Dr. Doyle Hanan Talking Sardine Research on KNX-AM Los Angeles

Dr. Doyle Hanan was interviewed today on KNX-AM 1070 (Los Angeles) about the sardine research project. You can listen here.

Sardine count on Central Coast: Science, business mix

Money on the line for county fishermen in aerial photo project

By MIKE HORNICK, The Californian
October 2, 2010

Moss Landing-based fisherman Andy Russo is a skipper, not a scientist. But he’d swap a line and net for a test tube and white lab coat if it put more sardines in his next catch.

It just might.

Russo is helping scientists with a project that could help his bottom line.

Since August, the California Wetfish Producers Association, a nonprofit industry group, has been flying aerial photography missions on the Pacific coast from Canada to Mexico, capturing images of massive sardine schools below the water’s surface. Russo and other fishermen take occasional hauls from the schools to establish density and weight.

The fishing purse seiner Eileen approaches schools of sardines, which appear as black masses on this enhanced photo.

Read the rest of the story from the Salinas Californian here.

Pilot Jeff Laboff Talking Sardine Research on KTVA Ventura

Pilot Jeff Laboff was recently interviewed on KTVA-AM 1520 (Ventura) about the sardine research project.  You can listen here.

Researchers Encourage Greater Sardine Consumption, But Not Tuna

Thursday, September 23, 2010, 01:30 (GMT + 9)

A team of researchers from Spain and the United States are recommending a reduction in the consumption of tuna and an increase in intake of sardines, as both fish contain roughly the same nutrients. At the same time, scientists stress that consuming 100 grams of tuna will cause nearly 100 times more damage to the environment than 100 grams of sardines.

This was indicated by Enric Sala, a marine ecologist at the Centre d’Estudis Avançats of the Superior Council for Scientific Research (CSIC) in Spain and the National Geographic Society, as well as Daniel Pauly, of the University of British Columbia in the United States

The experts co-directed the investigation, the results of which will be released in October in America, within an edition of the National Geographic magazine and after, in December, it will be released in the Spanish version, reports the newspaper La Vanguardia.

“If we preserve the marine ecosystems so that future generations can continue to eat fish as we do, we should consume less larger species such as tunas,” said Sala.

Read the rest of the story here.

Collaborative Sardine Research Program Concludes Aerial Summer Survey

Local Sardine Fishermen Collaborate with Scientists to Improve Knowledge of Natural Resource

San Pedro, CA, Sept. 20, 2010 – San Pedro fishermen Nick Jurlin on the FV Eileen and Robert Terzoli on the FV Maria T made their final point sets –fishing for science– just hours before the summer sardine research project ended and the fall directed fishery began, at 12:01 AM September 15.

Sponsored by California’s wetfish industry, the summer aerial sardine survey, whose purpose is to provide a minimum estimate of sardine abundance, documented sardine schools from Cape Flattery in Washington State to Southern California, encompassing the area around all of the Channel Islands, where sardines were plentiful.  But the project was unable to conduct point sets in Monterey due to persistent fog and uncooperative fish.

Despite this, the project accomplished its overall goal of conducting three replicates of the aerial survey.

“Three repetitions provide enough information to establish a variance,” said Dr. Doyle Hanan, retired senior marine biologist supervisor for Department of Fish and Game, who directed field operations in California. “This will reduce uncertainty and provide a more accurate estimate of sardine abundance.”

Conducted in cooperation with the Northwest sardine industry, the project covered 66 random transects in all, with 40 in California. Transects were scientifically pre-determined and flown at an altitude of 4,000 feet, extending from the coast out 35 miles, and staged at 15-mile intervals. The high-tech camera systems installed in or attached to the planes photographed the ocean surface with 60 percent overlap, providing seamless coverage. The cameras were equipped with a 24 millimeter lens, covering about a one-mile swath of ocean every 15 miles. The total area of the survey encompassed about 1,000 miles along the west coast.

The survey was conducted as a two-stage project: Stage 1 consisted of aerial surveys to photograph sardine schools visible on the ocean surface along transects.  Stage 2 consisted of ‘point sets’, where fishermen wrap and harvest sardine schools of various sizes, which are weighed and biological samples taken at the dock. The fishing activity also is photo-documented, and point set photos are used to correlate the volume of fish caught to the area measurement of schools identified in the aerial photos to develop a minimum estimate of absolute biomass.

In all, California fishermen harvested a total of about 1,238 of the 2,100 metric tons allocated for the summer research project in California. Twenty-six point sets on schools ranging from five – 75 tons met the stringent requirements for use in the survey.  Fishermen were required to capture 90-100 percent of the school, and the pilot was required to photograph the vessel approach to the targeted school as well as the capture process.

The good news is the research succeeded overall.  However, the forces of nature battled the project every step of the way in California. A perfect storm of problems thwarted the research project in the Monterey area. Although the fog lifted just long enough to accomplish transects, fishermen standing by to conduct point sets were stymied, first by the persistent marine layer, then by fish behavior — as the only sardines spotted in the bay were congregated in the shallows near Santa Cruz in schools too large to conduct valid point sets. The final blow came when the owner of United Flight Services was killed along with his son in a tragic plane crash on Labor Day weekend, grounding the planes the association had chartered before the end of the research period.

The first photo in this series shows FV Eileen approaching a sardine school near Santa Cruz Island. The second photo shows the process of wrapping the school.  Fish were weighed and biological samples were taken at the dock. Fish were processed at Tri-Marine and State Fish Companies at cost, and the proceeds will help to fund the research. Approximately 861 metric tons remaining in the research quota at the end of the project will automatically be added to the fall directed fishing quota.

The research was approved by the Pacific Fishery Management Council, which issued Experimental Fishing Permits to selected vessels to participate in the harvest of sardines outside the open fishing period. The sardine industry initiated the summer sardine research in 2009 and expanded it into Southern California in 2010.

FV Eileen approaching sardine school

FV Eileen wrapping school

Sardine Season Closed, but Fishing for Scientific Research Begins

The California Wetfish Producers Association (CWPA), a non-profit organization representing the state’s Wetfish industry, announced today it will launch its innovative sardine research project for the second year during the current closed fishing season.

This unique project, developed by independent scientific advisors and co-sponsored by the CWPA and the Northwest Sardine Survey LLC (NWSS), will document the volume of sardines extending from Canada to Southern California and provide a coast-wide, minimum estimate of sardine abundance.

“The scientific goal of our groundbreaking project is to photo-document and measure the schools of sardines extending the length of the Pacific coast, and ultimately to understand their migration patterns to ensure sustainability,” said Diane Pleschner-Steele, executive director of CWPA.  “This aerial survey will dramatically increase our knowledge of the Pacific coast sardine population and could also improve future fishing opportunities, which have suffered greatly in recent years.”

Sardine Research Crew

The west coast sardine survey will include select fishermen with special “experimental fishing permits” and spotter planes that will fly and photograph transects at 15-mile intervals from Cape Flattery in Washington to Southern California.  The survey will be conducted in two stages: an aerial survey that encompasses 66 transects and a second

stage where after identifying individual sardine schools of various sizes, pilots will direct fishing vessels to encircle and wrap the schools with purse seine nets.  Pilots have aerial cameras mounted in the planes to document the process.  Each school will be weighed at the dock, biological samples will be taken, and the tonnage will be linked to the photographs.  Scientists will then use mathematical formulas to determine variance between and among schools, and then estimate sardine abundance.

Why the need for the survey?

According to government statistics, sardine stock assessments for the past three years have declined sharply, but many fishermen – especially in the Pacific Northwest – report massive schools of sardines, which they believe aren’t being accurately counted.  And since the estimated abundance of sardines determines the harvest quota set by fishery managers, those numbers must be as scientifically accurate as possible.

“We want to ensure a sustainable fishery, so we’re working with scientists and other organizations to develop more accurate information on sardine resources.  This new information will lead to improved fishery management decisions – good for the resource, and good for the fishermen,” continued Pleschner-Steele.  “It’s no accident that California sardines are considered a sustainable fishery, and have been given a ‘best choice’ green rating on the Monterey Bay Aquarium’s Seafood Watch list.”

“This is cutting edge fishery science and I’m very hopeful that this innovative program will continue into the future and will lead to a new way to assess the abundance of sardines,” said Dr. Doyle Hanan, a retired senior marine biologist supervisor from Department of Fish and Game, who will oversee the California portion of the project.

The fish caught during the research program will be harvested and packed at cost and sold, with proceeds going to offset the cost of the research program.  Results will be compiled and presented at a sardine stock assessment review panel in September and may be used to help determine the estimated abundance of the Pacific sardine resource and harvest guideline for 2011.