Physiology of aquatic animals

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Introduction to Physiology of Aquatic
Organisms
Niño Jess Mar F. Mecha
Instructor

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Learning Objectives
FISH112 – Physiology of Aquatic Organisms
At the end of the topic, the students can:
• understand the objectives, requirements, policies, and the grading system of
the course
• define the physiology
• explain the importance of physiology
• identify the 10 physiological organ systems

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What is Physiology of Aquatic Organisms?
FISH112 – Physiology of Aquatic Organisms
Physiology is “the science of life”.
- It is the branch of biology that aims to understand the mechanisms of
living things, from the basis of cell function at the ionic and molecular level to the
integrated behavior of the whole body and the influence of the external
environment.
- It is the foundation upon which we build our knowledge of what "life" is,
how to treat disease, and how to cope with stresses imposed upon our bodies by
different environments through the response of various organ systems.

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What is Physiology of Aquatic Organisms?
FISH112 – Physiology of Aquatic Organisms
Physiology is generally divided into 10 physiological organ systems:
1. the cardiovascular system,
2. the digestive system,
3. the endocrine system,
4. the immune system,
5. the muscular system,
6. the nervous system,
7. the renal system,
8. the reproductive system,
9. the respiratory system, and
10. the skeletal system.

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What is Physiology of Aquatic Organisms?
FISH112 – Physiology of Aquatic Organisms
The cardiovascular system

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What is Physiology of Aquatic Organisms?
FISH112 – Physiology of Aquatic Organisms
The digestive system

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What is Physiology of Aquatic Organisms?
FISH112 – Physiology of Aquatic Organisms
The endocrine system

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What is Physiology of Aquatic Organisms?
FISH112 – Physiology of Aquatic Organisms
The immune system

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What is Physiology of Aquatic Organisms?
FISH112 – Physiology of Aquatic Organisms
The muscular system

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What is Physiology of Aquatic Organisms?
FISH112 – Physiology of Aquatic Organisms
The nervous system

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What is Physiology of Aquatic Organisms?
FISH112 – Physiology of Aquatic Organisms
The renal system

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What is Physiology of Aquatic Organisms?
FISH112 – Physiology of Aquatic Organisms
The reproductive system

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What is Physiology of Aquatic Organisms?
FISH112 – Physiology of Aquatic Organisms
The respiratory system

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What is Physiology of Aquatic Organisms?
FISH112 – Physiology of Aquatic Organisms
The skeletal system

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What is Physiology of Aquatic Organisms?
FISH112 – Physiology of Aquatic Organisms
Aquatic Organisms are any animals, whether vertebrate or invertebrate, that
lives in water for most or all of its lifetime.
Vertebrates
 Fishes
 Aquatic mammals
 Aquatic reptiles
Invertebrates
 Mollusks
 Crustaceans

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What is Physiology of Aquatic Organisms?
FISH112 – Physiology of Aquatic Organisms
Aquatic Organisms are any animals, whether vertebrate or invertebrate, that
lives in water for most or all of its lifetime.
Vertebrates
 Fishes
 Aquatic mammals
 Aquatic reptiles
Invertebrates
 Mollusks
 Crustaceans

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Any questions?
FISH112 – Physiology of Aquatic Organisms

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References
FISH112 – Physiology of Aquatic Organisms
American Physiological Society. 2022. What is Physiology? Available at:
https://www.physiology.org/career/teaching-learning-resources/student-resources/what-is-physiology
Gonzaga University. 2022. What is Physiology? Available at: https://www.gonzaga.edu/school-of-nursing-
human-physiology/
The Physiological Society. 2022. What is Physiology? Available at: https://www.physoc.org/explore-
physiology/what-is-physiology