Wednesday, July 14, 2010

Selling Out

So you'll recall from the earlier post today that I've entered Ya Like Dags? into the next phase of its development.  I'd like to announce that I am now part of the nascent Southern Fried Science network.  I'll be keeping the blogspot address active just in case (mainly so people can see this post and then update their links accordingly) but I'm looking forward to the greater design flexibility, readership, and support involved in being part of a larger network (though not too large).  So yes, you can think of it as selling out, but selling out to an indie label.

The blog can now be seen at www.yalikedags.southernfriedscience.com.  The layout is very basic right now but I'll be tweaking it as I go.  Thanks for your continued support and readership, and don't be shy in the comments.

AES Conclusions and An Announcement

Below the jump you'll find a talk that I somehow managed to forget to discuss here on the blog, some parting remarks about the conference, and an announcement.


Sunday, July 11, 2010

AES Day 3.5

Day 3 of the AES conference was the big feeding symposium, and there was plenty to sink my teeth into (all puns always intended).  Today is mostly made up of the stress symposium, which is a little technical for my tastes but still interesting and an important topic.  As you saw yesterday, I decided to choose my social life over blogging, something the Hot Girlfriend and my friends who came into town to visit probably appreciate.  On to the good parts...


Saturday, July 10, 2010

AES Day 3 coming up

I had a good run so far, but thanks to social obligations I'll have to save the Day 3 update on the AES conference for later.  Stay tuned...

Friday, July 9, 2010

AES Day 2 - Day of the Dogfish

Today was the day when two of us from the Rulifson lab gave our presentations (Jen gave a talk, I stood by my poster and chatted with passers-by).  Perhaps by design it was also the day that the dogfish talks came out of the woodwork.  Lots of interesting new data was presented that will hopefully eventually give us a clue as to what's happening with this species.  I also washed all the dogfish talks down with some highly entertaining talks about tiger sharks, of both the standard and sand variety.


Thursday, July 8, 2010

AES Day 1

The first official day of talks wrapped up today, followed by a pretty sweet social at the Roger Williams Park Zoo.  I'll run down some of the more interesting stuff I heard about today in relatively short form below.


Monday, July 5, 2010

Dogfish on Tour: The Providence Prelude

Your humble narrator is currently in the Great State of Rhode Island after a detour to the Jersey Shore to visit the Hot Girlfriend.  I'll be spending time with some friends until Wednesday, when  the Joint Meeting of Ichthyologists and Herpetologists gets underway.  I'll be attempting to provide regular updates from the conference (including my own poster presentation) and may try my hand at some live blogging (if I have the gumption to drag my laptop to a lot of talks).  I'm looking forward to meeting my fellow shark people and reconnecting with some old friends and advisors.  If you're attending the conference, I'll see you there.

Tuesday, June 29, 2010

The Ya Like Dags? Social Guide to Rhode Island

Two posts in two days?  It's like I'm a real blogger all the sudden.

The occasion for this post is that next week I'll be participating in the Joint Meeting of Ichthyologists and Herpetologists.  I'll be presenting a poster on my work as well as seeing an almost impossible number of shark talks thanks to the fact that the American Elasmobranch Society is rolling deep at this conference.  However, being at a conference alone is not what this post is about.  This post is about Rhode Island.

This particular conference is taking place in Providence, Rhode Island and is hosted by my undergrad alma mater.  Aside from being able to reconnect with some of my old professors and peers as well as being able to spend some time in a state I still very much consider home, this also presents me with an opportunity to show some of my North Carolinian colleagues (and any other shark people out there who want to hang out) just how awesome my little state can be.  Below the jump are some of my favorite places in the State of Rhode Island and Providence Plantations.  I know that some of my old Rhody friends know of places that I've overlooked, so feel free to add any other points of interest in the comments.


Monday, June 28, 2010

First New England Great White of 2010

I'm headed back up to my motherland of Rhode Island next week for the Joint Meeting of Icthyologists and Herpetologists (mainly because of the heavy AES presence there), and it seems the great whites are going to be there to greet me.  The first New England great white of the summer has surfaced off of Boston, where it was caught, tagged, and released by a group of Gloucester fishermen.  The Dorsal Fin has a looped video of the shark taken by the fishermen.  Maybe I should bring my snorkeling gear with me...

Thursday, June 24, 2010

Feeding Habits Analysis: Detective Work Part 2

In my previous post on the detective work necessary for any good feeding habits analysis, I lamented the apparent lack of a "one-stop shop" for looking up fish scales (at least as far as I've been able to find).  In response, I've been saving scales from fishes I've been albe to ID down to species level.  The idea is to match up these "type" scales with the scales often found with the unclassifiable chunks of fish that often show up in spiny dogfish stomach contents.  Below the jump you'll find the first three species in Chuck's Field Guide to Spiny Dogfish Bait.


Sunday, June 20, 2010

Marine Rewilding?

ResearchBlogging.org

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 was something ocean-related (since the start of my subscription Fisheries has been utterly dominated by freshwater articles), but reading the debate motivated me to go back and track down the original article.  What I found was one of the more unusual takes I've seen on the management of Atlantic fisheries, and an interesting parallel with a highly controversial conservation strategy.

Monday, June 14, 2010

Angry Post

You may have noticed that I haven't been saying much about the white elephant (or big black blob) in the ocean.  This is for two reasons: first, I try to stick to my main subjects here, which are dogfish, shark research, and fisheries management.  I like to throw in some oddball internet stuff every so often but in general I try to write what I know.  Secondly, the BP disaster is being covered much more thoroughly in other forums.  Deep Sea News has been following the story from the beginning, and Southern Fried Science has a handy list of other places you can check to follow the progress of the oil as it destroys the Gulf of Mexico and potentially the entire Atlantic coast. 

Documents released today (or at least reported on today) reveal that BP knowingly and willingly cut corners in order to save time and money.  The company ignored advice from Halliburton that could have made the well much safer, and even turned a deaf ear to the Deepwater Horizon's own chief engineer, who called the situation a "nightmare well." 

I guess we can stop the finger pointing now (though BP CEO Tony Hayward's appearance before Congress on Thursday should be a hoot).  Yet again we see the end result of trusting profit-motivated entities to regulate themselves.  Will this time finally be the time we learn that this is a bad idea?

Tuesday, June 8, 2010

Feeding Habits Analysis: Detective Work

As anyone who's ever done a diet study will tell you, you end up getting a lot of unverifiable gunk in your study animal's stomach contents.  Sometimes enough of the consistency remains that you can tell generally what this chunk of meat used to be.  For example, it's pretty easy to tell fish meat from anything else thanks to identifying features like white meat and the pattern of musculature.  However, getting beyond this stage takes a little more work and creativity.


Sunday, June 6, 2010

New England Great Whites Return

Here's an incredibly timely news item, given that my last post was a little Carcharodon carcharias humor and I'm watching "Expedition Great White" as I write this.  Last summer five great whites were tagged with satellite tracking tags as they hung out right off the beaches of Cape Cod.  Data coming in from the tags now suggests that at least one of the tagged sharks is on its way back for the summer.  There is anecdotal evidence that great white numbers are increasing off of New England, most likely due to the Cape's burgeoning harbor seal population.

This is great news for the marine ecosystem of New England, and ironically, for some surfers I've spoken to from the area.  I've heard stories of bull harbor seals harassing surfers right out of the water, so some among the Cape Cod surfing community are actually welcoming the return of the sharks.  Hopefully the chambers of commerce in the beachside towns of Cape Cod will be as reasonable.

This is a story I've been following as an amateur for a while.  Even though the main focus of this blog is sharks of a considerably smaller size, as both a salty New Englander and a big fan of sharks in general I get pretty enthusiastic about the return of great whites to the Northeast. 

Friday, June 4, 2010

New House, New Pet?

I'll be moving into a new apartment next month, and I've been wondering whether I want to get a pet to take advantage of the extra space.  Thanks to Rob for bringing this to my attention and helping me with the decision.

Wednesday, June 2, 2010

Woo! 50th post!

6 months, 50 posts.  Not a bad pace so far.  As the world watches the tragedy unfolding in the Gulf of Mexico and I prepare for another boat trip out to Cape Lookout (now that we've found the holdover population, the next step is to measure and tag some of them) let's take a moment to enjoy some video of the mighty spiny dogfish.  The first video shows the graceful movement and skittish behavior shown by spiny dogfish interacting with divers.  The second is the dogfish as consummate mesopredator, savaging a baited camera and driving off cod as they attempt to get a piece of the action.  Thanks for reading so far, and stick around for more small shark action. 



Tuesday, June 1, 2010

The Great Memorial Day Dogfish Hunt

Earlier I posted on a population of spiny dogfish that seem to be hanging out south of Cape Hatteras long after they are supposed to have migrated north.  As of this past weekend stories of spiny dogfish stealing bait and chasing fish continued from the waters between Morehead City and Cape Lookout.  On Monday a team comprised of Dr. Rulifson, Jen, Dan Z, and myself set out to the shallow, sandy waters on the inside of the Cape Lookout hook in search of these hungry stragglers.  Read on to see how the mission went...


Tuesday, May 25, 2010

DarWIN, not DarLOSE!

I've always thought the comedic talents of both Dana Carvey and Charles Darwin were highly underrated.

Sunday, May 23, 2010

Thoughts on North Carolina's Gill Net Issues

It's been a hot topic in this state for a while that gill nets are both important to the commercial fishing industry and highly controversial.  I personally know a couple people involved in this debate, and have been following it with some interest, though I haven't had a chance to really post anything on it until now.  Which is timely, because apparently management decisions have been made. 


Thursday, May 20, 2010

Feeding Habits Analysis: Pizza Toppings

In my last post about the things I'm finding in shark puke, I discussed the presence of menhaden in the diet of spiny dogfish.  These fat, oil-rich fish make quite a nutritious meal, and it usually only takes a handful of them (or chunks of one of them) to fill an average dogfish stomach. 

However, there are times when the optimum meal just isn't available and you've got to go with quantity over quality.  The title of this post is a big hint as to what I'm talking about here.