Ichthyofauna


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Ichthyofauna

 

the aggregate of fishes of any body of water or basin of a zoogeographic region and the aggregate of fishes inhabiting the earth at any given period of its history. The ich-thyofauna of most basins is not uniform in origin; it is composed of species differing in their geographic origin and grouped in different faunal complexes. For example, the ichthyofauna of the Aral basin is composed of the highland-Asiatic faunal complex and of the Ponto-Caspian, the Turkestan, and other complexes. The diversity of the ichthyofauna is determined by the initial faunal complexes that formed a given ichthyofauna, by the history of the basin, and by present-day life conditions of the various species of fishes. As a rule, in the number of species the ichthyofauna of tropical waters is the more diverse, and most diverse is the ichthyofauna of the equatorial waters of the western Pacific Ocean. The poorest ichthyofauna is that of the arctic waters.

References in periodicals archive ?
Therefore, changes in beta dispersion indicated that river ichthyofauna have become increasingly similar over time.
Spatial and temporal variations of diurnal ichthyofauna on surf-zone of Sao Francisco do Itabapoaba Beaches, Rio de Janeiro State, Brazil.
It is reported to be an important component of the ichthyofauna in both regions (Mueter and Norcross, 2000; Mecklenburg et al.
There is also an interesting difference in H' between the ichthyofauna of Upper Harmon Creek (UHC) and Lower Harmon Creek (LHC), 0.
In the first group it was possible to observe stretches closer to the lagoon in which the channel width and the flow explained the ichthyofauna composition.
Thus, reservoirs can endanger local ichthyofauna once they transform a lotic and diversified system in a more simplified lentic environment (Agostinho et al.
With this in mind, it is therefore important to protect the sites that are crucial to fish existence (spawning grounds, migration routes), as well as to preserve periodical river floods as it is according to the natural rhythm of ebbs and flows that river ichthyofauna accomplish their lifecycle.
The Ichthyofauna associated with an intertidal creek and adjacent eelgrass beds in the Kariega Estuary.
The physicochemistry, plankton and ichthyofauna of Mid-Cross River-floodplain ecosystem, Southeast, Nigeria.
This period of expeditions and research had yielded a large quantity of ichthyofauna (as well as other animal and plant specimens) which had been deposited in the Leningrad Zoological Institute where Andriashev was working.