ࡱ> ,.+7 bjbjUU ."7|7|=l(((( 4l TTTTT///  $" Bp 9///// TT& /TT / S {  TH PNl(R  < 0l ,9 Sanja EMBS 41 STATUS OF JUVENILE ICHTHYOFAUNA IN THE KORNATI ARCHIPELAGO (ADRIATIC SEA), AFTER 25 YEARS OF NATIONAL PARK ESTABLISHMENT Sanja Mati-Skoko, Miro Kraljevi, Jakov Dul i and Armin Pallaoro Institute of Oceanography and fisheries; Meatrovievo etalite 63, P.O.Box: 500; Split, Croatia ABSTRACT The Kornati Archipelago, constituted of 147 islands, islets and reefs, signalizes itself by very special geomorphologic properties and ecological conditions. Area is characterized by high biodiversity of flora (300 species) and fauna (350 species), geologic and geomorphologic phenomena, as well as archeological heritage. The intensification of fishing and the progress of tourism have demanded a fast, effective protection and, therefore, the Kornati National Park established on 24th July 1980. Data of ichthyofauna collected in the 1960-1992, on 141 localities consisted of 160 fish species and subspecies which make up 36.9% of total Adriatic ichthyofauna. 64 juvenile fish species were recorded during investigations in period from 1990 to 1992. Repeated sampling after 15 years resulted with records of 46 juvenile fish species. The missing ones (21 species) are rare species which were previously represented only by one or two individuals while four of them were not recorded in last investigations. Moreover, one of them is tropical element showing that environmental changes have also impact on status of Kornati ichthyofauna. Detailed and permanent monitoring is required for completing a list of juvenile fish species and conservation of the Kornati Archipelago biodiversity. MATERIAL AND METHODS The Kornati Archipelago lies along the central part of the Croatian coast, between Zadar and ibrnik. It covers an area of approximately 224km2 between Proversa (NW) and Samogradska vrata (SE) (Fig.1) and has 147 islands, islets and reefs. This archipelago has the most irregular coastlines of any islands in the Mediterranean. All collected data of Kornati ichthyofauna in period of 1960-2006 were analyzed and compared. Fish samples were collected by beach seines and visual census. The sampling area was characteristically hard, sandy, sandy-clay and sandy-mud laterally overgrown by Posydonia oceanica or Cymodocea nodosa. RESULTS Data of ichthyofauna collected in the 1960-1992, on 141 localities consisted of 160 fish species and subspecies. 64 juvenile fish species were recorded during investigations in period from 1990 to 1992. Atherina hepsetus, Sarpa salpa, Diplodus vulgaris and Symphodus ocellatus comprised 85% of the total sample (24 monthly samplings). The findings of Sciaena umbra and Diplecogaster bimaculata were recorded. Repeated sampling after 15 years resulted with records of 46 juvenile fish species. The most dominant families were Sparidae (8 species), Gobiidae (6 species) and Labridae and Mugilidae, both represented by 5 species. The occurrence of Pomatomus saltator in Studenjak Cove at Pikera Island is very interesting due the northernmost findings of this species in Adriatic, as well as occurrence of Thorogobius macrolepis, which is very rare Adriatic species. Besides them, three other species were recorded which were not found in previous investigations. DISCUSSION REFERENCES DUL I J, KRALJEVI M, GRBEC B, PALLAORO A (1997) Composition and temporal fluctuations of inshore juvenile fish populations in the Kornati Archipelago, eastern middle Adriatic. Marine Biology 129: 267-277. GARCIA-RUBIES A, ZABALA M (1990) Effects of total fishing prohibition on the rocky fish assemblages of Medes island marine reserve NW Mediterranean. Scientia Marina 544: 317-328   7DIaJK]omHsH6]H*./09:C D E Z [  $ & Fdha$$dha$$a$$a$$a$ $dh`a$$dha$ $ & Fdha$ ,1h/ =!"#$%  i8@8 NormalCJ_HaJmH sH tH <A@< Default Paragraph Font= " ./09:CDEZ[ 4?0000000000000000000000000 0 0 8@0(  B S  ? >E4@!(_f 7 > I V W a    ! * ] f g o s |         # $ / 3 6 ? J L S T Z [ c l s y ?~+>Vh 3?333w K e ?sanjahC:\Documents and Settings\sanja\Application Data\Microsoft\Word\AutoRecovery save of tekst za poster.asdsanjaPC:\Documents and Settings\sanja\My Documents\SANJA\Cork 2006\tekst za poster.docB>zzhhh^h`.h88^8`.hL^`L.h  ^ `.h  ^ `.hxLx^x`L.hHH^H`.h^`.hL^`L.B>z         @Ĩ3@@ @4 74 = @(@UnknownGz Times New Roman5Symbol3& z Arial"1hŽfF [   !20dj=:2QHP Sanja EMBS 41Sanja Matic SkokosanjaOh+'0   < H T`hpxSanja EMBS 41oanjSanja Matic Skokodanjanj Normal.dot sanja.d9njMicrosoft Word 9.0@i @@jN ՜.+,0 hp  &Institut za oceanografiju i ribarstvojj Sanja EMBS 41 Title  !"$%&'()*-Root Entry FpN/1TableWordDocument."SummaryInformation(DocumentSummaryInformation8#CompObjjObjectPoolpNpN  FMicrosoft Word Document MSWordDocWord.Document.89q