9 results on '"Maja Krželj"'
Search Results
2. Enhancing Diversity Knowledge through Marine Citizen Science and Social Platforms: The Case of Hermodice carunculata (Annelida, Polychaeta)
- Author
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Maja Krželj, Carlo Cerrano, and Cristina Gioia Di Camillo
- Subjects
climate change ,invasive species ,spatiotemporal distribution ,marine benthos ,Mediterranean ,social networks ,Biology (General) ,QH301-705.5 - Abstract
The aim of this research is to set a successful strategy for engaging citizen marine scientists and to obtain reliable data on marine species. The case study of this work is the bearded fireworm Hermodice carunculata, a charismatic species spreading from the southern Mediterranean probably in relation to global warming. To achieve research objectives, some emerging technologies (mainly social platforms) were combined with web ecological knowledge (i.e., data, pictures and videos about the target species published on the WWW for non-scientific purposes) and questionnaires, in order to invite people to collect ecological data on the amphinomid worm from the Adriatic Sea and to interact with involved people. In order to address future fruitful citizen science campaigns, strengths and weakness of each used method were illustrated; for example, the importance of informing and thanking involved people by customizing interactions with citizens was highlighted. Moreover, a decisive boost in people engagement may be obtained through sharing the information about citizen science project in online newspapers. Finally, the work provides novel scientific information on the polychete’s distribution, the northernmost occurrence record of H. carunculata in the Mediterranean Sea and new insights on predatory behavior on other living benthic species.
- Published
- 2020
- Full Text
- View/download PDF
3. New record of Pterois cf. miles (Actinopterygii: Scorpaeniformes: Scorpaenidae) from the eastern middle Adriatic Sea (Croatian waters): Northward expansion
- Author
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Maja Krželj, Damir Zurub, Branko Dragičević, Pero Ugarković, and Jakov Dulčić
- Subjects
Croatian ,Pterois ,biology ,Scorpaenidae ,Actinopterygii ,Scorpaeniformes ,SH1-691 ,invasion, Lessepsian migrant, lionfish, Mediterranean Sea, Pterois miles ,Aquatic Science ,biology.organism_classification ,language.human_language ,Geography ,Oceanography ,Aquaculture. Fisheries. Angling ,language - Abstract
A single specimen of Pterois cf. miles has been recorded in the eastern middle Adriatic Sea. It was observed near the island of Vis at a depth of 15 m. The location of the record is further north than previous Adriatic records and it constitutes the northernmost record of this species in the Mediterranean Sea to date. The record is based solely on photographs and video footage provided by a professional underwater photographer.
- Published
- 2021
- Full Text
- View/download PDF
4. Enhancing Diversity Knowledge through Marine Citizen Science and Social Platforms: The Case of Hermodice carunculata (Annelida, Polycheta)
- Author
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Cristina Gioia Di Camillo, Maja Krželj, and Carlo Cerrano
- Subjects
0106 biological sciences ,social networks ,Emerging technologies ,media_common.quotation_subject ,Distribution (economics) ,Bearded fireworm ,Mediterranean ,010603 evolutionary biology ,01 natural sciences ,marine benthos ,Newspaper ,invasive species ,climate change ,spatiotemporal distribution ,Citizen science ,lcsh:QH301-705.5 ,Nature and Landscape Conservation ,media_common ,Ecology ,biology ,business.industry ,010604 marine biology & hydrobiology ,Ecological Modeling ,Global warming ,Environmental resource management ,Charismatic megafauna ,biology.organism_classification ,Agricultural and Biological Sciences (miscellaneous) ,Geography ,lcsh:Biology (General) ,business ,Diversity (politics) - Abstract
The aim of this research is to set a successful strategy for engaging citizen marine scientists and to obtain reliable data on marine species. The case study of this work is the bearded fireworm Hermodice carunculata, a charismatic species spreading from the southern Mediterranean probably in relation to global warming. To achieve research objectives, some emerging technologies (mainly social platforms) were combined with web ecological knowledge (i.e., data, pictures and videos about the target species published on the WWW for non-scientific purposes) and questionnaires, in order to invite people to collect ecological data on the amphinomid worm from the Adriatic Sea and to interact with involved people. In order to address future fruitful citizen science campaigns, strengths and weakness of each used method were illustrated, for example, the importance of informing and thanking involved people by customizing interactions with citizens was highlighted. Moreover, a decisive boost in people engagement may be obtained through sharing the information about citizen science project in online newspapers. Finally, the work provides novel scientific information on the polychete&rsquo, s distribution, the northernmost occurrence record of H. carunculata in the Mediterranean Sea and new insights on predatory behavior on other living benthic species.
- Published
- 2020
5. Ethnobotanical use of wild growing plants: food, feed and folk medicine in Šestanovac municipality area
- Author
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Maja Krželj and Ivana Vitasović Kosić
- Subjects
edible species ,medicinal herbs ,traditional use ,digitalization ,DalmatianZagora ,jestivo bilje ,ljekovito bilje ,tradicionalna upotreba ,digitalizacija ,Dalmatinska Zagora ,jestivo bilje, ljekovito bilje, tradicionalna upotreba, digitalizacija, Dalmatinska Zagora - Abstract
Čovjek nikada nije napustio korištenje samoniklog bilja u različite svrhe; kao hranu (za ljude i životinje), odjeću, obuću, lijekove, oruđe i oružje tj. za sve što mu je potrebno. Stoga, u cilju očuvanja tradicionalne nematerijalne baštine kao i biljne raznolikosti u ovom su Etnobotaničkom istraživanju, provedenom tijekom 2018. godine, prikupljena tradicionalna narodna znanja o primjeni jestivog i ljekovitog bilja na području općine Šestanovac (Dalmatinska Zagora). Ukupno je zabilježena upotreba 94 svojte, njihovi lokalni nazivi, te načini Korištenja bilja. Rezultati ovog istraživanja pokazuju da se najveći broj vrsta samoniklih biljaka najčešće koristi kao: sirove salate ili kuhano povrće (29), sirovo divlje voće (13), svakodnevni i/ili medicinski čajevi (33), začinske biljke (5), a 25 ih ima specifičnu medicinsku uporabu. Najveći broj vrsta pripada porodicama Lamiaceae (12), Rosaceae (11) i Asteraceae (10). Prema načinu upotrebe inventarizirane biljke su podijeljene na 4 skupine: hrana za ljude, ljekovito bilje, hrana za životinje i prirodni insekticidi. Vrste s najvećom frekvencijom Spominjanja su šparoga (Asparagus acutifolius L.), koromač (Foeniculum vulgare Mill.) i kopriva (Urtica dioica L.), koji se kuhaju zasebno ili kao mješavina lisnatog samoniklog povrća „mišancija“, lovor (Laurus nobilis L.) i ružmarin (Rosmarinus officinalis L.) koji se koriste kao začin i medicinski čaj, kadulja (Salvia officinalis L.) i divlja ruža ili šipurina (Rosa canina L.) koje se uobičajeno koriste kao svakodnevni čaj. Najneobičnija upotreba na istraživanom području je za čuvarkuću (Sempervivum tectorum L.) koja uz široko poznatu upotrebu protiv uhobolje, pomaže kod upalih procesa nakon uboda komarca te bilu slavulju ili bjelušinu (Inula verbascifolia (Willd.) Hausskn.) koja se u nedostatku slame koristi kao stelja (podloga) životinjama u staji. Vrste sakupljene na području istraživanja su herbarizirane, digitalizirane te dostupne on-line u ZAGR Herbariju., Man has never abandoned the use of wild growing plants for various purposes; as food (for humans and animals), clothing, footwear, medicines, tools and weapons i.e. for everything he needs. Therefore, in order to preserve the traditional nonmaterial heritage as well as plant diversity, this ethnobotanical research, conducted in 2018, collected traditional folk knowledge on the application of edible and medicinal plants in the municipality of Šestanovac (Dalmatinska Zagora). A total of 94 taxa, their local names, and ways of using plants were recorded. The results of this research show that the largest number of species of wild growing plants are most often used as: raw salads or cooked vegetables (29), raw wild fruits (13), daily and / or medicinal teas (33), herbs (5), and 25 of them have a specific medical use. The largest number of species belongs to the families Lamiaceae (12), Rosaceae (11) and Asteraceae (10). According to the use, the inventoried plants are divided into 4 groups: food for humans, medicinal plants, animal feed and natural insecticides. The species with the highest frequency are asparagus (Asparagus acutifolius L.), fennel (Foeniculum vulgare Mill.) and nettle (Urtica dioica L.), cooked separately or with other green vegetables, laurel (Laurus nobilis L.) and rosemary (Rosmarinus officinalis L.) used as spice and medicinal tea, sage (Salvia officinalis L.) and rosehip (Rosa canina L.) commonly used as everyday tea. The most unusual use in the studied area is of the Sempervivum tectorum L., which in addition to the well-known use against earache, helps with inflammatory processes after mosquito bites and Inula verbascifolia (Willd.) Hausskn.), which is used as litter for animals in the barn. The collected plant taxa are herbarized, digialized and stored in the herbarium of the Agronomy Faculty, available online (http://herbarium.agr.hr/).
- Published
- 2020
6. Etnobotanička primjena samoniklog bilja: hrana i lijek za ljude i životinje na području općine Šestanovac (Dalmatinska Zagora, Hrvatska)
- Author
-
Maja Krželj, Ivana Vitasović Kosić, Maja Krželj, and Ivana Vitasović Kosić
- Abstract
Čovjek nikada nije napustio korištenje samoniklog bilja u različite svrhe; kao hranu (za ljude i životinje), odjeću, obuću, lijekove, oruđe i oružje tj. za sve što mu je potrebno. Stoga, u cilju očuvanja tradicionalne nematerijalne baštine kao i biljne raznolikosti u ovom su Etnobotaničkom istraživanju, provedenom tijekom 2018. godine, prikupljena tradicionalna narodna znanja o primjeni jestivog i ljekovitog bilja na području općine Šestanovac (Dalmatinska Zagora). Ukupno je zabilježena upotreba 94 svojte, njihovi lokalni nazivi, te načini Korištenja bilja. Rezultati ovog istraživanja pokazuju da se najveći broj vrsta samoniklih biljaka najčešće koristi kao: sirove salate ili kuhano povrće (29), sirovo divlje voće (13), svakodnevni i/ili medicinski čajevi (33), začinske biljke (5), a 25 ih ima specifičnu medicinsku uporabu. Najveći broj vrsta pripada porodicama Lamiaceae (12), Rosaceae (11) i Asteraceae (10). Prema načinu upotrebe inventarizirane biljke su podijeljene na 4 skupine: hrana za ljude, ljekovito bilje, hrana za životinje i prirodni insekticidi. Vrste s najvećom frekvencijom Spominjanja su šparoga (Asparagus acutifolius L.), koromač (Foeniculum vulgare Mill.) i kopriva (Urtica dioica L.), koji se kuhaju zasebno ili kao mješavina lisnatog samoniklog povrća „mišancija“, lovor (Laurus nobilis L.) i ružmarin (Rosmarinus officinalis L.) koji se koriste kao začin i medicinski čaj, kadulja (Salvia officinalis L.) i divlja ruža ili šipurina (Rosa canina L.) koje se uobičajeno koriste kao svakodnevni čaj. Najneobičnija upotreba na istraživanom području je za čuvarkuću (Sempervivum tectorum L.) koja uz široko poznatu upotrebu protiv uhobolje, pomaže kod upalih procesa nakon uboda komarca te bilu slavulju ili bjelušinu (Inula verbascifolia (Willd.) Hausskn.) koja se u nedostatku slame koristi kao stelja (podloga) životinjama u staji. Vrste sakupljene na području istraživanja su herbarizirane, digitalizirane te dostupne on-line u ZAGR Herbariju., Man has never abandoned the use of wild growing plants for various purposes; as food (for humans and animals), clothing, footwear, medicines, tools and weapons i.e. for everything he needs. Therefore, in order to preserve the traditional nonmaterial heritage as well as plant diversity, this ethnobotanical research, conducted in 2018, collected traditional folk knowledge on the application of edible and medicinal plants in the municipality of Šestanovac (Dalmatinska Zagora). A total of 94 taxa, their local names, and ways of using plants were recorded. The results of this research show that the largest number of species of wild growing plants are most often used as: raw salads or cooked vegetables (29), raw wild fruits (13), daily and / or medicinal teas (33), herbs (5), and 25 of them have a specific medical use. The largest number of species belongs to the families Lamiaceae (12), Rosaceae (11) and Asteraceae (10). According to the use, the inventoried plants are divided into 4 groups: food for humans, medicinal plants, animal feed and natural insecticides. The species with the highest frequency are asparagus (Asparagus acutifolius L.), fennel (Foeniculum vulgare Mill.) and nettle (Urtica dioica L.), cooked separately or with other green vegetables, laurel (Laurus nobilis L.) and rosemary (Rosmarinus officinalis L.) used as spice and medicinal tea, sage (Salvia officinalis L.) and rosehip (Rosa canina L.) commonly used as everyday tea. The most unusual use in the studied area is of the Sempervivum tectorum L., which in addition to the well-known use against earache, helps with inflammatory processes after mosquito bites and Inula verbascifolia (Willd.) Hausskn.), which is used as litter for animals in the barn. The collected plant taxa are herbarized, digialized and stored in the herbarium of the Agronomy Faculty, available online (http://herbarium.agr.hr/).
- Published
- 2020
7. Differences in chemical, physical and sensory properties during shelf life assessment of wild and farmed gilthead sea bream (Sparus aurata, L.)
- Author
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Tanja Bogdanović, Alen Soldo, Jasna Maršić-Lučić, Maja Krželj, and Vida Šimat
- Subjects
Thiobarbituric acid ,Flesh ,Trimethylamine ,Sensory system ,Raw fish ,Aquatic Science ,Biology ,Shelf life ,Fishery ,chemistry.chemical_compound ,chemistry ,Lipid content ,Food science ,Water content - Abstract
The aim of this study was to determine and compare differences in physical, chemical and sensory post-mortem changes between wild (W) and farmed (F) gilthead sea bream (Sparus aurata). Ungutted fish were stored in ice from harvesting up to 20 days and freshness indicators were analyzed at regular intervals. Proximate composition of the samples differed in lipid (W = 0.86 ± 0.12 ; F = 4.18 ± 0.16) and moisture content (W = 79.12 ± 0.48 ; F = 74.50 ± 0.82). Data from sensory evaluation were described using linear regression models. Sensory schemes for cooked and raw fish were found to be suitable in establishing specific attribute deterioration and shelf life duration (W = 14 days ; F = 17 days). Changes in pH and dielectric properties were influenced by differences in lipid content, while changes in total volatile base nitrogen and trimethylamine showed high correlation with sensory assessment and storage time, but stayed below the acceptance limit for human consumption (W : 24.47 mg TVB-N ⁄ 100 g and 4.14 mg TMA-N ⁄ 100 g ; F : 26.18 mg TVB-N ⁄ 100 g and 3.84 mg TMA-N ⁄ 100 g), and thus were notreliable indicators of quality changes during storage in ice. Deterioration of flesh lipids, assessed by thiobarbituric acid index, differed between the samples, but presented no serious problem during storage time. In order to determine the importance of individual results, all obtained data were submitted to principal component analysis. Variations in sensory, physical and chemical assessment were described by PC1 (storage time) ; variations in lipid and moisture content were described by PC2 (capture grounds). A clear separation of the investigated samples, according to the storage time and capture grounds, was observed.
- Published
- 2011
- Full Text
- View/download PDF
8. Post-portem migration of Anisakis spp. larvae from viscera into muscle of Eurpean anchovy (Engraulis encrasicolus L.) stored at 0, 4 and 22 ºC
- Author
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Vida Šimat, Jelena Miletić, Tanja Bogdanović, Vedran Poljak, Maja Krželj, Marijana Blažić and Vladimir Kakurinov, Prof. Dr.
- Subjects
Anisakis ,Post-mortem migration ,Biogenic amines ,Anchovy ,Parasite infection ,Storage temperature - Abstract
Accidental ingestion of nematode larvae from genus Anisakis Dujardin, 1845, have been identified to cause a variety of health problems form allergic responses (hypersensitivity reactions to Anisakis spp. allergens) to anisakidosis (gastric or intestinal infections by live larvae). The occurrence of some Anisakis spp. larvae in the musculature of different fish species is inevitable ; however contradictory reports have been published regarding post-mortem migration of nematode larvae from viscera to fillet and it is yet unknown what triggers the migration. It is believed that this migration occurs in fatty fish after elongated storage when the deterioration of viscera has already begun. In this study, the post-mortem migration of Anisakis spp. larvae in anchovy stored at different temperatures was monitored, and the obtained results were correlated to sensory evaluation. Anchovies were stored at 0, 4 and 22 ºC, and its viscera (visual inspection) and fillets (artificial enzymatic digestion procedure) were inspected for nematode larvae at specific time intervals. The migration of larvae was observed in samples stored at 0 and 4 ºC, on fifth and third day of storage, respectively. On day seven of storage nematode prevalence (%) in the muscle rose from zero to 9.50 (at 0 ºC) and to 23.10 (at 4 ºC). In anchovies stored at 22 ºC no post-mortem migration was observed after four days of storage regardless of advanced spoilage process observed. These findings showed that postmortem migration is postponed at 0 ºC thus emphasize the importance of adequate storage temperatures.
- Published
- 2014
9. Application of Principal Component Analysis to Characterize the Effect of Catching Ground on Post-mortem Quality Changes in Ice Stored Sea Bream (Sparus aurata, L.) and Bogue (Boops boops, L.)
- Author
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Vida Šimat, Tanja Bogdanović, Maja Krželj, Vida Šimat, Tanja Bogdanović, and Maja Krželj
- Abstract
Although limited, the existing literature indicates the significant difference in sensory and quality parameters of wild and farmed fish samples of the same species. Post-mortem quality changes of sea bream and bogue samples stored in ice were investigated by sensory (raw and cooked), physical (pH, dielectric properties) and chemical (lipid oxidation, volatile amines, proximate composition) analyses. Principal component analysis (PCA) was applied to study the relationships between the quality parameters during ost-mortem changes of farmed and wild sea bream and two “types” of bogues samples: samples aggregated around fi sh farm cages and natural control population. The PCA analyses showed distinct separation of wild and farmed/farm affected samples. The proportion of variance accounted for by the fi rst two principal components was 90.63 in sea bream and 89.35 % in bogue samples. Variations in storage time, sensory and chemical assessment were described by PC1, whereas variations in catching ground and proximate composition by PC2 in all investigated samples. Sensory evaluation, lipid oxidation index and volatile amine content of bogue samples showed high correlation with storage time; fat and moisture content, together with physical properties underwent the influence of the catching ground. Similar results were determined for sea bream, with exception for physical properties that showed higher correlation with the storage time in ice. Highest correlation with PC1 (>50 % of overall variance) were observed for sensory assessment (r>0.92) in both fish groups. Spoilage evolution over time given as the sum of all demerit points (quality index) showed higher correlation then any single parameters itself, indicating that the individual chemical and physical parameters could not replace the usage of sensory QIM scoring scheme in freshness assessment. PCA analyses were found useful in distinguishing the impact of fish farms on the wild fish populations.
- Published
- 2012
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