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The morphological variability, distribution patterns and endangerment in the Ogulin cave sponge Eunapius subterraneus Sket & Velikonja, 1984 (Demospongiae, Spongillidae)

H. Bilandžija
J. Bedek
B. Jalžić
S. Gottstein

Puni tekst: engleski, pdf (460 KB) str. 1-17 preuzimanja: 746* citiraj
APA 6th Edition
Bilandžija, H., Bedek, J., Jalžić, B. i Gottstein, S. (2007). The morphological variability, distribution patterns and endangerment in the Ogulin cave sponge Eunapius subterraneus Sket & Velikonja, 1984 (Demospongiae, Spongillidae). Natura Croatica, 16 (1), 1-17. Preuzeto s https://hrcak.srce.hr/13515
MLA 8th Edition
Bilandžija, H., et al. "The morphological variability, distribution patterns and endangerment in the Ogulin cave sponge Eunapius subterraneus Sket & Velikonja, 1984 (Demospongiae, Spongillidae)." Natura Croatica, vol. 16, br. 1, 2007, str. 1-17. https://hrcak.srce.hr/13515. Citirano 15.11.2019.
Chicago 17th Edition
Bilandžija, H., J. Bedek, B. Jalžić i S. Gottstein. "The morphological variability, distribution patterns and endangerment in the Ogulin cave sponge Eunapius subterraneus Sket & Velikonja, 1984 (Demospongiae, Spongillidae)." Natura Croatica 16, br. 1 (2007): 1-17. https://hrcak.srce.hr/13515
Harvard
Bilandžija, H., et al. (2007). 'The morphological variability, distribution patterns and endangerment in the Ogulin cave sponge Eunapius subterraneus Sket & Velikonja, 1984 (Demospongiae, Spongillidae)', Natura Croatica, 16(1), str. 1-17. Preuzeto s: https://hrcak.srce.hr/13515 (Datum pristupa: 15.11.2019.)
Vancouver
Bilandžija H, Bedek J, Jalžić B, Gottstein S. The morphological variability, distribution patterns and endangerment in the Ogulin cave sponge Eunapius subterraneus Sket & Velikonja, 1984 (Demospongiae, Spongillidae). Natura Croatica [Internet]. 2007 [pristupljeno 15.11.2019.];16(1):1-17. Dostupno na: https://hrcak.srce.hr/13515
IEEE
H. Bilandžija, J. Bedek, B. Jalžić i S. Gottstein, "The morphological variability, distribution patterns and endangerment in the Ogulin cave sponge Eunapius subterraneus Sket & Velikonja, 1984 (Demospongiae, Spongillidae)", Natura Croatica, vol.16, br. 1, str. 1-17, 2007. [Online]. Dostupno na: https://hrcak.srce.hr/13515. [Citirano: 15.11.2019.]

Sažetak
The distribution and morphological variability of the troglobiotic freshwater sponge Eunapius subterraneus Sket & Velikonja, 1984 registered in Croatia as a threatened species in the IUCN category Endangered (EN) was investigated. The research area encompassed Velika and Mala Kapela Mountains as well as the upper catchment area of the Dobra and Mrežnica rivers on the NE side of Velika and Mala Kapela Mountains, mostly in the Ogulin–Plaški karst plateau. The species was registered in six localities, three previously known from the literature and three constituting new records: Mandelaja pit and the caves Crnačka špilja and Izvor špilja Gojak. For subspecies identification the morphology and dimensions of megascleres and gemmuloscleres of the collected samples were analyzed. Significant differences among sponge populations were indicated by one-way ANOVA (p < 0.001) in width and length of megascleres. The subspecies E. s. mollisparspanis Sket & Velikonja, 1984 was found only at its type locality, in the cave Rudnica špilja VI. The preliminary variability of other populations after discriminant function analysis of measured morphometric parameters such as the width and length of mega- and gemmulo-scleres indicates four groups, but it was not possible to separate them clearly in all cases. Subterranean sponges were not found in two localities known from the past, the Đula – Medvedica cave system and the cave Špilja u kamenolomu Tounj, both under great pressure of groundwater habitat changes because of water pollution, river direction changes and habitat destruction.

Ključne riječi
freshwater sponges; caves; springs; gemmules; spicules; distribution; Croatia

Hrčak ID: 13515

URI
https://hrcak.srce.hr/13515

[hrvatski]

Posjeta: 1.395 *