Kniha Octopus M. J. Wells

Octopus

Physiology and Behaviour of an Advanced Invertebrate

Autor: M. J. Wells
Jazyk: Angličtina
Vazba: Brožovaná
Vydavatel: Springer
Dostupnost: Skladem u dodavatele
Odesíláme za 5-8 dnů
2 514
between the organ systems of cephalopods and those of less ambitious molluscs. Octopus does, as we w...

Informace o knize

Autor
Jazyk
Angličtina
Vazba
Kniha - Brožovaná
Vydáno
2013
Stránek
417
EAN
9789401724708
ISBN
9401724709
Enbook ID
02258421
Vydavatel
Hmotnost
552
Rozměry
140 x 215 x 26

Kompletní popis

between the organ systems of cephalopods and those of less ambitious molluscs. Octopus does, as we would predict, live close to the limits set by its own physiology. The circulation, to take one example, is barely adequate for such an active animal, mainly because of the absence of any system for pack aging the blood pigment; haemocyanin in solution is a poor oxygen carrier. Cephalopod blood can transport less than 5 millilitres of oxygen per 100 ml of blood (compared with about 15 vol% in fish) and the whole supercharged system of triple hearts, high blood pressure and pulsating blood vessels succeeds only in returning blood that retains less than 30% of its dissolved oxygen by the time it reaches the gills. This at rest; the effect of exercise is immediate and surprisingly long lasting even in octopuses as small as 300 g, which must very swiftly run into oxygen debt when they flee from predators or pursue their prey (Sections 3.2.2, 3.2.4). Digestion, too would seem to be limiting. As with other molluscs, digestion in Octopus is based on secretion absorption cycles by a massive diverticulum of the gut, an adequate system in a less hectic past, but scarcely appropriate in a predator that must be an opportunist in the matter of feeding. Octopus feeds mainly at night, and spends a great deal of every day sitting at home.

Mohlo by vás zajímat

5 079

Geriatrics

A.N. Exton-Smith
1 147
566

Marvin and the Man

Randall Croom
282
364

Still Stuck

Shinsuke Yoshitake
237
237

Pulse

John Lutz
667

Out of the Storm

Anthony B Cochran
643

Once Upon a River

Diane Setterfield
220

Minter-Isms

Larry Warsh
285

Women in Nazi Society

Jill Stephenson
1 850
5 502

Pornography in a Free Society

Gordon HawkinsFranklin E. Zimring
1 077
1 407

Zákaznicí kteří koupili tuto knihu koupili také

4 414

Blood On The Rooftops

Gerd Steinkoenig
241
231

Die Gichtgas-Reinigung

Wolf Adolf Euler
1 071