Be Terrapin Aware!

Public urged to use caution while driving in shore areas this summer

By: Ben Wurst, Habitat Program Manager and Stephanie Egger, Wildlife Biologist

A adult female northern diamondback terrapin searches for a suitable nest site along Great Bay Blvd. Photo by Ben Wurst
An adult female northern diamondback terrapin searches for a suitable nest site along Great Bay Blvd. Photo by Ben Wurst

Each year in late May and early June the annual nesting season for northern diamondback terrapins begins. This unique species of turtle is the only one to inhabit our coastal estuaries year round. They live exclusively in brackish water.

During this time of year, adult females emerge from the protection of their aquatic habitat to find suitable areas to lay eggs. They seek nesting areas with a sandy gravel type substrate that’s above the high tide line.

Throughout their range along the coast, terrapins face a variety of threats to their survival. Terrapin nesting habitat has been lost due to commercial and residential development, shoreline hardening and flooding which poses a greater threat to these limited nesting areas. Loss of terrapin nesting habitat along marsh systems put terrapins at greater risk of mortality as a result of increased time searching for adequate nesting areas (Winters 2013). Terrapins will utilize roadsides for nesting which increases the threat of being hit by motor vehicles. Roads are essential to our daily life but they often are barriers to wildlife, especially small critters like terrapins. Studies have shown that adult females have become less abundant and smaller from road mortality. (Avissar, 2006).

You can help terrapins several ways during the nesting season. Driving more cautiously from now until mid-July is a simple way to be more aware of terrapins crossing the roads. Nesting peaks during the full and new moon cycles and they’re more active during the high tide (less distance to travel on land to nest sites). We ask drivers in coastal areas to “Be Terrapin Aware” while driving in these areas. If you find a terrapin crossing the road use these steps to help it cross safely:

  • Stay safe. Never put yourself at risk! Make sure that you do not endanger yourself, or others, by walking into traffic.
  • When safe to do so, pull your car over and onto the shoulder, if possible. Turn on your hazard signals.
  • When safe to enter the roadway, approach the turtle and pick it up by grabbing its shell with both hands between its front and hind legs. HOLD ON – Terrapins have strong legs!
  • It is important that you move the turtle in the direction that it is heading. They are not always headed directly towards water. They will turn around if you put them in the wrong direction, so work with their instincts.
  • Place the terrapin off the road onto the soft shoulder (dirt or grass).
  • If you have a GPS or a smartphone then record your location and submit your sighting on our website.
  • Please do not move a terrapin long distances to “somewhere safe!” They have very small home ranges and moving them will only hurt them.

Rescuing a live terrapin (or any other turtle) from the road is a rewarding experience. It’s a great way to engage future generations in caring for our terrapins.

You can also help terrapins during the nesting season by supporting our new “Turtle Gardens” project. CWF, in partnership with the Marine Academy of Technology of Environmental Sciencewill develop and implement an educational initiative to promote terrapin nesting habitat enhancement. These “Turtle Gardens” will raise awareness of the benefit of living shorelines to terrapins and other coastal wildlife, as it relates to sea level rise and coastal flooding within the Barnegat Bay Watershed. Turtle Gardens for terrapins are patches of sandy nesting habitat above the high water line that are less susceptible to flooding. They also reduce the risk of road mortality. We will be having informational training sessions for those that would like to volunteer for monitoring Turtle Gardens or have property that would support a Turtle Garden. Information on these sessions will be announced in mid-June.

In addition, we will also be looking for terrapin sighting information with Project Terrapin in Berkeley and Lacey Townships in Ocean County as part of an initiative to fill in data gaps for this species on the mainland. If you see terrapins in these locations please report your sightings online.

Learn more:

 

Ben Wurst is the Habitat Program Manager for Conserve Wildlife Foundation of New Jersey and Stephanie Egger is a Wildlife Biologist with Conserve Wildlife Foundation of New Jersey.

Volunteers needed to help protect terrapins!

Training Session scheduled for May 12th at 6pm in Tuckerton
A female terrapin pauses while crossing Great Bay Blvd in Little Egg Harbor, NJ.
A female terrapin pauses while crossing Great Bay Blvd in Little Egg Harbor, NJ.

We work hard to protect wildlife for future generations to enjoy. One of those species, who is largely an underserved species in New Jersey is the northern diamondback terrapin. Terrapins are so cool yet hardly noticed by many. They face a HUGE amount of threats. To list a few (from greatest to least): Poaching, drowning in crab traps, road mortality, predation (usually of eggs or young), and collisions with boats and boat props. That’s a long list of threats to the health of their population, which no one really knows how they are doing…

What we’ve done with them in Tuckerton and Little Egg Harbor is address a problem which was believed to be the root cause for their decline in the area. Studies that have been done in the area have stated that the overall size and age of terrapins has decreased over time. Another documented the total road mortality rate at 70% of individuals that crossed the road (the actual rate in a more recent study was around 30%, but that’s still high and having an impact). Either way, each year many terrapins are being injured and killed by motor vehicles.

Each year we recruit volunteer “Terrapin Stewards” to help patrol area roads. This hardy and extremely dedicated group of volunteers work tirelessly to prevent terrapins from becoming road kill and also collect valuable data on their annual migration to find suitable nesting areas. On May 12th at 6:00pm we are hosting a short training session for anyone interested in volunteering this year. Attendees will also learn more about all of the work that we’ve done over the past 5 years.

Terrapin Harvest Closed in New Jersey Waters

NJDEP Commissioner issues Administrative Order to close remainder of terrapin season

by Ben Wurst, Habitat Program Manager

The harvest of terrapins from New Jersey waters is now banned! Photo by Ben Wurst
The harvest of terrapins from New Jersey waters is now banned! Photo by Ben Wurst

Northern diamondback terrapins can no longer be harvested from New Jersey waters. Yesterday NJ Department of Environmental Protection Commissioner Bob Martin signed an Administrative Order closing the remainder of the commercial harvest season.

“People who live in coastal communities or visit the shore have long treasured the diamondback terrapin,” Commissioner Martin said. “Unfortunately, due to significantly increased harvesting, more needs to be done to ensure the species remains a viable part of our coastal ecosystem.”

Terrapins have long been an under-served species in New Jersey. In the past there have been many unknowns with regards to their commercial harvest from Nov. 1 to March 31. No permits. No bag limits. No reporting. All while the pet and food trade in Asia is rapidly growing. It wasn’t until last year when a federal permit was filed to export terrapins to Asia which brought more scrutiny to their harvest. The incident found that a total of 3,500 individuals were harvested from NJ waters in 2014! Then in late December, NJ Division of Fish and Wildlife Conservation Officers caught fishermen who illegally harvested 800 terrapins (which were all released) on Absecon Bay!!

CWF is the project leader for the development of a regional, multi-state strategy for Northern diamondbacks aimed at achieving long-term sustainability for terrapins throughout the Northern and Mid Atlantic Region (35 partners/8 states).

This is a step in the right direction for terrapins. Next is changing their classification from a games species to a non-game species so they can get the protection they need. We applaud NJDEP and the NJ Fish & Wildlife COs who have helped this amazing and unique species of turtle!

Entangled sea turtle rescued off South Jersey coast

 

U.S. Coast Guard and staff from the Marine Mammal Stranding Center rescued an 800-pound leatherback sea turtle off of the coast of Southern New Jersey. For more information on sea turtles facing risks along our coastline, click here.

To read the full article on this video, click here.

Terrapin Week: Making a Difference

This story marks the fourth of five blog stories spotlighting New Jersey’s Diamondback Terrapin – and educating people on the research and efforts being done to protect these fascinating reptiles!

Part 1, Monday, was an introduction into the world of the Diamondback Terrapin. Part 2, Tuesday, featured CWF’s research efforts to protect the terrapins. Part 3, Wednesday, looked at great places to view these beautiful turtles . Part 4, today’s blog post, will highlight some important ways you can help protect the Diamondback Terrapins. Part 5, Friday, will showcase some other important regional research being done by our partners.

Steps You Can Take to Protect the Diamondback Terrapins!

by Ben Wurst, CWF Habitat Program Manager

A female terrapin pauses while crossing Great Bay Blvd in Little Egg Harbor, NJ.
A female terrapin pauses while crossing Great Bay Blvd in Little Egg Harbor, NJ.

We all can make a difference to help conserve northern diamondback terrapins. This beautiful species is a symbol of our coast – and now more than ever, we need to be sensitive to our incredible coastal estuary ecosystems!

Here are some ways that you can help make a difference to protect this amazing species:

  • Slow down, don’t tailgate, and be aware while driving in coastal areas from May through July.
  • If you see a terrapin on the road, pull over, put on your hazard lights and carefully help the turtle cross in the direction it is going. Please be careful and use your best judgement and do not get in front of a motor vehicle to stop them on area roads. Do not jeopardize your own safety for a turtle.
  • If you go crabbing and use commercial-Maryland style crab pots, use BRDs or “bycatch reduction devices” to prevent terrapins from getting trapped in them. Use line that sinks to prevent a crab pot from becoming lost. Abandoned crab pots can trap and kill a ton of marine life over time, including blue claw crabs, many species of fish, and terrapins.
  • Talk to others to educate them about terrapins and their role in the ecosystem. You can learn all about them in our Online Field Guide!
  • Volunteer with CWF to patrol roadways and take part in other volunteer actions in Southern Ocean County, Atlantic County, and Cape May County! We really need your help – so please contact us if you, your business, or your civic group is willing to help save the incredible diamondback terrapin!
  • Donate to CWF’s diamondback terrapin program. Any amount would help greatly! Click here and note Terrapin in the PayPal note, or you can mail a contribution to Conserve Wildlife Foundation, 501 East State Street, P.O. Box 420, Mailcode 501-03E, Trenton, NJ 08625-0420. Be sure to note Terrapin in the check’s subject line.

Email us at info@conservewildlifenj.org with Volunteer in the Subject line if you’re interested.

Terrapin Week: Viewing Terrapins!

How to See Terrapins in the Wild in New Jersey

This story marks the third of five blog stories spotlighting New Jersey’s Diamondback Terrapin – and educating people on the research and efforts being done to protect these fascinating reptiles!

Part 1, Monday, was an introduction into the world of the Diamondback Terrapin. Part 2, Tuesday, featured CWF’s research efforts to protect the terrapins. Part 3, today’s blog post, will look at great places to view these beautiful turtles. Part 4, Thursday, will highlight some important ways you can help protect the Diamondback Terrapins. Part 5, Friday, will showcase some other important regional research being done by our partners.

 

by Ben Wurst

During full and new moon cycles females terrapins are hard NOT to see on Great Bay Blvd. in Little Egg Harbor, NJ.
During full and new moon cycles females terrapins are hard NOT to see on Great Bay Blvd. in Little Egg Harbor, NJ.

During their nesting season, Northern diamondback terrapins are usually pretty easy to spot along the coast of New Jersey, and throughout their range. They are beautiful turtles with very unique coloration.

Individuals vary in coloration, but in general, their upper shell, or carapace, is dark with a diamond shaped pattern on it. Their lower shell, or plastron, is a light yellow/green color. Their skin is a grey color with black spots that vary highly between individuals. Almost all have a light upper mandible.

From May through July, spotting a terrapin is pretty easy!

Females leave the protection of the coastal waterways to find suitable nest sites to lay eggs. They seek areas with sandy soil, like dunes, parking lots and road shoulders. When our barrier islands were developed, roads were created to access those islands.

The creation of these roads also increased the amount of available nest sites for terrapins. But the development itself actually decreased the amount of suitable nesting habitat for them overall. Much of our coast is now bulkheaded.

Bulkheading restricts the natural movement of terrapins and limits their ability to find suitable nest sites. So, now they must take what they can get: roadsides. Nesting on the edges of roads is a perilous journey for terrapins. The vehicles that travel on those coastal roads may have careless drivers behind the wheel.

Terrapins may be found in many different places along the coast, especially roads that criss-cross saltmarsh. Use extreme caution in trying to spot terrapins on active roads used by vehicles – not only to avoid driving over terrapins, but for your own safety and that of other drivers or pedestrians.

Some widely used locations include Avalon Boulevard and other west-east highways connecting the mainland with barrier islands and peninsulas. Many coastal areas in Cape May also feature high numbers of terrapins, while Monmouth County, Ocean County, and Meadowlands coastal regions feature plenty of terrapins as well.

However, one of the best places to view terrapins during their nesting season is inside the 5,000+ acre Great Bay Blvd. Wildlife Management Area, Little Egg Harbor, NJ. The WMA is located along the coast and is accessible by motor vehicle from the 5 mile long road that ends at the Rutgers Marine Field Station. The road was originally planned to connect the mainland with Atlantic City in the early 1900s. Luckily that plan fell through and the last bridge was never built (road is also called 7 Bridges Road, after the 7th bridge that was never built). There is plenty to see and do out on GBB, at all times of the year. A wide variety of wildlife can be observed from the road, including ospreys, terns, oystercatchers, herons, egrets, and shorebirds. Lots of outdoor recreation opportunites await as well, including crabbing, fishing, and kayaking. There are boat ramps along the road, and all the owners of the local marinas are very nice, including Capt. Mike’s, Rand’s Boats, and Cape Horn Marina.

A nesting terrapin.
A nesting terrapin.
Viewing terrapins:

Terrapins can be timid if approached, especially when nesting. Please keep your distance when near a nesting female. You wouldn’t want to cause a female to abandon laying eggs in a nest cavity! If she is unable to cover up her eggs with soil then they might become an easy meal for a gull or crow… Watching them nest is fun to watch as they excavate down and lay 8-12 eggs.

If you see one on the road and there is no traffic, slow down or stop and let it cross. If there is traffic coming, stop your vehicle, put on your hazard lights and carefully get out and move the terrapin in the direction it is heading. Terrapins can bite, so be careful and pick it up from the side of it’s shell (called the bridge). Use 1-2 hands to ensure you have a good grip. Sometimes they use their legs to try and get you to let go! Put it on the soft shoulder to be out of harms way. If you have a GPS or a smartphone, record the location and submit us a sighting via our online terrapin sighting form. Data collected from the form will help guide future conservation efforts for them in NJ.

Other great viewing areas:
  • Gateway National Recreation Area – Sandy Hook Unit
  • Island Beach State Park
  • Edwin B. Forsythe NWR – Oceanville
  • Wetlands Institute – Stone Harbor
  • Reeds Beach
  • Fortescue Beach

Ben Wurst is a wildlife biologist for Conserve Wildlife Foundation of New Jersey.

Photo from the Field

Slow down, don’t tailgate and help a terrapin cross safely!

by Ben Wurst, Habitat Program Manager

Female terrapins often cross roads to find suitable nest sites along the Jersey Shore. © Ben Wurst
Female terrapins often cross roads to find suitable nest sites along the Jersey Shore. © Ben Wurst

This week the annual nesting season of northern diamondback terrapins began. Females leave protection of our coastal estuaries to seek out suitable nest sites, course gravel and sand, which is often along roadsides. These individuals often cross roads to get to these nest sites. Please be courteous of terrapins and slow down, leave a greater following distance, and help a terrapin cross when you see one on the road.

 

Interesting recaptures on Great Bay Blvd.

Barnegat Bay terrapin moves south…

by Ben Wurst, Habitat Program Manager

ABINOQ. Photo by Ashley Hecht.
ABINOQ. Photo by Ashley Hecht.

Northern diamondback terrapins are known to have a very small home range. Some have only been found to occupy the same small creeks, year after year. To help study the size of terrapin populations in New Jersey researchers have used a method called mark and recapture. No one really knows the size of the terrapins population in New Jersey and throughout the range of the Northern subspecies, which ranges from Cape Cod to Cape Hatteras. A portion of the population is captured, marked, and released. The method is repeated and the number of marked individuals is counted and should reflect a proportional number of marked individuals in the entire population.

Since 2001 terrapins have been marked on Great and Barnegat Bays. This past summer we got hits on three females that were PIT tagged (it’s like the Home Again chip for your pet). Their tags were read during road patrols by our intern Ashley. Two of the three were linked back to previous captures. Each is ID’d by the notches on their carapace (upper shell). Each bridge scute on their carapace is assigned a alpha code.

  • ACIJV –  First encountered on June 20, 2008 at age 7. Weighed 805 grams with a carapace length of 157cm. She was recaptured again this summer by Ashley on June 9. She is now 12 years old and weighed 934grams. Her carapace was 170cm long. She moved only .86 miles or 4,561 feet from her last encounter, which is typically the small range seen in terrapins.
  • The second is ABINOQ – she was orginally trapped on Barnegat Bay (near Gunning River and the Barnegat Docks) on August 23, 2011. She was 8 when trapped and weighed 766 grams with a CL of 170mm. She was re-caught this summer while crossing Great Bay Blvd in Little Egg Harbor. This now makes her 10 years old and she weighed 965 grams and had a CL of 180mm. Now she moved a total of 16.7 miles in two years!!
Natural movement of ACIJV around Great Bay Blvd. This is more typical of terrapins.
Natural movement of ACIJV around Great Bay Blvd. This is more typical of terrapins.
The extent of ABINOQ's travels...
The extent of ABINOQ’s range.

I find it really hard to believe that ABINOQ traveled 16 miles south in two years. There are a couple ways that she could have moved that far south. Superstorm Sandy – I think that this is a good possibility. Usually in late October most terrapins should have been entering hibernation, but a few could have still been active. I got a couple calls shortly after the storm hit from residents in the Little Egg Harbor area who found displaced terrapins in their yards. Given the fact that upwards of 6 feet of water were forced onto the coastal marshes with the storm surge, this could have pushed ABINOQ south towards Great Bay Blvd, where she was encountered this summer. Human intervention – this is also a very likely scenario. People often pick up terrapins when they find them on or near roads and sometimes take them home. Other times they take them and put them somewhere else, where they think they should belong… This summer I found a large female on an inland road in Upper Twp. (Cape May County). She was over 1.5 miles from any kind of brackish water…which is a long distance for any aquatic turtle to travel on land!

These findings are really interesting and with the data collected we’ll be able to learn a lot more about the local terrapin population. We hope to expand the use of PIT tags readers by fundraising to purchase additional readers. If you’d like to donate to help us purchase one, please shoot me an email.

Photo from the Field

Volunteers help install innovative new barrier to reduce terrapin road kills

by Ben Wurst, Habitat Program Manager

Last week volunteers from CWF and Exelon-Oyster Creek Generating Station helped to install 1,000 feet of barrier “fencing” along the first stretch of Great Bay Blvd inside Great Bay Blvd Wildlife Management Area. The new barrier is a new design and concept for reptile conservation here in NJ and possibly the rest of N. America. While many other types of barriers have been used by other organizations this type has not. It is a corrugated rigid plastic drainage pipe that was cut in half. It was made in NJ by ADS (Advanced Drainage Solutions) and was purchased through Caterina Supply, a local supplier of the pipe. Funding was provided through a Partners Agreement between Little Egg Harbor Twp. and the U.S. Fish & Wildlife Service (who purchased the pipe). The pipe came pre-cut from ADS and was transported by Eric Schrading with USFWS. To install the pipe we trenched a ditch and then hand dug it to the width of the 10″ pipe. It was then backfilled and screwed together where two pieces met. The main reason from switching from a traditional fence type barrier to this was to reduce future maintenance. Fences are easily damaged by motor vehicles and posts have been stolen or ripped out of the ground, so they take more time to repair throughout the year. This pipe should be maintenance free and hopefully if a car drives over it only minor damage will occur…we hope!!

Volunteers and employees from Exelon-Oyster Creek helped us to install 1,000 linear feet of barrier "fencing" to help reduce road kills of northern diamondback terrapins along Great Bay Blvd. © Ben Wurst

If you’re interested in using this in your own reptile/amphibian conservation project email me and I’d be happy to help in any way possible!

Thank you to all the volunteers, vendors, and partners who help make this project a success!! To name a few: Home Depot of Manahawkin for donating the trencher for an afternoon, USFWS & Eric Schrading for purchasing and transporting the pipe, and Little Egg Harbor Twp. for their continued support of this project.

Reduce the speed limit on Great Bay Blvd.

Ask Little Egg Harbor to help us protect terrapins!

by Ben Wurst, Habitat Program Manager

This female northern diamondback terrapin was not able to lay her clutch of eggs after being killed by a motor vehicle on Great Bay Blvd. © Ben Wurst

Currently there are no posted speed limits on Great Bay Boulevard from Sea Isle Drive to the east end in Little Egg Harbor Township, Ocean County, New Jersey. The road bisects one of the largest state wildlife management areas along the entire coast of New Jersey which is also designated as the Jacques Cousteau National Estuarine Research Reserve. Designation as a National Estuarine Research Reserve is “to promote the responsible use and management of the nation’s estuaries through a program combining scientific research, education, and stewardship.” The habitat alongside the road is home a diverse array of wildlife and one species, the northern diamondback terrapin, often crosses the roadway to get to prime nesting areas along the road shoulders.

Female terrapins range in length from 6-9″ and actively search for nesting areas during summers months from May through July. They are hard to see with their dark coloration and high speed limits make identification even harder. On some days as many as 50 terrapins can be seen crossing the road. Many people stop to help these terrapins cross safely and they themselves put their lives in jeopardy. Luckily no one has been seriously injured or killed yet. Unfortunately, terrapins aren’t so lucky, previous studies have indicated that up to 30% of terrapins are killed on Great Bay Blvd. while attempting to find suitable nesting areas (Szerlag and McRobert, 2006).

The Township of Little Egg Harbor knows about the problem there but has done little to help solve it. Public safety should be a serious concern for any type of government. In other parts of New Jersey and in other states people and property have been seriously injured or killed and damaged while either helping one cross safely or by avoiding a collision with them.

Little Egg Harbor can help reduce the chances that a pedestrian gets killed or injured, and they can reduce the amount of terrapins that are killed by motor vehicles. By reducing the speed limit along the road from 50 mph to 30mph both people and wildlife benefit and motorists get to their destination safely.

References: 
Szerlag, S., and S. P. McRobert. 2006. Road occurrence and mortality of the northern diamondback terrapin. Applied Herpetology 3:27-37.