Released by the Florida Fish & Wildlife Conservation Commission …
Welcome to the spring edition of Living on the Edge, the newsletter of the Coastal Wildlife Conservation Initiative! This is a quarterly newsletter to update Florida Fish and Wildlife Conservation Commission (FWC) staff, partners and members of the public about Florida’s coastal issues, including current projects and other points of interest. Regular highlights will include featured projects related to coastal wildlife, interviews with our staff or partners, special seasonal considerations, news and events, volunteer opportunities and current funding opportunities. If you are interested in spreading the word about your project or someone doing a fantastic job in coastal conservation, please contact CWCI Coordinator Fara Ilami at fara.ilami@myfwc.com.
The Coastal Wildlife Conservation Initiative is an FWC-led multi-agency strategy to address threats to coastal wildlife and habitats, while also considering human interests and uses of Florida’s coastal areas. The goal is a statewide cooperative process to protect coastal wildlife populations, conserve and manage coastal ecosystems, while achieving balance between conservation and opportunities for recreation, commercial activities and responsible development.
Hot Topic: North Atlantic Right Whales Calving Success
The North Atlantic right whale (Eubalaena glacialis) is one of the most endangered large whale species in the world, with only about 400 individuals left in the population. Although right whales spend much of their time in feeding grounds off the northeastern U.S. and Canada, they regularly migrate down to the coasts of Georgia and northeastern Florida in winter to give birth and nurse their young. Researchers conduct aerial surveys of these calving areas to locate the whales, monitor reproduction and health, and provide vessel strike mitigation. While this year has brought a total of seven new calves, researchers are still concerned that number is not high enough to yield population growth, as more than 16 births per year are needed to increase the population. Between 2017-2019, there have been at least 20 right whale deaths and only 12 births.
The North Atlantic right whale has been listed under the Endangered Species Act since 1973. Plagued by commercial overfishing in the late 1800s, the right whale was brought to the edge of extinction by 1900. Entanglement in fishing gear and vessel strikes are the primary threats to the whales today, as their habitat often overlaps with fishing grounds and major ports. This is why the work that the FWC’s Fish and Wildlife Research Institute and other researchers are doing is so important. FWRI scientists conduct approximately 55 surveys lasting about six hours each during the calving season (December-March). The surveys are conducted from about 1,000 feet in altitude and up to 30 miles offshore between Georgia and the Canaveral National Seashore in Florida.
Each right whale has a unique and distinct pattern of markings on the top of its head. This hardened skin is called “callosity.” Callosity grows on the right whale in many of the places where humans have hair: over the eyes, on the chin, along the upper lip and on top of the head. The callosity is covered with small, white crustaceans called “whale lice” that make the callosity appear white. Researchers at FWRI use these methods to keep track of whales:
• Each right whale located is individually photographed by the aerial survey team.
• The photo is then compared to the photo catalog of right whales. Each right whale has a page with a collection of photographs (much like your family photo album) and a unique number or name.
• If the photo is matched to a whale in the catalog, then the information is added to the history of that individual’s sightings.
In the 1980s, photo identifications allowed researchers to determine the whales sighted in northeastern U.S. were the same whales migrating to the waters of Florida to have their offspring. At present, researchers supplement the photo-ID data with genetic information to determine the sex and paternity of calves. The ability to identify individual whales allows researchers to collect an entire life history of each right whale, as they track its movements, including births, deaths, injuries and health.
Your whale sighting reports are important! Thanks to public efforts, several right whale mother-calf pairs were reported along Florida’s eastern Atlantic coast this winter. Please continue to report your whale sightings to 1-877-WHALE-HELP (877-842-5343) or the volunteer sighting network at 1-888-97-WHALE.
FWRI collaborates with NOAA Fisheries, Georgia Department of Natural Resources, Clearwater Marine Aquarium Research Institute (formerly Sea to Shore Alliance) and volunteer sighting networks in Florida to carry out our research activities.
Featured Project: Scallop Restoration in the Florida Panhandle
Bay scallops (Argopecten irradians) may have a short life, typically about a year, but they play a big role in the economies of many coastal Florida towns. Unfortunately, scallop populations in the waters off the Florida panhandle have decreased over the past several years. In response, the FWC’s Fish and Wildlife Research Institute in 2016 initiated a 10-year project to restore bay scallop populations. The project is funded by restoration money set aside after the Deepwater Horizon oil spill and is intended to increase recreational fishing opportunities in the Florida panhandle. The goal of the project is to increase depleted scallop populations and reintroduce scallops in suitable areas from which scallops have disappeared.
To help restore scallops, FWC biologists annually collect adult scallops from St. Joseph Bay and bring them to a hatchery, which will provide juvenile scallops the following year. These hatchery scallops are then placed in cages at restoration sites in the panhandle. The cages protect the scallops from predators and increase the likelihood the scallops will successfully produce offspring. In addition, underwater scallop “collectors” are also placed at restoration sites to collect wild scallop spat (larvae). The spat then are raised at the Florida State University Gulf and Coastal Marine Laboratory. Once they reach a size of 30mm, they are planted in cages in their bays of origin. Since the project began, FWC biologists have placed about 20,000 scallops in cages in St. Joseph Bay and St. Andrew Bay. In the coming years, biologists plan to expand these restoration efforts to Pensacola Bay and St. George Sound.
Last year, biologists received a helping hand with the scallop restoration project from volunteers in Gulf County and Bay County. Volunteers first attended workshops in April to receive training as “Scallop Sitters.” Participants in the program volunteered to babysit cages of scallops placed in St. Joseph Bay and St. Andrew Bay. Scallop Sitters placed their cages either off their own private docks or in a location in the bay they could visit using their own kayak or boat. Every month from April to December, volunteers checked the cages, cleaned their scallops and reported on the status of the scallops to FWC biologists. In addition, a lottery was held monthly, with the winning volunteers selected to go out on a boat with FWC biologists to help with scallop restoration. These Scallop Sitters maintained 202 scallop restoration cages containing 4,825 scallops in St. Joseph Bay and St. Andrew Bay! In the first year of the Scallop Sitter program, 194 volunteers participated and contributed approximately 400 volunteer hours to the project!
In addition, the first-ever official “Scallop Rodeos” were held last year in St. Joseph Bay and St. Andrew Bay. Volunteers at the rodeos rounded up 50 scallops each, which they returned alive to FWC staff. At the end of the rodeos, FWC staff placed the collected scallops in scallop restoration cages in the bays. The St. Andrew Bay rodeo was held on July 21, and 57 volunteers collected 553 scallops from the bay. In St. Joseph Bay, the scallop rodeo was held on August 4, just prior to the opening of the 2018 scallop season. Over 100 volunteers helped to collect 1,123 scallops during the St. Joseph Bay scallop rodeo.
This year, FWC biologists are again asking volunteers to participate in the Scallop Rodeos and Scallop Sitters program! The Scallop Rodeos will be held in St. Andrew Bay and St. Joseph Bay on July 20 and August 3, respectively. And if you are interested in becoming a Scallop Sitter this year, the only requirements for you to participate in this program are:
• Live near St. Andrew or St. Joseph Bay from July to December;
• Have access to the bay, either from a private dock, boat or kayak;
• Be willing and able to care for and clean scallops once a month from July to December;
• Attend or view via webinar our scallop restoration workshop in July.
For more information about the Scallop Rodeos or Scallop Sitters programs or to sign up to participate in these programs, please visit our website or email us at BayScallops@MyFWC.com
Spring Wildlife Tips: Observing Wading Birds
The term “wading birds” refers to the many long-legged birds found along wetlands, marshes, ponds, mudflats, beaches and other shallow water areas. Florida’s wading birds, which come in a variety of shapes, sizes and colors, include egrets, herons, spoonbills, storks, ibis and even flamingos. Four species of wading birds are included in Florida’s list of imperiled species: the little blue heron, reddish egret, roseate spoonbill and tricolored heron.
Wading birds are colonial, meaning they prefer to roost and nest in large groups of single or mixed species. Nesting typically occurs from December to July in most parts of the state. Large colonies of nesting birds, called rookeries, can be found on tree islands in both freshwater and saltwater areas. Wading birds may return to the same rookery for nesting for many years, and a single island can sometimes support thousands of nesting birds.
What you can do to help protect wading birds:
• Birds in flight are beautiful, but disturbances can hamper their ability to forage and nest successfully. Avoid approaching birds feeding or roosting. If birds appear agitated or take flight, you are too close! If possible, stay back at least 330 feet.
• When viewing wildlife, remember the importance of “passive observation.” This means watching birds as they engage in normal behaviors free from disturbance. Use binoculars or a spotting scope to observe birds more closely. When photographing birds, it’s best to use a camera with a zoom lens for beautiful photos without getting too close.
• Wading birds will often gather in groups to rest (roost) or nest on islands where they are safe from predators. Landing on or approaching these islands too closely will flush birds, causing them to expend important energy or exposing their eggs and chicks to predators.
• Fishing line poses an entanglement risk to wildlife. Cast your line away from birds and shoreline vegetation. Keep bait buckets covered, and don’t feed birds directly or indirectly. Always collect and store loose monofilament line until it can be discarded properly.
• Share your knowledge about wading birds and safe viewing practices with others.
Plant of the quarter: Sea Oat
If you grew up along Florida’s coast or spent any time vacationing there, you likely heard several admonitions uttered by adults: “Don’t go in the water until one hour after you’ve eaten” and “Stay out of the sea oats, they’re protected!” While the former is an old wives’ tale, supported by no medical evidence, the latter is sound common sense supported by coastal science and Florida law (section 161.242, Florida Statutes). A common native beach plant throughout most of its range, the sea oat (Uniola paniculata) is extremely important in stabilizing beach sand, building protective dunes and providing food and cover for wildlife.
Sea oats are found on sandy beaches and barrier islands along the Gulf and Atlantic coasts of the southeastern United States from Virginia to Texas and portions of Mexico, the Bahamas and Cuba. Sea oats are a long- lived, slow growing grass, with graceful seed stalks which can reach heights of over six feet. The leaves reach approximately 24 inches in length and are about one-inch wide, tapering towards the end. The blades are green but can be brown and curled at the end. In the summer months, seeds are produced in large seed heads or panicles (hence the species name) on long stalks. As with the tips of the leaves, the arching seed stalks change from green to brown as summer wanes. Sea oat seeds are dispersed by wind and small animals like beach mice. Sea oat plants also spread vegetatively by budding at the stem. Sea oats have extensive root rhizome systems. The plant develops a thick network of roots as it grows upward with the dune.
The ecology and form of the roots and stems make Uniola paniculata an extremely important plant in coastal systems. Sea oats trap wind-blown sand grains at their base, which aids in formation of dunes. Accumulation of sand stimulates further growth of the plant, with side shoots sprouting up through the sand. In this manner, sea oats create and stabilize dunes and can build the dune upward one foot per year. Loss of sea oats and other coastal vegetation leads to erosion and loss of the protective dunes. Areas behind well-developed dunes are buffered from damage by hurricanes and other storms. It is for this reason that the state of Florida has enacted dune protection measures. Many coastal communities are restoring dune fields by actively planting sea oats to facilitate dune growth.
By stabilizing and building dunes, sea oats help ensure suitable nesting habitat for sea turtles. The green turtle, a threatened species of sea turtle, regularly nests in the dunes among sea oats. In addition to their role of dune creators, sea oats are also an important food source for many denizens of the beach and dune system, such as red-winged black birds, native sparrows and songbirds, marsh rabbits and beach mice, several of which are federally listed as threatened or endangered.
As environmentally conscientious citizens, we can encourage state and local governments as well as homeowner associations to plant esthetically pleasing sea oats that will build our dunes, protect property and enhance wildlife habitat. We also can add our voices to the chorus of previous generations and shout “STAY OFF THE DUNES!”