1. Occurrence of ribbon fish (Trachipterus trachypterus) In Slovenian waters (Northern Adriatic Sea)Lovrenc Lipej, Domen Trkov, Borut Mavrič, 2018, drugi znanstveni članki Povzetek: On 6th May 2018 a juvenile specimen of ribbon fish (Trachipterus trachypterus) was collected in shallow waters in Izola (Slovenia, northern Adriatic Sea). It measured 403 mm in total length and weighed 37.1 g. In stomach, fragments of seagrasses, pollen cones of pine, petals of terrestrial plant, fragments of terrestrial grass and beetles were found among food remains. The possible causes of this finding in Slovenian waters could be attributed to the ingression of southern Adriatic waters in its northern part. The specimen studied in this paper is the fifth record of this species in the Slovenian part of the Adriatic Sea. The cooperation between ichthyologists and fishermen proved to be crucial for the detection of the ribbon fish and other rare and less-known fish species, as well.
Ključne besede: ribbon fish, occurrence (biology), diet, Adriatic Sea
Objavljeno v DiRROS: 07.08.2024; Ogledov: 199; Prenosov: 148
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2. The importance of population contextual data for large-scale biomonitoring using an apex predator : the Tawny Owl (Strix aluco)Urška Ratajc, Rui Lourenço, Silvia Espín, Pablo Sánchez Virosta, Simon Birrer, Dani Studler, Chris Wernham, Al Vrezec, 2023, pregledni znanstveni članek Povzetek: Top predators are often used as sentinel species in contaminant monitoring due to their exposure and vulnerability to persistent, bioaccumulative and, in some cases, biomagnificable contaminants. Some of their ecological traits can vary in space and time, and are known to influence the contamination levels and therefore information on ecological traits should be used as contextual data for correct interpretation of large-scale contaminant spatial patterns. These traits can explain spatiotemporal variation in contaminant exposure (traits such as diet and dispersal distances) or contaminant impacts (traits such as population trend and clutch size). The aim of our research was to review the spatial variation in selected contextual parameters in the Tawny Owl (Strix aluco), a species identified by the COST Action European Raptor Biomonitoring Facility as one of the most suitable candidates for pan-European biomonitoring. A considerable variation in availability of published and unpublished contextual data across Europe was found, with diet being the most extensively studied trait. We demonstrate that the Tawny Owl is a suitable biomonitor at local scale but also that taking spatial variation of other contextual data (e.g. diet) into account is necessary. We found spatial gaps in knowledge about the species ecology and biology in Southern Europe, along with gaps in certain population parameters (e.g. population trends) in several countries. Based on our findings, we proposed a minimal recommended scheme for monitoring of population contextual data as one of the first steps towards a pan-European monitoring scheme using the Tawny Owl.
Ključne besede: raptors, sentinel species, contamination exposure, contamination impact, diet, minimal recommended monitoring scheme
Objavljeno v DiRROS: 05.08.2024; Ogledov: 197; Prenosov: 161
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3. Small but voracious : invasive generalist consumes more zooplankton in winter than native planktivoreŽiga Ogorelec, Alexander Brinker, Dietmar Straile, 2022, izvirni znanstveni članek Povzetek: In recent years, Lake Constance has experienced an invasion and domination of three-spined stickleback (Gasterosteus aculeatus) in the pelagic zone, which has coincided with a decline in the native whitefish (Coregonus wartmanni) population. Similar massive invasions of sticklebacks into pelagic zones have been recognized also in marine areas or small lakes worldwide. However, their diet overlaps with native species is rarely evaluated, especially in the winter season, which often presents a bottleneck for fish survival. In this study, we compared the diet of pelagic sticklebacks with the diet of the substantially larger native whitefish in different seasons, to evaluate the threat of the recent stickleback invasion on whitefish populations. By monthly sampling of zooplankton and both fish species diets, we could demonstrate that sticklebacks select similar prey throughout most of the year and consume more prey than whitefish during the winter. With relations between prey availability and prey selection, interspecific and intraspecific seasonal diet variability and indices like a prey-specific index of relative importance, we discuss the importance of zooplankton species traits and abundance for whitefish and stickleback predation. This study shows that sticklebacks, despite their small size, represent a serious potential diet competitor to native planktivorous fish. Sticklebacks quickly adapt to new environments, and thus we advocate precautions regarding their introduction into similar lakes as Lake Constance, as this could cause irreversible ecological changes.
Ključne besede: Bythotrephes longimanus, Lake Constance, overwintering strategy, pelagic whitefish diet, planktivory, predator size, seasonal prey selection, stickleback invasion
Objavljeno v DiRROS: 18.07.2024; Ogledov: 285; Prenosov: 195
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4. An insight into the feeding ecology of Serranus Scriba, a Shallow water mesopredator in the Northern Adriatic Sea, with a non-destructive methodAna Lokovšek, Martina Orlando-Bonaca, Domen Trkov, Lovrenc Lipej, 2022, izvirni znanstveni članek Povzetek: Serranus scriba is a common member of the coastal fish community in the Adriatic Sea, but knowledge about its feeding ecology is scarce. The aim of this paper is to present new evidence about its food preferences and feeding habits. An innovative non-destructive method of fecal pellet analysis was used for this study. This method does not require sacrificing specimens and the fish can be released back into the sea alive after the laboratory work. The results demonstrated that S. scriba mainly preys on decapods, followed by polychaetes, isopods, fish, mollusks and swarming shrimps. The calculated index of trophic diversity (ITD) value of 0.89 indicates that it is an opportunistic feeder that feeds on a wide range of different prey. According to the calculated trophic level of 3.43, which is higher than that of other members of the community, S. scriba is also an important piscivorous predator. With age, S. scriba undergoes an ontogenetic shift. The proportion of crustaceans, gastropods and polychaetes decreases with age and body size, while the proportion of fish increases.
Ključne besede: coastal fishes, diet, non-destructive method, non-lethal method, painted comber, northern Adriatic
Objavljeno v DiRROS: 17.07.2024; Ogledov: 217; Prenosov: 138
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5. Dietary acid load but not Mediterranean diet adherence score is associated with metabolic and cardiovascular health state : ǂa ǂpopulation observational study from Northern ItalyJuana Maria Sanz, Domenico Sergi, Simona Colombari, Eleonora Capatti, Roberta Situlin, Gianni Biolo, Filippo Giorgio Di Girolamo, Stefano Lazzer, Boštjan Šimunič, Rado Pišot, Angelina Passaro, 2022, izvirni znanstveni članek Povzetek: Diet plays a pivotal role in shaping the trajectory of chronic diseases. In this regard, the Mediterranean diet has been widely shown to exert beneficial effects on cardiometabolic health. On the contrary, the Western diet, which has also been reported to be an acidogenic dietary pattern, elicits detrimental effects on both metabolic and cardiovascular (CV) health. However, the role of dietary acid load (DAL) as a predictor of cardiometabolic prognosis remains to be elucidated. Thus, this study aims to compare Mediterranean diet adherence (MDA) and DAL focusing on their relationship with metabolic and CV prognosis. A total of 448 individuals aged 55–80 years were grouped depending on their MDA, assessed using food frequency questionnaires, or DAL, evaluated using potential renal load acid (PRAL) and net-endogenous acid production (NEAP). Study participants underwent anthropometric and biochemical measurements. The metabolic syndrome (MetS) prevalence was evaluated according to the National Cholesterol Education Program-Adult Treatment Panel III. Finally, the CV risk was evaluated using three independent algorithms: atherosclerotic cardiovascular disease (ASCVD), European Systematic COronary Risk Evaluation (SCORE), and Cuore risk scores. Mediterranean diet adherence was negatively associated with PRAL and NEAP. Individuals in the higher MDA tertile group had higher HDL cholesterol as well as lower homeostasis model assessment index (HOMA-IR) and fat mass relative to the lowest MDA tertile. However, in the high-MDA tertile group, there was neither a significantly lower MetS prevalence nor CV risk. Instead, both the MetS prevalence and CV risk were higher in individuals in the higher acid PRAL quartile relative to the lower alkaline PRAL quartile. Dietary acid load, especially assessed using PRAL but not MDA, was associated with indices of metabolic and CV prognosis. Thus, DAL assessed by 24-h dietary recalls may represent a better predictor of cardiometabolic health if compared to MDA evaluated using food frequency questionnaires.
Ključne besede: Mediterranean diet, dietary acid load, alkaline diet, acidic diet, metabolic syndrome, cradiovascular risk score
Objavljeno v DiRROS: 19.05.2022; Ogledov: 1037; Prenosov: 612
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6. Cabbage and fermented vegetables : from death rate heterogeneity in countries to candidates for mitigation strategies of severe COVID-19Jean Bousquet, Josep M. Antò i Boquè, Wienczyslawa Czarlewski, Tari Haahtela, Susana C. Fonseca, Guido Laccarino, Hubert Blain, Alain Vidal, Aziz Sheikh, Cezmi A. Akdis, Torsten Zuberbier, Samo Kreft, Klemen Jenko, Maja Jošt, Peter Kopač, Mitja Košnik, Karmen Kramer Vrščaj, Bojan Madjar, Davor Plavec, Tanja Soklič, Jure Urbančič, Mihaela Zidarn, 2020, izvirni znanstveni članek Povzetek: Large differences in COVID-19 death rates exist between countries and between regions of the same country. Some very low death rate countries such as Eastern Asia, Central Europe or the Balkans have a common feature of eating large quantities of fermented foods. Although biases exist when examining ecological studies, fermented vegetables or cabbage were associated with low death rates in European countries. SARS-CoV-2 binds to its receptor, the angiotensin converting enzyme 2 (ACE2). As a result of SARS-Cov-2 binding, ACE2 downregulation enhances the angiotensin II receptor type 1 (AT1R) axis associated with oxidative stress. This leads to insulin resistanceas well as lung and endothelial damage, two severe outcomes of COVID-19. The nuclear factor (erythroid-derived 2)-like 2 (Nrf2) is the most potent antioxidant in humans and can block the AT1R axis. Cabbage contains precursors of sulforaphane, the most active natural activator of Nrf2. Fermented vegetables contain many lactobacilli, which are also potent Nrf2 activators. Three examples are given: Kimchi in Korea, westernized foods and the slum paradox. It is proposed that fermented cabbage is a proof-of-concept of dietary manipulations that may enhance Nrf2-associated antioxidant effects helpful in mitigating COVID-19 severity.
Ključne besede: COVID-19, diet, sulforaphane, Lactobacillus, Angiotensin converting enzyme 2, kimchi, cabbage, fermented vegetable
Objavljeno v DiRROS: 07.10.2020; Ogledov: 1683; Prenosov: 405
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7. Is diet partly responsible for differences in COVID-19 death rates between and within countries? : protocol for a systematic reviewJean Bousquet, Josep M. Antò i Boquè, Guido Laccarino, Wienczyslawa Czarlewski, Tari Haahtela, Aram Anto, Cezmi A. Akdis, Hubert Blain, Giorgio Walter Canonica, Karmen Kramer Vrščaj, Tari Haahtela, Mitja Košnik, Anja Koren, Peter Kopač, Maja Jošt, Samo Kreft, Klemen Jenko, Bojan Madjar, Davor Plavec, Tanja Soklič, Jure Urbančič, Mihaela Zidarn, 2020, pregledni znanstveni članek Povzetek: Reported COVID-19 deaths in Germany are relatively low as compared to many European countries. Among the several explanations proposed, an early and large testing of the population was put forward. Most current debates on COVID-19 focus on the differences among countries, but little attention has been given to regional differences and diet. The low-death rate European countries (e.g. Austria, Baltic States, Czech Republic, Finland, Norway, Poland, Slovakia) have used different quarantine and/or confinement times and methods and none have performed as many early tests as Germany. Among other factors that may be significant are the dietary habits. It seems that some foods largely used in these countries may reduce angiotensin-converting enzyme activity or are anti-oxidants. Among the many possible areas of research, it might be important to understand diet and angiotensin-converting enzyme-2 (ACE2) levels in populations with different COVID-19 death rates since dietary interventions may be of great benefit.
Ključne besede: coronavirus, diet, angiotensin-converting enzyme, antioxidant, food
Objavljeno v DiRROS: 09.09.2020; Ogledov: 1770; Prenosov: 1401
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