Search for dissertations about: "box jellyfish"

Found 4 swedish dissertations containing the words box jellyfish.

  2. 1. Visual filtering in box jellyfish: A simple system

    Author : Megan O'Connor; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Tripedalia cystophora; box jellyfish; Cnidaria; Chiropsella bronzie; visual filtering; visual systems; microspectrophotometry; vision; eyes;

    Abstract : Unlike most jellyfish, box jellyfish (cubomedusae) are highly visually orientated. They are agile swimmers and use visual information to avoid obstacles and orientate themselves. READ MORE

  4. 2. The nervous system of box jellyfish: A surprisingly complex system in a simple animal

    Author : Linda Parkefelt; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; proliferating cell nuclear antigen; arginine vasotocin; RFamide; immunofluorescence; visual system; nervous system; Tripedalia cystophora; Cnidaria; box jellyfish;

    Abstract : The four surprisingly complex visual sensory organs of cubomedusae, the rhopalia, contain each six eyes of four morphologically different types, two of which are camera-type eyes. This means that the evolutionary basal nervous system of cubomedusae must process the visual signals received from a total of 24 rhopalial eyes. READ MORE

  5. 3. Visually guided swimming in box jellyfish: A study of swimming behaviour in response to visual stimuli

    Author : Ronald Petie; Funktionell zoologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Vision; steering; swimming; behaviour; box jellyfish; Cubozoa; Tripedalia cystophora; biomechanics;

    Abstract : Most animals use eyes to guide their behaviour. Analysing, and understanding, visually guided behaviours gets more complicated the more advanced the animal gets. Box jellyfish provide a relatively simple system for understanding visually guided behaviours. READ MORE

  6. 4. Computer Vision Based Analysis of Animal Behavior

    Author : Tobias Palmér; Mathematical Imaging Group; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Datorseende; bildanalys; djurbeteende; neurofysiologi; tillämpningar; refraktion; Computer vision; animal tracking; behavioral analysis; refractions; underwater images; relative pose;

    Abstract : The behavior of animals is commonly studied in medicine and biology. There is a large variation in what animals are studied, in experimental paradigms and purpose.However, many studies on animal behavior have at least one thing in common - it typically involves measuring or studying the kinematics of the animal. READ MORE