Structure and composition of fish communities within Nature park Telašćica before establishment of no take zones

Bukša, Filip (2016) Structure and composition of fish communities within Nature park Telašćica before establishment of no take zones. Diploma thesis, Faculty of Science > Department of Biology.

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Abstract

At this very moment, the existence of the biological resources all around the world is threatened as a result of overfishing. Marine protected areas (MPAs) have been proposed as an effective tools for sustaining those resources. This study investigated various fish biological responses to different degrees of protection in the Nature park „Telašćica“, located in the middle of the eastern Adriatic. In total, 13 locations under different protection levels were investigated by visual underwater census. Results have shown no significant differences in species richness, mean and total abundance and biomass according to different protection levels. However, small but significant differences have been noticed in the trophic compositions and fish length distributions among those locations. Regardless of the protection levels, fish communities are displaying „bottom heavy“ patterns with higher overall abundances of microcarnivorous and planktivorous fishes and very little apex predators. Results are indicating very little protection effects within the area, mostly due to still present overfishing. Overall, protection levels in this MPA have not shown desirable effects and it is crucial to improve Park management, law regulations and field inspections. The study provides baseline data, which can be used to assess future changes in fish assemblages within the Nature park „Telašćica“, especially after new protection plan gets implemented.

Item Type: Thesis (Diploma thesis)
Keywords: ichtyofauna, visual census, Marine protected areas, Adriatic Sea, Telašćica
Supervisor: Matić – Skoko, Sanja
Co-supervisor: Kružić, Petar
Date: 2016
Number of Pages: 70
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Grozdana Sirotic
Date Deposited: 21 Nov 2016 11:52
Last Modified: 21 Nov 2016 11:52
URI: http://digre.pmf.unizg.hr/id/eprint/5319

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