Ram ventilation, Biology

Assignment Help:

Ram Ventilation

Some fish do not use pumping action for gill ventilation. It has been known for long that large tunas cannot be kept alive in captivity unless they are put in circular tanks where they can swim continuously. The fish swim with their mouths partly open and there are no visible breathing movements. Water flows continuously over their gills. This is known as ram ventilation.

It is now known that many fish breathe by pumping at low speed and change to ram ventilation at high speed. In this case the work of breathing is transferred from the muscles of the opercular pump to the muscles of the body and tail. However, ram ventilation is more economical as far as energy consumption is concerned than opercular pumps at high rates required for fast swimming.


Related Discussions:- Ram ventilation

What will happen without enough insulin, Q. What will happen without enough...

Q. What will happen without enough insulin? Without enough insulin two things can happen. Firstly, the cells of the body will be unable to use the glucose in the blood for ener

What is the difference between anabolism and catabolism, What is the differ...

What is the difference between anabolism and catabolism? Metabolism comprises two opposing processes: anabolism and catabolism. Anabolism is a set of synthesis reactions that t

Causes of extinction, CAUSES OF EXTINCTION - 1 .       HUNTING - ...

CAUSES OF EXTINCTION - 1 .       HUNTING - Man started hunting wild animlas for food and safety trade and fun. It may be subsistence hunting, commercial hunting and sp

Conductometry, conductometry and its uses in biological experiments

conductometry and its uses in biological experiments

Pedology, Pedology: This is the study of soil. Pedology is a type of study...

Pedology: This is the study of soil. Pedology is a type of study of soils in their natural environment. Pedology is one of two main branches of soil science and the other big is e

Micro biology, explane the role of nitrogenase enzyme

explane the role of nitrogenase enzyme

Production of healthcare - contestability and measurability, Normal 0 ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

What is the bone matrix, Q. What is the bone matrix? What are its main comp...

Q. What is the bone matrix? What are its main components? Bone matrix is the content that fills the intercellular space of the osseous tissue the bone matrix is made of mineral

What are the advantages of the closed circulatory system, What are the adva...

What are the advantages of the closed circulatory system over the open circulatory system? The closed circulatory system is more efficient. As blood circulates only inside bloo

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd