Can we eat sea cucumbers?

There’s a funny animal that lives on the floor of the ocean and likes to eat what most of us would only wipe off the bottom of our shoes. It’s name is the sea cucumber. The sea cucumber is an echinoderm and is closely related to sea stars, sea urchins, and sand dollars.To protect itself the sea cucumber will expel its intestines outside of its body to distract predators. The sea cucumber is a prized Japanese culinary tradition used often in soups and stews. Fisheries along the Atlantic coast have been popping up in the past twenty years to sell sea cucumbers.

Check out this video from National Geographic on how they (literally) fight with guts for glory:

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10 facts about manatees

  1. Manatees are marine mammals and breathe air through their nostrils.
  2. Manatees belong to an order of marine mammals called the Sirenians. Dugongs are the other member of this family. Stellar sea cows were also a member of this family, but they were hunted to extinction within 27 years of their discovery.
  3. Manatees can weigh up to 2,000 pounds.
  4. Manatees closest modern relative is the elephant. Evidence of this relationship is easy to spot – both animals have three to four fingernails.
  5. Manatees are typically pretty slow, but, can swim up to 20 mph.
  6. There are four species of manatees: the West Indian Manatee, the Florida Manatee (technically a subspecies of the West Indian species), the Amazonian Manatee and the West African Manatee.
  7. Manatees are credited for being the basis for the mermaid legend.
  8. Manatees are herbivores.
  9. Manatees can live up to 60 years old.
  10. Manatees have no natural predators, but, they are peril. Find out more about their plight at Save the Manatees.

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Whale songs

There are two types of whales: baleen and toothed. Baleen whales are the magical creatures that create “songs” under water. The series of high pitched squeals, shrieks, groan and moans can last anywhere up to twenty minutes and be as low as 20 Hz and high as 10,000 Hz.

Male whales (bulls) tend to use song as a means of finding a mate (a female whale is called a cow). But, theses sounds have been recorded and analyzed and findings see that the songs can also be a means to warn other whales of nearby predators or publicize food sources.

Scripps Institute sent out an interesting news release about a study explaining that the sounds of the male blue whales is decreasing as the species is increasing. Their sounds are fewer since the proximity to a mate is lessened.

This increase in the blue whale species is good news and I hope that this continues dispute the debate among the whaling and non-whaling member countries of the International Whaling Commission.

Here is a clip of some musical humpback whales put together by the Oceania Project, a non-profit is Australia that is dedicated to caring for whales, dolphins and the oceans.

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‘Drumroll’ means spawning season for some fish species

Did you know the fish species, red drum and black drum (pictured right), are in the same family as spotted sea trout and Atlantic croaker?  All of these fish have an ability to produce a drumming sound on their air bladders … Which, is how they got commons names such as “croaker” and “drum”. This drumming sound is very noticeable during spawning seasons.

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image (c) landbigfish.com

Can a sea star see?

Not in the traditional sense that you and eye see, I mean, you and I see.

Sea stars (Sidenote: since they are not ‘fish’ sea stars, as opposed to starfish, is more appropriate) have an eyespot at the tip of each “leg”. These eyespots can distinguish between light and dark and other stimuli and the sea star is able to react to what they sense.

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Better Practices needed for BP

Still recovering from Hurricane Katrina, coastal Louisiana is watching from the sidelines as slow moving oil slick creeps upon its shores. The oil is from the tanker DeepWater Horizon leased by the BP (used to stand for British Petroleum but in 2007 Britain’s third largest company started marketing themselves as Beyond Petroleum for a more global, greener image). The tanker exploded and sank approximately 40 miles offshore, killing 11 workers. Early estimates proved too optimistic, reports now say about 200,000 gallons of oil per day could be spewing from the site. This disaster may surpass the 1989 Exxon Valdez disaster. Even today, more than two decades later, the Prince William Sound in Alaska is still recovering.

This is devastating for Louisiana. The state’s economy relies on its coastal ecosystem. It is the largest producer of seafood in the lower 48 states. Over $1.8 billion dollars is spent on the retail sales of seafood and $1 billion dollars in the sport fishing industry. Louisiana has 40% of the US total wetlands. Wetlands are vital areas for fish and shellfish to grow, they act as a type of nursery grounds. Sadly, the oil spill happened at the peak spawning time for fish.

How did this accident occur? Interior Secretary Ken Salazar is investigating the 30 offshore oil rigs and 47 production platforms in the Gulf of Mexico. I hope it did not happen because last year a senior BP executive was successful in thwarting the regulation of mandatory safety codes for oil rigs (these would apparently be too much of a hassle and slow construction).

BP is responsible for the cleanup of the Gulf of Mexico, but President Obama said at the White House Thursday that “every single available resource” would be used.

http://www.whitehouse.gov/the-press-office/remarks-president-rose-garden

For its part, BP has enlisted the federal, state and local governments for assistance, and it’s been issuing regular updates on its company website, unfortunately BP officials don’t seem to be making any guarantees they are equipped to stop the flow of oil from reaching Gulf shores alone.

http://www.bp.com/genericarticle.do?categoryId=2012968&contentId=7061565

One aspect of the cleanup effort involved the burning of the oil off the surface of the water. Many compassionate environmentalists have been volunteering for the cleanup efforts as well. Floating barriers have been put up to block the contact of the oil to the wetlands.

One great irony of the week is that the federal government did make an effort for the US to be more energy independent. Interior Secretary Salazar approved the construction of Cape Wind, the first offshore wind turbine. The 130 turbines will be in an area off the coast of Man130-turbine proposal for the Horseshoe Shoal area of Nantucket Sound, off the coast of Nantucket Sound near Massachusetts. Once the two year construction project is complete, Cape Wind should generate around 1.5 million megawatt-hours of renewable electricity each year, or enough to supply about 230,000 homes.

Another is that the oil disaster happens just as President Obama recently announced plans to expand offshore drilling. Yet just as reports of the first oil was reaching Louisiana shores, a senior adviser to President Obama told The New York Times that those plans could be on hold.

http://www.nytimes.com/2010/05/01/us/01gulf.html

“The deadly explosion of an offshore oil rig last week and the resulting spill have complicated Mr. Obama’s recently announced plans to expand offshore oil and gas drilling, with some politicians and environmental advocates calling on the president to halt any planned expansions until more safeguards are put into place against future disasters,” the newpaper reported.

Too bad those safeguards come too late for Louisiana.

Legitimize whaling in Japan?

Yes, there has been a draft compromise made that would make it ok for whales to be taken from the oceans for “scientific research” in Japan.

Read more here …

http://www.panda.org/wwf_news/news/?uNewsID=189581

Seashell, seashell by the seashore

Can you identify these different seashells? (Answers as common names in the next post)

1. 2.

3. 4.

5. 6.

Images (c) seashells.org

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What is the difference between a tern and a gull?

Wings: Terns have long-pointed wings while gulls have broad wings.
Beaks: Terns have sharp bills while gulls have hooked beaks.
Body size: Terns are smaller.
Predatory practice: Terns dive to water to grab fish while gulls float on water to pick up prey.

Tern (l), Gull (r)

Image (c) cheasapeakebay.net (tern), wikipedia.com (gull)

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Heeeeeeeere’s Carson (Rachel)!

Spring time is right around the corner (or so I hope) and with the change comes migrating birds of course!

One of my favorite sites is a female osprey tending her nest on an uplifted platform.

Each time I see one I am so grateful for Rachel Carson who had the courage and gumption to write Silent Spring. The book was published in 1962 as the launching pad for the environmental movement. The subject matter was the basis to ban the pesticide dichlorodiphenyltrichloroethane, or DDT, in 1972. Ms. Carson was able to link DDT to a decrease in the thickness of the eggs of large birds of prey, such as the bald eagle and osprey. This led to very few bald eagles and ospreys being born.

Although, sometimes I feel a lot of distress being an environmentalist one major success is the increase in numbers of mating pairs of ospreys since the ban on DDT. I am proud to say that prior the the ban there was fewer than 8,000 pairs and almost thirty years there are approximately 16,000 pairs. This is yet, another reason to say “Go Ospreys!” other than the fact that they are my college mascot.

Image (c) Fish and Wildlife Service.

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