Acta Adriatica, Vol. 62 No. 1, 2021.
Izvorni znanstveni članak
https://doi.org/10.32582/aa.62.1.1
Comparison of benthic diatom community structures on natural and artificial substrates in marine lake (Adriatic Sea)
Ana Car
orcid.org/0000-0001-6018-4305
; Sveučilište u Dubrovniku, Institut za more i priobalje, 20000 Dubrovnik, Hrvatska
Dubravka Hafner
; Sveučilište u Dubrovniku, Institut za more i priobalje, 20000 Dubrovnik, Hrvatska
Iris Dupčić Radić
orcid.org/0000-0001-8566-5631
; Sveučilište u Dubrovniku, Institut za more i priobalje, 20000 Dubrovnik, Hrvatska
Aydin Kaleli
orcid.org/0000-0003-3843-1335
; Department of Marine and Freshwater Resources Management, Faculty of Aquatic Sciences, Istanbul University, Istanbul, Turkey
Stijepo Ljubimir
; Sveučilište u Dubrovniku, Institut za more i priobalje, 20000 Dubrovnik, Hrvatska
Cüneyt Nadir Solak
orcid.org/0000-0003-2334-4271
; Department of Biology, Faculty of Science and Arts, Kütahya Dumplupinar University, Kütahya, Turkey
Sažetak
In this study, the diatoms of three alternative habitats (epilithon, epiphyton and artificial substrate) were compared to understand the differences in composition on artificial and natural sub-strates. For this purpose, the samples were collected weekly between 11th August and 2nd Septem-ber 2016 at a sampling site in a shallow marine lake, Mrtvo More (Dead Sea) on Lokrum Island near Dubrovnik (South Adriatic, Croatia). In addition to detailed light microscopic analysis, ultrastructural analysis of benthic diatoms from Lake Mrtvo More was performed for the first time using scanning electron microscopy (SEM). A total of 97 taxa were identified in 12 samples. Cocconeis scutellum Ehrenberg and Halamphora coffeiformis (C.Agardh) Levkov were the most frequent taxa in the samples. Shannon-Wiener diver-sity index (H’) values varied from 1.78 (in September on Padina sp.) to 4.52 (in August on glass). According to non-metric multidimensional scaling ordination, there were two groups: epilithon and artificial glass substrate as Group1 and macroalgae as Group2. The results of the analysis showed that the diatom communities developing on artificial sub-strates accurately corresponed to the diatom community of a rock substrate and thus can be used as a representative alternative tool for studies of epilithic diatoms in further experiments.
Ključne riječi
Bacillariophyta; shallow marine lake; species identification; biodiversity; NE Mediterranean
Hrčak ID:
260961
URI
Datum izdavanja:
26.7.2021.
Posjeta: 1.092 *