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Bibliographic record number: 493848

Journal

Authors: Marić, Daniela; Godrijan, Jelena; Kraus, Romina; Precali, Robert
Title: Fluctuations in the abundance and composition of microphytoplankton off shore Rovinj (the northern Adriatic Sea) in the period 1972-2009
Source: Variazioni temporali e tendenze nelle caratteristiche meteorologiche ed oceanografiche dell'Adriatico settentrionale: la situazione nel Golfo di Trieste / Giani, Michele (ed). - Trst :
Meeting: Variazioni temporali e tendenze nelle caratteristiche meteorologiche ed oceanografiche dell'Adriatico settentrionale: la situazione nel Golfo di Trieste
Location and date: Trst, Italija, 02-03. 12. 2010.
Keywords: sjeverni Jadran; fitoplankton; dijatomeje; dinoflagelati; dugoročne promjene
Abstract:
Microphytoplankton as a primary producer plays a major role in the marine food web and can reflect the ecosystems response to long- and short-term changes of external pressures (mainly climatic and anthropogenic). Fluctuations of the microphytoplankton community composition and abundance at two eastern coastal stations of the profile Po Delta - Rovinj (RV001 and SJ107, 1 and 15 nautical miles off Rovinj, respectively) were investigated using the 1972-2009 data series. Analyses of the yearly cycle of phytoplankton groups showed the dominance of dinoflagellates in summer, while during the rest of the year diatoms dominated. A significant variability of the seasonal cycle indicated evident differences among various time intervals of the investigated period. In the interval of 1972-79 three phytoplankton blooms often occurred (February, May-June and September-November). The period 1980-87 was characterized by a single yearly bloom maximum (February-April), while during 1987-1992 two blooms often occurred in period February to June. After 1993, there were 2 blooms per year (February-April and September-November). The data analysis performed on a seasonal base showed an increased appearance of diatom blooms (spring, 1986-2000). At station SJ107 in the 1980’s increased abundances of dinoflagellates were observed during summer. Whereas the group of prymnesiophyceae showed an increasing trend in the period after 1983-1986.
Type of meeting: Predavanje
Type of presentation in a journal: Abstract
Type of peer-review: International peer-review
Project / theme: 098-0982705-2731
Original language: ENG
Category: Znanstveni
Research fields:
Geology
Contrib. to CROSBI by: dmaric@irb.hr (dmaric@irb.hr), 6. Pro. 2010. u 20:30 sati



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