Last Chance to Save the Delta Smelt?
30/08/2016
California's most controversial threatened species, the Delta smelt, has never been closer to extinction, but a state agency that could help it with the stroke of a pen is failing to do so.
That's according to a group of environmental organizations that are pleading with the State Water Resources Control Board (SWRCB) to force aqueduct operators to leave enough fresh water in the Delta for the smelt.
--
--
The Delta smelt, a three-inch fish that once numbered in the millions in the Bay Delta area, is in trouble for many reasons. Invasive species increasingly compete with smelts for food. Other invasive species eat the smelts. Pollution from much of California eventually drains into the Delta, where it can injure smelts and other wildlife.
But the biggest problem facing the Delta smelt is, at least in an engineering sense, the easiest one to end: the giant pumps that suck Delta water into the federal Central Valley Project and the State Water Project. The pumps have several effects on the Delta ecosystem, but most critically for the smelt they reduce the amount of fresh water flowing through the Delta into the Bay. That lets seawater come farther into the Delta at high tide. And that is bad for the Delta smelt, which thrives only in a relatively narrow range of salinity. The smelt stick to a slightly salty mixing zone where there's about 17 gallons of freshwater for every gallon of saltwater.
Without diversions, that mixing zone shifts with the tides and the seasons, but the smelts can generally cope with that. With diversions, especially in a drought year, the mixing zone moves far inland, drastically narrowing the band of salinity acceptable to the Delta smelt.
Why is the threat from pumping easy to end? Turn off the pumps, and in a short time whatever water is available in the Sacramento starts flowing out to the Bay again. Of course, thats only easy if you ignore the politics.
Earlier this month, the Natural Resources Defense Council (NRDC), Defenders of Wildlife, and the Bay Institute sent a letter to SWRCB urging the agency to enact emergency regulations requiring the federal Bureau of Reclamation (BuRec) and the California Department of Water Resources (DWR) to cut summer pumping of Sacramento River water into the aqueducts of the Central Valley Project and the State Water Project in order to protect the smelt. The groups, which charge that SWRCB is legally obligated to protect the smelt and other threatened species in the Bay and Delta, wants the Board to force the aqueduct operators to reduce pumping until the end of September to protect the Delta smelt's brackish habitat.
So far the Board hasn't acted, despite pleas by state and federal wildlife agencies for increased water for the smelt. NRDC and the other groups are essentially asking the Board to follow the law. We know what to do to save the Delta smelt, said Kate Poole, a senior attorney at NRDC who directs the organization's Wildlife and Water program. We just need to take steps to do it.
The Delta smelts fate is in our hands. | Photo: USFWS/John Ridilla
The SWRCB is legally required to protect the Delta smelt under the California Endangered Species Act; the fish is on the state's Endangered list. The Delta smelt was also listed as Threatened under the federal Endangered Species Act in 1990; an attempt to downgrade its status to Endangered failed a few years back, when the U.S. Fish and Wildlife Service placed the smelt on its Warranted but Precluded list. That means USFWS agrees the Delta smelt ought to be listed as Endangered, but other species in more trouble are ahead of it in line.
It's hard to imagine how much more trouble a species could be in without already being extinct.
Precluded or not, the Delta smelt has never needed the water more. Its numbers have dropped catastrophically in the last two years, and fisheries biologists are holding meetings at which they ask whether the smelt's extinction is inevitable.
Until this year, Delta smelt population estimates have been very rough guesses. Smelts are hard to count: they're small, they're distributed throughout a maze of channels, sloughs and shallows, and they prefer murky, sediment-laden water. Biologists have historically conducted a series of sampling trawls throughout the year, counted the smelts in the nets, and then released those numbers - and how many smelt went unsampled was more or less anyone's guess.
But a new set of mathematical models developed by statistician Ken Newman now allows biologists to take the number of fish sampled in trawls, the amount and quality of available habitat, and other factors to calculate more reliable estimates of smelt numbers. Using historic trawl results gave researchers a glimpse into how the actual population of smelts has changed over the decades. And doing so revealed a stark recent decline for the Delta smelt. In early 2015, the U.S. Fish and Wildlife Service estimates, there were around 112,000 adult Delta smelt remaining in the Delta, an all-time low.
By mid-2016, that had dropped to around 13,000 Delta smelt.
The decline is stark enough, and the ongoing drought bad enough, that on August 2 BuRec and DWR asked the Fish and Wildlife Service to redraft a controversial document required by the Federal Endangered Species Act governing how the two agencies must operate their respective aqueducts to protect the smelt. That document, known as a Biological Opinion or BiOp, details restrictions on how many smelts the projects are allowed to harm in the course of normal operations, and measures the agencies must take to reduce that harm.
From the Sacramento River to the Mojave Desert via the California Aqueduct | Photo: Raymond Shobe, some rights reserved
That's not a step the aqueduct operat
LINK: | https://www.kcet.org/redefine/last-chance-to-save-the-delta-smelt... |
See more stories from kcet |
Most recent headlines
04/08/2024
Dalet Appoints Santiago Solanas as CEO to Lead Next Era of Growth and Innovation
Dalet, a leading technology and service provider for media-rich organizations, is excited to announce Santiago Solanas as its new Chief Executive Officer (CEO)....
03/06/2024
Dalet and Veritone Reach Agreement to Distribute, Transact and Monetize Media Archives
Dalet, a leading technology and service provider for media-rich organizations, a...
02/05/2024
Diamond Sports RSNs Go Dark On Comcast Systems
Bally Sports Regional Networks were taken off Comcast's systems on April 30 when their existing distribution agreement expired and Diamond Sports Group was ...
02/05/2024
Diamond Sports Group, DirecTV Renew Distribution Deal
SOUTHPORT, Conn. and EL SEGUNDO, Calif. Diamond Sports Group ( Diamond or the Company ) and DirecTV have announced that they have reached a multi-year renewal...
02/05/2024
Three Nexstar Stations to Become CW Affiliates
IRVING, Texas Nexstar Media Group has announced that its owned and operated television stations in Chicago, Illinois (DMA #3), Norfolk, Virginia (DMA #43), and ...
02/05/2024
FCC, FTC Ink Agreement to Cooperate on Net Neutrality Enforcement
WASHINGTON, D.C. The Federal Communications Commission and Federal Trade Commission have signed a Memorandum of Understanding to coordinate consumer protection ...
02/05/2024
Haivision Celebrates 20th Anniversary
MONTREAL Haivision Systems Inc. is marking its 20th anniversary by detailing some of the accomplishments and developments that have helped the company become a ...
02/05/2024
Agora Introduces Adaptive Video Optimization Technology
SANTA CLARA, Calif. Agora today unveiled its Adaptive Video Optimization (AVO) technology that uses machine learning to adjust parameters dynamically at every s...
02/05/2024
Study: Streaming Market Is Saturated But Subscriptions Continue to Grow
NEW YORK Kantar has released a new study showing the U.S. streaming market has hit a saturation point, with the household penetration rate stagnating and at nea...
02/05/2024
Samba TV To Spotlight New Capabilities For Generative AI Ad Solution
NEW YORK Samba TV is debuting new capabilities for Samba AI, the company's suite of generative AI technologies, at the 2024 IAB (Interactive Advertising Bur...
02/05/2024
GSTV Pumps Up Research, Programming at NewFront
GSTV, the network that programs screens at gas stations, will be talking about new research and new programming at its NewFront presentation Wednesday....
02/05/2024
May 01, 2024
New technique improves T cell-based immunotherapies for solid tumors Scripps Research scientists help T cells more effectively kill solid tumors cells in vitro ...
01/05/2024
Release Rundown: What to Watch in May, From I Saw the TV Glow to Power
Owen (Justice Smith) and Maddy (Brigette Lundy-Paine) develop an eerie connection to a supernatural TV show in Jane Schoebrun's I Saw the TV Glow....
01/05/2024
Celebrate May the 4th With Special Star Wars' Playlists, Audiobooks, and More
Spotify's Star Wars celebrations are in full Force starting today, and this ...
01/05/2024
Spotify's New Hardcore Gardening Playlist and Brain Dead Collab Will Rattle Greenhouses Everywhere
All around the world, millions of Spotify fans love listening to hardcore punk m...
01/05/2024
THE CALL FOR THE FIFTH PRESIDENTIAL EMPLOYMENT STIMULUS PROGRAMME (PESP5) FOCUSED ON THE AUDIO-VISUAL INDUSTRY, IS OPEN.
THE CALL FOR THE FIFTH PRESIDENTIAL EMPLOYMENT STIMULUS PROGRAMME (PESP5) FOCUSE...
01/05/2024
QTAKE Pioneers Live 3D Stream to Apple Vision Pro
QTAKE, the leading video assist and on-set collaboration software trusted by professional filmmakers worldwide, launched a new cutting-edge feature at NAB 2024....
01/05/2024
LA County Opens Entertainment Business Interruption Fund Grant Program for Small Business, LAEDC Offers Updates
In HPA's ongoing focus on providing input and insight from city and county g...
01/05/2024
Trailblazing AI Storytelling by Empowering Storytellers: Curious Refuge
HPA Newsline had the opportunity to speak with Caleb and Shelby Ward, founders of Curious Refuge. Caleb and Shelby were participants in the 2024 HPA Tech Retrea...
01/05/2024
Supporting Global Air Traffic Modernization through Managed Services Infrastructure
L3Harris works with air navigation service providers who efficiently manage air ...
01/05/2024
Q&A with Scott Alexander, Aerojet Rocketdyne's new Missile Solutions President
Scott Alexander, Missile Solutions President, Aerojet Rocketdyne...
01/05/2024
Comcast: More Than Half of Viewers Frustrated About Finding Content
NEW YORK Just over half of U.S. viewers are frustrated over their ability to be able to find content to watch on TV according to Comcast....
01/05/2024
Bally RSNs Go Dark On Comcast Systems
Bally Sports Regional Networks were taken off Comcast's systems on April 30 when their existing distribution agreement expired and Diamond Sports Group was ...
01/05/2024
NXTGENbps powers Molinare's Notorious DIT
NXTGENbps battery solutions are designed to replace diesel generators and offer silent, emission-free power for various applications in film, TV, outside broadc...
01/05/2024
Elodie Ichter Joins Light Iron as Senior Colorist
Light Iron, the post-production creative-services division of Panavision, is excited to announce that lodie Ichter has joined the company's artist roster a...
01/05/2024
CJP presents live mo-cap demos at MPTS
CJP Broadcast Service Solutions, systems integration, production and content digitisation specialist, will feature live motion capture demonstrations at the 202...
01/05/2024
Media Links Partners with Sunteq for Representation in S...
Media Links, manufacturer and pioneer in Media over IP transport technology, has partnered with Sunteq spol s.r.o., a leading reseller located in Slovakia to st...
01/05/2024
Dot Group Showcases Enhanced Data Management and Sustaina...
Dot Group, a leader in cutting-edge data management solutions and the premier European reseller of critical Broadcast supporting IBM technologies, will demonstr...
01/05/2024
Glensound shows the latest in IP audio at MPTS
Glensound, industry leader in high quality audio systems, is showcasing the latest additions to its extensive portfolio of networked audio products at MPTS. Aud...
01/05/2024
Hitomi Broadcast to demonstrate ST2110 MatchBox at MPTS
Hitomi Broadcast, a leader in audio/video alignment and latency solutions, will be demonstrating advancements in SMPTE ST2110 workflows ensuring broadcasters ha...
01/05/2024
Leading UK vendors join in the CABSAT 30th anniversary ce...
Taking a leading role in the 30th anniversary CABSAT exposition (Dubai World Trade Centre, 21 23 May), the GREAT Britain and Northern Ireland pavilion will fe...
01/05/2024
NXTGENbps Powers Notorious DITs Green Energy Initiative w...
NXTGENbps, a pioneer in green energy solutions, proudly announces its partnership with Notorious DIT, a leading provider of digital imaging technology services ...
01/05/2024
Videosys Broadcast Brings Pan and Tilt To Coverage Of The...
As Cambridge celebrated its double win over Oxford in the 2024 Boat Race, behind the scenes celebrations were also taking place at Videosys Broadcast to mark th...
01/05/2024
Live After 5' summer concert series returns to downtown Raleigh
A popular - and free - summer concert series is coming back to downtown Raleigh! WRAL is proudly partnering with Downtown Raleigh Alliance for its Live After ...
01/05/2024
Cadent Launches Performance TV To Boost Omnichannel Ad Results
Cadent said it launched Performance TV, designed to increase the effectiveness of campaign by combining the reach of traditional linear TV with the targeting of...
01/05/2024
Eric Johnson, KOMO Seattle Anchor, Sets Retirement
Eric Johnson, anchor at KOMO Seattle, will retire as of June 6. Johnson anchors the 5 and 6 p.m. weekday newscasts and writes/produces/hosts Eric's Heroes,...
01/05/2024
T-Mobile Dials Deeper Into Ad Business With Retail Network (NewFronts)
T-Mobile said it is expanding its advertising business, creating an in-store retail media network and adding Plex, the video streaming platform for its footprin...
01/05/2024
Samsung Ads Expands AI Tools To Target Streaming Viewers (NewFronts)
Samsung Ads said it was introducing new opportunities for advertisers to use data about its viewers to target viewers across the full marketing funnel at its Ne...
01/05/2024
Samsung TV Plus Swings for the Fences With Streaming Sports Channels (NewFronts)
Samsung's ad-supported streaming platform Samsung TV Plus is putting more sports in its lineup with free channels about baseball, golf, hockey, auto racing ...
01/05/2024
Dan Rather Documentary Offers Open-Book' Look at Newsman
Rather, a documentary about famed newsman Dan Rather, premieres on Netflix May 1. The film looks at his rise to prominence in TV news, including his work coveri...
01/05/2024
Ken Wayne, KRON San Francisco Anchor, Retires Next Month
Ken Wayne, evening anchor at KRON San Francisco, is retiring after 33 years in Bay Area television. He was born in Marin County, started his journalism career a...
01/05/2024
Jeff Blaszak Promoted To Senior VP at ShowSeeker
ShowSeeker, the company behind the Pilot cloud-based order management system, said it promoted Jeff Blaszak to senior VP of business operations and strategy....
01/05/2024
Great American Media Picks VideoAmp As Ad Currency
Great American Media said it reached an agreement with VideoAmp that will enable clients to use VideoAmp's ad buying measurement and data capabilities when ...
01/05/2024
NXTGENbps powers Molinaire's Notorious DIT
NXTGENbps battery solutions are designed to replace diesel generators and offer silent, emission-free power for various applications in film, TV, outside broadc...
01/05/2024
Amazon CEO: AWS has multi-billion dollar revenue run rate in AI already
Sales rose to $25bn during the first three months of 2024, up 17 per cent year-on-year By Matthew Corrigan Published: May 1, 2024 Sales rose to $25bn duri...
01/05/2024
Roku to Offer NBC Olympics Zone
NEW YORK NBCUniversal and Roku are teaming up to offer the NBC Olympic Zone on Roku, a new destination on the Roku Home Screen Menu. The dedicated channel wil...
01/05/2024
U.K.'s Freely Officially Launches
Freely the new streaming service backed by Britain's leading broadcasters BBC, ITV, Channel 4 and Channel 5 is now available through the next generation of ...
01/05/2024
Study: FAST Channel Growth Accelerates
NEW YORK A new report on free, ad-supported streaming channels indicates that their growth continues to accelerate, with the number of channels hours views and ...
01/05/2024
VuWall Unveils New Capabilities For VuStream 150 Video Encoder
MONTREAL VuWall has enhanced its VuStream 150 H.264 video encoder with new features and capabilities, including support for HDMI signals at resolutions up to 38...
01/05/2024
Samsung TV Plus Announces New High-Profile FAST Channels for Sports
NEW YORK At the IAB NewFronts 2024, Samsung Ads announced a new lineup of premium sports, music, family and entertainment content on its leading FAST service Sa...