|
|
Analysis of selected fish coprolites from the Loučka locality (Moravia; Oligocene, "menilitic Formation")
Vala, Vladimír ; Přikryl, Tomáš (advisor) ; Zajíc, Jaroslav (referee)
The submitted thesis deals with the analysis of selected fish coprolites found in the Loučka site (Moravia; Menilite Fm.). Eleven specimens was selected (provisionally numbered I-XI) of which two were macerated (specimens I and II). The remaining nine specimens were examined at the surface of the sedimentary layers. Recognizable elements were classified to the following taxa: Keasius parvus, Alopias exigua, Squalus cf. alsaticus, Sardinella sardinites, Anenchelum glarisianum, Palimphyes sp., Palaeogadus sp., Gonostomatidae (gen. et. sp. indet.), Perciformes (gen. et sp. indet.), and Teleostei (gen. et sp. indet.). Composition of the studied coprolites I, II and IV suggest that these were produced by shark species Alopias exigua and Squalus cf. alsaticus. Studied coprolites V, VIII, X and XI were produced by some type of undetermined predatory fish (probably piscivore predator). For coprolites III, VI, VII and IX producer can not be determined.
|
|
|
Analysis of selected fish coprolites from the Loučka locality (Moravia; Oligocene, "menilitic Formation")
Vala, Vladimír ; Přikryl, Tomáš (advisor) ; Zajíc, Jaroslav (referee)
The submitted thesis deals with the analysis of selected fish coprolites found in the Loučka site (Moravia; Menilite Fm.). Eleven specimens was selected (provisionally numbered I-XI) of which two were macerated (specimens I and II). The remaining nine specimens were examined at the surface of the sedimentary layers. Recognizable elements were classified to the following taxa: Keasius parvus, Alopias exigua, Squalus cf. alsaticus, Sardinella sardinites, Anenchelum glarisianum, Palimphyes sp., Palaeogadus sp., Gonostomatidae (gen. et. sp. indet.), Perciformes (gen. et sp. indet.), and Teleostei (gen. et sp. indet.). Composition of the studied coprolites I, II and IV suggest that these were produced by shark species Alopias exigua and Squalus cf. alsaticus. Studied coprolites V, VIII, X and XI were produced by some type of undetermined predatory fish (probably piscivore predator). For coprolites III, VI, VII and IX producer can not be determined.
|
|
|
Are Sharks Worth More Alive Than Dead? A Stated Preference Study on Shark Ecotourism in Costa Rica.
Berrios, Alicia Maria ; Ščasný, Milan (advisor) ; Červinka, Michal (referee)
i Charles University Faculty of Social Sciences Institute of Economic Studies MASTER'S THESIS Are Sharks Worth More Alive Than Dead? A Stated Preference Study on Shark Ecotourism in Costa Rica. Author: Bc. Alicia Maria Berrios Supervisor: Mgr. Milan Ščasný PhD. Academic Year: 2016/2017 ii Declaration of Authorship The author hereby declares that he compiled this thesis independently; using only the listed resources and literature, and the thesis has not been used to obtain a different or the same degree. The author grants to Charles University permission to reproduce and to distribute copies of this thesis document in whole or in part. Prague, January 01st , 2017 Signature iii Acknowledgments With boundless appreciation, I would like to extend my gratitude to Mgr. Milan Ščasný PhD., for his incredible support in writing this research. He spent a countless number of hours on this thesis work, and ultimately, this research wouldn't have been possible without him. I would also like to express my gratitude to Carlos Avila, for his generosity in helping me conduct the in-person interviews. I would also like to express my gratitude to Prof. Melville Saayman, who helped tremendously in the experimental design of this work. Thank you to Mgr. Martin Kryl for programming the survey instrument. Lastly, I would like to...
|
guest ::
