Welcome   Sponsored By
Subscribe | Register | Advertise | Newsletter | About us | Contact us
   


Propelled by ocean waves, the autonomous surface vehicle called the Wave Glider travels along the ocean surface near Hawai‘i Island. Credit: NOAA Fish

Autonomous Vehicles Powered by Ocean Waves Support NOAA Fisheries Research

Click on the flag for more information about United States UNITED STATES
Monday, December 04, 2023, 06:00 (GMT + 9)

Researchers are using wave-powered autonomous surface vehicles to assess ocean ecosystem health around the Hawaiian Islands.

Scientists from NOAA’s Pacific Islands Fisheries Science Center are using autonomous surface vehicles called Wave Gliders to study ocean health in Hawaiʻi. Wave Gliders are circumnavigating each of the Hawaiian Islands. They’re collecting data on ocean conditions that will be used to help estimate the impacts of climate change on marine ecosystems and fisheries across the state.

“We are primarily interested in measuring chlorophyll, which provides a good estimate of phytoplankton biomass in the ocean,” said Dr. Jamison Gove, an oceanographer with the Pacific Islands Fisheries Science Center and co-lead scientist on the project. “Phytoplankton are the basis for productive and healthy ecosystems, so knowing where and how much phytoplankton there are in the ocean aids in understanding the entire marine food-web,” added Dr. Gove. 

The Building Blocks of Ocean Ecosystems

Phytoplankton are microscopic plants that live near the ocean surface. They are similar to land-based plants: They contain chlorophyll and require sunlight to live and grow. Phytoplankton are the base of the food chain. Their biomass—the total amount of them in a given region of the ocean—dictates fisheries yields and ecosystem productivity across the world.

“Most ocean regions in the tropics have relatively low levels of phytoplankton biomass, but they typically increase as you get closer to islands, like Hawaiʻi,” said Dr. Jonathan Whitney, research ecologist with the Pacific Islands Fisheries Science Center and co-lead of the project. “These phytoplankton hotspots near islands are especially critical for supporting island ecosystems, as they provide more food for small fish and ultimately top predators such as tunas, sharks, and whales.” Scientists are studying phytoplankton distributions and gathering information on key ocean conditions such as temperature, oxygen, and salinity. This information helps them understand the underlying drivers of ecosystem health and estimate how climate change will impact local ecosystems in the coming decades.

“Climate change is increasing ocean temperatures and impacting the distribution and production of phytoplankton,” said Dr. Gove. “But how large-scale changes will influence marine ecosystems here in Hawaiʻi is not well understood. This uncertainty is challenging for resource management and for local communities, especially where fisheries provide important food-resources and support economic livelihoods."

This illustration highlights the importance of phytoplankton near tropical islands to overall ecosystem health. Key physical factors like upwelling, currents, and land-based inputs provide more nutrients that fuel increased phytoplankton biomass. With more food at the base of the food chain, there is an overall increase in ocean ecosystem productivity including increased abundance of top predators such as tunas and whales. Studying the factors that increase phytoplankton biomass near islands is key for understanding marine food webs and how climate change will impact island-associated fisheries, marine mammal habitat, and total ecosystem productivity. Credit: NOAA Fisheries

Powered by the Waves

Our scientists have contracted Liquid Robotics to use Wave Gliders, autonomous surface vehicles that harness the upward and downward motion of ocean waves. The wave-powered vehicles are continuously propelled forward while taking measurements on ocean conditions. For this study, three Wave Gliders will be traveling in tandem at 1.5, 3, and 6 kilometers from shore. They will measure temperature, salinity, phytoplankton, and more to a depth of 150 meters. The Wave Gliders will begin their mission on the Big Island and then head northwest, circumnavigating each of the Main Hawaiian Islands. The journey will take 5–6 weeks to complete. Then, researchers will analyze the data to identify the locations with the greatest phytoplankton biomass. They will determine the drivers of these biological hotspots and their contribution to ocean ecosystem function and health.

NOAA scientist Jamison Gove free dives on a Wave Glider off Hawaiʻi Island. The Wave Glider consists of a surface float, a subsurface glider with six wings, and a sub-mounted winch that vertically profiles the water column down to 150 meters. Credit: Liquid Robotics

A Collaborative Effort

The statewide ocean survey is part of the Hawaiʻi Integrated Ecosystem Assessment. It will be coupled with NOAA’s ongoing monitoring of whales and dolphins during the Hawaiian Islands Cetacean and Ecosystem Assessment Survey.

“The autonomous Wave Glider survey is supporting a larger, multi-agency collaborative effort to assess the abundance and habitat of whales and dolphins across Hawai‘i,” said Dr. Erin Oleson, marine ecologist at the Pacific Islands Fisheries Science Center and lead scientist of the survey. This effort occurs just once every 6–8 years and assesses the status and trends in cetacean populations in Hawaiʻi. “The Wave Gliders will provide really important data on ocean conditions and habitat near each of the islands, which are utilized by numerous species of whales and dolphins.” 

This project is in collaboration with researchers from the University of Hawaiʻi at Mānoa Department of Oceanography and supported by NOAA’s Uncrewed Systems Operations Center, which funded innovative partnerships in an effort to collect data for NOAA missions.

Source: NOAA Fisheries

[email protected]
www.seafood.media


 Print


Click to know how to advertise in FIS
MORE NEWS
Norway
Feb 21, 07:30 (GMT + 9):
Salmon aquaculture: No lice treatment needed with Natilus
European Union
Feb 21, 07:00 (GMT + 9):
The EU invests €2,2 million (USD 2.38M) to develop the fishing vessel of the future
Russian Federation
Feb 21, 07:00 (GMT + 9):
Fishing Catches in the Okhotsk and Bering Seas
Worldwide
Feb 21, 07:00 (GMT + 9):
High fishmeal prices will be difficult to reduce in 2024
Faroe Islands
Feb 21, 07:00 (GMT + 9):
Bakkafrost Sees Mixed Regional Results in Q4 2023
Norway
Feb 21, 07:00 (GMT + 9):
MMC First Process with extensive delivery to Hima Seafood in Rjukan
Philippines
Feb 21, 06:50 (GMT + 9):
President Marcos: Case over cyanide fishing possible if ‘there’s enough ground’
Norway
Feb 21, 01:00 (GMT + 9):
Strong quarter to end another record year for Mowi
Spain
Feb 20, 23:00 (GMT + 9):
IN BRIEF - The fishing sector requests a meeting with Minister Planas and will join the demonstration planned in Madrid on February 26
Falkland Islands
Feb 20, 10:00 (GMT + 9):
IN BRIEF - Falkland Islands dispute is causing fishing ‘free-for-all’ in nearby Blue Hole
Spain
Feb 20, 07:00 (GMT + 9):
BM Supermercados Endorses Best Aquaculture Practices Program
Denmark
Feb 20, 07:00 (GMT + 9):
Danish Ocean Cluster open for business
Antarctica
Feb 20, 07:00 (GMT + 9):
Krill Fishing Boom May Threaten Antarctic Predators and Climate Crisis Mediation
Norway
Feb 20, 07:00 (GMT + 9):
The Norwegian Pelagic Fishing Course in Week 7
Worldwide
Feb 20, 07:00 (GMT + 9):
Yellowfin Tuna Prices Expected to Rise Amid Slow Fishing



Lenguaje
FEATURED EVENTS
  
TOP STORIES
BM Supermercados Endorses Best Aquaculture Practices Program
Spain Spanish retailer BM Supermercados is endorsing the Best Aquaculture Practices (BAP) certification program, the latest step in its commitment to sourcing responsible seafood for its stores. &nbs...
Shrimp Season in Jeopardy as Tensions Persist
Argentina Despite the efforts of the Government of Chubut to bring the parties in conflict closer together and promote dialogue, the season continues to struggle. The STIA and SUPA delay the negotiations and an...
Ocean Network Express Unveils Asia Pacific 1 (AP1)
Worldwide Ocean Network Express (ONE) announces the launch of the Asia Pacific 1 (AP1) service, a new route connecting Asia and the U.S. West Coast. Due to sustained growth of USA import volumes from Asia to...
63% of the catches of the Spanish tuna fleet already have MSC certification
Spain A further 17% are under evaluation and the fleet expects to obtain the blue seal before the end of the year 63% of the Spanish tuna purse seine fleet's tropical tuna catches already have the Marine S...
 

Maruha Nichiro Corporation
Nichirei Corporation - Headquarters
Pesquera El Golfo S.A.
Ventisqueros - Productos del Mar Ventisqueros S.A
Wärtsilä Corporation - Wartsila Group Headquarters
ITOCHU Corporation - Headquarters
BAADER - Nordischer Maschinenbau Rud. Baader GmbH+Co.KG (Head Office)
Inmarsat plc - Global Headquarters
Marks & Spencer
Tesco PLC (Supermarket) - Headquarters
Sea Harvest Corporation (PTY) Ltd. - Group Headquarters
I&J - Irvin & Johnson Holding Company (Pty) Ltd.
AquaChile S.A. - Group Headquarters
Pesquera San Jose S.A.
Nutreco N.V. - Head Office
CNFC China National Fisheries Corporation - Group Headquarters
W. van der Zwan & Zn. B.V.
SMMI - Sunderland Marine Mutual Insurance Co., Ltd. - Headquarters
Icicle Seafoods, Inc
Starkist Seafood Co. - Headquearters
Trident Seafoods Corp.
American Seafoods Group LLC - Head Office
Marel - Group Headquarters
SalMar ASA - Group Headquarters
Sajo Industries Co., Ltd
Hansung Enterprise Co.,Ltd.
BIM - Irish Sea Fisheries Board (An Bord Iascaigh Mhara)
CEFAS - Centre for Environment, Fisheries & Aquaculture Science
COPEINCA ASA - Corporacion Pesquera Inca S.A.C.
Chun Cheng Fishery Enterprise Pte Ltd.
VASEP - Vietnam Association of Seafood Exporters & Producers
Gomes da Costa
Furuno Electric Co., Ltd. (Headquarters)
NISSUI - Nippon Suisan Kaisha, Ltd. - Group Headquarters
FAO - Food and Agriculture Organization - Fisheries and Aquaculture Department (Headquarter)
Hagoromo Foods Co., Ltd.
Koden Electronics Co., Ltd. (Headquarters)
A.P. Møller - Maersk A/S - Headquarters
BVQI - Bureau Veritas Quality International (Head Office)
UPS - United Parcel Service, Inc. - Headquarters
Brim ehf (formerly HB Grandi Ltd) - Headquarters
Hamburg Süd Group - (Headquearters)
Armadora Pereira S.A. - Grupo Pereira Headquarters
Costa Meeresspezialitäten GmbH & Co. KG
NOAA - National Oceanic and Atmospheric Administration (Headquarters)
Mowi ASA (formerly Marine Harvest ASA) - Headquarters
Marubeni Europe Plc -UK-
Findus Ltd
Icom Inc. (Headquarter)
WWF Centroamerica
Oceana Group Limited
The David and Lucile Packard Foundation
Ajinomoto Co., Inc. - Headquarters
Friosur S.A. - Headquarters
Cargill, Incorporated - Global Headquarters
Benihana Inc.
Leardini Pescados Ltda
CJ Corporation  - Group Headquarters
Greenpeace International - The Netherlands | Headquarters
David Suzuki Foundation
Fisheries and Oceans Canada -Communications Branch-
Mitsui & Co.,Ltd - Headquarters
NOREBO Group (former Ocean Trawlers Group)
Natori Co., Ltd.
Carrefour Supermarket - Headquarters
FedEx Corporation - Headquarters
Cooke Inc. - Group Headquarters
AKBM - Aker BioMarine ASA
Seafood Choices Alliance -Headquarter-
Austevoll Seafood ASA
Walmart | Wal-Mart Stores, Inc. (Supermarket) - Headquarters
New Japan Radio Co.Ltd (JRC) -Head Office-
Gulfstream JSC
Marine Stewardship Council - MSC Worldwide Headquarters
Royal Dutch Shell plc (Headquarter)
Genki Sushi Co.,Ltd -Headquarter-
Iceland Pelagic ehf
AXA Assistance Argentina S.A.
Caterpillar Inc. - Headquarters
Tiger Brands Limited
SeaChoice
National Geographic Society
AmazonFresh, LLC - AmazonFresh

Copyright 1995 - 2024 Seafood Media Group Ltd.| All Rights Reserved.   DISCLAIMER