Introduction and Diversity
Students will gain an understanding of the theories surrounding the emergence of animal life, early fish groups.
Learn about fish distribution with regard to marine and freshwater systems, understand speciation and its contribution to diversity.
This module explores fish evolution including: modern forms of jawless fish, divisions of the Chondrichthyes, factors affecting the extinction of the Ostracoderms, aspects of modern shark diversity, the existence of Acanthodians and how swim bladder development was a major key in Ostiechthian evolution.
This unit explores the following: How buoyancy is controlled in a number of ways, how fin design can aid buoyancy control, how dense substances are utilised in certain fish to control buoyancy, how buoyancy control is a major contributor to fish diversity, how some Osteichthyes have physoclistous and some have physostomous swim bladders, the diversity of bony fish and the relevance of the swim bladder in the creation of such diversity.
This unit explores pheromone communication, the role of anti-predator communication in fish biology, how colouration is utilised in communication, how schooling and colouration interact, how strips affect fish communication and survival.
Learn about the role of recombination in creating diversity, understand the reasons why some fish change sex, appreciate the diversity of fish reproduction via Balons classification, understand the diversity of parental care, learn about the factors and theories regarding which sex takes care of the young and understand examples of the diversity of fish reproduction.
Students will learn how some fish are able to orient to an electric field, why fish often have separate juvenile and adult habitats, how scent navigation occurs in some fish migration.
This unit also explores the terms amphidromy, catadromy, diadromy, anadromy and oceanodromy.
This unit explores: The relevance of gill filament thickness, the gill ventilation process, the adaptive advantages of cutaneous gas exchange and the anatomy of gills.
Basic Anatomy and Physiology
Students will learn about the different qualities of the marine polar environment, nototheniod fish adaptation, the benthic zone and the pressures that are put upon fish that exist in such an environment and gain an understanding of the terms benthopelagic, bathypelagic and mesopelagic.
Habitats and Ecology
The final module of the Ichthyology course includes the following: Understand the basic anatomy of fish, how electro-reception as a hunting and environmental monitoring adaptation, the basics of fish hearing, the basic anatomy and physiology of the lateral line system