Curious about studying Marine Biology (Including Year Abroad) - BSc (Hons)at University of Essex? We've gathered all the key details—entry requirements, modules, fees, and more. Hear from real students by checking out reviews, or take the next step by booking an open day to explore it for yourself.
Bachelor of Science (with Honours) - BSc (Hons)
University of Essex
Full Time
Oct 2026
4 Year
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What is the BSc (Hons) Marine Biology?The BSc (Hons) Marine Biology is a three-year degree, extendable to four with an optional year in placement or abroad.
You’ll become a well-rounded marine scientist with a strong knowledge across the spectrum of marine biology and ecology. ###
Why this courseThe BSc (Hons) Marine Biology lets you explore marine biology at all scales, from our on-campus aquaria, to local estuaries and ecosystems, to whole ocean systems on the other side of the planet. You’ll be able to explore our academic staff’s own areas of research such as coral reef conservation, fisheries management, animal behaviour, marine biotechnology and microbiology. With a practical approach to learning, you’ll gain key scientific skills such as data analysis and interpretation, literature, research and presentation skills. You’ll visit local sites with rich diversity and interact with organisations such as the Essex Wildlife Trust, the Environment Agency and Colchester Oyster Fisheries. You’ll also have the opportunity to embark on residential trips to Scotland, Greece and Indonesia, learning to dive and participating in unique underwater research surveys and lectures. Add a placement year or study abroad to put your learning into practice, expand your perspective and build confidence in professional or international settings. You’ll graduate on the path to a marine science or ecology career, ready to help resolve the increasing environmental issues across the world. ###
Who should apply* Future marine biologists and ecologists * Those wanting to further our modern understanding of life below water * Students eager to support and improve marine life and environments * Practical learners wanting hands-on experience
Develop your skillset and boost your CV. This module prepares you for the coursework, laboratory practicals and research projects that you will encounter during undergraduate study. Get to know referencing systems and learn how to effectively communicate scientific information. Use scientific units and simple algebra and demonstrate understanding of logarithms, exponentials, geometry and elementary calculus. Learn how to design experiments, handle data and display, interpret and analyse basic statistics. Teaching and learning will be through a mixture of lectures, classes, practicals and tutorials, with an emphasis on developing the key transferable skills needed for a career in biosciences.
Why do we all look different? Are some illnesses hereditary? Are animals born ready-suited to their environment? From the early theories of Mendel to modern studies in molecular genetics, you explore how scientists have answered these questions over the last 150 years. Examine how the structure and function of DNA allows genetic material to be expressed, replicated and inherited, and consider how genetic variation leads to adaptive evolution. From developing new technologies in gene cloning to the applications for modern medicine, you explore how geneticists are building on the earlier achievements in this fundamentally important field to enhance our understanding of life on earth.
Microbes are essential for life, playing a vital role in connecting the health of humans, animals, and ecosystems. They aid in digestion, provide essential vitamins, and contribute significantly to our overall health and well-being. Marine microbes, for instance, produce approximately one-third of the oxygen we breathe. Additionally, microbes are indispensable for achieving the United Nations' Sustainable Development Goals, as they clean up pollutants and synthesize valuable products like antibiotics. However, not all microbes are beneficial - some cause devastating diseases. Despite significant advances in treatment and prevention, the incidence of infectious diseases continues to rise. In this module, you will explore the vast diversity and evolution of mostly beneficial microbes, alongside the pathogenicity of harmful ones. You will investigate how different viruses and bacteria invade, interact with, and replicate within their hosts. Through two practical sessions in our state-of-the-art teaching laboratory, you will study a food poisoning outbreak and will gain hands-on experience in growing, observing, purifying, counting, and even killing microbes. These sessions will equip you with highly sought-after skills, including aseptic technique, serial dilution, and data analysis.
The marine realm covers 70% of the Earth's surface. It contains ice-covered seas and hydrothermal vents, muddy estuaries, deep ocean trenches and the clear blue open sea. The oceans and seas are also integral to the whole earth-ocean-atmosphere system, which controls the climate and conditions for life on Earth. Discover the different marine environments, the organisms that inhabit them and their ecological interactions. You also investigate the physical and chemical conditions that determine the diversity of marine life and consider how human activity is influencing marine ecosystems, through overfishing, pollution, and climate change. This module has been designed to enable students to integrate their subject knowledge with an understanding of sustainable development, acquiring the skills and competencies essential for addressing the urgent sustainability challenges of the 21st century.
The diversity of life on planet Earth is breath taking. We share our home with a vast number of species, a large portion of which are animals. We will discover the diversity of animal forms and functions and the role of natural selection in determining individual behaviour such as foraging, breeding and predator escape. You also investigate the idea that nothing in ecology and evolution makes sense in isolation. This module has been designed to enable students to integrate their subject knowledge with an understanding of sustainable development, acquiring the skills and competencies essential for addressing the urgent sustainability challenges of the 21st century.
Develop practical field skills that are critical for any practicing Marine Biologist. Spending one week at the Marine Biological Association of the UK in Plymouth, you gain key knowledge of marine invertebrate and algal identification, classification and distribution, developing skills in experimental design, field data-collection and data analysis. Please note that students make their own travel arrangements for this modules. As part of this module you will be required to attend a field trip to Plymouth to the Marine Biological Association of the UK (MBA) where you will develop your field research skills in Biology. The cost for this trip is approximately £50, which you will need to pay. This module has been designed to enable students to integrate their subject knowledge with an understanding of sustainable development, acquiring the skills and competencies essential for addressing the urgent sustainability challenges of the 21st century.
You will develop your transferable skills in scientific writing (including referencing and avoiding plagiarism), teamwork and communication through oral presentations, study and research skills (including essay writing, lecture note taking, use of library and databases). Teaching and learning will be through a mixture of lectures, classes, and tutorials. The emphasis will be on small group, tutorial-style teaching and interaction with other students on this module, with assessments tailored to your degree subject area.
Examine how competition, predation, herbivory, mutualism, disease and parasitism affect the distribution, abundance and growth of populations, and how populations interact to affect the structure and dynamics of ecological communities. You apply this ecological knowledge to real-world problems, such as pest control and conservation. This module has been designed to enable students to integrate their subject knowledge with an understanding of sustainable development, acquiring the skills and competencies essential for addressing the urgent sustainability challenges of the 21st century.
In this career-focused module you develop skills specific to your discipline, such as information retrieval, data-analysis and interpretation techniques, as well as a broader range of transferable skills, such as communication, team-work, numeracy and attention to detail. Learn how to best approach job applications, including CV and cover letter writing, aptitude testing and the interview process.
The importance of marine vertebrates to our aquatic systems cannot be underestimated, yet some of our most iconic underwater species are under serious threat. This module focuses on the taxonomy, physiology, ecology and conservation of the top predators and keystone species, including (but not limited to), whales, dolphins, sharks, rays, manatees, marine turtles and sea snakes.
This module concentrates on the relationship between biological diversity, and aspects of water chemistry and habitat structure in different coastal environments situated along an estuarine gradient. We will be using the Colne / Blackwater estuary complex as our field site.
This module aims to prepare you for carrying out an individual scientific investigation on a topic relating to your degree. Develop skills to identify a suitable question and then design an experimental approach to obtain data addressing this question. The assessment focuses on your analysis and presentation of these data in a suitable scientific paper format report, on the research, understanding and critical writing about the scientific literature relating to your project. Your oral project presentation skills and response to questions, the planning and management of your project work, your progress reflection and your employability skills will also be evaluated. This module has been designed to enable students to integrate their subject knowledge with an understanding of sustainable development, acquiring the skills and competencies essential for addressing the urgent sustainability challenges of the 21st century.
Investigate the relationship between water chemistry and habitat structure, and biological diversity of coastal environments. Getting hands-on in the local Colne/Blackwater estuary you gain experience in assessing environmental variables, sampling protocols and general fieldwork skills. You learn to identify a wide variety of animals and plants at different salinities, as well as associated habitats such as freshwater grazing marshes and salt marshes. You are also trained in commonly used lab techniques, such as measuring phosphate concentrations and sediment properties. This module has been designed to enable students to integrate their subject knowledge with an understanding of sustainable development, acquiring the skills and competencies essential for addressing the urgent sustainability challenges of the 21st century.
Fisheries provide food and employment to millions of people across the globe. Get to know the social and economic drivers of fishing and explore the subsequent impact on marine ecosystems. You gain an understanding of the scale and significance of fisheries and learn to critically analyse the methods used to assess their efficacy. This module has been designed to enable students to integrate their subject knowledge with an understanding of sustainable development, acquiring the skills and competencies essential for addressing the urgent sustainability challenges of the 21st century.
Year Abroad
4.3
