Earth Blog

The ARC Centre for Excellence of Coral Reef Studies in Australia published a study in the latest issue of the journal Ecology that would like to remind us there are a bunch of little fish that make coral reefs happy and healthy. Despite our focus on higher profile marine animals that often tug on our heartstrings (sea turtles) or frighten us (sharks), the fish that provide basic maintenance deserve some credit.

"Herbivorous fishes protect coral reefs by limiting the growth of algae, or seaweed," says Loïc Thibaut, the lead researcher of this study. "Seaweeds grow rapidly and compete with corals for space. If left unchecked, they can smother the corals and take over the reefs. This shift, once it happens, is extremely difficult to reverse."

This week Greenpeace released their sixth seafood sustainability scorecard for grocery retailers. They have had their eye on the industry since 2008 and have released a report ranking twenty popular stores since then but Greenpeace has always had their eyes on marine life since its birth in 1971.

The scorecard is part of an ongoing project known as Carting Away the Oceans (CATO) where they not only rank retailers but examine conservation efforts,discuss better practices or habits retailers and consumers can do to protect marine ecosystems.

Over the weekend Whole Foods Market announced that they would be making a major change to their seafood departments. They are going to stop selling certain species of fish because they are unsustainable. This new policy comes a whole year before Whole Foods’ original deadline to begin the practice.

The change will start on April 22nd or Earth Day and it means there will no longer be red-rated, wild caught fish sold in their stores. Examples are: Atlantic halibut, grey sole, and skate. Instead customers will be directed to purchase fish that are similar but sustainable like Pacific halibut which is a Marine Steward Council (MSC)-certified fish. The MSC-certification is on any wild caught, sustainable fish that doesn’t have the color-coded label the store also uses.

The seafood departments stoplight colored rating system, which works well at a glance for quick decision making, was set forth in 2010 by Whole Foods and two non-profit organizations: Blue Ocean Institute and Monterrey Bay Aquarium.

A threatened coral reef off the coast of Florida’s Broward County received a staghorn coral transplant last week. Researchers at Nova Southeastern University’s (NSU) Oceanographic Center noted that this was the first time this specific reef has received coral.  Along the Florida coast and globally reefs have previously benefited from nursery grown coral. 

“This is the northernmost location on the planet for transplanted staghorn corals,” said Abby Renegar, a researcher and doctoral student, “Staghorn corals previously have been transplanted in the Florida Keys, Southeast Florida, and other tropical locations around the world.”

Just in time for Spring Break a new federal regulation will prevent certain boats from discharging sewage -whether or not it’s treated- into California’s marine waters.  The sewage ban will create the largest “No Discharge Zone” (NDZ) in the country stretching from Mexico to Oregon and includes waters around major islands. The ban will stop an estimated 22 million gallons or more of treated sewage from being dumped into the oceans, bays, and estuaries each year along 1,624 miles of coast. Under the Clean Water Act the state of California was able to ask the EPA to approve the NDZ to help restore water quality.

“This is an important step to protect California's coastline. I want to commend the shipping industry, environmental groups and U.S. EPA for working with California to craft a common sense approach to keeping our coastal waters clean," said California’s Governor Jerry Brown.