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Archive | Blog

EvolutionOfDolphinsAndWhales

The origins of marine mammals

The origins of marine mammals Although all marine mammals evolved from land mammals, it may surprise some that each group of marine mammals has its own unique ancestry. There are three groups of marine mammals: the cetaceans (whales, dolphins and porpoises), the pinnipeds (fur seals, sea lions, walruses and seals) and the sirenians (dugongs and […]

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New Chapter- Orca Foundation quarterly report 2018

A NEW CHAPTER The start of 2018 brought a brand new team to the ORCA Foundation Volunteer Program. With 3 new staff members (two experienced marine biologists and a conservationist) the program now hosts a wide range of marine related research, conservation and education activities. January was just crazy! The new team had to move […]

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ORCA Foundation -Volunteer Programme 2019

ORCA FOUNDATION – VOLUNTEER PROGRAMME – 2019 PROGRAMME OVERVIEW The ORCA Foundation, a conservation node of Ocean Blue Adventures, officially opened its doors in 2001 and was designed to create awareness about marine conservation issues facing Plettenberg Bay. Today, the foundation combines research, conservation and education into its comprehensive volunteer programme. The foundation strongly depends […]

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SRW-Pigment-blog

Southern right whale pigmentation patterns

Southern right whale pigmentation patterns Southern right whales are usually mostly black in colour and were often referred to as “black whales” by open-boat whalers. Most individuals also have a white blaze on their bellies, which can vary in size from a small spot to a large irregularly-shaped marking that may extend up the side […]

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Cetacean Sleep

Cetacean sleep Cetaceans, or whales and dolphins, have a pretty unique way of getting some shuteye. These marine mammals actually only rest one half of their brain at a time when sleeping, in what is known as unihemispheric slow-wave sleep. While one hemisphere of the brain rests, the other remains alert. The hemispheres are alternated […]

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15.1 A microplastic found in a hake

July research blog

July research blog Exciting news for the elasmobranch egg case project! Oceans Research (http://www.oceans-research.com/) in Mossel Bay will be collaborating with us on this project, and will be starting monthly egg case collections at a site in Mossel Bay. This is a wonderful opportunity to partner with a fantastic research organization and investigate what egg […]

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Demersal Shark Longlining

Demersal Shark Longlining Over the last month or so, some of Plettenberg Bay’s inhabitants may have noticed the occasional presence of a somewhat strange looking vessel within and around the bay. This vessel, it turns out, belongs to South Africa’s demersal shark longlining fishery. This fishery is relatively small, with only six permit-holders off the […]

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14.2 Cutting out the stomach of a hake

June research blog

June research blog The elasmobranch egg case project continues business as usual, and while we continue to progress smoothly there are no great project updates! June has been a bird ringing deficient month unfortunately, with only one ringing session, but what a morning it was! While all birds are interesting, exciting, and special, as a […]

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