Usporedba stope metabolizma podzemnih i nadzemnih populacija rakova porodice Asellidae

master's thesis

• Title (english): Comparison of metabolic rates between subterranean and surface asellid crustaceans
• Author: Lucija Tomić
• Mentor: Tvrtko Dražina (mentor)
• Mentor: Helena Bilandžija (komentor)
• Committee member: Tvrtko Dražina (predsjednik povjerenstva)
• Committee member: Ivana Maguire (član povjerenstva)
• Committee member: Josip Skejo (član povjerenstva)
• Committee member: Sandra Hudina (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2025-02-21, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Ovaj diplomski rad istražuje stope metabolizma kod nadzemnih i podzemnih vrsta rakova
porodice Asellidae: Asellus aquaticus, Proasellus anophtalmus i Proasellus coxalis. Uzorci su
sakupljeni s različitih prirodnih lokacija i održavani u kontroliranim laboratorijskim uvjetima.
Stopa metabolizma mjerila se u obliku potrošnje kisika pomoću uređaja - respirometra
PyroScience FireSting-O2. Istražio se i utjecaj različitih svjetlosnih uvjeta na potrošnju kisika
te potrošnja kisika kod različitih spolova. Podaci o potrošnji kisika alometrijski su obrađeni i
analizirani statističkim testovima. Zaključeno je da se stopa metabolizma ne razlikuje kod
nadzemnih i podzemnih populacija rakova A. aquaticus. Stopa metabolizma bila je viša kod
podzemne vrste P. anophtalmus u usporedbi s nadzemnom vrstom P. coxalis. Također,
zaključeno je da utjecaj mraka ne mijenja potrošnju kisika kod nadzemnih skupina rakova A.
aquaticus i P. coxalis. Utjecaj svjetla na podzemnoj skupini rakova A. aquaticus snizio je stopu
metabolizma. Podzemni rakovi pokazali su plastičnost u stopi metabolizma pri uvjetima
izmjene svjetla i mraka, dok nadzemni rakovi nisu. Rezultati pokazuju raznoliko djelovanje
okolišnih uvjeta na stopu metabolizma podzemnih i nadzemnih populacija rakova.

Abstract (english)

This master's thesis investigates the metabolic rates between surface and subterranean species
of crustaceans from the family Asellidae, specifically in the species Asellus aquaticus,
Proasellus anophtalmus, and Proasellus coxalis. Samples were collected from various natural
locations and maintained under specific laboratory conditions. Oxygen consumption was
measured using the respirometer device PyroScience FireSting-O2. The study also examined
the impact of different light conditions on oxygen consumption and the oxygen consumption
between opposite sexes. Data on oxygen consumption were processed allometrically and
analyzed using statistical tests. It was concluded that the metabolic rate does not differ between
surface and subterranean populations of A. aquaticus. However, the metabolic rate was higher
in the subterranean species P. anophtalmus compared to the surface species P. coxalis.
Additionally, the results showed that darkness did not affect oxygen consumption in the surfacedwelling groups A. aquaticus and P. coxalis. In contrast, exposure to light reduced the metabolic rate in the subterranean group of A. aquaticus. Subterranean crustaceans exhibited metabolic plasticity under alternating light and dark conditions, whereas surface-dwelling crustaceans did not. The results highlight the diverse effects of ecology and environmental conditions on the metabolic rates of subterranean and surface crustaceans.

• Keywords: potrošnja kisika; Asellus; Proasellus; svjetlosni uvjeti; temperatura
• Keywords (english): oxygen consumption; Asellus; Proasellus; light conditions; temperature
• Language: croatian
• URN:NBN: urn:nbn:hr:217:100189
• Project: Number: TTP-2018-07-9675; Title: Evolucija u tami; Title: Evolution in the dark; Acronym: Evodark; Leader: Helena Bilandžija; Jurisdiction: Croatia; Funder: Hrvatska zaklada za znanost; Funding stream: Tenure Track Pilot Programme
• Study programme: Title: Experimental Biology-University graduate programme; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni/a magistar/magistra eksperimentalne biologije (sveučilišni/a magistar/magistra eksperimentalne biologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2025-02-28 12:08:10