{"id":1527,"date":"2019-02-10T11:48:33","date_gmt":"2019-02-10T19:48:33","guid":{"rendered":"http:\/\/blogs.oregonstate.edu\/inspiration\/?p=1527"},"modified":"2019-02-10T11:48:33","modified_gmt":"2019-02-10T19:48:33","slug":"saving-the-blue-whales-of-the-south-taranaki-bight","status":"publish","type":"post","link":"https:\/\/blogs.oregonstate.edu\/inspiration\/2019\/02\/10\/saving-the-blue-whales-of-the-south-taranaki-bight\/","title":{"rendered":"Saving the blue whales of the South Taranaki Bight"},"content":{"rendered":"
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A blue whale engulfs a patch of krill. Drone piloted by Todd Chandler.<\/p><\/div>\n

Until a worldwide ban took effect in 1986<\/a>, whaling and the production whale products, were leading to a decline in whale populations. Despite a greater global awareness about the importance of protecting our oceans, conflicts still exist between conservation efforts and industry.<\/p>\n

This week\u2019s guest, Dawn Barlow, studies the anthropogenic effects on blue whales (Balaenoptera musculus<\/em>) \u2013 the largest known animal to have ever existed! Dawn is a first year PhD student in the Department of Fisheries and Wildlife\u2019s Geospatial Ecology of Marine Megafauna (GEMM) Lab<\/a>with Dr. Leigh Torres \u2013 the same lab where she completed her Master\u2019s degree in 2018.<\/p>\n

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A blue whale mother and calf surface near Cape Farewell, New Zealand. Photo by Dawn Barlow.<\/p><\/div>\n

Discovery of new whale population\u2026 and problem<\/strong><\/p>\n

Through her Master\u2019s work, Dawn and her colleagues were able to document a genetically distinct population of about 700 blue whales<\/a>in the South Taranaki Bight (STB) \u2013 a region located between the north and south islands of New Zealand. The STB is not only an important region for the blue whales; however, it is also heavily used by industry, with active oil and gas extraction, seismic surveying, shipping traffic, and proposed seafloor mining. The need for a marine sanctuary in this area is eminent for the longevity of this whale population, but a compromise must be reached with the government and stakeholders. Furthermore, defining a sanctuary area in a dynamic system is not as simple as drawing a line in the sand.<\/p>\n

Data collection Down Under<\/strong><\/p>\n

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A pair of blue whales surface in New Zealand’s South Taranaki Bight region. Photo by Leigh Torres.<\/p><\/div>\n

For her PhD research, Dawn will be continuing work with this same population of whales to get a better understanding of the ecological factors that influence where the blue whales are distributed. So far, three data collection trips have been conducted to gather some of this information. These ship-based trips have collected huge amounts of data using a myriad of equipment and techniques.<\/p>\n

Echosounder data is collected using a transducer, which hangs off the boat and sends two pings per second producing measurements from the bounce back that can be used to map out krill aggregations \u2013 the blue whale\u2019s primary food source. Conductivity, Temperature, Depth (CTD) casts are used to collect temperature and salinity pressure measurements to determine depth. Wind measurements are also recorded, as this generates upwelling. Photography and videography from the ship deck and via drones are used for identification of individuals whales with their skin providing the equivalent uniqueness as a human fingerprint. Satellite imaging is also used to record sea temperatures and chlorophyll levels. Lastly \u2013 and my personal favorite \u2013 darts shot from a smaller inflatable boat at close-range are used to collect skin and blubber samples for downstream genetic, stable isotope, and hormone analysis. Opportunistic sampling of fecal matter (i.e. if a whale poops) can also be used for genetic and hormone analysis.<\/p>\n

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Approaching a blue whale for photo-identification and biopsy sampling. Photo by Kristin Hodge.<\/p><\/div>\n

Dawn participated in the 2017 field season and also went in July 2018 to disseminate findings to stakeholders. Now she is tasked with sifting through the data to correlate the oceanography with acoustic data, satellite imagery and presence of krill. Preliminary results suggest that the blue whales seem to appear where krill aggregate. Through habitat modeling on an ecosystem scale, Dawn hopes to be able to predict on a seasonal scale where the krill \u2013 and therefore, blue whales \u2013 will be, allowing for informed, science-based conservation and management decisions to be made.<\/p>\n

Finding a passion for conservation biology <\/strong><\/p>\n

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Dawn Barlow on the flying bridge of the research vessel during fieldwork in New Zealand. Photo by Kristin Hodge.<\/p><\/div>\n

Growing up in Northern California near the ocean has always inspired Dawn to pursue a career in marine science. Dawn received dual bachelor\u2019s degrees in Organismal Biology and Environmental Policy at Pitzer College in Claremont, California, where she recognized the need to build a bridge between biology and its translation to conservation policy. Knowing she wanted to get hands-on experience in marine mammal research, Dawn sought out and pursued opportunities through the MARMAM listserv<\/a>, which landed her two undergraduate internships: one studying bottlenose dolphins in Australia and another in Alaska with humpback whales<\/a>. These internships allowed Dawn to realize her desire to continue research through a graduate program at Oregon State University, where she has already completed her Master\u2019s degree in Wildlife Science. After completing her PhD, Dawn plans to continue conducting conservation research.<\/p>\n

Join us on Sunday, February 10 at 7 PM on KBVR Corvallis 88.7 FM or\u00a0stream live<\/a><\/u>\u00a0to learn more about Dawn\u2019s adventures Down Under, journey to graduate school, and answer to the age-old question: what does whale poop look like?<\/p>\n","protected":false},"excerpt":{"rendered":"

Until a worldwide ban took effect in 1986, whaling and the production whale products, were leading to a decline in whale populations. Despite a greater global awareness about the importance of protecting our oceans, conflicts still exist between conservation efforts and industry. This week\u2019s guest, Dawn Barlow, studies the anthropogenic effects on blue whales (Balaenoptera […]<\/p>\n","protected":false},"author":8220,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[109824,2310],"tags":[],"class_list":["post-1527","post","type-post","status-publish","format-standard","hentry","category-college-of-agricultural-sciences","category-fisheries-and-wildlife"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/blogs.oregonstate.edu\/inspiration\/wp-json\/wp\/v2\/posts\/1527","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.oregonstate.edu\/inspiration\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.oregonstate.edu\/inspiration\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.oregonstate.edu\/inspiration\/wp-json\/wp\/v2\/users\/8220"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.oregonstate.edu\/inspiration\/wp-json\/wp\/v2\/comments?post=1527"}],"version-history":[{"count":3,"href":"https:\/\/blogs.oregonstate.edu\/inspiration\/wp-json\/wp\/v2\/posts\/1527\/revisions"}],"predecessor-version":[{"id":1536,"href":"https:\/\/blogs.oregonstate.edu\/inspiration\/wp-json\/wp\/v2\/posts\/1527\/revisions\/1536"}],"wp:attachment":[{"href":"https:\/\/blogs.oregonstate.edu\/inspiration\/wp-json\/wp\/v2\/media?parent=1527"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.oregonstate.edu\/inspiration\/wp-json\/wp\/v2\/categories?post=1527"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.oregonstate.edu\/inspiration\/wp-json\/wp\/v2\/tags?post=1527"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}