Spremljanje sezonske dinamike bentoških organizmov v dveh visokogorskih jezerih v Julijskih Alpah

magistrsko delo

Manuel Persoglia (Avtor), Anton Brancelj (Mentor)

Povzetek

Cilj projekta je bil ugotoviti podobnosti oz. razlike in sezonsko dinamiko bentoških organizmov v dveh visokogorskih jezerih v Julijskih Alpah, ki ležita na različni nadmorski višini: Rabeljsko jezero (969 m n. m.) – Italija in Krnsko jezero (1391 m n. m.) – Slovenija. Vzorčenje je potekalo po metodi »kick sampling« s pomočjo ročne mreže za zbiranje vodnih nevretenčarjev v vodi do globine približno 0,5 m in okoli 2 m od obale jezera, odvisno od oblike in sestave jezerskega dna. Vzorčenje je potekalo na različnih podlagah, da je bilo zajetih čim več mikrohabitatov. Končni cilj projekta je bil prikazati dinamiko posameznih vrst vodnih nevretenčarjev glede na sezono. Hkrati smo iskali razlike v vrstni sestavi in pogostosti živali med obema jezeroma. V petih vzorčevalnih obdobjih med letoma 2021 in 2022 smo na osmih različnih mestih nabrali 40 vzorcev. Skupno je bilo najdenih 330 osebkov bentoških organizmov iz enajstih družin, ki smo jih uvrstili v osem višjih taksonov, in sicer Diptera (dvokrilci), Ephemeroptera (enodnevnice), Gastropoda (polži), Megaloptera (velekrilci), Odonata (kačji pastirji), Oligochaeta (maloščetinci), Plecoptera (vrbnice), Trichoptera (mladoletnice). Najbolj prisotni sta bili skupini dvokrilcev in maloščetincev.

Ključne besede

visokogorska jezera;bentoški organizmi;Julijske Alpe;Rabeljsko jezero;Krnsko jezero;magistrske naloge;

Podatki

Jezik:	Slovenski jezik
Leto izida:	2023
Tipologija:	2.09 - Magistrsko delo
Organizacija:	UNG FZO - Fakulteta za znanosti o okolju
Založnik:	[M. Persoglia]
UDK:	579
COBISS:	162688771
Št. ogledov:	34
Št. prenosov:	1
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Angleški jezik
Sekundarni naslov:	Monitoring the seasonal dynamics of benthic organisms in two mountain lakes in the Julian Alps
Sekundarni povzetek:	The aim of project was to determined the similarities/differences and seasonal dynamics of benthic organisms in two high mountain lakes in the Julian Alps, which are located at different altitudes: Predil lake (969 m) - Italy and Krn lake (1391 m) - Slovenia. Sampling was carried out according to the »kick sampling« technique with a hand net for collecting aquatic invertebrates in the water to a depth of about half a meter and about two meters from the shore of the lake, depending on the shape and composition of the bottom. Sampling took place on different substrates, to cover as many microhabitats as possible. The final goal of the project was to show the dynamics of aquatic animals according to the season. At the same time, we looked for differences in the species composition and frequency of animals between the two lakes. In five sampling periods between 2021 and 2022 we collected 40 samples at eight different locations. In total, we found 330 specimens from eleven groups, which were classified into eight higher taxa: Diptera (true flies), Ephemeroptera (mayfly), Gastropoda (snails), Megaloptera (dobsonflies), Odonata (dragonflies), Oligochaeta (freshwater worms), Plecoptera (stoneflies) and Trichoptera (caddisflies). The most abundant groups were true flies and freshwater worms.
Sekundarne ključne besede:	Benthic organisms;high-mountain lakes;Julian Alps;Predil lake;Krn lake;
Vrsta dela (COBISS):	Magistrsko delo/naloga
Komentar na gradivo:	Univ. v Novi Gorici, Fak. za znanosti o okolju
Strani:	X, 35 str.
ID:	19177225