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Alestes Baremoze
''Alestes baremoze'', the pebbly fish or silversides, is a species of characin fish from the freshwater systems of northern and western Africa. It has some importance as a commercially exploited food fish. Description ''Alestes baremoze'' is a silver-coloured fish with a bluish-grey dorsum and a white belly, the fins are greyish with an orange coloured lower lobe of the caudal fin. The maximum published length is 43 cm and the maximum published weight is 500g, although sexual maturity is reached at about 20 cm. It belongs to order Characiformes, family Alestidae, and genus ''Alestes''. Histomorphological observations and stomach content analysis suggested that ''A. baremoze'' has morphological adaptations for omnivory Distribution In eastern Africa it is found within Lake Albert, the White Nile and Lake Turkana. In Northern Africa ''Alestes baremoze'' was formerly distributed along the whole of the River Nile in Egypt, including the Nile Delta lakes, Rosetta Branch and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baro River
The Baro River ( am, ባሮ ወንዝ) or Baro/Openo Wenz, known to the Anuak as Openo River, is a river in southwestern Ethiopia, which defines part of Ethiopian border with South Sudan. From its source in the Ethiopian Highlands it flows west for to join the Pibor River. The Baro-Pibor confluence marks the beginning of the Sobat River, a tributary of the White Nile. The Baro and its tributaries drain a watershed in size. The river's mean annual discharge at its mouth is 241 m³/s (8,510 ft³/s). Course The Baro/Openo river is created by the confluence of the Birbir and Gebba Rivers, east of Metu in the Illubabor Zone of the Oromia Region. It then flows west through the Gambela Region to join with the Pibor River, both of them creating the Sobat. Other notable tributaries of the Baro/Openo include the Alwero and Jikawo Rivers. The Baro meets the Pibor river to the west of Jikawo. During the rainy season the river floods to form the huge inundated area to the east and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zoobenthos
Benthos (), also known as benthon, is the community of organisms that live on, in, or near the bottom of a sea, river, lake, or stream, also known as the benthic zone.Benthos from the Census of Antarctic Marine Life website This community lives in or near marine or freshwater sedimentary environments, from s along the , out to the , and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zooplankton
Zooplankton are the animal component of the planktonic community ("zoo" comes from the Greek word for ''animal''). Plankton are aquatic organisms that are unable to swim effectively against currents, and consequently drift or are carried along by currents in the ocean, or by currents in seas, lakes or rivers. Zooplankton can be contrasted with phytoplankton, which are the plant component of the plankton community ("phyto" comes from the Greek word for ''plant''). Zooplankton are heterotrophic (other-feeding), whereas phytoplankton are autotrophic (self-feeding). This means zooplankton cannot manufacture their own food but must eat other plants or animals instead — in particular they eat phytoplankton. Zooplankton are generally larger than phytoplankton, most are microscopic, but some (such as jellyfish) are macroscopic and can be seen with the naked eye. Many protozoans (single-celled protists that prey on other microscopic life) are zooplankton, including zooflagellates, fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benthopelagic
The demersal zone is the part of the sea or ocean (or deep lake) consisting of the part of the water column near to (and significantly affected by) the seabed and the benthos. The demersal zone is just above the benthic zone and forms a layer of the larger profundal zone. Being just above the ocean floor, the demersal zone is variable in depth and can be part of the photic zone where light can penetrate, and photosynthetic organisms grow, or the aphotic zone, which begins between depths of roughly and extends to the ocean depths, where no light penetrates. Fish The distinction between demersal species of fish and pelagic species is not always clear cut. The Atlantic cod (''Gadus morhua'') is a typical demersal fish, but can also be found in the open water column, and the Atlantic herring (''Clupea harengus'') is predominantly a pelagic species but forms large aggregations near the seabed when it spawns on banks of gravel. Two types of fish inhabit the demersal zone: those ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potamodromous
Fish migration is animal migration, mass relocation by fish from one area or body of water to another. Many types of fish migrate on a regular basis, on time scales ranging from daily to annually or longer, and over distances ranging from a few metres to thousands of kilometres. Such migrations are usually done for better feeding or to reproduce, but in other cases the reasons are unclear. Fish migrations involve movements of school of fish, schools of fish on a scale and duration larger than those arising during normal daily activities. Some particular types of migration are ''anadromous'', in which adult fish live in the sea and migrate into fresh water to spawn (biology), spawn; and ''catadromous'', in which adult fish live in fresh water and migrate into salt water to spawn. Marine forage fish often make large migrations between their spawning, feeding and nursery grounds. Movements are associated with ocean currents and with the availability of food in different areas at di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Senegal River
,french: Fleuve Sénégal) , name_etymology = , image = Senegal River Saint Louis.jpg , image_size = , image_caption = Fishermen on the bank of the Senegal River estuary at the outskirts of Saint-Louis, Senegal , map = Senegalrivermap.png , map_size = , map_caption = Map of the Senegal River drainage basin. , pushpin_map = , pushpin_map_size = , pushpin_map_caption= , subdivision_type1 = Country , subdivision_name1 = Senegal, Mauritania, Mali , subdivision_type2 = , subdivision_name2 = , subdivision_type3 = , subdivision_name3 = , subdivision_type4 = , subdivision_name4 = , subdivision_type5 = , subdivision_name5 = , length = , width_min = , width_avg = , width_max = , depth_min = , depth_avg = , depth_max = , discharge1_location= , discharge1_min = , discharge1_avg = , di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gambia River
The Gambia River (formerly known as the River Gambra) is a major river in West Africa, running from the Fouta Djallon plateau in north Guinea westward through Senegal and The Gambia to the Atlantic Ocean at the city of Banjul. It is navigable for about half that length. The river is strongly associated with The Gambia, the smallest country in mainland Africa, which occupies the downstream half of the river and its two banks. Geography The Gambia River runs a total length of . From the Fouta Djallon, it runs northwest into the Tambacounda Region of Senegal, where it flows through the Parc National du Niokolo Koba, then is joined by the Nieri Ko and and passing through the Barrakunda Falls before entering the Gambia at Koina. At this point, the river runs generally west, but in a meandering course with a number of oxbows, and about from its mouth it gradually widens, to over wide where it meets the sea. Crossings There are several bridges crossing the river. The largest an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geba River
The Geba is a river of West Africa that rises in the northernmost area of Guinea in the Fouta Djallon highlands, passes through southern Senegal, and reaches the Atlantic Ocean in Guinea-Bissau. It is about in total length. In Senegal, the river is locally known as the Kayanga. Its tributary the Colufe River joins the Geba at Bafatá. After passing by Geba town and Bambadinca, the river broadens into a wide estuary below Xime (where it is joined by the Corubal River), with a total width of about at Bissau. The estuary widens further as the river flows into the Atlantic, forming the Bissagos Islands archipelago. The Geba River, along with the Corubal River, drains the Bafatá Plateau. It also drains the Gabú Plain, along with the Farim River The Cacheu is a river of Guinea-Bissau also known as the Farim along its upper course. Its total length is about 257 km. One of its major tributaries is the Canjambari River. Course Its headwaters are near the northern border ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sassandra
Sassandra is a town in southern Ivory Coast. It is a sub-prefecture of and the seat of Sassandra Department. It is also a commune and the seat of Gbôklé Region in Bas-Sassandra District. Sassandra lies on the Gulf of Guinea at the mouth of the Sassandra River. The town was founded by the Portuguese as ''Santo André'' and was later run by the British, then the French as a seaport for timber. The town declined in the 1960s after San Pédro's port was completed. Sassandra's main industry is now fishing. Sassandra is known for its beaches and lighthouse, while the Gaoulou National Park lies nearby. It is served by Sassandra Airport. In 2021, the population of the sub-prefecture of Sassandra was 87,945. Villages The thirty eight villages of the sub-prefecture of Sassandra and their population in 2014 are: [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bandama
The Bandama River is the longest river in Ivory Coast with a length of some 800 kilometers. The south-flowing river is fed by the Marahoué, Solomougou, Kan and Nzi rivers and empties into the Tagba Lagoon and the Gulf of Guinea. The Bandama flows through Lake Kossou, a large artificial lake created in 1973 by the construction of the Kossou Dam at Kossou. Yamoussoukro, the capital of Ivory Coast, is located adjacent from the Bandama River. The Rallye Côte d'Ivoire The Rallye Côte d'Ivoire, perhaps better known as the Rallye Bandama as it was originally called, or the Ivory Coast Rally is a rally race held annually in Côte d'Ivoire in Africa. In common with other races on the continent, it is known for its ... is often hosted around the Bandama. External links concise.britannica.comat mongabay.com Rivers of Ivory Coast {{IvoryCoast-river-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Komoé River
The Komoé River or Comoé River is a river in West Africa. The river originates on the Sikasso Plateau of Burkina Faso, flow through the Cascades de Karfiguéla, forms a short section of the border between Burkina Faso and Ivory Coast until it enters Ivory Coast, where it is the major drainage for northeastern portion of that country before emptying into the Atlantic. The banks of the Komoé are shaded by riparian forests along most of it length providing an important habitat for wildlife and a source of agricultural water. Where reliable floodplains form in Ivory Coast, rice may be grown. A portion of the river in northern Ivory Coast is the source of the vegetative richness that earned that area a UNESCO World Heritage Site designation, Comoé National Park. Course The Komoé River is approximately 759 km long. It rises on the Sikasso Plateau and in the Sindou Hills flowing south over several cataracts with several falls including the "Chutes de la Komoé" and Karif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
