20.500.12556/DKUM-75457 Prispevek k poznavanju ekologije solinarke (aphanius fasciatus) v slovenskih obrežnih mokriščih Contribution to the knowledge of the mediterranean killifish (aphanius fasciatus) ecology in slovene coastal wetlands Solinarka Aphanius fasciatus je majhna vsejeda riba iz družine drstečih živorodnih krapovcev (Cyprinodontidae). V Sloveniji je prisotna na več obmorskih mokriščih. Naša raziskava je potekala v Sečoveljskih in Strunjanskih solinah od jeseni 2014 do decembra 2016. Opravili smo 24 vzorčenj. V pionirski raziskavi (2014 in 2015) smo ugotavljali vpliv ekoloških dejavnikov na kondicijski indeks rib solinark. Namen je bil nadgraditi pionirsko raziskavo z novimi dejstvi in znatno večjim vzorcem ter ugotoviti ali se ugotovljeni vzorec (kondicijski indeks in biometrija) iz predhodne raziskave ohranja. Metoda vzorčenja je temeljila na lovu osebkov z veliko mrežo za lov planktona, vršami ter srednje veliko mrežo za lov manjših morskih organizmov. Za ugotavljanje fizičnega stanja osebkov smo za vsak osebek (2379 osebkov) na podlagi dolžine in mase izračunali Fultonov kondicijski faktor. Ugotovili smo, da imajo solinarke boljši kondicijski indeks in biometrične lastnosti v večjih habitatih, kot so solinski bazeni ter lagune in nekoliko slabši v manjših habitatih (kotanje in kanali). Prisotnost vegetacije ni ključna za preživetje. Najmanj primerna območja zanje so naravne majhne kotanje brez dotoka vode. V slednjih je večja možnost infestacij s paraziti, kot v lagunah, kanalih in solinskih bazenih. V populacijah so samice v primerjavi s samci številčnejše in imajo boljši kondicijski indeks ter biometrične lastnosti. Starostno razmerje populacij je v prid mlajšim osebkom. V nadaljnjih raziskavah bi bilo smotrno vzorčiti v poletnih mesecih ter v večjih habitatih. Mediterranean killifish Aphanius fasciatus is a small omnivorous fish from the family of Cyprinodontidae. In Slovenia, it is present in several coastal wetlands. Our research was conducted in the Sečovlje and Strunjan saltpans from autumn of 2014 to December 2016. We arranged 24 samples. In the course of the founding research (2014 and 2015) we determined the influence of ecological factors on the coefficient of condition of Aphanius fasciatus. The purpose of this research was to upgrade the pioneering research with new facts and a significantly larger sample, and to determine whether the identified pattern (condition factor and biometrics) from the prior research is retained. The sampling method was solely based on the hunting of specimens with a large net for plankton hunting, peaks and a medium-sized net for catching small marine organisms. To determine the physical condition of specimens, Fulton’s condition factor was calculated for each specimen (2379 specimens) based on length and mass. Specimens were found to have better condition factor and biometric properties in larger habitats, such as salt basins and lagoons, and slightly worse in smaller habitats (corries and canals). The presence of vegetation is not crucial for survival. The least suitable areas for them are natural small corries without the flow of fresh water. The latter are more likely to be infested with parasites than in lagoons, canals and salt basins. Females are more abundant in populations than males and have a better condition factor and biometric properties. The age ratio of the populations is in favor of the younger specimens. It would be beneficial to sample in further research during the summer months and also in larger habitats. solinarka Fultonov kondicijski faktor biometrične lastnosti solinski bazen kanal kotanja laguna Mediterranean killifish Fulton's condition factor biometric properties salt basins canals corries lagoons true true false [N. Obersnel] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2019-11-19 11:14:47 2020-01-23 13:12:33 2022-08-09 11:21:56 2020-01-24 03:12:03 2019 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 574(497.4)(043.2) 25075720 URN:SI:UM:DK:ZBZGPIQL MAG_Obersnel_Nola_2019.pdf MAG_Obersnel_Nola_2019.pdf 1 BBA151412FBBA457BFF0838C4A4DFFFC d955a2880e33558eecdfa2fa6a963370ce78065699b4841f3cdea9cb19c8907b 234dd636-7c11-11eb-bb7a-00155d0001ca 20.500.12556/dkum/50e4effa-4025-4aa5-bab4-bb4cbc75a0bf https://dk.um.si/Dokument.php?lang=slv&id=139635 Fakulteta za naravoslovje in matematiko 0 0 0