Author Archive for Jason

Carnival of the Blue #17

Carnival of the Blue #17 [300x300, 24K]Welcome to the 17th Carnival of the Blue. Getting a little later start to the Carnival this month so it can coincide with the 2nd annual International Cephalopod Awareness Day.

The idea of a blog carnival is to highlight the best blog posts on a specific theme during a given period of time. Someone collects all those posts and turns them into one uber-posting called a “carnival.” Thus the Blue Carnival is a community of ocean-related blogging and bloggers representing the other 70% of our planet. It was kicked off on World Ocean Day 2007 by Mark Powell (blogfish).

I am pleased and honored to host the Carnival of the Blue here at the Cephalopodcast Web Site this month. Any errors or omissions in this entry are my own. For corrections or additions, please contact me at pulpodcast [at] gmail . com.

It would not be a Carnival without exotic animals, so we start with a menagerie drifting in with this month’s collection:

Acclimatization

You may not have noticed, but it is political season in the United States. However, if you have been involved in this debate you may have heard John McCain repeatedly criticize the Federal government for spending millions of tax dollars on grizzly bear research. Now, I find some irony in a man who identifies so strongly with Teddy Roosevelt (eponym of the teddy bear) having a beef (or pork) with bear research. But rather than bore you with my op ed, I’ll let you consider an entry from James Hrynyshyn over at the Island of Doubt. He covered the issues of researching a bear of a different color, Ursus maritimus, the polar bear. Climate change denialists seem to believe polar bears can easily become solar bears. James is not so sure.

Another critter that can be found chilling up north and that warms my heart is the hook-nosed sea pig. Never heard of it? Head over to GrrlScientist to see one.

Around this time of year we usually start seeing snowbirds around Florida. But Corey Finger up in New York got a visitor from the other direction. Over at 10K Birds, he takes us along on the chase as he spots and photographs a Magnificent Frigatebird (Fregata magnificens) soaring around his area. Even in southwest Florida I rarely see these tropical seabirds so I still have to wonder what made this one wander so far out of his way. Guess it was not just the weather we were sending up north last month.

Regular readers of the Carnival know what a curious crew is at the helm of Deep Sea News. But this month Peter Etnoyer comes dangerously close to confessing vertebratophilia while working on the recent Deepwater Coral Expedition with NOAA. It seems he has gone crazy for catsharks (Scyliorhinus retifer). I usually think of the Pacific when anyone mentions these critters, but Peter says there are at least six species in the Gulf of Mexico. And he has made some egg-citing discoveries about them while collecting deep sea coral samples.

Fail Whales

When I first saw this picture of two dead whales, it looked weird to me, as if they were laid out on ice at a seafood counter. Turns out that’s not far off, as they were the targets of a Japanese research hunt and also the subject of a post by Mark Powell at blogfish. It seems Japanese scientist required a “representative” sample of at least 4500 specimens to figure out that whales are not as meaty as they once were. Sadly, it does not seem to be enough evidence to realize the paradox of killing hungry whales to feed an already well-fed population that is increasingly uninterested in the product.

The obvious relation between climate change and skinny whales has another, more oblique consequence that sounds dire for cetaceans. With warming water temperatures comes a well-established trend of more acidic levels in the world’s oceans. James Hrynyshyn has another entry on reasearch from the Geophysical Research Letters that shows the relationship between decreasing pH and the way that sound waves travel in the oceans. If you are a whale, you might want to listen to the results. And ocean acidification has another obvious and insidious effect. It eats coral. Or rather, it dissolves the calcium carbonate shells, tests and calyces of invertebrates like coral. It makes it harder for them to form (foram) their homes. And if you are a big animal that eats lots of little, hard-shelled animals, you might really be in double-jeopardy.

Finest of the Spineless

If you’ve had enough of vertebrates, then head over to The Oyster Garter, where Miriam offers relationship advice for the lonely invertebrate while reminding us that the only good kind of plastic found in the ocean is phenotypical. Blogging about recent tunicate research by A. J. Crean and D. J. Marshall, it seems there is an answer to the age-old question of how much squirt does a sea squirt squirt when a sea squirt does squirt squirt.

As I mentioned earlier, it is political season here in America. You may have also noticed that it is the International Cephalopod Appreciation Day? These two forces combined to give us a re-contribution by Mark Hall from the Daily Kos’ Marine Life Series. While Mark is on a well-earned election hiatus, he offers this re-entry on the eyes of the octopus.

Does this make an octopus’ eyes actually superior to ours? No. It can get away with this setup because the rods and cones face toward the light instead of away from the light like ours. Which means to get to these cells of ours, light has to pass through much more nerve and blood tissue as it is reflected off the back of the eye, which is what helps to increase the acuity of our sight. Although an octopus has very good eyesight at close range, it is very nearsighted and cannot see a thing past about eight feet.

If Mark’s absence has you jonesing for some sea life oddities be sure to check out Deep Sea News’ 27 Best Deep-Sea Species and Oceana’s Freaky Fish. They are both running a series of ooky-spooky critters during the next month.

Conservation Consternations

Rick MacPherson is constantly trying to disabuse us of the notion that his jetset lifestyle of international coral conservation is one filled with Mai Tais and lovely sunsets. Indeed, sometimes it seems to be as much about constipation as it does conservation. And this month he also reminds us that the most fragile thing in conservation is not always the natural systems themselves, but the hopes, dreams and trust of the local people charged with protecting them. So what happens when that trust is broken? Sadly, he recently had the occasion to find out.

As further evidence that Rick’s trips to the tropics are not always pleasant, he recently had to deal with the morality of moray mortality while on a trip to Bonaire. He also managed to make one of the most descriptive and distinktive tropes of this month’s carnival:

During a morning dive, a dive master found a recently deceased Spotted moray resting near the reef drop-off. With good intention, he brought it back to the dive boat in hopes of delivering the eel to the marine park authority for study. But with no means of temporary preservation in this tropical heat, a dead eel specimen rapidly degrades from fresh cadaver to a stinky wind-sock of liquefied goo (emphasis mine, JR). We looked for something to place the specimen in, but the only available storage was a cooler where cold drinks were stored. Not knowing what possible agent is at work in the moray deaths, it would be ill-advised to store a potentially infectious corpse where human food is also stored.

Chewswise.com is a delightfully double-entendric blog about sustainable food chains. This month Clare Leschin-Hoar rips a hole in a chef’s toque for knowingly serving bluefin tuna. Then she shows how to search restaurant menus on the Web to avoid eating endangered species. Personally, I can’t wait until this function is iPhone app-ified and tied into Google’s map API (he said, deliberately glancing towards Monterey). While I wait for that dreamy interactive mobile version, Monterey Bay Aquarium, the Blue Ocean Institute and the Environmental Defense Fund are working now on a new consumer guide for choosing sustainable sushi. It should be out on October 22 and you can read more about it at SeaNotes.

Over at the Intersection, Sheril Kirshenbaum notes that you can also choose to chew wisely by participating in a novel seafood program called Catch a Piece of Maine. By adopting your own lobster trap (and all the lobsters it catches) you can seize your seafood for an entire year and support a unique community-based fishery model that directly supports lobstermen. I wonder if this notion will be a success and spread.

Last month was the International Coastal Cleanup. Wallace J. Nichols reports that up to 90% of trash picked up is disposable, single-use plastic and gives some suggestions on ways of keeping plastic out of our oceans and out of the stomachs of sea creatures.

As individuals, we can easily reuse glass or metal water bottles, bring our own cups, carry a bamboo spork and stash reusable bags here and there for those times we need to carry things.  In our communities we can champion efforts to ban wasteful non-biodegradable single-use plastic and foam containers.  And we can support legislation that will help keep our ocean, beaches and river clean for future generations.

Finally, if you are unfamiliar with how big a problem plastic pollution is becoming, head over to Shifting Baselines. Randy Olson has a new video comparing the travels of two sailors rafting across the Pacific, their voyages set fifty years apart.

Dive in Again Next Month for Carnival of the Blue #18

Carnival of the Blue #18 will be hosted at the new digs of the Deep Sea News. Send your submissions to Mark Powell (blogfishx (at) gmail (dot) com). Remember to include: post author, URL and a brief description.

The Carnival of the Blue Web badge is available under a Creative Commons license in a variety of sizes and a couple of colors.
 

2nd Annual (Unofficial) International Cephalopod Appreciation and Awareness Day, 10/8/2008

International Cephalopod Appreciation Day 2008

UPDATE: Thanks to everyone for pointing out I am an idiot and mixed up the date on the graphic. Fixed now more-or-less. Pardon while I wipe this embarrassment off my face. New graphics featured here.

cephalopodcast.com/octopusday

October 8, 2008 marks the 2nd Annual (Unofficial*) International Cephalopod Appreciation and Awareness Day (UICAAD), also referred to by some as Squid Day or Day of the Octopus.

  • There are over 700 species of cephalopods, which include animals like the nautilus, cuttlefish, octopus, and squid.
  • The original idea of celebrating cephalopod diversity started on The Octopus and News Magazine Web site (tonmo.com) back in 2007.
  • What better day to celebrate Octopus and Squid then on OCTOber 8, the eighth day of the 10th month of the year? Octopus have eight arms and squid and cuttlefish have eight arms and two tentacles, for a total of 10 appendages.

Top 10 Things You Can Do on Cephalopod Appreciation Day

  1. Make a Cephalopod
  2. Wear a Cephalopod
  3. Taste a Cephalopod
  4. Watch a Cephalopod
  5. Get a Cephalopod Tattoo
  6. Find a Fossil Cephalopod
  7. Engage in Proper Cephalopod Pluralization
  8. Read about cephalopods
  9. Write, draw, sing about Cephalopods
  10. Spread the Word about Cephalopod Appreciation Day!
    If you write a post about cephalopods today, let me know! Just like last year, I’ll be collecting links from around the Interweb at cephalopodcast.com/octopusday

THANKS! I ♥♥♥ Cephalopods

*It is still unofficial because no official governing body has (yet) made it a declaration.

WordBarff

Upgrading the Cephaloblog to the latest Wordpress version. But it is being especially barfy this time. This should be unenjoyable.

White Shark Video Webcast, Friday at 3:00 p.m. (ET)

The Monterey Bay Aquarium will host a live video webcast at 3:00 p.m. (ET) on Friday, 12 September 2008. The webcast will be hosted by Ken Peterson and feature curator of field operations John O’Sullivan and white shark researcher Chris Perle.

The aquarium recently captured, put on display and released their fourth white shark (Carcharodon carcharias). They are the only aquarium that has long-term success keeping these animals in captivity.

The webcast will include video of the sharks capture, feeding and ultimate release. The experts will also talk about shark research and conservation.

Monterey Bay Aquarium is asking folks to submit questions for the webcast, but asks that people check their computer system prior to showtime to ensure compatibility with their player. Check the link below for more details.

UPDATE: The information page said I needed Windows Media Player. That’s too bad. I guess the Monterey Bay Aquarium hates Macs. :P

2nd Annual International Rock Flipping Day

IRFD web badge [200x200, 45K]Tomorrow is International Rock Flipping Day. Read more about this year’s festivities here.


Carnival of the Blue #16: The Saipan Blog

Carnival Of The Blue logo, a blue sphere half-filled with water. [100x100, 7K]The latest Carnival of the Blue is up at The Saipan Blog, a site by Angelo Villagomez and based in the Commonwealth of the Northern Mariana Islands. Saipan is the largest island and capital of the CNMI.


Next month’s festivities will be hosted here at the Cephalopodcast blog on October 6. If I might make a suggestion for topics, please note that October 10, 2008 is the Unofficial International Cephalopod Appreciation Day.

Life Photo Meme: Smart

Underwater shot of two groovy brain corals [240x240, 40K]
Belize Brain Corals (Diploria sp. and Colpophyllia sp.) taken circa January 2006.

The Life Photo Meme theme this week is Smart.

This is a photo of some brain coral that I took on a dive in Belize, circa January 2006. There are two genra here. In the front is a groove-brained coral (Diploria sp.) and in the back is a boulder brain coral (Colpophyllia sp.). I never could get these two straight during my QUantitative Ecological Survey Techniques course.

They may not be especially intelligent, but I think they look pretty sharp.


 

Imitation Cephallic Extremities for Your Home

Squid Replicants [via TONMO]
A couple of years ago we need a replica squid beak for a project at work. We ended up going with a custom fabricator, but I always figured there would be a market for a mass produced version. It seems this notion also occurred to the folks at Skulls Unlimited, since they now offer a casting of a giant squid squid beak (Architeuthis sp.) for US$95. According to Clem’s review on TONMO, the folks at SU will soon follow up with a colossal squid (Mesonychoteuthis sp.) replica too.

Cephalopod Residents
Also of note on TONMO is a new book by Nancy King and Colin Dunlop called Cephalopods: Octopuses and Cuttlefish for the Home Aquarium (US$40). Keeping these critters in captivity is a challenge even for the most veteran aquarist. This book looks to be a good resource on the husbandry of cephalopods.

Pseudo Pristis pectinata
If a squid beak replica the size of your hand is not impressive enough, you can instead get a replica sawfish rostrum from vivre.com for US$250. The real rostra were a staple marine life curio for many years. But the smalltooth sawfish (Pristis pectinata) is the first marine fish to be listed on the U.S. Endangered Species list and possessing any part of an actual sawfish without a permit is now illegal. So satisfy your kitsch with a resin rostrum instead.

Cephalopod Evacuation Route

Blue road signed with a stylized octopus and the words CEPHALOPOD ROUTE and a downward pointing arrow [284x521, 44K]
Cephalopod Evacuation Route, © Jason Robertshaw


Another Illustrator exercise inspired by this sign. Because cephalopods need to know where to go when it rains too.
 

Hurry Pain Fay

Adorable dachshund in a yellow rain coat [300x225, 28K]
TS Fay Live Coverage with Tupper Puppers

We are hunkering down at Cephalopodcast HQ as tropical storm Fay makes her way northward. As you can see, our crack reporting team is standing by in the sideyard to bring you the latest updates as the eyewall approaches. So far, no reports of structural damage, but there is an good chance for sporadic power outages. Stayed tuned for updates.

Life Photo Meme: Free-ranging PharaohFracking Ants

Pharaoh ants feeding in a circle around a yellow drop of Terro® liquid insecticide [240x240, 20K]

PharaohAnts feeding in a circle around a yellow drop of Terro® liquid insecticide

The Life Photo Meme theme this week is Free.

My subject are these nuisance little crazy ants that infest many homes (and hospitals) around the world. We’ve had them wandering freely around our house for a season now, despite our best efforts at non-chemical control. We’ve resorted to using a commercial insecticide called Terro®. The ants seem to like it. My identification of these insects is tentative, based on macrographic observations and behavior.


 

Wildlife of Florida’s Ancient Islands

These scrub-oak domes provide patches of shade. This one seems to be mimicking the cloud behind it.  [240x175, 16K]

Flickr photo: DSCN0505 by j.s. clark
Creative Commons: Attribution-Noncommercial-Share Alike 2.0 Generic

Ancient Climate
Even the smallest changes in climate can have a dramatic impact on Florida. Over 600,000 years ago, sea level rise changed the state from a peninsula to an archipelago. Since then, the ocean has receded and risen to different levels. But the dunes of those ancient islands now form a sandy ridge that runs through the center of the state. The geological history of these ridges have created unique scrubby habitats that are home to many endemic species, including the famous Florida Scrub Jay (Aphelocoma coerulescens). Unfortunately, less than 20% of the original uplands remains intact. The rest has been converted for agriculture (citrus), residential and commercial uses.

Modern Milieu
Next week is the Florida’s Wildlife: On the Frontline of Climate Change conference. The conference is about about the looming changes facing all the terrestrial and aquatic ecosystems of Florida. Policy makers will be discussing the impact of these changes and how to link any initiatives with conservation goals.

Studying the Ancient Islands Today
The Archbold Biological Station has a free lesson plan on Florida scrub habitat and wildlife. It is weird to stand in the midst of these hot, arid areas and think that they were once beachfront property.

Coda: While putting this post together, I came across the sad news that Dr. Dave Maehr had passed away. Dr. Maehr was a well-known (and sometimes controversial) wildlife biologist. Back in the early 90s I got to tag along on a trip while his team tranquilized and studied black bears on the Weeki Wachee Preserve. Most Floridians go there whole life without ever seeing a native black bear. Because of Dave’s work, I got that chance. It was the high point of my internship at the Water Management District. Thanks.

Goblin Shark Bites Scuba Diver (Mitsukurina owstoni)

cephalopodcast_goblinsharkjaws_sourceunknown.jpg

Frame from a YouTube video showing a goblin shark coaxed into biting the arm of a diver in a wetsuit. Ownership pending.

[via ectomo.com]

If you missed it, there has been some recent news about the incredible bite force of sharks, suggesting that the extinct Megatooth shark had chompers more powerful than a Tyrannosaurus rex. It is easy to see how the giant, cleaver teeth of this prehistoric fish could deliver such powerful chops.

But compare this Megatooth tooth to the more needle point teeth of the goblin shark featured in the video below. It shows a goblin shark (Mitsukurina owstoni) coaxedprovoked into biting the wetsuited arm of a scuba diver. I have not heard about this footage before, and I do not understand the (presumably) Japanese dialog. If anyone can translate or offer additional details, I would be obliged. I am especially curious to know what depth the divers were at.

In addition to the teeth, the protrusible jaws of the goblin shark are also remarkable. I’ve seen pictures of dead goblins that show the palatoquadrate sticking out, but seeing them in action is jaw-inspiring. Around the gills you can also see the flaccid skin that is typical of deep water animals like the goblin shark.

If you are interested in learning more about the biting power of sharks and other fish, check out the Web site of Dr. Motta’s lab at the University of South Florida. He and his students study the jaw kinesthetics of elasmobranchs, in collaboration with the researchers at Mote Marine Laboratory (where I work).

Bloated

green, cartoon sea cucumber [500x165, 68K]
Bloated, © Jason Robertshaw


My original working files for Pucker and Bloat are stuck on a dead hard drive. So, I am recreating the characters. This is Bloat, the sea cucumber. That’s not a curly tail coming out of his butt either.
 

Cephalovlog #5: 25 Signals in the Rain


Cephalovlog #5: 25 Signals in the Rain from Jason Robertshaw on Vimeo.

As Rick mentioned, I picked up a Flip Mino digital camera. This is the first project I’ve finished using this handy little cam. Edited in iMovie HD and scored in Garageband using pre-installed loops.
 

Life Photo Meme: Leafhopper

Small green leafhopper clinging to the propagule of a red mangrove [240x240, 20K]
Leafhopper (Family Cicadellidae)

The Life Photo Meme theme this week is Honor an Invertebrate.

So continuing with my mangrove journey from last week, the next creature I came upon was a leafhopper. It was clinging to a mangrove propagule and obligingly held still while I used my little iPhone hack to take a close-up snap.