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Colonization patterns of the date mussel Lithophaga lithophaga (L., 1758) on limestone breakwater boulders of a marina

MASSIMO DEVESCOVI ; Ruđer Bošković Institute, Center for Marine Research. G. Paliaga 5, 52210 Rovinj, Croatia
LJILJANA IVEŠA ; Ruđer Bošković Institute, Center for Marine Research. G. Paliaga 5, 52210 Rovinj, Croatia

Puni tekst: engleski, pdf (163 KB) str. 339-345 preuzimanja: 815* citiraj
APA 6th Edition
DEVESCOVI, M. i IVEŠA, LJ. (2008). Colonization patterns of the date mussel Lithophaga lithophaga (L., 1758) on limestone breakwater boulders of a marina. Periodicum biologorum, 110 (4), 339-345. Preuzeto s https://hrcak.srce.hr/35946
MLA 8th Edition
DEVESCOVI, MASSIMO i LJILJANA IVEŠA. "Colonization patterns of the date mussel Lithophaga lithophaga (L., 1758) on limestone breakwater boulders of a marina." Periodicum biologorum, vol. 110, br. 4, 2008, str. 339-345. https://hrcak.srce.hr/35946. Citirano 18.11.2019.
Chicago 17th Edition
DEVESCOVI, MASSIMO i LJILJANA IVEŠA. "Colonization patterns of the date mussel Lithophaga lithophaga (L., 1758) on limestone breakwater boulders of a marina." Periodicum biologorum 110, br. 4 (2008): 339-345. https://hrcak.srce.hr/35946
Harvard
DEVESCOVI, M., i IVEŠA, LJ. (2008). 'Colonization patterns of the date mussel Lithophaga lithophaga (L., 1758) on limestone breakwater boulders of a marina', Periodicum biologorum, 110(4), str. 339-345. Preuzeto s: https://hrcak.srce.hr/35946 (Datum pristupa: 18.11.2019.)
Vancouver
DEVESCOVI M, IVEŠA LJ. Colonization patterns of the date mussel Lithophaga lithophaga (L., 1758) on limestone breakwater boulders of a marina. Periodicum biologorum [Internet]. 2008 [pristupljeno 18.11.2019.];110(4):339-345. Dostupno na: https://hrcak.srce.hr/35946
IEEE
M. DEVESCOVI i LJ. IVEŠA, "Colonization patterns of the date mussel Lithophaga lithophaga (L., 1758) on limestone breakwater boulders of a marina", Periodicum biologorum, vol.110, br. 4, str. 339-345, 2008. [Online]. Dostupno na: https://hrcak.srce.hr/35946. [Citirano: 18.11.2019.]

Sažetak
Background and Purpose: The European date mussel (Lithophaga
lithophaga) is widespread along the whole Mediterranean rocky coastline where it is frequently but illegally harvested. It is well known that the growth of the date mussel is very slow; however, patterns of recolonization of exploited surfaces have been scarcely investigated. The objective of this study is to assess colonization patterns of the date mussel on limestone boulders which
have been in the sea for 19 years. These results could be useful in predicting the reconstitution of natural populations of the date mussel after harvesting.

Materials and Methods: Limestone breakwater boulders were placed
along the dike of the Marina of Rovinj (northern Adriatic, Istrian peninsula, Croatia) in 1984. Sampling was carried out in summer 2003 by SCUBA diving from six habitats of different inclination and topography: horizontal, inclined, vertical, sheltered, vaults, and whole stones. The abundance and biomass of L. lithophaga at the Marina were compared with those in natural control locations.

Results: At the Marina, no date mussels were found on the horizontal
and inclined sides of the boulders, and very few date mussels were found on the vertical side. On the contrary, sheltered and vault sides of boulders and whole stones were intensively colonized by L. lithophaga. In vaults, the abundance was similar to that in nature. In these habitats, L. lithophaga biomasswas generally lower than in nature. However, large date mussels, of lengths from 50 to 70 mm, were already present on boulders of theMarina. They amounted to 35% in the sheltered habitat, 24% in vaults, and 3% of
the total number in whole stones.

Conclusions: An unexpected high colonization rate and growth of date
mussels was detected in certain unexposed rocky habitats at the boulders of the Marina. However, on the natural rocky Istrian coast, the date mussel was mostly collected on exposed inclined and vertical rocky surfaces where repopulation after harvesting may require very long periods.

Ključne riječi
Lithophaga lithophaga; Northern Adriatic; colonization; growth; size classes; habitat

Hrčak ID: 35946

URI
https://hrcak.srce.hr/35946

Posjeta: 1.221 *