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Fish physiology


This would imply that the brain possesses some kind of detection ... The gill arches of bony fish typically have no septum, so that the gills alone project from the ... The respiration and circulati...

The Earth Life Web, Thermoregulation in Fish


An introduction to the biology of thermoregulation in fish and sharks. ... By choosing a particular environment a fish can gain some control over it body temperature. ... So to have a more effectively functioning brain and muscles we need to keep them ... do so by means of a counter-current exchange system whereby blood ...

Gallery of Pennsylvania Fishes - Chapter 1, Fish Biology


A few fish, like the lamprey, skates, sharks and rays, have a skeleton of ... Fish have a two-chambered heart and a blood circulatory system. ... Pennsylvania has many different types of fish because it offers many types of aquatic conditions. .... Each fish species has a specific range of water temperatures in which it can live.

Fish - Structure and Function. Biology article by D G Mackean


There are two main groups of fish, bony fish (Teleosts) and cartilaginous fish ( Elasmobranchs). ... Their temperature varies with the temperature of their surroundings. Fish living in warm seas will have correspondingly warm blood .... the type of fish but, in general, the pressure in the mouth cavity is reduced by the floor of the ...

Thermoregulation (rete mirabile) - Sharkproject


Most bony fish (except for tuna) and most sharks are ectothermic. This means ... They are endothermic, which means that they can regulate their own body temperature. There is a network of blood capillaries (Rete mirabile) between their red swimming muscles (in a mackerel shark with a length of 1m, it has a surface of 4m²!) ...

Fish Resource Guide - Understanding Evolution

evolution.berkeley.edu/evolibrary/teach/etol/Fish Resource Guide.pdf

temperature of the environment they are in. ... Though most fishes have scales covering their entire body, some only have ... showing common external and internal features of bony fishes. ... Pectoral Fins – depending on the type of fish, they can be used for swimming and ... carbohydrates and helps destroy old blood cells.

General Biology/Tissues and Systems/Homeostasis - Wikibooks ...


Physiological responses for high body temp: blood goes to body surface, sweating, ... Freshwater fish (bony) dilute urine, and gills actively take up ions ( NaCl) ... Marine fishes: Here the environment has a higher solute concentration than does ...


www.hccfl.edu/media/469840/ch. 5 (oxygen, metabolism, energetics-respiration).ppt

Most fish have external gills that are ventilated by a unidirectional flow of ... Oxygen solubility determined by temperature ... Microscopic gill structure: showing gill filament and lamellae (Red blood cells evident.) ... However, this can only be used consistently by strong swimmers (sharks, tuna). .... Two types of swim bladders:.

fish - Tripod


The largest group of fish, bony fish, have skeletons. ... This means that their blood temperature changes with the temperature of the surrounding water. .... eat mainly other fish but can also eat worms, shellfish, and other kinds of water animals.

Fish - Q-files Encyclopedia


Fish are cold-blooded animals, so their body temperature depends on their surroundings. There are two main groups of fish: the cartilaginous fish, including sharks and ... Most kinds of fish cannot survive out of water, because they do not have ... of their head, it passes over the gills and tiny blood vessels extract the oxygen.

Helpful Resources

Bony Fish Anatomy and Physiology - Sea World


A bony fish's heart has two chambers: an atrium and a ventricle. ... Muscle- generated heat warms the blood circulating through the red muscle, which then travels back ... Its gills alone can't keep a lungfish supplied with enough oxygen to live.

MODULE 2 Ichthyology - SECTION 3 Jawless and Bony Fishes.pdf


one KIND of fish: If you have a tub with three bluegills in it, say: "I have several fish in this tub. ... injected into the host, causing the host to yield more blood. Hagfish are .... Depending on the species, bony fishes can live at various temperatures.

FISH, a quick course on the biology of fishes (Ichthyology)


These fish have a cartilaginous skeleton, but their ancestors were bony animals. ... shark mistook the victim for a more usual kind of food and did not attack any further ... human blood is a powerful attractant that excites sharks into a feeding frenzy. ..... The tunas and mackerel sharks can actually have core body temperatures ...

Shark Savers :: Shark Biology Primer


Though there are variations on this body type, it is the most common shark ... Sharks have five rigid fins which they can't fold down against their bodies (unlike bony fishes). .... blood around their body, feeding their musckes and producing heat.

Sharks & Rays | WiseOceans


Sharks & Rays are FISH, but they are very special fish, they are cartilaginous fish! .... Wobbegong and other bottom living sharks do not have to keep swimming, ... Sharks have two kinds of skeletal muscle (muscle that moves the skeleton). ... This red muscle has a good blood supply and helps the shark to swim slowly for a ...