undergraduate thesis
Changes of eutrophic conditions in the northern Adriatic during 2013

Matea Stankić (2015)
University of Pula
Department of Natural and Health Studies
Metadata
TitlePromjene eutrofnih uvjeta u sjevernom Jadranu tijekom 2013. godine
AuthorMatea Stankić
Mentor(s)Tamara Đakovac (thesis advisor)
Abstract
U ovom radu analizirani su podaci oceanografskih parametara (temperatura, salinitet, udio zasićenja kisikom, koncentracije hranjivih soli - ortofosfata i ukupnog anorganskog dušika te klorofila a) u sjevernom Jadranu tijekom 2013. godine. Podaci su sakupljani na 7 postaja profila Rovinj delta rijeke Po. Osim toga, korišteni su i podaci o protoku rijeke Po. Svi su korišteni za definiranje eutrofnih uvjeta na istraživanom području. Podaci za 2013. g. su potom uspoređeni s dugoročnim prosjecima za razdoblje 1972. - 2004. g. kako bi se procijenilo da li je došlo do značajnijih odstupanja od višegodišnjeg prosjeka. Ekosustav sjevernog Jadrana je u 2013. godini čitavo proljeće bio pod iznimno intenzivnim utjecajem slatkih voda unosom rijeke Po, pa su se očekivale posljedice eutrofnih uvjeta kao što su hipoksija i cvjetanje mora. Međutim, započete pojave nisu se nastavile, vjerojatno zbog intenzivnije cirkulacije i izmjena voda između sjevernog i srednjeg Jadrana. Izražen trend oligotrofikacije, zabilježen u razdoblju od 2002. do 2008. g. zbog izrazito sniženog protoka rijeke Po, je prekinut ponovnim uspostavljanjem povećanog unosa hranjivih soli u sjeverni Jadran.
Keywordseutrophication oceanographic properties Po River flow rate hypoxia mucilage northern Adriatic.
Parallel title (English)Changes of eutrophic conditions in the northern Adriatic during 2013
Committee MembersNastjenka Stupić (committee chairperson)
Tamara Đakovac (committee member)
Ljiljana Iveša (committee member)
GranterUniversity of Pula
Lower level organizational unitsDepartment of Natural and Health Studies
PlacePula
StateCroatia
Scientific field, discipline, subdisciplineNATURAL SCIENCES
Interdisciplinary Natural Sciences
Marine Science
Study programme typeuniversity
Study levelundergraduate
Study programmeUniversity Undergraduate Study Programme - Marine Sciences
Academic title abbreviationuniv. bacc. mariscient
Genreundergraduate thesis
Language Croatian
Defense date2015-09-15
Parallel abstract (English)
In this paper, data of oceanographic parameters (temperature, salinity, oxygen saturation content, nutrient concentrations-orthophosphate and total inorganic nitrogen and chlorophyll a) in the northern Adriatic in 2013 were analyzed and related to the Po River flow rates. Oceanographic data were collected on 7 stations of the profile Rovinj-Po Delta. Data elaboration defined eutrophic conditions in the study area. Furthermore, long-term average statistical models (1972-2004) were used to determine possible significant deviations in values and/or seasonal patterns of all the studied parameters. The ecosystem of the northern Adriatic during spring 2013 was under very intense influence of Po riverine fresh water, therefore, eutrophic conditions consequences, as hypoxia, as well as mucilage events were expected. However, started phenomena are not continued, presumably due to the favourable system of circulation and intensive exchange of the middle and northern Adriatic waters. Significant oligotrofication trend evidenced in the period 2002-2008 due to markedly reduced Po River flow rate was interrupted by re-establishing increased nutrients inflow in the northern Adriatic.
Parallel keywords (Croatian)eutrofikacija oceanografska svojstva protok rijeke Po hipoksija cvjetanje mora sjeverni Jadran.
Resource typetext
Access conditionOpen access
Terms of usehttp://rightsstatements.org/vocab/InC/1.0/
URN:NBNhttps://urn.nsk.hr/urn:nbn:hr:137:137246
CommitterRuža Šutalo