Silent Streams? Nearly 40 Percent Of North American Freshwater Fish Now At-Risk 
US Source: Underwatertimes 9/10/2008

Nearly 40 percent of fish species in North American streams, rivers and lakes are now in jeopardy, according to the most detailed evaluation of the conservation status of freshwater fishes in the last 20 years.

The 700 fishes now listed represent a staggering 92 percent increase over the 364 listed as "imperiled" in the previous 1989 study published by the American Fisheries Society. Researchers classified each of the 700 fishes listed as either vulnerable (230), threatened (190), or endangered (280). In addition, 61 fishes are presumed extinct.

The new report, published in Fisheries, was conducted by a U.S. Geological Survey-led team of scientists from the United States, Canada and Mexico, who examined the status of continental freshwater and diadromous (those that migrate between rivers and oceans) fish.

"Freshwater fish have continued to decline since the late 1970s, with the primary causes being habitat loss, dwindling range and introduction of non-native species," said Mark Myers, director of the USGS. "In addition, climate change may further affect these fish."
 

Most Vulnerable Groups

The groups of fish most at risk are the highly valuable salmon and trout of the Pacific Coast and western mountain regions; minnows, suckers and catfishes throughout the continent; darters in the Southeastern United States; and pupfish, livebearers, and goodeids, a large, native fish family in Mexico and the Southwestern United States.

Nearly half of the carp and minnow family and the Percidae (family of darters, perches and their relatives) are in jeopardy. Fish families important for sport or commercial fisheries also had many populations at risk. More than 60 percent of the salmon and trout had at least one population or subspecies in trouble, while 22 percent of sunfishes — which includes the well-known species such as black bass, bluegill and rock bass — were listed. Even one of the most popular game species in the United States, striped bass, has populations on the list.

Regions with the Most Troubled Fish

Regions with especially notable numbers of troubled fish include the Southeastern United States, the mid-Pacific coast, the lower Rio Grande and basins in Mexico that do not drain to the sea.

 
Darter, Holiday Killifish, Waccamaw Continue...

News Id SourceStampcountry
1226The invasive fish threat to lakes and ponds and what needs to be done to eradicate itmsn2023-11-25US
1227Новости с водоемов Волгоградской областиohotniki2023-11-20RU
1228Impermanence is the Opportunity, Says Fish Philosopherwatershedsentinel2023-11-25US
1229Fish rearing facilities offer life support for endangered suckersijpr2023-11-25US
1230What low water levels could mean for Edmonton fish this wintermsn2023-11-18CA
1231Togos tilapia kingthefishsite2023-11-24TO
1232Какая судьба ждет каспийскую воблу?ohotniki2023-11-18RU
1233US regulators will review car-tire chemical that kills salmonseattletimes2023-11-05US
1234Trapped on Chinese squid-fishing ships, crews face beatings, malnutrition and morelatimes2023-11-07CN
1235Forever chemicals in fish worry Charleston anglerscharlestoncitypaper2023-11-10US
1236Survey shows uptick in Lake of the Woods walleye, sauger numbersechopress2023-11-24US
1237DNR, stakeholders to draft new Lake of the Woods management planechopress2023-11-24US
1238Americas eel RAS superstarthefishsite2023-11-15US
1239From taxi driver to trout supremothefishsite2023-11-17IN
1240Карась хорошо клюет до заморозковohotniki2023-11-17RU
1241Koi emerges as new source of souring relations between Japan and Chinaabcnews2023-11-10JP
1242Tasmanian salmon farms could face restrictions to save endangered fishtheguardian2023-11-06AU
1243Nepal’s water hyacinth helps exotic fish invade, harming native speciesmongabay2023-11-07NP
1244Federal Fisheries Department doing a poor job of monitoring fishing industryCBC News2023-11-07CA
1245A story about counting steelhead is an immersive journey to the river.montereycountyweekly2023-11-11US
1246Fishermen threaten to stop fishing, take legal action over massive block of offshore wind farmsportugalresident2023-11-12PT
1247Fishermen Catch Huge Blue Marlin Weighing Over 1,000lbs in Gulf of Mexiconewsweek2023-11-06US
1248Elephantnose Fish ‘Sees’ by Doing an Electric Boogiescientificamerican2023-11-06DE
1249Aucklanders ignore safety warnings to fish in polluted harbourrnz2023-11-09NZ
1250Хороший клев лобастой кефали в Сочиohotniki2023-11-16RU

220 221 222 49 of [223 - pages.]