Lionfish Light The Way

picture of a Red Lionfish

The Red Lionfish, with its graceful fins and venomous spines, is creating a very serious problem since its invasion of the Gulf and Mediterranean waters.

As some of you may know, the Lionfish is a warm-water species from the Indo-Pacific waters.  Sporting venomous spines, they are a generalist, eating everything from fish nearly half their size, to crustaceans, shrimp, etc.  Having been introduced in the early 1990′s off the coast of Florida, they are taking over the Gulf and Caribbean waters.  Their venomous spines are an adaptation that indigenous species have no means of dealing with.  Their presence has been devastating to an already challenged ecosystem.  Starting from that one spot in Florida, and tracing back genetically to just 6 or 8 females released into the Gulf’s waters, they now cover a vast range, covering the entire Gulf and Caribbean region (see image further below.  As generalists, they are destroying the balances of nature, consuming and growing unchecked.  Sturdy, these beautiful fish are akin to the red-tailed hawks of North America; they can live on most anything and thrive in many conditions.  Their only bottleneck now is cooler waters; They don’t seem able to withstand waters further north, so spreading to the UK along the Gulf Stream is unlikely.

Picture of a bluespotted Coronetfish

The Bluespotted Coronetfish, natural predator of the Lionfish, has migrated with them through the Suez Canal into the Mediterranean’s waters.

The Gulf isn’t their first foray far from home, though.  They and one of their natural predators, the Coronet Fish, have both crossed from the Pacific to the Atlantic already on their own, traveling through the Suez Canal to the Mediterranean.  Initially spotted there in the early 1980′s, they have been held in check (to an extent) by the Coronets, which presumably eat the young Lionfish.  And that is crucial in a species which can breed all year long in warm waters, each female laying as many as 2 million eggs a year.  The Gulf has no Coronetfish at this time, so there is nothing to prey upon those 2,000,000 young — and that’s 2 million eggs per female.

NOAA, the Grand Cayman Islands and other concerned agencies and governments are very concerned about this invasive species, and rightly so.  The mussel invasion is insignificant in comparison to the devastation being wrought by the beautiful and deadly Lionfish.  Roatan reports that coral fish are down by 80%, and that the Lionfish are growing at an astounding rate of 15 TIMES as many as would would be found in their native Indo-Pacific waters.

picture of an Atlantic Grouper, clearly larger than the human diver she faces.

These amazing fish can reach up to 400 pounds. Protected in US and Caribbean waters since the early 1990′s, they are slowly making a come-back, but it takes a long time for that big of a fish to mature.

In the Mediterranean, the challenge isn’t as significant because both made their way through the Suez Canal on their own, Nature’s balances traveling together, and the Mediterranean Grouper may also play a part in keeping them in check.

But in the Gulf, the only possible natural predators are Grouper fish and certain species of shark.  Eels have been seen to eat them, but it is not known if they are later affected by the venom.  Grouper spawning sites are under total restriction of any exploitation until 2019 in the Grand Cayman islands, but the Atlantic Grouper’s numbers are so low that they cannot be counted on to take the place of the Pacific Grouper, which is a natural predator in the Lionfish’s natural ranges.  The notion of introducing Coronetfish into the Gulf may seem to have merit, but meddling is what has caused this catastrophe in the first place.
So why is the title of this article suggesting that they are lighting the way?  In both cases, the introduction of the non-indigenous species to the Gulf waters, and the creation of the Suez Canal, man’s interference has caused this.  (The Suez and Panama canals both link the Pacific to the Atlantic, removing the natural barriers which have existed for countless thousands of years.)  In their natural waters, they have natural enemies.  Nature has her own checks and balances, which evolve and change as needed.  And eventually, Nature will balance these changes out as well, one way or another.  But we may not care for the results, because things will get worse before they get better.

How is this lighting the way?  It it is all too easy for us to put oceanic issues out of sight and out of mind.  These two examples clearly demonstrate how human actions can have unforeseen and catastrophic effects upon the entire planet.  We built the Suez canal so that transport by ship would not have to go around the Horn at the southern tip of Africa, and built the Panama Canal for the same reason, joining the Atlantic and Pacific without the hassles  and perils of going around South America. Mariners may rejoice in some ways, but these natural barriers have been protecting balanced systems for a very long time.  What these two examples demonstrate via separate causes and identical consequences, is that we cannot interfere with Nature safely.  We cannot “manage” wildlife.  (ED: Frankly, we can’t manage our own populations, let alone those of an other species.)  The best we can do is to protect the environments from our own species.  Now we’re struggling to kill off the invasive Lionfish, and developing ill feelings towards these beautiful beings.  But it was us who caused them to be there in the first place.  And the blame cannot be placed on whomever dumped those 8 females into Florida’s coastal waters.  There is an entire industry which has been taking these fish from the Indo-Pacific for decades, selling them into captivity in our saltwater tanks, so we can have them as a decoration piece, and Ooh and Aah over them.  That, too, was unnatural, and that is the real culprit behind the Gulf invasion.

We don’t bemoan the aquarium and pet shop enthusiasts though.  We bemoan the Lionfish, and attack them.  We intend to rectify the mistake by harpooning them, or capturing them in other ways and eating them.  ”Isn’t that better than just killing them and throwing them out?”  Perhaps it is… but the mindset behind it all is another matter entirely, and that needs to be taken to task.

We must see ourselves as one part of the global ecology, neither greater nor lesser, neither disposable nor essential.  We must not be so arrogant as to act in contradiction to Nature.  When we do, such disasters are the result.  Whether it’s joining two distinct and separate bodies of water or trying to put Nature in a fish bowl, or tapping oil 5 miles beneath the surface, this planet cannot afford our arrogant indulgences.  It is essential that we learn from these mistakes and promote a non-interference policy in all ways.  Homo Sapiens is not yet quite wise enough to be meddling with Nature.  Protecting the oceans means a hands-off policy on and in them.

Moving graphic/video showing the spread of Lionfish from 6-8 fish dumped into the ocean in 1991 to them covering the entire Gulf of Mexico and the Caribbean islands.

Animated image shows the spread of the Lionfish in the Gulf since the early 90′s

Take pictures, leave footprints, if that much.

Where Have All The Whalers Gone?

Seriously. As late as the 1970′s, Australia and the United States were amongst the whaling nations. After even the International Whaling Commission (IWC), which is a pro-whaling organization, called for a moratorium on killing whales, nearly all nations stopped the activity.

Picture of whaling in times past

Back when it was harder to kill a whale, we weren't as much of a threat to them... or ourselves.

Why? What changed? We became to clever, too capable of killing. Where once it was a dangerous and courageous act to go out into the oceans in pursuit of a whale, perhaps kill one or two, men developed power boats and explosive-charged harpoons fired from 50-caliber guns… and the whale populations went from millions to a few hundred thousand in half a century.

Her Deepness, Dr. Sylvia Earle, describes the scenario in her book, “The World Is Blue (How our fate and the oceans’ are one).”  After millions of years of being the apex predator, the supreme beings of the sea, along comes man, figures out how to make things (fuel and gunpowder) explode, and throws off the entire natural order of things in the ocean by invading their world, by killing off beings as smart and long-lived as we are, as though they were a prey species.

Today there are still a few commercial whaling nations.  Japan, the Faroe Islands, Greenland, Iceland, Canada, Indonesia, Norway and Russia all still defy the IWC moratorium. There are still some whales being killed with permit by indigenous people in the U.S. as well. And amongst those nations is the concern “What will happen to us, to our whalers, if we no longer kill dolphins and whales?” Well, where have all the whalers gone from the other whaling nations?

The slack was quickly picked up by other more harmonious maritime occupations. Taiji’s fishermen might actually go catch fish, for example. Or take people out on whale-watching tours. Or transport goods. The argument is vapid. What did all the railroad workers do when airplanes caught on? What did the plantation owners do once slavery was outlawed? They found other jobs, and other ways. Though we humans tend to fear change, we can and do adapt. If we stop killing whales (and perhaps ONLY if we stop killing whales) life will go on.

Is that hyperbole?  No, it’s not.  Taking out an apex predator has far-reaching and profound impacts on the rest of the living beings around them.  Without their natural predators, prey populations first balloon, then starve down to dangerously low numbers.  Everything that eats those fish, squid, and plankton are likewise affected — us included.  Our fate is inextricably linked to that of the ocean and her inhabitants.

Where have all the whalers gone?  Gone to other jobs, every one… and the world is a far better place for it.  Now we need to stop the rest of the killing, so that the natural order of things, so that natural balances can return.  We can take from the ocean, but we cannot strip and rape it as we have been doing, running roughshod over it with reckless abandon.  The ocean cannot survive that… nor can we.

To get a better understanding of the ways in which our fate is linked to that of the ocean without making a carbon footprint, download a copy of Dr. Sylvia Earle’s “The World Is Blue.”   If you prefer a hard copy, you can click here to order that instead.  By following either link, Protect The Ocean gains a small percentage from the sale, and you gain a much larger perspective of the world!

Whaling and Whale Protection – Two more very worthwhile  recommendations:

and

Wildlife Weekend – Whale Watching Tour

Whale Watching Tours San Diego

No plans for Memorial Day weekend? Take a weekend to surround yourself with marine life on a Searcher Natural History Tour Wildlife Weekend. We’ll take you to the deep offshore waters of San Diego and cruise past the Los Coronados islands of the coast of Baja, Mexico. Blue and fin whales; seabirds such as albatross, shearwaters, storm-petrels, and terns; common and Risso’s dolphins; elephant seals and California sea lions, and much more are expected. Join Searcher crew and expert naturalists on a San Diego whale watching tour, a weekend to remember!

Wildlife Weekend Itinerary: Saturday, May 28th – Monday, May 30th, 2011

Day 1: Board Searcher at 8 a.m. at Fisherman’s Landing in San Diego on Saturday, May 28th. Then we’re off to look for dolphins and migrating blue whales as we make our way to the 9-mile bank. We’ll spend the rest of the day over deep-water areas where we encounter pelagic birds and other marine life.

Day 2: Spend the entire day offshore searching and observing marine mammals and seabirds.

Day 3: Cruise through Mexican waters past Los Coronados Islands to view seabirds, elephant seals, California sea lions, and other animals that use these remote islets for resting, nesting, and feeding. Arrive back to the dock at Fisherman’s Landing by noon on Monday, May 30th.

Cost: $450 (Includes all meals, beverages, and on-board accommodations). A portion of the sale of each ticket goes to support ACS and its education, research, and conservation initiatives!

Whale Watching Tour Reservations: To reserve your spot aboard The Searcher visit www.bajawhale.com

Or contact Celia Condit:

Phone: 619-226-2403
Email: searcher [at] bajawhale.com
Searcher Natural History Tours,
2838 Garrison Street,
San Diego, CA 92106

Thanks! Update Provided by:
Cheryl M. McCormick, Ph.D.
Executive Director
American Cetacean Society
www.acsonline.org