аЯрЁБс>ўџ :<ўџџџ9џџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџьЅС` јП0ЅbjbjЫsЫs."ЉЉЅџџџџџџЄдддддддшь ь ь ь  ш‘2 6 6 6 6    $Уh+Ъ*!д        *дд6 6 лKРРР  а д6 д6 Р  РРддР6  3чf-уЧь pшР№a0‘РѕXRѕРѕдР0 L] 6Р“ ,П с   **Њ   ‘        шшшь шшшь шшшддддддџџџџ The nothward movement of termophilic fish species in the Adriatic Sea S. Mati-Skoko and J. Dul i Institute of oceanography and fisheries, Spli, Croatia Meatrovievo aetaliate 63, P.O.box. 500 21 000 Split, Croatia correspondent author:  HYPERLINK "mailto:sanja@izor.hr" sanja@izor.hr The hypotesis of an expansive northward movement of termophilic species and changes in marine biodiversity is nowdays supported with numerous records of fish species previously characteristic to the more southern areas. Obviously, this is also happening in the Adriatic Sea as well where intensive changes in the quantitative and qualitative composition of the Adriatic ichthyofauna have been noted. The variations in Adriatic temperature conditions correlate well with the North Atlantic Index (NAO) variations showing that local temparature changes at least partly result from hemispheric one pointing those recent changes of Adriatic biodiversity are partly contriolled by hemispheric climate changes. Moreover, the climate changes provoke oceanographic changes due to greater intensity of water exchange between the Adriatic and the eastern Mediterranean, in term of greater input of wormer and more haline mediterranean water into the Adriatic. In last three decades more than 30, mostly thermophilic, fish species are recognized as new for Adriatic Sea. Also, several thermophilic species, previously scarce or rare, have become more abundant in last 10 years (1996-2006). Moreover, for 5 of them, Ruvettus pretiosus, Plectorhinchus mediterraneus, Sphoeroides pachygaster, Campogramma glaycos, Thalassoma pavo and Pomatomus saltatrix, which were at the beginning found only in southern Adriatic, we are now in position to observe that they passing very well throw adaptation process by establishing large populations at the nothernomost part of Adriatic Sea. Also, some examples of the disappearance or increasing scarcity of some fish species are noticed (Engraulis encrasicolus, Scomber scombrus). These changes will provoke biological and ecological responses threw impacts on food webs and ecosystems. The nature of these responses, acclimatization and adaptation with changing environmental circumstances will be also discussed. Ruvettus pretiosus A specimen of oilfish, Ruvettus pretiosus, was captured from the northern Adriatic (Gulf of Trieste) and represents the northernmost extension in range of this species in the Adriatic Sea. Plectorhinchus mediterraneus The haemulid, Plectorhinchus mediterraneus, prevopusly unrecorded in the Adriatic Sea, has been found recently in the Gulf of Trieste, in Diga Rizzo, Italy and, near Piran, Slovenia. Sphoeroides pachygaster A juvenile specimen of pufferfish, Sphoeroides pachygaster, was captured off Cape Kamenjak (peninsula Istra, northern Adriatic) and represents the northernmost report in the Adriatic Sea and whole Mediterranean area. Campogramma glaycos One juvenile specimen of the vadigo, Campogramma glaycos, was caught on 5 December 2000 in Piran Bay (northern Adriatic). This represents a northernmost extension in the known range of this species in the Adriatic Sea (and Mediterranean), and first record of a juvenile specimen in the Adriatic Sea. Thalassoma pavo The specimens of Thalassoma pavo, were for a long time concentrated only in southern Adriatic, but for the last 5 years this species become usual in whole Adriatic, although, its increasing density from north to south is visible. Pomatomus saltatrix The unusual and surprising catch of Pomatomus saltatrix (1520.8 kg) in the northern Adriatic (Tarska Cove, Mirna Estuary), In December, 2003 can be verified as the northernmost record of this species in the Mediterranean area (excluding Black Sea). о р    ! " # $ й к иъь !#68GL_ЃЙЛЫИЙЫЬфіt‰Š‹•јьјньгьјЯХЗХЊХЊХЊХЊХЊХЊХЊХЊХž‚zzјzrdhЋ аh€}v6]mHsHh€}vmHsHhIOТmHsHhŸp˜hŸp˜6]mHsHhŸp˜hIOТ6]mHsHhŸp˜CJOJQJaJhŸp˜6CJOJQJ]hŸp˜B*CJOJQJphџhŸp˜CJOJQJhŸp˜hŸp˜0JmHsHjhŸp˜UmHsHjhŸp˜UmHsHhŸp˜mHsH&ŒŽШ6 † В # $ ИЙЬЭŠ‹ЈЉ`ayzTUij–—њњњњњњњјѓѓјјыјјјыыыыуууууу$a$gd›™$a$gdЋ а$a$$a$Ѕў•—šЇЈЗгaxyДUiЂ—ІЇЙШЃЩмŸ ЁЂЅђфђфмђмЮРИЮИЮИЮИЊœ”Њ”Њ”Њ”‰~ЮмvhŸp˜mHsHh›™hЖœmHsHhЖœhЖœmHsHhЖœmHsHhЖœh›™6]mHsHhЖœhЖœ6]mHsHh›™mHsHh›™hЋ а6]mHsHh›™h›™6]mHsHhЋ аmHsHhЋ аh€}v6]mHsHhЋ аhЋ а6]mHsH—ЇЈŽЃЄžŸ ЁЂЃЄЅїїяяяяяяїїээээ$a$gdЖœ$a$gd›™,1hА‚. 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