Dužinsko-maseni odnos pedeset litoralnih i obalnih riba u istočnom Jadranu

The length–weight relationship parameters are reported for the fifty littoral and coastal marine fish species from the Eastern Adriatic. Captures were made between the years 2004 and 2017 during sport fishing competitions. The parameters a and b of the equation W = aLb were estimated. The b values ranged from 2.1972 for Spicara smaris (Linnaeus, 1758) to 3.7044 for Salaria pavo (Risso, 1810). The L-W relation for Scyliorhinus stellaris (Linnaeus, 1758), Gobius bucchichi Steindachner 1870, Gobius geniporus Valenciennes 1837 and Lipophrys trigloides (Valenciennes, 1836) are not available in FishBase and presents new data for these species. For some other species, such as Labrus mixtus Linnaeus 1758, there are only two relationships, but none from the Mediterranean, for Gobius paganellus Linnaeus 1758 only four relationships and none from Central and Eastern Mediterranean, while for Labrus merula Linnaeus 1758, Symphodus mediterraneus (Linnaeus, 1758), Symphodus roissali (Risso, 1810), Gobius cobitis Pallas 1814, Gobius cruentatus Gmelin 1789, Gobius niger Linnaeus 1758, Parablennius gatorugine (Linnaeus, 1758), Parablennius sanguinolentus (Pallas, 1814), Salaria pavo (Risso, 1810), and Bothus podas (Delaroche, 1809) very low number of relationships are presented and none from the Adriatic Sea.Parametri dužinsko-masenog odnosa su prijavljeni za 50 litoralnih i obalnih rba iz istočnog Jadrana. Svi primjerci su ulovljeni u periodu 2004-2017 za vrijeme natjecanja u sportskom ribolovu. Parameteri a i b od jednadžbe W = aLb su prezentirani. Vrijednosti b parametra su varirale od2.1972za Spicara smaris (Linnaeus, 1758) do3.7044 za Salaria pavo (Risso, 1810). Dužinsko-maseni odnosi za Scyliorhinus stellaris (Linnaeus, 1758), Gobius bucchichi Steindachner 1870, Gobius geniporus Valenciennes 1837 i Lipophrys trigloides (Valenciennes, 1836) dosad nisu bili dostupni u FishBase. Za neke druge vrste, primjerice Labrus mixtus Linnaeus 1758, postoje samo dva prijavljena odnosa, pri čemu niti jedan nije iz Mediterana, za Gobius paganellus Linnaeus 1758 postoje samo 4 odnosa i nijedan iz središnjeg i istočnog Mediterana, dok za Labrus merula Linnaeus 1758, Sym-phodus mediterraneus (Linnaeus, 1758), Symphodus roissali (Risso, 1810), Gobius cobitis Pallas 1814, Gobius cruentatus Gmelin 1789, Gobius niger Linnaeus 1758, Parablennius gatorugine (Linnaeus, 1758), Parablennius sanguinolentus (Pallas, 1814), Salaria pavo (Risso, 1810) i Bothus podas (Delaroche, 1809) postoji veoma mali broj dužinsko-masenih odnosa, pri čemu niti jedan nije prijavljen za Jadransko more, osim za T. radiates

Pregledna lista morskih riba Albanije

This paper presents an updated checklist of marine fishes of Albania and the first one published in the English language. The checklist contains 262 species compiled from published literature and personal surveys.U ovom se radu prezentira nova pregledna lista morskih riba koje žive u morima Albanije, a ujedno je i prva takva lista publicirana na engleskom jeziku. Lista sadrži 262 vrste riba i sastavljena je korištenjem objavljene literature te podacima iz istraživanja autora

POTENCIJALNA INVAZIVNOST RIBE PAUNA Pterois miles (BENNETT, 1828) U ISTOČNOM JADRANU

Devil firefish Pterois miles is an invasive alien species which has severely impacted biodiversity and ecological processes in invaded areas of the Mediterranean. In recent years, its presence has been documented in several countries of the Adriatic Sea. Based on the negative ecological and socio-economic impacts in other areas of the Mediterranean Sea, the potential invasiveness of devil firefish was analyzed for the coastal areas of the three eastern Adriatic countries (Albania, Croatia and Montenegro) using the Aquatic Species Invasiveness Screening Kit. Generally, based on the average value of the Basic Risk Assessment and the threshold used, the outcomes suggest that this species will be highly invasive in the eastern Adriatic countries. In addition, the results have shown that the most affected sector is represented by the local species populations and relative characteristics, while commercial sectors represent the least affected sector. However, considering that the negative impact of non-native species is not seen directly, the governments of these countries should address this issue as soon as possible.Riba paun Pterois miles je invazivna strana vrsta koja je ozbiljno utjecala na biološku raznolikost i ekološke procese u invadiranim područjima Sredozemlja. Posljednjih godina njegova je prisutnost dokumentirana u nekoliko zemalja Jadranskog mora. Na temelju postojećih negativnih ekoloških i socioekonomskih utjecaja u drugim područjima Sredozemnog mora, procjena potencijalne invazivnosti ribe pauna analizirana je za obalna područja triju istočnojadranskih država (Albanije, Hrvatske i Crne Gore) korištenjem alata Aquatic Species Invasiveness Screening Kit. Općenito, na temelju prosječne vrijednosti ocjene osnovne procjene rizika i korištenog praga, rezultati sugeriraju da će ova vrsta biti visoko invazivna u zemljama istočnog Jadrana. Osim toga, rezultati su pokazali da su najugroženiji sektor lokalne populacije vrsta i relativne karakteristike, dok komercijalni sektori predstavljaju manje pogođeni sektor. Međutim, s obzirom na to da se negativni utjecaji alohtonih vrsta ne promatraju izravno, vlade ovih zemalja trebale bi se pozabaviti ovim problemom što je prije moguće

Karakteristike hrvatske ribarske flote za lov inćuna

Croatia has a fishing fleet of 7559 vessels. Of these, small-scale coastal fishing boats, less than 12 meters in length, makes up 95,7% of the fleet. However, the largest percentage of catches, more than 94%, is made by purse-seiners that are representing only 3% of total fishing vessels. These vessels target small pelagic fish, predominately sardine and anchovy. This paper describes all the technical characteristics of the Croatian purse seiner fleet, based on 113 purse seine vessels registered in 6 Croatian ports and targeting anchovy in order to allow a precise determination of that fleet fishing capacity and subsequent management of the fleet in a responsible and sustainable manner. Comparison of different technical characteristics showed that the length of a vessel corresponds to the amount of the catch as well as to size of the fish. Hence, results confirm superiority of sonar, as a fish-finding device, over sounder in detecting fish shoals, which is prerequisite for purse seine fishing.Hrvatska ribarska flota se sastoji od 7559 plovila. Od toga, brodice za priobalni ribolov, manje od 12 m dužine, čine 95,7% flote. Nasuprot tome, najveći udio u ukupnom ulovu, više od 94%, ost-varuju plivaričarski brodovi koji čine tek 3% od ukupnog broja plovila. Plivaričarska plovila ciljaju prvenstveno malu plavu ribu, uglavnom srdelu i inćuna. Ovaj rad opisuje tehničke karakteristike hrvatske plivaričarske flote na osnovu istraživanja ukupno 113 plovila registriranih u 6 hrvatskih rib-arskih luka, koji ciljaju inćuna, a s ciljem preciznijeg određivanja ribarskog kapaciteta plivaričarske flote, a posljedično i upravljanja tom flotom na odgovoran i održiv način. Usporedba različitih tehničkih karakteristika brodova je pokazala da je dužina plovila u izravnoj korelaciji s količinom ostvarenog ulova po plovilu, a također i s veličinom lovljene ribe. Rezultati su također pokazali da je sonar, kao uređaj za traženje ribe, značajno efikasniji od eho-sondera, u traženju jata riba, što je osnova tehnike plivaričarskog ribolova

Evaluación cuantitativa de la comunidad de peces criptobenónicos en los acantilados profundos del litoral Mediterráneo

The present study provides the first quantitative assessment of cryptobenthic fish species diversity and abundance on hard bottoms below 20 m depth by examining Mediterranean underwater reefs with deep vertical cliffs. Quantitative sampling was performed at depths down to about 45 m and yielded 220 cryptobenthic and 61 epibenthic individuals belonging to 21 species, showing that the cryptobenthic fishes highly outnumbered the epibenthic individuals. The study highlights the high diversity and abundance of this unexplored part of the benthic fish community. The cryptobenthic fish assemblage was dominated by the family Gobiidae in terms of both biodiversity ( > 60% of all species) and abundance ( > 90% of all specimens). Fish species previously considered rare were present and some of them were even numerous in this assemblage. Three out of fourteen recorded habitat variables (depth, rocky cliff surface area vs. the bottom of the cliff area, and the presence of sand as the bottom substrate) were identified as significant for species occurrence. Species were generalist in their choice of shelters since the size and quantity of semi-caves, caves, cavities and even bio-cover type had no significant influence on the species distribution and abundance.Este trabajo presenta una primera evaluación cuantitativa de la diversidad y abundancia de los peces criptobentónicos de fondos duros por debajo de 20 m de profundidad, como ejemplo de acantilados litorales sumergidos del Mediterráneo. Se realizó un muestreo a profundidades cercanas a 45 m de profundidad y se obtuvieron 220 individuos criptobentònicos y 61 epibentónicos pertenecientes a 21 especies. El estudio pone de manifiesto la gran diversidad y abundancia de esta fracción inexplorada de la comunidad de peces bentónicos. La familia Gobiidae domina la comunidad de peces criptobentónicos en biodiversidad y abundancia ( > 60% y > 90% del total de especies respectivamente). Se han observado especies de peces de este grupo consideradas raras, incluso algunas son numerosas. Tres de cada 14 variables registradas del hábitat (profundidad, superficie rocosa del acantilado vs fondo del acantilado y presencia de arena en el sustrato del fondo) fueron significativas para la presencia de las especies. En la elección de los refugios las especies fueron generalistas ya que el tamaño y la cantidad de semicuevas, cuevas, cavidades e incluso tipos de cubierta biológica no tienen influencia significativa en la distribución y abundancia de las especies

Una evaluación cuantitativa de la influencia diaria sobre la comunidad de peces criptobentónicos en la zona infralitoral mediterránea

Cryptobenthic fishes are an underestimated and probably important component of coastal marine ecosystems that are usually overlooked by standard methods for collecting and studying benthic fishes. Studies focusing on cryptobenthic fishes have been rare and all have been based on samples taken during daytime. The present study tested the difference in epibenthic and cryptobenthic fish composition, diel differences in cryptobenthic fish assemblage and diel shifts of infralittoral fish species between hidden and open bottom spaces. It also looked for the significant habitat variables structuring the cryptobenthic fish assemblage. The daylight, sunset and night samples of epibenthic and cryptobenthic fish assemblages were collected from 78 squares of 1 m2 shallow water plots (0.5 to 3 m) on Brač island in the eastern Adriatic. The study recorded 27 species, among which the family Gobiidae dominated fish diversity with 14 species. Cryptobenthic specimens highly outnumbered epibenthic specimens, with a ratio of 7.5 to 1. Species composition of cryptobenthic and epibenthic fish assemblages differed significantly. No diel variation in composition, species richness or abundance of the cryptobenthic fish assemblage was detected. Occurrence frequencies in hidden and open bottom spaces of ambivalent species did not change significantly between times of day, so no dial switches between open and hidden places were apparent. In combination, these results suggest that the cryptobenthic fish assemblage has diel stability and is mostly composed of permanent inhabitants of hidden spaces with domination of miniature gobies. Significant habitat variables for species occurrence were the presence of multiple layers, bottom inclination and the presence of cobbles, while depth also had a large but not significant effect.Los peces criptobentónicos están subestimados y probablemente forman un componente importante de los ecosistemas costeros debido a errores en los métodos de muestreo habituales en peces bentónicos. Los estudios sobre peces criptobentónicos son escasos y generalmente realizados durante el día. El presente trabajo analiza la diferencia en la composición de peces epibentónicos y criptobentónicos, diferencias día-noche entre especies criptobentónicas y cambios diarios de peces infralitorales entre áreas abiertas y ocultas. Asimismo, se analizan las variables del hábitat que estructuran las comunidades criptobentónicas. Se realizaron muestreos durante el día, anochecer y noche de las comunidades epibentónicas y criptobentónicas a partir de 78 cuadrados de 1 m2, entre 0.5 y 3 m en la isla Brač (Adriático oriental). El estudio registró 27 especies, siendo dominante la familia Gobiidae con 14 especies. Los ejemplares criptobentónicos sobrepasan claramente a los epibentónicos (7.5 a 1). La composición de especies de ambas comunidades son muy diferentes. En la comunidad criptobentónica no se observaron ni variaciones diarias en su composición, ni en la riqueza o abundancia de especies. La frecuencia de especies entre zonas abiertas u ocultas no cambia según la hora del día. En conjunto, estos resultados sugieren que la comunidad criptobentónica tiene una estabilidad diaria y que está formada sobre todo por especies que viven en zonas ocultas y por pequeños góbidos. Las variables del hábitat más significativas son la inclinación del fondo y la presencia de bloques, mientras la profundidad influye, pero sin ser significativa

Utjecaj različitih uvjeta skladištenja na dielektrična i senzorska svojstva lubina (Dicentrarchus labrax, L.)

Dielectric properties and sensory assesment of sea bass (Dicentrarchus labrax, L.) stored under six different conditions over a period of 75 hours were investigated. Declines of torrymeter values over time were established under all storage conditions, but showed variability. The correlations between torrymeter readings and Quality Index Method (QIM) results were studied. Significant negative correlations were found between QIM results and torrymeter readings for samples stored in sea water (20-22 oC), storage room (16-18 oC), refrigerated room (2-4 oC) and sea water (10-12 oC). QIM and torrymeter values in slurry ice and ice box samples were not in correlation.Promatrana su dielektrična i senzorska svojstva lubina (Dicentrarchus labrax,L.) pohranjenog u šest različitih uvjeta skladištenja kroz 75 stati od uginuća. U svim uvjetima skladištenja zabilježen je pad očitanih torimetar vrijednosti (TM) kroz vrijeme koji ukazuju na varijabilnost dielektričnih svojstava. Istraživana je korelacija između TM vrijednosti i senzorskih svojstava ocijenjenih metodom indeksa kvalitete (QIM). Između rezultata QIM metode i TM vrijednosti, u uzorcima skladištenim u morskoj vodi (20-22 oC), skladištu (16-18 oC), ohlađenom skladištu (2-4 oC) i morskoj vodi (10-12 oC), zamjećena je statistički značajna negativna korelacija. U uzorcima iz poleđene morske vode i leda QIM ocjene senzorskih svojstava i TM očitanja nisu u korelaciji

Erectile Dysfunction after Myocardial Infarction – Myth or a Real Problem?

Erectile dysfunction is a common problem whose relation to cardiovascular diseases has scientifically been proved, but it has not been studied sufficiently in patients recovering from myocardial infarction. The objective of this study was to establish the frequency of erectile dysfunction in patients recovering from myocardial infarction. We examined 89 patients (aged 30 to 75 years) included in the program of cardiac rehabilitation after myocardial infarction. The results were compared with 91 healthy examinees of the same age. Even 82% of the patients who recovered from myocardial infarction have problems with erectile dysfunction, compared to 42.9% of healthy examinees. The prevalence of erectile dysfunction increases with the age in both groups. In the group of patients recovering from myocardial infarction aged 30 do 39 years, the erectile dysfunction decreased after 6 months, while in other age subgroups and between controls, there were no significant changes in erectile dysfunction prevalence during the analysed time period.We concluded that erectile dysfunction is a significant problem in patients recovering from myocardial infarction. It should be recognized on time in order to provide a better life quality for the patient with a multidisciplinary approach

Erectile Dysfunction after Myocardial Infarction – Myth or a Real Problem?

Erectile dysfunction is a common problem whose relation to cardiovascular diseases has scientifically been proved, but it has not been studied sufficiently in patients recovering from myocardial infarction. The objective of this study was to establish the frequency of erectile dysfunction in patients recovering from myocardial infarction. We examined 89 patients (aged 30 to 75 years) included in the program of cardiac rehabilitation after myocardial infarction. The results were compared with 91 healthy examinees of the same age. Even 82% of the patients who recovered from myocardial infarction have problems with erectile dysfunction, compared to 42.9% of healthy examinees. The prevalence of erectile dysfunction increases with the age in both groups. In the group of patients recovering from myocardial infarction aged 30 do 39 years, the erectile dysfunction decreased after 6 months, while in other age subgroups and between controls, there were no significant changes in erectile dysfunction prevalence during the analysed time period.We concluded that erectile dysfunction is a significant problem in patients recovering from myocardial infarction. It should be recognized on time in order to provide a better life quality for the patient with a multidisciplinary approach

Rare Diseases of the Vestibular System

Vrtoglavica je jedna od najčešćih tegoba na koju se pacijenti žale liječniku. Može se reći da poremećaj ravnoteže tijekom života doživi oko trećina cjelokupne ljudske populacije pa otuda njegov veliki javnozdravstveni značaj. Ne radi se o jednoj bolesti, već se u slučaju vrtoglavice radi o sindromu koji uključuje stotine različitih uzroka. Liječniku kliničaru to može na prvi pogled djelovati zastrašujuće, ali nakon dublje analize shvaćamo da ogromnu većinu vrtoglavica čini deset najčešćih uzroka, dok se svi ostali mogu svrstati u rijetke bolesti prema važećoj definiciji koja kaže da se svaka bolest koja zahvaća < 5 : 10 000 ljudi smatra rijetkom. Ovo nas upućuje na zaključak da ovakve bolesti nikako ne bi trebalo zanemariti u procesu diferencijalno-dijagnostičkog promišljanja. Može se reći da su rijetke bolesti rijetke, ali da su oboljeli od njih vrlo brojni. Otprilike 5000 - 8000 različitih rijetkih bolesti pogađa 6-8 % stanovništva Europske unije, odnosno između 27 i 36 milijuna ljudi. U ovom tekstu pozornost smo posvetili onim rijetkim vestibularnim poremećajima koji su važni za svakodnevno dijagnostičko, posebice diferencijalno-dijagnostičko promišljanje. Neki od ovih poremećaja, iako po našem mišljenju imaju veliku diferencijalno-dijagnostičku važnost, još uvijek nisu uvršteni na listu rijetkih entiteta ORPHA, dok su s druge strane uvršteni dobro nam poznati i etablirani poremećaji ili pak oni potpuno beznačajni za svakodnevnu liječničku praksu zbog svoje enormno niske učestalosti.Dizziness is one of the most common symptoms that patients complain about to their doctors. It can be said that around one third of the entire human population experiences dizziness during their lifetime, and hence its great public health significance. It is not a single disease, however: in the case of dizziness, it is rather a syndrome, which involves hundreds of different causes. It may seem scary to a clinician, but we might realize subsequent to an in-depth analysis that ten dizziness causes are most common, while the remaining ones might be classified as rare diseases, according to the current definition. Consequently, they should not be ignored in a differential-diagnostic process. Actually, any disease that affects < 5:10.000 people is considered rare. It can be said that rare diseases are infrequent, but the patients suffering from them are numerous. Five to eight thousand different rare diseases affect 6-8% of the European Union (EU) population--that is, between 27 and 36 million people. In this article, we have paid attention to those rare vestibular disorders that are significant for quotidian diagnostics, especially with regard to a differential-diagnostic excogitation method. In spite of their major differential-diagnostic importance, some of these disorders are still not included in the ORPHA list of rare entities. On the other hand, the well-known and established disorders, or those that are completely insignificant for everyday medical practice, are enlisted due to their enormously low frequency