproducible in time. Furthermore, qualitatively similar changes in the structure of the MFW occurred regardless of the trophic status. The rise in temperature was associated with: (1) the increasing importance of microbial heterotrophic activities (increase bacterial growth and bacterial predator abundance, particularly heterotrophic nanoflagellates) and (2) the increasing importance of autotrophic picoplankton (APP) in the MFW.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Oceanography - Volume 161, February 2018, Pages 87-101
نویسندگان
, , , , , , , , , ,