Ukrainian gudgeon
The Ukrainian gudgeon ("Gobio sarmaticus") is a species of gudgeon, a small freshwater fish in the family Cyprinidae. It is widespread in the lower parts of Dniester and Southern Bug drainages in Ukraine and Moldova. It is also likely to be present in the lower Dnieper River. It is a freshwater demersal fish, and grows up to 13 cm length.
Connors Lake
Connors Lake is a lake in Sawyer County, Wisconsin, United States. It is located in the Flambeau River State Forest. The lake covers an area of and reaches a maximum depth of . Fish species enzootic to Connors Lake include bluegill, largemouth bass, muskellunge, smallmouth bass, and walleye.
Ay River
Ay River (, ) is a river in Bashkortostan and Chelyabinsk Oblast in Russia, a left tributary of the Ufa River. The river is long, and its drainage basin covers . The Ay freezes up in late October or early November and remains icebound until mid-April. The cities of Zlatoust and Kusa are along the Ay River. Along the banks of the river, there are many steep cliff sides and caves. The current of the river has been used for hydroelectric power. It is also possible to fish for pike, bleak, and carp, to name a few species.
Amazon rainforest
The region is home to about 2.5 million insect species, tens of thousands of plants, and some 2,000 birds and mammals. To date, at least 40,000 plant species, 2,200 fishes, 1,294 birds, 427 mammals, 428 amphibians, and 378 reptiles have been scientifically classified in the region. One in five of all the bird species in the world live in the rainforests of the Amazon, and one in five of the fish species live in Amazonian rivers and streams. Scientists have described between 96,660 and 128,843 invertebrate species in Brazil alone.
Rupnarayan River
The Rupnarayan River is a river in India. It begins as the Dhaleswari (Dhalkisor) in the Chhota Nagpur plateau foothills northeast of the town of Purulia. It then follows a tortuous southeasterly course past the town of Bankura, where it is known as the Dwarakeswar river. Near the town of Ghatal it is joined by the Shilabati river, where it takes the name Rupnarayan. Finally, it joins the Hoogli River. It is famous for the Hilsa fish that live in it and are used in Bengali cuisine. It is also notable for the West Bengal Power Development Corporation Limited (WBPDCL) thermal power plant built along its bank at Kolaghat in West Bengal. The river also passes through Bagnan in Howrah district.
Zebra mussel
The zebra mussel (Dreissena polymorpha) is a small freshwater mussel. This species was originally native to the lakes of southern Russia and Ukraine, being first described in 1769 by the German zoologist Peter Simon Pallas in the Ural, Volga, and Dnieper rivers. However, the zebra mussel has been accidentally introduced to numerous other areas, and has become an invasive species in many different countries worldwide. Since the 1980s, they have invaded the Great Lakes and the Hudson River. They are commonly found on the bottom of ships and eat the algae that is food for fish. Inspectors check ships for the mussels before they leave port. Scientists are trying to control the mussels.
Danube
The Danube was once a long - standing frontier of the Roman Empire, and today flows through 10 countries, more than any other river in the world. Originating in Germany, the Danube flows southeast for 2,850 km (1,770 mi), passing through or touching the border of Austria, Slovakia, Hungary, Croatia, Serbia, Romania, Bulgaria, Moldova and Ukraine before draining into the Black Sea. Its drainage basin extends into nine more countries. The Danube river basin is home to fish species such as pike, zander, huchen, wels catfish, burbot and tench. It is also home to a large diversity of carp and sturgeon, as well as salmon and trout. A few species of euryhaline fish, such as European seabass, mullet, and eel, inhabit the Danube delta and the lower portion of the river.
Notopteridae
The family Notopteridae contains ten species of osteoglossiform (bony-tongued) fishes, commonly known as featherbacks and knifefishes. These fishes live in freshwater or brackish environments in Africa, and South and Southeast Asia.
Pyasina River
Pyasina River () is a river in Krasnoyarsk Krai, Russia. The river is long, and its basin covers . The Pyasina River originates in Lake Pyasino and flows into the Pyasino Gulf of the Kara Sea. There are more than 60,000 lakes in the basin of the Pyasina covering a total area of . The river freezes up in late September or early October and stays under the ice until June. It is connected to the Chetyrekh River through the Starica right tributary.
Pecos gambusia
The Pecos gambusia ("Gambusia nobilis") is a species of fish in the family Poeciliidae endemic to the Pecos River in Texas and New Mexico in the United States. This two-inch species, as most of its family, is a livebearer. Females produce broods of up to 40 fry every four to five days. The fish are omnivorous, eating algae and small invertebrates, and are endangered due to loss of their spring-fed desert habitat.
Lock Island
Lock Island is an island in the River Thames in England connected to Shepperton Lock, near Shepperton. There is a stretch of open ground where refreshments are served, making the island a popular place to visit or stop and rest. The Thames River Police have a station on the Island. The Weybridge Mariners' Boat Club is also situated there. The island is connected to Hamhaugh Island by a walkway across the weir.
Back River (Virginia)
The Back River is an estuarine inlet of the Chesapeake Bay between the independent cities of Hampton and Poquoson in the Hampton Roads area of southeastern Virginia. Formed by the confluence of the Northwest and Southwest Branches, and at just over two miles long, the Back River is a breeding ground for many of the Bay's prized sport fish and the well known blue crab. The river was once part of an important fishing area that provided the local canneries with the famous Chesapeake seafood that was, and still is in demand throughout the country. Although now used primarily for recreation and as a wildlife refuge, the river remains a great place to spend an afternoon with a fishing rod or a few crab traps. Factory Point, a peninsula that protects the river from the Chesapeake Bay sits at the mouth of the river adjoining the bay.
Juruá River
The Juruá River (Portuguese "Rio Juruá"; Spanish "Río Yurúa") is a southern affluent river of the Amazon River west of the Purus River, sharing with this the bottom of the immense inland Amazon depression, and having all the characteristics of the Purus as regards curvature, sluggishness and general features of the low, half-flooded forest country it traverses.
British Isles
Many larger animals, such as wolf, bear and the European elk are today extinct. However, some species such as red deer are protected. Other small mammals, such as rabbits, foxes, badgers, hares, hedgehogs, and stoats, are very common and the European beaver has been reintroduced in parts of Scotland. Wild boar have also been reintroduced to parts of southern England, following escapes from boar farms and illegal releases. Many rivers contain otters and seals are common on coasts. Over 200 species of bird reside permanently and another 200 migrate. Common types are the common chaffinch, common blackbird, house sparrow and common starling; all small birds. Large birds are declining in number, except for those kept for game such as pheasant, partridge, and red grouse. Fish are abundant in the rivers and lakes, in particular salmon, trout, perch and pike. Sea fish include dogfish, cod, sole, pollock and bass, as well as mussels, crab and oysters along the coast. There are more than 21,000 species of insects.
Dealagh River
The Dealagh is a river of County Clare, western Ireland. It converges with the Inagh River at Lahinch Golf Course and flows into Liscannor Bay at Lahinch. The river is popular with anglers fishing trout between March and September.
Lake Edward
Lake Edward lies at an elevation of 920 metres (3,020 ft), is 77 kilometres (48 mi) long by 40 kilometres (25 mi) wide at its maximum points, and covers a total surface area of 2,325 square kilometres (898 sq mi), making it the 15th-largest on the continent. The lake is fed by the Nyamugasani River, the Ishasha River, the Rutshuru River, the Ntungwe River, and the Rwindi River. Lake George to the northeast empties into it via the Kazinga Channel. Lake Edward empties to the north via the Semliki River into Lake Albert.
Animal
Group Image Subgroup Estimated number of described species Vertebrates Fishes 32,900 Amphibians 7,302 Reptiles 10,038 Birds 10,425 Mammals 5,513 Total vertebrate species: 66,178 Invertebrates Insects 1,000,000 Molluscs 85,000 Crustaceans 47,000 Corals 2,000 Arachnids 102,248 Velvet worms 165 Horseshoe crabs Others 68,658 Total invertebrate species: 1,305,075 Total for all animal species: 1,371,253
Baiji
The baiji population declined drastically in decades as China industrialized and made heavy use of the river for fishing, transportation, and hydroelectricity. It has been credibly claimed, after surveys in the Yangtze River during the 1980s, that baiji could be the first dolphin species in history that humans have driven to extinction. A Conservation Action Plan for Cetaceans of the Yangtze River was approved by the Chinese Government in 2001. Efforts were made to conserve the species, but a late 2006 expedition failed to find any baiji in the river. Organizers declared the baiji functionally extinct. The baiji represents the first documented global extinction of a ``megafaunal ''vertebrate for over 50 years since the demise of the Japanese sea lion and the Caribbean monk seal in the 1950s. It also signified the disappearance of an entire mammal family of river dolphins (Lipotidae). The baiji's extinction would be the first recorded extinction of a well - studied cetacean species (it is unclear if some previously extinct varieties were species or subspecies) to be directly attributable to human influence.
Portugal
There are more than 100 freshwater fish species, varying from the giant European catfish (in the Tagus International Natural Park) to some small and endemic species that live only in small lakes (along the western portion of country, for example). Some of these rare and specific species are highly endangered because of habitat loss, pollution and drought. Up-welling along the west coast of Portugal makes the sea extremely rich in nutrients and diverse species of marine fish; the Portuguese marine waters are one of the richest in the world. Marine fish species are more common, and include thousands of species, such as the sardine (Sardina pilchardus), tuna and Atlantic mackerel. Bioluminescent species are also well represented (including species in different colour spectrum and forms), like the glowing plankton that are possible to observe in some beaches.
Fish River (Namibia)
The Fish River (Visrivier in Afrikaans, Fischfluss in German) is a river in Namibia.  It is 650 km long, flowing from the Naukluft Mountains 150 km to the Hardap Dam near Mariental. From there the flow is entirely blocked, all further flow downstream coming from tributaries downstream from the dam.  The flow of the river is seasonal; in winter the river can dry up completely.  Despite this, the river is the site of the spectacular Fish River Canyon, a canyon 160 km long, and at points as much as 550 m deep.
What is the total make up of fish species living in the river connected to Juruá River?
What river does Juruá River connect to?
Amazon
What is the total make up of fish species living in the #1 ?
2,200