In:
Biologie in unserer Zeit, Wiley, Vol. 47, No. 1 ( 2017-02), p. 46-53
Kurzfassung:
The paradox fecundity of Actinopterygii More than fifty percent of about 70,000 vertebrate species are bony fish or Actinopterygii. These are characterized by two prominent and unique features: very tiny early life stages, independent of species or size, and a seemingly paradox fecundity, depending on size and age of the spawning fish. Usually even small fish produce quantities of eggs outnumbering those of other vertebrates and many invertebrates by two to more than five orders of magnitude. This suggests an unusual reproduction strategy of bony fish compared to other animal species. Due to their abundance, growth rate and consumption habit, little fish convert large amounts of short‐lived plankton biomass to long‐lived fish biomass. This generates a huge depot of food which is exploited by all carnivores living in or at aquatic environments. Not least or even first of all bony fishes themselves exist on this biomass store when grown to a larger size and prefer larger food. This behaviour likely implies an energy gain in a habitat where most biomass is produced by tiny and short lived plankton organisms and stored as fish biomass.
Materialart:
Online-Ressource
ISSN:
0045-205X
,
1521-415X
DOI:
10.1002/biuz.201710613
Sprache:
Deutsch
Verlag:
Wiley
Publikationsdatum:
2017
ZDB Id:
120079-3
ZDB Id:
2006653-3
SSG:
12
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