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Academic & Professional Books  Marine & Freshwater Biology  Fishes  Bony Fishes

Der Zwergkärpfling [Least Killifish]

Monograph
Series: Die Neue Brehm-Bücherei: Fish Volume: 683
By: Michael Kempkes(Author)
208 pages, 66 colour & b/w photos, b/w illustrations, and b/w maps; 28 tables
Der Zwergkärpfling [Least Killifish]
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  • Der Zwergkärpfling [Least Killifish] ISBN: 9783894322519 Paperback Jul 2014 Usually dispatched within 1-2 weeks
    £37.99
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Der Zwergkärpfling [Least Killifish]Der Zwergkärpfling [Least Killifish]Der Zwergkärpfling [Least Killifish]Der Zwergkärpfling [Least Killifish]

About this book

Language: German

Least Killifish (Heterandria formosa), despite their rather plain color and small size, are some of the most fascinating aquarium inhabitants. In particular, their reproductive biology is extremely interesting. The only 2 cm large males defend small territories and impress each other with fins that they strain to the point of breaking. They copulate with the about one-third larger females with a special, very movable copulatory organ, called the gonopodium. Then follows an extraordinary gestation during which the females care for their embryos with nutrients. After several weeks of gestation period, they give birth to only a few, now independent, young fish. In the space of a few days more siblings appear.

In his monograph, Michael Kempkes describes these fish in all their facets. They are gorgeous, and can be cared for without great technical effortm, while at the same time being rewarding study objects whose behavior attracts both hobbyists and biologists.

Summary in German:
Zwergkärpflinge (Heterandria formosa) gehören trotz ihres eher schlichten Farbkleides und der geringen Größe zu den faszinierendsten Aquarienbewohnern überhaupt. Vor allem ihre Fortpflanzungsbiologie ist hochinteressant. Die nur 2 cm großen Männchen verteidigen kleine Reviere und imponieren sich gegenseitig mit bis zum Zerreißen angespannten Flossen. Sie begatten die etwa ein Drittel größeren Weibchen mit einem speziellen, sehr beweglichen Begattungsorgan, dem sogenannten Gonopodium. Es folgt eine außergewöhnliche Trächtigkeit, während der die Weibchen ihre unterschiedlich weit entwickelten Embryonen mit Nährstoffen versorgen. Nach einer mehrwöchigen Tragzeit gebären sie nur wenige, sofort selbstständige Jungfische. Im Abstand weniger Tage folgen immer wieder einige Geschwister.

Michael Kempkes beschreibt in seiner Monografie die Zwergkärpflinge in allen Facetten. Es sind hinreißende, ohne großen technischen Aufwand zu haltende Pfleglinge und zugleich lohnenswerte Studienobjekte, deren Verhalten sowohl Aquarianer als auch Biologen in ihren Bann zieht.

Customer Reviews

Monograph
Series: Die Neue Brehm-Bücherei: Fish Volume: 683
By: Michael Kempkes(Author)
208 pages, 66 colour & b/w photos, b/w illustrations, and b/w maps; 28 tables
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