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Author: David Shiffman

#PlanetEarthChat: Watch Planet Earth 2 and tweet along with us!

Posted on December 7, 2017December 7, 2017 By David Shiffman
Uncategorized

Join a team of conservation biologists and wildlife experts for a live science communication event!  We are going watch the award-winning BBC documentary series Planet Earth 2 together, tweeting expert commentary and reactions throughout using #PlanetEarthChat. Anyone is free to join in the discussion, and is free to ask questions of our expert team.

We’ll be starting our episodes all at exactly the same time, so anyone who wants to participate can be sure to be synched with us. I’ll make a Storify of all the tweets transcript at the end.

Read More “#PlanetEarthChat: Watch Planet Earth 2 and tweet along with us!” »

Pacifist fighting fish and entangled right whales: Thursday Afternoon Dredging, December 4th 2017

Posted on December 7, 2017December 7, 2017 By David Shiffman
Uncategorized

Cuttings (short and sweet): 

  • Watch this manta ray in footage from Blue Planet 2!

    From Blue Planet 2
  • Follow Dr. Douglas Rasher, a marine ecologist, on twitter! (And read my interview with him for Gizmodo’s Earther here)
  • Sea lions have unique whiskers that help them catch even the fastest fish. By Robyn Grant, for the Conversation.

Read More “Pacifist fighting fish and entangled right whales: Thursday Afternoon Dredging, December 4th 2017” »

Vegetarian sharks, non-lethal research, and friggin’ laser beams: Dear Shark Man, Volume 4

Posted on December 6, 2017December 6, 2017 By David Shiffman 1 Comment on Vegetarian sharks, non-lethal research, and friggin’ laser beams: Dear Shark Man, Volume 4
Uncategorized

Welcome to Volume #4 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,

I feel more and more guilty about my own meat consumption. I wonder, are there any vegan sharks?

Sincerely,
Eager in England

Dear Eager,

There are more than 500 species of sharks, and they range widely in shape, size, habitat, and behavior. However, every single species eats animals. Many eat fish, some eat invertebrates, and few eat mammals and birds, but they all eat animals. Even the filter-feeders like whale sharks are eating zooplankton, which are (tiny) animals.

Bonnethead sharks have been documented with seagrass in their stomachs, which is likely the result of accidentally ingesting seagrass while eating crabs that live among the grass. (Sometimes I fail to pick all the lettuce off of my turkey sandwich and eat it accidentally, that doesn’t mean I’m seeking out lettuce or that lettuce is a major component of my diet). Recent work by Samantha Leigh has shown that bonnetheads may be able to partially digest this seagrass, which is pretty neat. However, that does not make them vegans, or even vegetarians.

Incidentally, a member of an influential marine conservation family whose name rhymes with Mousteau once claimed that there are more than 1,000 species of sharks and most of them are vegetarian, which is…extremely not correct.

Read More “Vegetarian sharks, non-lethal research, and friggin’ laser beams: Dear Shark Man, Volume 4” »

Parasitic mussel babies and big whale brains: Thursday Afternoon Dredging, November 30th, 2017

Posted on November 30, 2017November 30, 2017 By David Shiffman
Uncategorized

Cuttings (short and sweet): 

  • Watch this incredible footage from Blue Planet 2!
  • Follow Annmarie Fearing, a graduate student researching sawfish conservation, on twitter!
  • Lobster found with Pepsi logo fuels fears over ocean litter. By Ashifa Kassam, for the Guardian.

Read More “Parasitic mussel babies and big whale brains: Thursday Afternoon Dredging, November 30th, 2017” »

#GivingTuesday, freshwater sharks, and hammerhead schooling: Dear Shark Man, Volume 3

Posted on November 28, 2017November 28, 2017 By David Shiffman
Uncategorized

Welcome to volume #3 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,

Since it’s #GivingTuesday, what are some shark conservation charities you recommend?

Sincerely,
Generous in Georgia

Read More “#GivingTuesday, freshwater sharks, and hammerhead schooling: Dear Shark Man, Volume 3” »

Upside-down fish, shellfish poaching, and the value of whale poop: Thursday Afternoon Dredging: November 16, 2017

Posted on November 16, 2017 By David Shiffman
Uncategorized

Cuttings (short and sweet): 

  • Watch this tiger shark hunting a hammerhead shark, in amazing National Geographic footage!

    Footage by National Geographic
  • Follow Sarah Popov, a marine spatial ecologist interested in fisheries and conservation, on twitter!
  • Whales in polluted water develop a new feeding strategy. By Jason Goldman, for Scientific American.

Read More “Upside-down fish, shellfish poaching, and the value of whale poop: Thursday Afternoon Dredging: November 16, 2017” »

Shark species names and hurricane sharks: Dear Shark Man, Volume 2

Posted on November 15, 2017 By David Shiffman
Uncategorized

Welcome to volume #2 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,

I know how you feel about sandbar sharks (even though I’m still #teamgoblinshark), but can we agree that Ninja Lanternshark is the best common name for a shark? Also, if you had an opportunity to name a shark, what would you name it? I’d name mine Storm Shark, not because of the meteorological event, but because Storm is Aquaman’s mighty seahorse steed.

Sincerely,
La Requin in Lake Buena Vista

Dear La Requin,

Ninja Lanternshark is a pretty sweet common name. My friend Vicky Vasquez was involved in the discovery and description of that species, which also has a cool scientific name (benchleyi, named after Jaws author and eventual shark conservationist Peter Benchley). If you haven’t read the great Hakai magazine story about this species, you should.

As an ecologist and conservation biologist, I am unlikely to get the opportunity to name a shark, but that doesn’t mean I haven’t thought about this. I’d love to see shark species named after influential shark conservation advocates, particularly those who engage in science-based conservation advocacy. If a new species of cownose ray is discovered, I hope that folks will consider naming it after Shark Advocates International President and frequent Southern Fried Science guest blogger Sonja Fordham, for example. And I certainly wouldn’t turn down a species named after me, if any taxonomists are reading this, though there are certainly plenty of more deserving people.

Incidentally, I have a colleague who studies marine mammal parasites. I’ve told her that I will donate to a conservation charity or her choice if a parasite that significantly annoys (but does not kill) dolphins is named after Southern Fried Science.

Read More “Shark species names and hurricane sharks: Dear Shark Man, Volume 2” »

Ocean Noise, Parasite Extinction, and Jellyfish Blooms: Thursday Afternoon Dredging: November 9th, 2017

Posted on November 9, 2017 By David Shiffman
Uncategorized

Cuttings (short and sweet): 

  • Watch this manta ray (or should I say mobula ray) at the Georgia Aquarium

    Video by Georgia Aquarium
  • Follow Serena Wong, a graduate student at SFU studying shark and ray respiratory physiology, on twitter!
  • 9 reasons you can’t help but love manatees. By Katie Hogge, for the Ocean Conservancy blog

 

Read More “Ocean Noise, Parasite Extinction, and Jellyfish Blooms: Thursday Afternoon Dredging: November 9th, 2017” »

Shark protections, shark careers, and sharky grammar: Dear Shark Man, Volume 1

Posted on November 8, 2017November 8, 2017 By David Shiffman
Uncategorized

Welcome to volume #1 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,

Have you seen this New Scientist article (“Sharks now protected no matter whose waters they swim in?)
Is this good news? It seems too good to be true.

Sincerely,
Skeptical in Seattle

Dear Skeptical,

You are correct to be, um, skeptical. At best, this article is an oversimplification of a very complex problem. Many shark species migrate through the territorial waters of multiple nations, which complicates any conservation and management plans for these species. The Convention on Migratory Species, which is what the New Scientist article is about, is an attempt to help. However, a CMS listing is only the first step, and it does not inherently require any legal protections. Thus far, CMS listings for sharks have not resulted in any concrete legal protections for these species. The World Wildlife Fund’s shark expert, Ian Campbell, has written a great summary of why this CMS news is not the be-all end-all solution that many seem to believe, check it out here:

Read More “Shark protections, shark careers, and sharky grammar: Dear Shark Man, Volume 1” »

A scientifically accurate list of the most endangered sharks in the world

Posted on November 2, 2017November 2, 2017 By David Shiffman 5 Comments on A scientifically accurate list of the most endangered sharks in the world
Conservation, Science

One of the most common questions I get during my “ask me anything” sessions on twitter is “which species of sharks are the most endangered?” Whenever I can’t completely answer a question in a single tweet, I like to link to more information from a reliable source.

However, I’ve struggled to easily answer this question with a link, because much of the information out there about this particular question is incomplete, misleading, or just wrong.  Several online lists of the most endangered species of sharks* don’t actually include the most endangered species of sharks. Many of these lists could be re-titled as “the conservation status of some species of sharks I’ve heard of and could easily find pictures of” or “some random information I heard out of context about shark conservation.” Since there isn’t an easily accessible source of accurate information about this important shark science and conservation topic, I’ll make one myself. ( I should note here that I am referring only to true sharks, not to other chondrichthyans, even though other chondrichthyans in many cases face similar or worse threats. )

Read More “A scientifically accurate list of the most endangered sharks in the world” »

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