Naslov
Do fish assemblages at sites featuring man-made concrete walls differ from those at natural rocky-reef sites?
(Do fi sh assemblages at sites featuring man-made concrete walls differ from those at natural rocky-reef sites?)

Autori
Kruschel, Claudia ; Harras, Julia ; Blindon, Irmgard ; Schultz, Stewart T.

Izvornik
Annales. Anali za istrske in mediteranske študije. Series Historia Naturalis (1408-533X) 27 (2017), 2; 167-180

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
fi sh community, lure visual census, rocky reefs, seawalls, urbanization, predation intensity

Sažetak
The urban development of seashores is predicted to lower biodiversity. After we validated a stationary lureassisted visual-census method, we proceeded to test the overall hypothesis that fish community structure changes when complex and heterogeneous natural rocky habitats are displaced by less complex vertical hard surfaces. Taxonomic fish community descriptors derived from pristine rocky shorelines were compared with those featuring concrete walls and to natural rocky reefs directly neighboring such developments. Fish communities differed very little between sites across the three levels of development and existing differences were not consistent across all sites within a level. We conclude that in the Croatian Adriatic, the typically small-scale concrete-wall developments do not cause major disruptions of natural near-shore fish assemblages.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA