অ্যালবার্ট হ্রদ (আফ্রিকা): সংশোধিত সংস্করণের মধ্যে পার্থক্য

 

=== মাছ এবং মাছ ধরা ===

 

Lake Albert has fewer [[Endemism|endemics]] than the other [[African Great Lakes]].<ref name=Witte2009>{{cite book| author1=Witte, F. | author2=M.J.P. van Oijen | author3=F.A. Sibbing | year=2009 | chapter=Fish Fauna of the Nile | pages=647–676 | editor=H.J. Dumont | title=The Nile | series=Monographiae Biologicae | volume=89 | publisher=Springer Science + Business Media B.V | isbn=978-1-4020-9725-6 }}</ref> Although the Albert Nile–the section of the Nile that leaves Lake Albert—has several rapids in the [[Nimule]] region,<ref name=Dumont2009>{{cite book| author=Dumont, H.J. | year=2009 | chapter=A Description of the Nile Basin, and a Synopsis of Its History, Ecology, Biogeography, Hydrology, and Natural Resources | pages=1–21 | editor=H.J. Dumont | title=The Nile | series=Monographiae Biologicae | volume=89 | publisher=Springer Science + Business Media B.V | isbn=978-1-4020-9725-6 }}</ref> these have not effectively isolated the lake from the main Nile sections.<ref name=Witte2009/> In contrast, Lake Edward (and ultimately [[Lake George (Uganda)|Lake George]]) is effectively isolated from Lake Albert by the rapids on the Semliki River, while [[Lake Kyoga]] (and ultimately Lake Victoria) is effectively isolated from Lake Albert by the [[Murchison Falls]] on the Victoria Nile.<ref name=Witte2009/><ref name=Dumont2009/> As a consequence, most of Lake Albert's fish are widespread riverine species also found in the main Nile sections. There are few [[haplochromine]] cichlids; a group that is very diverse in other Rift Valley lakes. Of the six haplochromines in Lake Albert, four are endemic (''[[Haplochromis albertianus]]'', ''[[Haplochromis avium|H. avium]]'', ''[[Haplochromis bullatus|H. bullatus]]'' and ''[[Haplochromis mahagiensis|H. mahagiensis]]'') and two are also found in the Nile (''[[Haplochromis loati|H. loati]]'' and ''[[Pseudocrenilabrus multicolor]]''). In comparison, most of the more than 60 haplochromines in Lake Edward–George and most of the roughly 600 haplochromines in Lake Victoria–Kyoga are endemic.<ref name=Witte2009/> The only other endemic fish species in Lake Albert are the small cyprinid ''Engraulicypris bredoi'' and the endangered Albert lates.<ref name=Witte2009/>