108 research outputs found
IhtioloÅ”ki doprinosi Juraja KolombatoviÄa (1843-1908)
This paper is dedicated to Juraj KolombatoviÄ, the renowned Croatian natural scientist, who passed away 100 years ago. We recognize this special anniversary by presenting a biography and summary of the scientific achievements of Juraj KolombatoviÄ who gained his greatest success in ichthyological research, a field in which he discovered and described seven new fish species: (4 gobiid species) KolombatoviÄās goby Chromogobius zebratus (KolombatoviÄ, 1891), Liechtensteinās goby Corcyrogobius liechtensteini (KolombatoviÄ, 1891), Millerigobius macrocephalus (KolombatoviÄ, 1891), large-scaled goby Thorogobius macrolepis (KolombatoviÄ, 1891), (3 blenniid species) Parablennius zvonimiri (KolombatoviÄ, 1892), Lipophrys adriaticus (Steindachner & KolombatoviÄ, 1883) and Lipophrys dalmatinus (Steindachner & KolombatoviÄ, 1883). Besides his contributions to basic biological science, he has actively contributed at an early date to cope with fisheries management issues in the region at both, local and international level.Ovaj pregledni Älanak posveÄen je Juraju KolombatoviÄu, poznatom i uglednom hrvatskom prirodoslovcu, kojeg se sjeÄamo povodom 100-godiÅ”njice od njegove smrti. Znanstveni doprinosi Juraja KolombatoviÄa su uglavnom bili unutar ihtiologije, gdje su se oÄitovali prije svega u otkriÄu i prvom znanstvenom opisu sedam vrsta riba: (4 vrste glavoÄa) KolombatoviÄev glavoÄ ili glavoÄiÄ sedlan Chromogobius zebratus (KolombatoviÄ, 1891), Liechtensteinov glavoÄ ili glavoÄiÄ korÄulanski Corcyrogobius liechtensteini (KolombatoviÄ, 1891), glavoÄiÄ batoglavÄiÄ Millerigobius macrocephalus (KolombatoviÄ, 1891), glavoÄiÄ veleljuskaÅ” treÄoperac Thorogobius macrolepis (KolombatoviÄ, 1891), (3 vrste babica) KolombatoviÄeva babica Parablennius zvonimiri (KolombatoviÄ, 1892), jadranska babica Lipophrys adriaticus (Steindachner & KolombatoviÄ, 1883) i babica rupiÄarka Lipophrys dalmatinus (Steindachner & KolombatoviÄ, 1883). KolombatoviÄevi doprinosi se nisu oÄitovali samo u ihtiologiji veÄ i u ribarstvu, poglavito gospodarenju živim bogatstvima mora, i to ne samo na nacionalnoj veÄ i na meÄunarodnoj razini
Biometric properties of damselfish, Chromis chromis (Osteichthyes: Pomacentridae) from the middle Adriatic
Seventeen morphometric and seven meristic body characteristics were examined in 406 specimens of damselfish (234 females and 172 males) caught in the middle Adriatic (near the KorÄula and KopiÅ”te Islands). The differences between the mean values of the measured morphometric characteristics in the males and females were not statistically significant. Modes were identical in males and females for most analyzed morphometric relationships. There were no differences in meristic characters between sexes. Thus, the male and female damselfish population in the middle Adriatic is homogeneous
PREGLED DOSADAŠNJIH ISTRAŽIVANJA PLANKTONSKIH STADIJA BRGLJUNA (Engraulis encrasiocolus L.) U JADRANU
U radu je dan pregled dosadaŔnjih istraživanja planktonskih stadija brgljuna u Jadranu. Na osnovi njihovih rezultata može se utvrditi da se veliki broj autora bavio ekologijom planktonskih stadija brgljuna, Ŕto pokazuje da je brgljun, uz srdelu, u tome pogledu najbolje istražen
Novi nalaz nezaviÄajne vrste lakonogog raka Percnon gibbesi (H. Milne Edwards, 1853) na podruÄju palagruÅ”kog otoÄja (Jadransko more)
Several individuals of non-indigenous grapsid crab Percnon gibbesi (H. Milne Edwards, 1853) have been observed and photographed in the area of Palagruža archipelago (Adriatic Sea, Croatia). This is additional confirmed record of this species in the Adriatic Sea. It suggests subsequent range expansion of this species and provides further evidence of its establishment in Adriatic waters.Nekoliko jedinki nezaviÄajne vrste lakonogog raka, Percnon gibbesi (H. Milne Edwards, 1853) zabilježeno je i fotografirano na podruÄju palagruÅ”kog otoÄja.Ovdje se radi o novim potvrÄenim nalazima za Jadransko more koji ukazuju na postupno Å”irenje prema sjeveru te ujedno pružaju dokaz o uspostavi populacije ove vrste u Jadranu
Biometric properties of axillary sea bream, Pagellus acarne (Osteichthyes: Sparidae), from the eastern Adriatic Sea
O nalazu morskog psa tupana Carcharhinus plumbeus Nardo, 1827 (Carcharhiniformes: Carcharhinidae) u srednjem Jadranu
This paper deals with a new record of a neonatal specimen of Carcharhinus plumbeus Nardo, 1827 which was collected in the middle Adriatic. This specimen probably originates from the nursery area which is located in the northern Adriatic. Evaluating the status of such a sensitive species, especially in nursery areas, represents an essential basis for their successful protection.U radu se opisuje nalaz mladunca morskog psa tupana, Carcharhinus plumbeus Nardo, 1827,
ulovljenog u srednjem Jadranu. Primjerak vjerojatno potjeÄe iz podruÄja Sjevernog Jadrana koje je
ujedno i rastiliÅ”te ove vrste. Poznavanje statusa osjetljivih vrsta, poglavito u podruÄjima koja su od
važnosti za rane životne stadije, predstavlja temelj za njihovu uspjeŔnu zaŔtitu
Razvoj ihtiologije kroz povijest i novi izazovi
One may postulate that manās interest in fish emerged as soon as he was able to express his thoughts and notions as fish, among other animals, were subject of early communications. These were transmitted first by drawings, later by inscriptions and in writings. It was but much later that fishes began to occupy manās interest as objects of science. Aristotleās treatises on āHistory of Animalsā is the first known document dealing with fish as a zoological object. No earlier than in the 16th century fish regained the interest of learned men, among these Olaus Magnus (1490 ā1557), Gregor Mangolt (1498ā1576), Guillaume Rondelet (1507ā1557), Pierre Belon (1512ā1564), Hippolyto (Ippolito) Salviani (1513ā1572) and, above all, Conrad Gesner (1516ā1565). The 17th and more so the 18th century is known as the period of Enlightenment. Respect must be paid to three pioneers in this field, i.e. Francis Willughby (1635ā1672), Peter Artedi (1705ā1735), and Marc Elieser Bloch (1723ā1799) who became clearly aware that the class of fish consists of species which may be classified and typically described as such. After the species concept had been embodied in the scientific way of thinking by LinnĆ©, a tremendous expansion of activities emerged in the field of ichthyology. Many different regions and aquatic localities were researched and described by their fish fauna. In the 19th century until the beginning of the 20th century ichthyology was dominated by disciplines such as taxonomy, descriptive biology and classification. This was followed by more advanced physiological, ecological and ethological research on fishes, yielding quite new insights in modern ichthyology. Nowadays research is largely orientated towards aspects of applied ichthyology, i.e. fishery biology and aquaculture. Fish and ichthyological records, respectively, proceeded discontinuously and recurred periodically. Many scientific questions on fish still remain unsolved, allowing ichthyologists of today to continue working on this highly diverse and species-rich group of vertebrates. In the future new challenges in ichthyology will be emerging in the fields of a) taxonomy, b) evolution and systematics, c) population biology, d) ecology, e) studying unknown regions for their fish fauna, f) expanding and improving an international global catalogue of fishes, g) exploring and analysing not yet recognized literature.Moglo bi se zakljuÄiti da je Äovjekovo zanimanje za ribe iskrsnulo Äim je Äovjek postao sposoban za izražavanje pojmova i misli, jer riba je, zajedno sa ostalim životinjama, bila tema rane ljudske komunikacije. Prvo su ove misli bile izražene kroz crteže, a kasnije kroz simbole i pisani tekst. Ribe su postale predmetom znanstvenog istraživanja znatno kasnije. Aristotelovo djelo āPovijest životinjaā je prvi poznati zapis koji se bavi ribama kao objektom znanosti o životinjama. Tek u 16. stoljeÄu pitanje riba je ponovo zaokupilo zanimanje prosvijeÄenog Äovjeka, izmedju ostalih Olaus Magnusa (1490-1557), Gregora Mangolta (1498ā1576), Guillaume Rondeleta (1507ā1557), Pierre Belona (1512ā1564), Hippolyto (Ippolito) Salviania (1513ā1572), a povrh svega Conrad Gesnera (1516-1565). Sedamnaesto, a posebno osamnaesto stoljeÄe, poznata su kao razdoblja prosvjetljenja. Posebna zasluga se u tom vremenu mora odati trojici zaÄetnika ihtiologije, Francis Willughbyu (1635ā1672), Peter Artediju (1705ā1735), te Marc Elieser Blochu (1723ā1799), koji su veÄ tada bili svjesni da se unutar klase riba mogu jasno i precizno odreÄivati i opisivati vrste u svom punom smislu. Nakon Å”to je Carl von LinnĆ© znanstveno opisao koncept vrste, obimna istraživanja su zapoÄela unutar ihtiologije te ujedno i doprinjela utemeljenju ihtiologije kao posebne znanosti. Brojni predjeli te brojne vodene povrÅ”ine su tada istražene s glediÅ”ta sastava njihove ihtiofaune. Tijekom 19. stoljeÄa, pa sve do poÄetka 20. stoljeÄa, unutar ihtiologije posebna se pozornost posvetila taksonomiji, opisnoj biologiji te klasifikaciji. Kasnije je slijedilo razdoblje znaÄajnog istraživanja riba sa glediÅ”ta fiziologije, ekologije i etologije, Å”to je stvorilo sasvim nove poglede i vidike prema modernoj ihtiologiji. Danas su istraživanja uglavnom usmjerena prema primjenjenoj ihtiologiji, odnosno takozvanoj ribarstvenoj biologiji i akvakulturi. Sakupljanje ihtioloÅ”kih podataka se nastavlja bez prekida, a odreÄena nerijeÅ”ena pitanja se vraÄaju s vremena na vrijeme. Mnoge znanstvene nedoumice vezane uz ribe joÅ” uvijek ostaju, u nekim segmentima, neodgovorene, uslijed Äega danaÅ”nji ihtiolozi i dalje nastavljaju istraživati ovu izuzetno raznoliku grupu kraljeÅ”njaka. BuduÄi izazovi u ihtiologiji su svakako podruÄja: a) taksonomije, b) evolucije i sistematike, c) populacijske biologije, d) ekologije, e) istraživanja raznih lokaliteta neistraženih po pitanju faune riba, f) rada na proÅ”irenju i usavrÅ”avanju meÄunarodnih kataloga riba, i g) istraživanja i analiziranja joÅ” uvijek neprepoznate znanstvene literature
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