{"id":13108,"date":"2016-09-16T23:08:16","date_gmt":"2016-09-16T23:08:16","guid":{"rendered":"http:\/\/legacyaoos2.wpengine.com\/?p=13108"},"modified":"2021-11-16T10:38:23","modified_gmt":"2021-11-16T19:38:23","slug":"ketchikan-becomes-second-alaska-community-to-monitor-ocean-acidification-at-shellfish-hatchery","status":"publish","type":"post","link":"https:\/\/aoan.aoos.org\/ketchikan-becomes-second-alaska-community-to-monitor-ocean-acidification-at-shellfish-hatchery\/","title":{"rendered":"Ketchikan becomes second Alaska community to monitor ocean acidification at a shellfish hatchery"},"content":{"rendered":"

On Aug 29, the OceansAlaska shellfish hatchery in Ketchikan became the second hatchery in the state to monitor for ocean acidification. \u00a0The instrument, known as a “Burke-O-Lator” after its developer Burke Hales of Oregon State University, tracks aragonite saturation<\/em>, or the suitability of ocean water to form calcium carbonates that shellfish use to form their shells. \u00a0Shellfish have been identified as a species particularly vulnerable to ocean acidification because corrosive water can impede the shell building process and cause energetic stress for the organism. \u00a0While Alaska’s shellfish hatcheries are not yet showing\u00a0the effects of\u00a0ocean acidification, hatcheries in the\u00a0Pacific Northwest first began to notice\u00a0shellfish larvae dying about a decade go. \u00a0Between 2005 and 2009, shellfish seed production plummeted by 80%, resulting in a well publicized effort to better understand the cause and implications, and monitor the waters around hatcheries (Seattle Times series<\/a>).<\/p>\n

The Burke-O-Lator in Ketchikan is the second instrument of its kind to be installed in Alaska, joining the Alutiiq Pride Shellfish Hatchery in Seward, which started in 2014. \u00a0Both systems are run by Wiley Evans of the Hakai Institute, in partnership with the hatcheries and with financial support from the Alaska Ocean Observing System (AOOS), the Northwest Associations of Networked Ocean Observing Systems (NANOOS), and the UAF Ocean Acidification Research Center.<\/p>\n

\"Oceans

OceansAlaska is the only site in the state that produces oyster seeds and makes them available to other growers.<\/p><\/div>\n

“The Burke-o-Lator is a mechanical multi-tasker\u2014a masterful combination of technologies,” said Evans. “The system measures the partial pressure of carbon dioxide (pCO2<\/sub>) and the dissolved inorganic carbon content, and can simultaneously analyze these variables in both a\u00a0constantly-flowing seawater stream\u00a0and from bottled samples. \u00a0This means it can monitor CO2\u00a0<\/sub>chemistry near-continuously at the hatchery while also processing water collected from other locations in the region.”<\/p>\n

Seven other Burke-O-Lator systems dot the Pacific Northwest. Data from these systems can be found in the Pacific Region Ocean Acidification Data Portal<\/a>\u00a0(direct station\u00a0link)<\/a>, which brings together data streams from ocean acidification networks across the region, or in the AOOS data portal<\/a> (click on the dot over Saxman). Another Alaska Burke-O-Lator will be installed in Sitka next spring, in partnership with the Sitka Tribe.<\/p>\n

For more information on ocean acidification in Alaska, visit the Alaska Ocean Acidification Network<\/a>.<\/p>\n

\"ocean-acidification-network-header\"<\/p>\n","protected":false},"excerpt":{"rendered":"

The OceansAlaska site is part of a suite of monitoring systems co-located with hatcheries across the Pacific Northwest, strengthening the partnership between OA research and the shellfish industry.<\/p>\n","protected":false},"author":12,"featured_media":13094,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[9],"tags":[],"yoast_head":"\nKetchikan becomes second Alaska community to monitor ocean acidification at a shellfish hatchery - Alaska Ocean Acidification Network<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/aoan.aoos.org\/ketchikan-becomes-second-alaska-community-to-monitor-ocean-acidification-at-shellfish-hatchery\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ketchikan becomes second Alaska community to monitor ocean acidification at a shellfish hatchery - 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