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Rasprostranjenost nezavičajne vrste kamenice Magallana gigas(Thunberg, 1793) duž istočne obale Jadrana
Author(s) -
Daria Ezgeta-Balić,
Tanja Šegvić-Bubić,
Nika Stagličić,
YaPing Lin,
Dubravka Bojanić Varezić,
Leon Grubišić,
Elizabeta Briski
Publication year - 2019
Publication title -
acta adriatica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.372
H-Index - 21
eISSN - 1846-0453
pISSN - 0001-5113
DOI - 10.32582/aa.60.2.3
Subject(s) - crassostrea , littoral zone , fishery , bay , pacific oyster , habitat , geography , population , marine ecosystem , aquaculture , mediterranean sea , biology , peninsula , oceanography , ecology , ecosystem , oyster , mediterranean climate , fish <actinopterygii> , geology , demography , sociology
Non-native Pacific oyster Magallana gigas (Thunberg, 1793) was introduced to the Mediter-ranean Sea for aquaculture purposes in the 1960s. Although this species was not introduced for aquaculture to the Croatian part of the Adriatic Sea, in the 1970s, it was reported in the Lim Bay, in the North-eastern Adriatic. Until recently, there has been no research on the species in the Croatian part of the Adriatic. The aim of this research was to summarize existing and novel data on the distribution of M. gigas in coastal areas of the Eastern Adriatic and to provide a baseline for the future monitoring and assessment programmes of the species. Distribution of M. gigas was determined by three different methods: (i) a visual census of the presence of M. gigas specimens in the medio-littoral zone; (ii) DNA identification of M. gigas larvae in the water column; and (iii) the presence of M. gigas in the subtidal zone at depth between 25 and 40 m. Magallana gigas has a well-established population in the medio-littoral zone of natural and anthropogenic habitats along the coast of the North-eastern Adriatic Sea (west coast of Istria peninsula), but it is not present in the deeper layers . In the Central-eastern and South-eastern Adriatic Sea, the species was either absent or sporadically recorded with no evidence of fully established populations. Considering the great invasion success of M. gigas worldwide and effects that this species could have on the invaded ecosystem (e.g. competition for food and space with native species), detailed future monitoring is needed for the Eastern Adriatic Sea.

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