As fishermen in the past discovered, the ocean is not without its limits. In “Yesterday’s Ocean,” Shargel shows that after short, intense periods of exploitation, stocks of otters, abalone and sardines became much harder to find. As one species was depleted, another was targeted.
This post was written by Ocean Conservancy intern Sage Melcer.
Need an excuse to beat the summer heat at the movies this month? Check out sci-fi thriller “Pacific Rim.” The summer blockbuster, directed by Guillermo Del Toro (director of “Pan’s Labyrinth”), marries science fiction with marine science for cinematic gold.
“Pacific Rim” takes place in 2020 when alien-like monsters, called the Kaiju, start emerging from an undersea volcano, destroying countless cities and millions of people. In order to defeat the Kaiju, global forces come together to create Jaegers, giant robots that are controlled by two neurologically synced pilots who take part in mind-blowing hand-to-hand combat with the invaders.
Seasoned pilot Raleigh (Charlie Hunnam) is pulled back into the Jaeger program years after the loss of his co-pilot and brother during a Kaiju battle. He teams up with rookie Mako Mori (Rinko Kikuchi) to command the Jaeger Gypsy Danger, a nuclear-powered fighting legend. However Kaiju are becoming larger, stronger and smarter, and their occurrences are more frequent.
A scientist studying the Kaiju, Dr. Newton Geiszler (Charlie Day), discovers a way to connect with a Kaiju brain, stumbling upon a plan of attack that is more horrible than the human race could have possibly imagined.
On a recent day that would otherwise have been perfect for fishing, a group of Maine fishermen and lobstermen opted to remain indoors. They gathered to discuss an issue serious enough to tie up the boats: the future of fishing in the face of climate change.
Increasing carbon pollution and its impacts on the ocean is something that may seem distant and far away for many. But fishermen are seeing changes now and living new realities today. Members of Maine’s fishing communities met recently to discuss these changes during a workshop hosted by the Island Institute, a Maine group dedicated to sustaining local coastal communities.
Shifting fish populations due to warming waters are bringing new species to Maine and pushing others out. Lobsters are more plentiful than ever, a would-be boon except for an excess of “shedders” (also thought to be because of a warming ocean) that sell for a much lower rate than the usual hard-shelled individuals.
Green crabs, an invasive species, have moved north as waters have warmed, and are eating their way through the local shoreline, leading local clammer Walt Coffin to conclude, “We’ll be out of business in two years.”
A scientist measures a juvenile tiger shark during a population survey. Photo: Claudia Friess / Ocean Conservancy
More than 70 species of shark occur in the Gulf of Mexico and along the U.S. Atlantic coast. Of those, we catch over a dozen large and small coastal species during the bottom longline population survey I’m participating in with the National Oceanic and Atmospheric Administration.
Here are five of the species we commonly spot:
Atlantic Sharpnose Shark This small shark is the most commonly caught species during our survey because it is ubiquitous in this region. In the right depths, it is not uncommon for us to catch around 50 of these small sharks per set of 100 hooks.
Population status: Due to their abundance in the western North Atlantic, their population status is not considered to be of great concern. Apart from humans, Atlantic sharpnose sharks also have other, larger sharks to fear as predators.
Hammerhead shark caught for a population survey. Photo: Claudia Friess / Ocean Conservancy
While most people out on the water are trying to avoid sharks, I’m on a boat that’s looking for them. We’re trying to find out which shark species are doing well and which ones are in trouble.
The answer: it’s complicated. But one important piece of evidence is the information collected on scientific surveys of population abundance, like the one I’m on right now.
It’s my third year as a volunteer on the science crew with the National Oceanic and Atmospheric Administration. I am currently on the NOAA ship OREGON II, a 170-foot research vessel with its home port in Pascagoula, Miss.
This is the first leg of the annual shark and red snapper bottom longline survey. The survey is conducted in the U.S. Gulf of Mexico from South Texas to the Florida Keys and along the East Coast up to Cape Hatteras, N.C. That’s a total of four legs lasting two weeks each.
“SHARK!” Does the word conjure up images of a fin slicing toward you in the open ocean or on the edge of your seat completely absorbed in one of the year’s best television specials?
In preparation for Shark Week, which starts this Sunday, we’ve put together a roundup of some of our best shark blog posts from the past year:
What’s Your Shark IQ? How much do you think you know about sharks? Before taking a deep dive into the world of these complex creatures, test your basic knowledge with our short quiz. Do you know which shark swims the fastest?
This post was written by Ocean Conservancy intern Jaclyn Yeary.
After Hurricane Sandy hit the East Coast last October, I read an op-ed by Paul Greenberg in the New York Times titled “An Oyster in the Storm” that inspired me. In his piece, he described how oysters can be used to protect the shorelines of our coastal cities while improving the water quality of America’s largest metropolis. The solution to two major issues seemed suddenly so obvious. I needed to learn more.
So I partnered with a friend to produce a short documentary titled “Harbor Heroes” about the importance of oysters to New York City. We interviewed an amazing group of individuals including students from the aquaculture program at the New York Harbor School, Philippe Cousteau and Paul Greenberg himself.
How do oysters help water quality?
The idea behind restoring New York’s oysters is this: oysters grow on top of one another, forming nurseries for baby fish and creating a base structure for reefs. Reefs act as natural surge protectors and reduce the size of waves during big storms. Like other mollusks, oysters are filter-feeders, which means they clean the water column as they eat. If the water quality improves enough, sea grass could grow and create a root network that would prevent the erosion of the shoreline.