Meet the New Dogfish, Same as the Old Dogfish

Recently Will over at Bomai Cruz posed the question, “what determines a species?”  This is a relevant question for spiny dogfish research, since much of what is currently known about Squalus acanthias comes from work on the very well-studied north Pacific population.  However, dogfish in…

Fleeing Prey Gives Away Predators

I’ve been remiss in reading Greg Laden’s blog, though it’s familiar to plenty of other science bloggers.  However, after reading a couple recent posts of his that showed up on Research Blogging (which I think anyone with an interest in science should sign up for)…

Carnival of the Blue

I ended up getting just enough reliable internet today to find out that my post on skates migrating into Georges Bank from Canada has shown up on the Carnival of the Blue over at Arthropoda.  Go check it out and obviously check out all the…

The Jaws of Death: How Spiny Dogfish Destroy Their Prey

One of the paradoxes of public opinion on dogfish is that they’re simultaneously considered a swimming wall of teeth annihilating everything in their path and wussy, poor excuses for sharks.  I’ve heard a lot of hearsay about the “weak bite” and “useless raspy teeth” of…

Elasmobranch “Outbreak” Caused by Migration?

One of the most contentious topics on modern fisheries management and elasmobranch ecology has been the supposed “explosion” of skates and dogfish in Georges Bank.  The fact that this coincided with the crash in commercially important groundfish populations (cod, haddock, flounder, and other delicious bottom-dwellers)…

Marine Rewilding?

It’s amazing what you’ll catch in the letters to the editor sometimes.  In the latest issue of Fisheries Magazine is a classic back-and-forth editorial origination from an article by researcher John. C. Briggs.  At first my interest was piqued simply by the fact that there…