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Author: David Shiffman

Imaginary islands, lobster pain, porgs and puffins: Thursday Afternoon Dredging, January 25th, 2018

Posted on January 25, 2018January 25, 2018 By David Shiffman
Uncategorized

Cuttings (short and sweet):  Follow Kelsey James, a graduate student studying the age and growth of batoid fishes, on twitter! Ancient maps show islands that don’t really exist. By Greg Miller, for National Geographic. Global registry of invasive species is a milestone for conservation. By Jonathan Watts, for the Guardian. Want to buy a tshirt, mug, … Read More “Imaginary islands, lobster pain, porgs and puffins: Thursday Afternoon Dredging, January 25th, 2018” »

Sinking squid, salmon-eating seals, and rebounding cod: Thursday Afternoon Dredging, January 18th 2018

Posted on January 18, 2018January 19, 2018 By David Shiffman
Uncategorized

Cuttings (short and sweet): 

  • Follow Dr. Toby Daly-Engel’s shark research lab on twitter!
  • Cod catch at an all-time low, but a rebound could be near. By Patrick Whittle, for the Associated Press.
  • Right whale died from fishing gear. From CBC News

Read More “Sinking squid, salmon-eating seals, and rebounding cod: Thursday Afternoon Dredging, January 18th 2018” »

Dear Shark Man, can rubbing a shark’s snout cause blindness?

Posted on January 17, 2018January 17, 2018 By David Shiffman
Uncategorized

Welcome to  Dear Shark Man, an advice column inspired by a ridiculous e-mail I received. You can send your questions to me via twitter (@WhySharksMatter) or e-mail (WhySharksMatter at gmail).


Dear Shark Man,

Someone I follow on Instagram posted this earlier this week. In this post, she claims that a shark became blind in one eye because SCUBA divers were regularly rubbing it’s snout. Is that a thing? It doesn’t seem like a thing.

Sincerely,
Frustrated in Fort Lauderdale 

Read More “Dear Shark Man, can rubbing a shark’s snout cause blindness?” »

Fat fish, snapping shrimp, and the best books about the ocean: Thursday Afternoon Dredging, January 11, 2018

Posted on January 11, 2018January 10, 2018 By David Shiffman 1 Comment on Fat fish, snapping shrimp, and the best books about the ocean: Thursday Afternoon Dredging, January 11, 2018
Uncategorized

Cuttings (short and sweet): 

  • Follow University of Victoria aquatic ecologist Rana El-Sabaawi on twitter!
  • Can fish get fat? By Abigail Lynch, for the Fisheries Blog.
  • National fish habitat effort focuses on imperiled waters. From the American Fisheries Society Policy News blog.
  • The Ocean Conservancy blog made this great list of books every ocean lover should read in 2018. What are your favorite books about the ocean?

Read More “Fat fish, snapping shrimp, and the best books about the ocean: Thursday Afternoon Dredging, January 11, 2018” »

Dear Shark Man, do sharks fart?

Posted on January 10, 2018January 10, 2018 By David Shiffman
Uncategorized

Welcome to  Dear Shark Man, an advice column inspired by a ridiculous e-mail I received. You can send your questions to me via twitter (@WhySharksMatter) or e-mail (WhySharksMatter at gmail).


Dear Shark Man,

Do sharks fart?

Sincerely,
Restless in Raleigh 

Read More “Dear Shark Man, do sharks fart?” »

OceansOnline is now accepting abstracts! Lead a discussion, teach a skill, and join us!

Posted on January 9, 2018 By David Shiffman
Uncategorized

OceansOnline is now accepting abstracts! OceansOnline is an optional one-day add-on to the International Marine Conservation Congress (IMCC5).This year’s IMCC (including OceansOnline) will take place in Kuching, Malaysia. IMCC5 is June 22-29th, 2018 with OceansOnline on the 2018.

OceansOnline focuses on using online tools for marine science and conservation, including advocacy, public education, research, and collaboration! Anyone is welcome, including scientists, conservation advocates, educators, natural resource managers, journalists, and communicators. OceansOnline content is suitable for beginners or professionals.

Read More “OceansOnline is now accepting abstracts! Lead a discussion, teach a skill, and join us!” »

Join us as we read and discuss a research paper every week! Introducing #SharkScienceMonday

Posted on January 2, 2018 By David Shiffman
Uncategorized

Be sure to follow #SharkScienceMonday on twitter every Monday morning of 2018 (starting January 8th)! Each week, a team of researchers* will be discussing a different scientific paper related to shark and ray biology, behavior, ecology, or management.

Some papers will be new and cutting edge, while others will be classics. They’ll all have one thing in common: a member of the Dulvy lab thought that they had an interesting or important result that significantly contributed to our various areas of expertise. Whenever possible, we will share a link to an open access copy of the paper so everyone can read along.

After we summarize the key takeaways from each paper, we’ll take questions. We’ll also start a discussion about that specific paper and the discipline that it is a part of, including suggesting various experts you can follow on twitter.

We hope that you’ll follow along with us, and that you’ll learn some interesting and important things about elasmobranch research and management!

Read More “Join us as we read and discuss a research paper every week! Introducing #SharkScienceMonday” »

17 amazing and important things about sharks and rays that scientists discovered in 2017

Posted on December 22, 2017December 22, 2017 By David Shiffman 1 Comment on 17 amazing and important things about sharks and rays that scientists discovered in 2017
Science

2017 was… yeah. Of all the years I’ve lived through, 2017 was definitely one of them. Anyway, some interesting things happened in the world of shark research. Here, in no particular order, are 17 amazing and important things that scientists discovered about sharks and rays over the last year.


1 Sharks can switch between sexual and asexual reproduction. We’ve known that several shark species can reproduce asexually for over a decade now, but this year, Dudgeon and friends showed an individual shark switching between sexual and asexual reproduction for the first time!

Noteworthy media coverage: CNN, National Geographic, Gizmodo

Read More “17 amazing and important things about sharks and rays that scientists discovered in 2017” »

Narwhal stress and coral disease: Thursday Afternoon Dredging, December 14th, 2017

Posted on December 14, 2017December 14, 2017 By David Shiffman
Uncategorized

Cuttings (short and sweet): 

  • Watch this amazing scene from Blue Planet 2!
  • Follow Cat Horswill, a PostDoc studying the life history of marine predators, on twitter!
  • In the Arctic, at least, diplomacy works. Bloomberg Editorial.
  • Mysterious “white plague” threatens South Florida coral reefs. By the Associated Press.
  • Climate change and overfishing are pushing seabirds to extinction. By Matthew Taylor, for the Guardian.
  • Not all that glitters is gold, some is plastic. By George Leonard, for the Ocean Conservancy Blog.

Read More “Narwhal stress and coral disease: Thursday Afternoon Dredging, December 14th, 2017” »

Galeophobia, Shark Teeth, and Non-Expert Awareness Campaigns: Dear Shark Man, Volume 5

Posted on December 13, 2017December 14, 2017 By David Shiffman 1 Comment on Galeophobia, Shark Teeth, and Non-Expert Awareness Campaigns: Dear Shark Man, Volume 5
Uncategorized

Welcome to Volume #5 of Dear Shark Man, an advice column inspired by a ridiculous e-mail I received. You can send your questions to me via twitter (@WhySharksMatter) or e-mail (WhySharksMatter at gmail).


Dear Shark Man,

What’s the history of the shark’s cultural image as a sneaky aggressive predator? Do other cultures see it differently?

Sincerely,
Imaginative in Irvine

Dear imaginative,

Much of the large-scale public fear of sharks we see today can be traced to the movie “Jaws” (read my Gizmodo article about this here). Shark conservation biologists actually use the term “the Jaws effect” in peer reviewed scientific literature. Terror of sharks resulting from that movie is fairly common even among people you wouldn’t expect; for example, both of my parents are outdoorsy and have post-graduate degrees, and yet both reported being afraid to go swimming in pools or lakes the summer after Jaws came out. Personally, I don’t think that modern shark b-movies like “SharkNado” or “Two-Headed Shark Attack” inspire the same level of public misunderstanding because they’re obviously silly, but others disagree.

Media coverage of shark bites also plays a major role. If someone gets bitten by a shark anywhere in the world, it’s headline news everywhere even if the bite isn’t severe enough to require more than a band-aid. In Australia, 38% of reported “shark attacks” didn’t even involve any injury at all. This is part of why I, along with many other shark scientists, have called on the popular press to avoid the inflammatory and inaccurate term “shark attack” in favor of a typology of other terms (shark sighting, shark encounter, shark bite, fatal shark bite).

Other cultures absolutely see sharks differently. Where I now live in western Canada, coastal First Nations have stories about a supernatural being called the Dogfish Woman. In some South Pacific cultures, sharks are seen as spirits of ancestors called aumakua (briefly referenced in Moana, see below), and there are even shark gods like Dakuwaqa.

Maui in the form of a shark, from Moana. You’re welcome.

Read More “Galeophobia, Shark Teeth, and Non-Expert Awareness Campaigns: Dear Shark Man, Volume 5” »

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