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Changes in spatial distribution of gelatinous zooplankton: causes and consequences
Krylová, Pavla ; Petrusek, Adam (advisor) ; Rulík, Martin (referee)
During the day, changes in the spatial distributions of organisms in the water column occur repeatedly, especially in diurnal vertical migrations, which affect abiotic and biotic components of ecosystems. The migratory behaviour occurs worldwide in the oceans and in fresh water, in different habitats and under different physical conditions. The main migrants are gelatinous zooplankton, which are a heterogeneous group of invertebrate animals, although phytoplankton, nekton and other representatives of zooplankton also migrate. The main focus of the study of diurnal vertical migrations is proximate and ultimate factors that influence the migration. Furthermore, occurrence and density of organisms are examined. To study vertical migrations of gelatinous zooplankton, it is the easiest to study jellyfish because of their size. The distribution behaviour might also be observed in freshwater zooplankton. Two university studies of diurnal vertical migration of freshwater jellyfish were executed in previous years. This work aims to: summarise the current knowledge about spatial distribution - especially of diurnal vertical migration, describe in detail proximate and ultimate factors and compare them between freshwater jellyfish, gelatinous zooplankton and jellyfish. Key words: gelatinous zooplankton,...
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Methods and Strategies in Teaching of Cnidarians with Focus on Jellyfish in Biology Education at Primary School
Malúšová, Klára ; Skýbová, Jana (advisor) ; Říhová, Dagmar (referee)
This diploma thesis deals with the topic of phylum cnidaria as it is being taught in biology classes at primary schools and grammar schools. This work is divided into three parts. The first part deals the position of the topic of phylum cnidaria among curricular documents. It states its classification in the Czech Framework education programme (for Elementary Education) and some chosen School Education Programme. Furthermore, this part analyses the topic as it is written in biology class books, with the clause by the Ministry of Education, Youth and Sports of the Czech Republic. Representatives of phylum cnidaria that are mentioned in biology class books are characterised more thoroughly within the scope of the analysis. The second part of the thesis deals with the teaching methods and forms that are used in teaching biology the most frequently and the questionnaire research that tells us which forms and methods are being used the most by teachers to teach about phylum cnidaria and what specific activities they employ in class. The last part of the thesis consists of suggestions for practical activities for teaching the topic of phylum cnidarian inspired by the results of the survey and a description of educational excursion to the World of Jellyfish aquarium with 6th grade pupils. KEYWORDS phylum...
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Changes in spatial distribution of gelatinous zooplankton: causes and consequences
Krylová, Pavla ; Petrusek, Adam (advisor) ; Rulík, Martin (referee)
During the day, changes in the spatial distributions of organisms in the water column occur repeatedly, especially in diurnal vertical migrations, which affect abiotic and biotic components of ecosystems. The migratory behaviour occurs worldwide in the oceans and in fresh water, in different habitats and under different physical conditions. The main migrants are gelatinous zooplankton, which are a heterogeneous group of invertebrate animals, although phytoplankton, nekton and other representatives of zooplankton also migrate. The main focus of the study of diurnal vertical migrations is proximate and ultimate factors that influence the migration. Furthermore, occurrence and density of organisms are examined. To study vertical migrations of gelatinous zooplankton, it is the easiest to study jellyfish because of their size. The distribution behaviour might also be observed in freshwater zooplankton. Two university studies of diurnal vertical migration of freshwater jellyfish were executed in previous years. This work aims to: summarise the current knowledge about spatial distribution - especially of diurnal vertical migration, describe in detail proximate and ultimate factors and compare them between freshwater jellyfish, gelatinous zooplankton and jellyfish. Key words: gelatinous zooplankton,...
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