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.
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
Iratapina River
Iratapina River is a river of Amapá state in Brazil. It is a tributary of the Jari River which is part of the Amazon River basin.
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.
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.
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.
Jari River
The Jari River, or Jary River (), is a northern tributary of the Amazon River on the border between the states of Pará and Amapá in northeastern Brazil. It is in the most downstream regions of the Amazon Basin and borders the Guiana Highlands and the Guianas to the northwest.
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.
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.
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.
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.
Laranjal do Jari
Laranjal do Jari ("Jari Orangery") is a municipality located in the west of the state of Amapá in Brazil. It is the only municipality in the west boundaries of Amapá, except for a small part of Vitória do Jari. Its population is 41,688 and its area is 29,699 km², which makes it the largest municipality of Amapá.
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.
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.
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.
Hiran River
Hiran River is a river in Gujarat in western India whose source is near the Sasa hills in Gir forest. Its drainage basin has a maximum length of 40 km. The total catchment area of the basin is 518 km. Its major tributaries are Saraswati river and Ambakhoi stream, and many other unknown branches make this river almost complete near Talala town. Hiran river is a major river system which supports a variety of wildlife ecological systems and human settlements. Kamleshwar Dam, often known as Hiran1 and Umrethi Dam, are some of the major projects on the river. As the river flows from the western part of Gir forest, it is a major source of water for the forest ecology and biodiversity for the whole year.
General Electric
From circa 1932 until 1977, General Electric polluted the Housatonic River with PCBs discharges from the General Electric plant at Pittsfield, Massachusetts. Aroclor 1254 and Aroclor 1260, made by Monsanto was the primary contaminant of the pollution. The highest concentrations of PCBs in the Housatonic River are found in Woods Pond in Lenox, Massachusetts, just south of Pittsfield, where they have been measured up to 110 mg/kg in the sediment. About 50% of all the PCBs currently in the river are estimated to be retained in the sediment behind Woods Pond dam. This is estimated to be about 11,000 pounds of PCBs. Former filled oxbows are also polluted. Waterfowl and fish who live in and around the river contain significant levels of PCBs and can present health risks if consumed.
Kizir River
The Kizir River (Кизир) is a right tributary of the Kazyr River. It flows for about through the Eastern Sayan Mountains in the Krasnoyarsk Krai of Russia. Its source is located in the Kryzhina Ridge. The river contains many cataracts which make it popular with Siberian rafters. Another tourist attraction is the Kinzelyuk Waterfall, one of the highest in Asia.
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.
North American river otter
Prey is captured with a quick lunge from ambush, or more rarely, after a sustained chase. River otters can remain underwater for nearly 4 minutes, swim at speeds approaching 11 km / h (6.8 mph), dive to depths nearing 20 m (22 yd), and travel up to 400 m (440 yd) while underwater. Several river otters may even cooperate while fishing. Small fish are eaten at the surface, but larger ones are taken to the shore to be consumed. Live fish are typically eaten from the head.
What is the total make up of fish species living in the river system containing Jari River ?
Which river system contains Jari River?
Amazon
What is the total make up of fish species living in the #1 ?
2,200