5 research outputs found
Prvi nalaz vrste Eualus drachi Noël, 1978 (Decapoda: Caridea) u Jadranskom moru
Three specimens of decapod shrimp Eualus drachi Noël, 1978, were found in the red coral rem-nant collected for commercial purposes near the island Sveti Andrija, Croatia. It is the first record of this species in the Adriatic Sea. The decapod biodiversity of deeper coralligenous habitats, such as the red coral colonies, is poorly investigated in contrast to coastal areas and soft bottoms of traditional trawling grounds. This paper highlights the usefulness of examining the remnants of a commercial coral extraction originating from previously less investigated marine habitats in order to improve the knowledge on the biodiversity of such habitats.Tri primjerka kozice Eualus drachi Noël, 1978, pronađena su u ostatku crvenog koralja prikupljenom u komercijalne svrhe u blizini otoka Sveti Andrija, Hrvatska. To je prvi nalaz ove vrste u Jadranskom moru. Biološka raznolikost deseteronožaca dubljih koraligenih staništa (poput kolonija crvenih koralja) slabo je istražena za razliku od obalnih područja i mekog dna tradicionalnih koćarskih područja. U ovom radu se naglašava korisnost ispitivanja ostataka komercijalne ekstrakcije koralja porijeklom iz prethodno manje istraženih morskih staništa kako bi se poboljšalo znanje o biološkoj raznolikosti takvih staništa
Fauna jadranskih deseteronožnih rakova (Crustacea: Decapoda) – stanje i perspektive
The checklist of the Adriatic decapod fauna is re-examined and supplemented. Several new species for the area are included in the list, new immigrants are noted and some species excluded. The species names are updated and their status and prospects commented on.Rad donosi pregled i nadopunu popisa vrsta jadranskih deseteronožnih rakova. U popis je dodano nekoliko novih vrsta za ovo područje, zabilježene su imigrantske vrste, a neke vrste su izbačene. Revidirana su imena vrsta te se raspravlja o njihovom stanju i perspektivama
Prvi nalaz kozice Hippolyte prideauxiana Leach, 1817 za Jadransko more (Crustacea, Decapoda, Caridea)
During the last ten years, several decapod species were recorded in the Adriatic Sea for the first time. Such a rapid increase in the number of recorded species of decapod crustaceans is the result of the increased number of carcinologists engaged in SCUBA diving. In 2002, during the routine Natural History Museum of Rijeka SCUBA fieldwork, the caridean shrimp, Hippolyte prideauxiana Leach, 1817, was collected at Kostrena near the city of Rijeka in the northern Adriatic. This record, the first for the Adriatic Sea, widens the previously known geographic distribution of this species.Zadnjih desetak godina u Jadranu je zabilježeno nekoliko novih vrsta desetonožnih rakova. Rast broja nalaza dekapoda u kratkom vremenskom roku možemo zahvaliti većoj aktivnosti znanstvenika karcinologa istraživanju podmorja metodom autonomnog ronjenja. Terenskim radom Prirodoslovnog muzeja Rijeka 2002. godine pronađen je primjerak kozice Hippolyte prideauxiana Leach, 1817, na lokaciji Stare vode u Kostreni pored Rijeke. Ovaj nalaz, prvi za Jadransko more, proširio je dosad poznatu geografsku rasprostranjenost spomenute vrste
Podmorska špilja kod Vrbnika (otok Krk, Vinodolski kanal)
A submarine cave near Vrbnik (the island of Krk, Croatia) is 30 m long and has the shape of an irregular triangular prism, with its bottom covered by mud and boulders. Formed in Upper Cretaceous limestone under terrestrial conditions, probably during the Würm glaciation it was submerged during the Holocene rise in the sea-level. Preliminary biocenological studies revealed 23 taxa of macroflora at the cave entrance and 115 taxa of macrofauna (22 Porifera, 7 Cnidaria, 19 Bivalvia, 6 Gastropoda, 1 Cephalopoda, 1 Echiura, 1 Sipuncula, 8 Polychaeta, 15 Crustacea, 6 Bryozoa, 5 Echinodermata, 4 Tunicata, 20 Pisces). Malacostraca comprised 13 species of Decapoda and 2 species of Mysidiacea. Among the fishes only Gammogobius steinitzi is considered to be an exclusive cave inhabitant. The goby Thorogobius ephippiatus is by far the most abundant fish. From the cave entrance and up to 3 m into the cave a precoralligenous aspect of coralligenous biocenosis was registered. The biocenosis of semi-dark caves dominated by Porifera fauna occurs up to 25 m into the cave, while the final 5 m are characterised by biocenosis of caves and ducts in complete darkness with a predominance of Polychaeta.Podmorska špilja kod Vrbnika duga je 30 metara, i ima oblik nepravilne trostrane prizme. Oblikovana je u gornjokrednim vapnenačkim stijenama. Muljeviti i pjeskoviti sedimenti pokrivaju njeno dno. Nastala je u kopnenim uvjetima, tijekom Würma. U holocenu, izdizanjem morske razine špilja je potopljena. Tijekom biocenoloških istraživanja nađene su 23 svojte makroflore i 115 svojti makrofaune (Porifera 22, Cnidaria 7, Bivalvia 19, Gastropoda 6, Cephalopoda 1, Echiura 1, Sipuncula 1, Polychaeta 8, Crustacea 15, Bryozoa 6, Echinodermata 5, Tunicata 4, Pisces 20). Istraživanjem Malacostraca pronađeno je 13 vrsta dekapodnih rakova i 2 vrste mizida. Među zabilježenim ribama, samo se glavoč Gammogobius steinitzi može smatrati isključivim stanovnikom podmorskih špilja. Primjercima najbrojnija vrsta riba u špilji je glavoč Thorogobius ephippiatus. Od ulaza do 3 metra unutar špilje zabilježen je prekoraligenski aspekt koraligenske biocenoze. Biocenoza polutamnih špilja utvrđena je do 25 metara od ulaza, dok je u posljednjih 5 metara razvijena biocenoza potpuno tamnih špilja i prolaza s dominacijom Polychaeta