Can the Mangroves Survive This Oil Spill?

The first time I heard of the oil drilling platform disaster in the Gulf of Mexico, I immediately thought about Sanibel Island – and the Florida and gulf coastline – that is home to a huge and diverse variety of land and marine animals, including the mollusks.

The oil spill will affect every living thing in those waters in a very negative way.  And mollusks, the animals in the shells, live at all depths of the ocean, but an important area for not only mollusks, but fish, birds, reptiles and other wildlife is the mangrove areas.

The mangroves, where many animals thrive, are plants living near or in the water line along the coast or inlets in salt water. Typically the mangrove trees have lots of roots above and below water and aid in protecting the coast from erosion. They are also home to many types of mollusks. The water is saline, or brackish, but shallow and serves as a place of protection among the root systems.  Oil on mangrove roots kills the trees by not allowing oxygen in.

In fact, “Florida’s fisheries would suffer a dramatic decline without access to healthy mangrove habitats.” is an excerpt taken from “Ichthyology” in the section about the importance of mangroves and how they serve as breeding grounds for all kinds of fish and mollusks as well as shrimp and oysters.  This page tells of the detrimental impact of disasters, including oil spills and it leaves me wondering how on earth an oil spill this enormous can ever be cleaned up before catastrophic damage is done.

Mollusks, either eat plants and algae or other animals.  If their food sources are covered in oil, or the creatures they eat have been affected by the oil, it will be passed on to the creature who eats it.  If the mangroves die, where will marine life go who depend on mangrove areas for protection and how will a lack of protection from erosion affect our coastline and the fishing industry?

I suppose that only long term studies can tell us exactly how great an impact this latest disaster has been, but I am not looking forward to the results when what we can see already is so disturbing.

About the Chambered Nautilus

The Chambered Nautilus is an interesting mollusk called a cephalopod. Like the squid, octopus and cuttlefish, the nautilus’s head is attached to it’s feet or foot, but unlike them, it has a complete shell to cover it. The shell appears similar to a snail shell, but inside it is divided into “chambers” which hold gas to keep the animal buoyant. He will add water to the inner chambers when he needs to dive deeper and let it out to float. An adult will have about 30 chambers in it’s shell. It is believed that they can live up to 20 years!

Nautilus shell magnet magnet

With very poor eyesight, the nautilus depends on it’s sense of smell to hunt for food. It has a crushing beak which allows it to feed on shrimp and crabs, along with fish, which it catches with it’s 90 (approx.) tentacles, but since it exerts little energy to live and move, it only needs to eat about once a month!
It uses a tube to expel water- jet propulsion- which moves it along to move from place to place. The nautilus will dive deep during the day- to depths of 1800 feet- to avoid predators and rise back up during the night to feed on the reefs.

Nautilus shell section stamp
You will not find a nautilus shell lying on the beach- at least it seems very unlikely- and I do not own one. The photos here came from deegolden’s Store at Zazzle.

They can be found living among coral reefs in the Indian and Pacific Oceans and a full grown nautilus can reach 8 inches in length.

In some places the nautilus population is declining because of the popularity of it’s shell and to save this creature, most of the sites I visited urged consumers to not support the harvesting of the nautilus by purchasing a nautilus shell.

See an online video of a nautilus eating a crab at the National Aquarium in Baltimore by clicking this link.

Read and see more about the Nautilus and it’s shell:
National Aquarium
Seasky.org
Burghley Nef – early (1500’s) ornamental salt holder made with a natutilus shell.

Chambered Nautilus, Palau, Micronesia


Chambered Nautilus, Palau, Micronesia

Photographic Print

Fleetham, David…

24 in. x 32 in.
Buy at AllPosters.com