Naslov
Seasonal variations in biochemical composition and metallothionein contents of digestive gland of Noah’s Ark shell (Arca noae Linnaeus, 1758) from the Adriatic Sea

Autori
De Clercq, Nele

Vrsta, podvrsta i kategorija rada
Ocjenski radovi, diplomski rad, preddiplomski

Fakultet
Faculty Education, Health and Social work

Mjesto
Ghent

Datum
15.06

Godina
2016

Stranica
77

Mentor
Erk, Marijana

Ključne riječi
Arca noae; biochemical composition; seasonal variation; metallothionein; digestive gland

Sažetak
Noah’s Ark shell (Arca noae) is a bivalve that is common in the Adriatic Sea, it is exploited for culinary purposes from natural populations. The aim of this study is to determine the concentrations of total lipids, proteins, carbohydrates and metallothionein to differentiate between the sampling sites and their respectively different environmental pressures and potential metal exposure. Three sampling sites were selected: one from nature park Telaščica and two from the Pašman kanal- the main harvesting area in the central part of Eastern Adriatic Sea in Croatia. From each site, 36 individuals were sampled monthly in the period from March 2013 to February 2014 . The digestive gland was used for measuring total lipids, total proteins, total carbohydrates and metallothionein concentration, all by spectrophotometric methods. Correlations between parameters were calculated and two-way ANOVA was used to investigate the seasonal and spational variability between the different sampling stations. Correlations were found for metallothionein concentrations and reproductive cycle as well as for temperature and total lipids. This study provided first data on metallotioneins in Arca noae. Levels of metallothionein showed the impact that nautical tourism has on nature parks. In summer the level of metallothionein in A. noae from Telaščica is higher than that for the sampling sites where anthropogenic stress is expected. From the results we can conclude that metallothionein is a possible biomarker for A. noae. More research with organisms from sampling sites of which pollution levels are more elevated is necessary to confirm this conclusion.

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Biologija

Napomena
With this thesis candidate obtained the title of the Professional Bachelor of the Biomedical Laboratory Technology (Subject: Pharmaceutical and Biological Laboratory Technology) Co-promotor: Dr. Brita Muyssen.

POVEZANOST RADA