The Ichthyofauna of Anzali Lagoon
The present study on the Ichthyofauna of Anzali Lagoon carried out from 1992-94 revealed that 13 families, 36 genera and 42 species and sub-species of fish inhabit the lagoon and its connected rivers their whole life, part of it or immigrate to these waterbodies for reproduction purposes. The Cyprinidae family composes 59.5% of the lagoon's ichthyofauna (21 genera and 25 species and sub-species). Species such as Cyprinus carpio and Esox lucius are the native species of the Anzali Lagoon, while other species, e.g. Rutilus frisii kutum, immigrate to the lagoon from the Caspian Sea. Carassius auratus and Hemiculter leucisculus have been introduced to this aquatic ecosystem unintentionally together with Pseudorasbora parva. A number of the observed species in the Anzali Lagoon have been introduced to this aquatic ecosystem for certain reasons, i.e. cambating Anopheles mosquito Gambusia holbrooki, reducing the aquatic plant Ctenopharyngodon idella, increasing the stocks (Silver carp and Big head carp). Both resident and anadromous population of Stizostedion luciperca, Barbus capito and Cyprinus carpio were observed in the Anzali Lagoon, while other marine species, e.g. Liza aurata and Atherina boyeri had entered the ichthyofauna of the lagoon due to the rising water level of the Caspian Sea and the increment of salinity in the lagoons connecting rivers. Appearance and abundance of Abramis brama and Stizostedion luciperca indicate that the ecological condition of the lagoon is improving.
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| Format: | Journal Contribution biblioteca |
| Language: | Persian |
| Published: |
1998
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| Subjects: | Ecosystem, Appearance, Abundance, Ecological, Ichthyofauna, Genera, Species, Fish, Cyprinidae, Cyprinus carpio, Esox lucius, Rutilus frisii kutum, Carassius auratus, Hemiculter leucisculus, Aquatic, Pseudorasbora parva, Anopheles mosquito, Gambusia holbrooki, Ctenopharyngodon idella, Silver carp, Big head carp, Stizostedion luciperca, Luciobarbus capito, Liza aurata, Atherina boyeri, Abramis brama, |
| Online Access: | http://hdl.handle.net/1834/12591 |
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