Starfish in New Jersey: Identification Guide and Where to Start Looking

1. What Are the Most Useful Identification Markers for Starfish in New Jersey?

Focus on arm number, color, and surface texture. Most New Jersey starfish have five arms, but look for the wrinkled, bumpy skin of the northern sea star (*Asterias forbesi*) versus the smoother, more uniform color of the common starfish (*Asterias rubens*). Check the central disc size relative to arms: a small disc typically means Forbes' starfish, while a larger disc points to the northern species. Their tube feet, located on the underside of each arm, are also a key feature to observe if you find one in a shallow pool.\n\nIn New Jersey, starfish sightings usually improve when you slow down and match your first stop to the most useful ID markers and likely lookalikes. Use thestate wildlife huband theroute guideto narrow your first area, then check access, weather, and distance before you settle in. A short walk with one clear viewing plan often beats covering too much ground, especially when habitat changes fast from open edges to brush, wetlands, timber, shoreline, or neighborhood cover.

2. Where in New Jersey Do People Usually Spot Starfish First?

Start with the southern coast, especially Cape May, Wildwood, and Island Beach State Park. Starfish tend to wash up after nor'easters or spring tides, piling up in the wrack line among shells and seaweed. Jetties and rock groins at low tide also hold starfish clinging to the underside of rocks. Check the bayside beaches, like in the back bays of Stone Harbor, for more sheltered sightings. The intertidal zones of the Atlantic City beaches can also be productive after a heavy surf.

3. What Is the Best Season or Time Window for Confident Sightings?

Late fall through early spring offers the best odds. Cooler water temperatures keep starfish active near shore, and winter storms regularly wash them onto beaches. Plan a trip right after a nor'easter or a full moon low tide when the water pulls back farthest. Mornings are better than afternoons because winds are calmer and the tide is often low. The early spring months often see a high number of starfish appearing in the tidal pools as they move closer to shore to feed.

4. How Do I Separate New Jersey Starfish from Lookalikes?

Lookalikes include the brittle star (thin, whip-like arms) and the sand dollar (round, no arms). True starfish have five arms that merge into a central disc. Color ranges from orange-brown to pale yellow; Forbes' common starfish often shows a bright orange tip on each arm. If the skin feels spiny and the animal is stiff when alive, it's a starfish. Brittle stars are much more fragile and will often drop an arm if they are handled, unlike the more robust common sea stars.\n\nSee ourstate animal guidefor the next step.

5. What Should I Do When I Find a Starfish?

Observe without removing it from the water. Starfish breathe through their skin and cannot survive long out of water. If it's stranded on the beach, gently return it to the surf or a shallow tidal pool. Never pull a starfish off a rock; you might rip its tube feet. Take photos from above and from the side to capture the disc and arms for later ID. If the starfish is dry and clearly no longer alive, it can be kept as a souvenir, but live animals should always be left in their habitat.

How do starfish feed in New Jersey's coastal waters?

Starfish are effective predators, primarily feeding on mollusks like mussels, clams, and oysters. They use their powerful tube feet to pull the shells of their prey apart. Once a small gap is created, the starfish actually pushes its stomach out through its mouth and into the shell of the prey to digest the animal inside. This unique feeding method allows them to consume prey that is much larger than their own mouth opening.

What are the common colors of starfish found in New Jersey?

The starfish found along the Jersey Shore come in a range of earthy and vibrant tones. Most common are shades of tan, brown, and pale orange. However, some individuals can be a deep purple or even a bright reddish-orange. These colors often help them blend into the rocky and sandy environments where they live. The color can also vary depending on the age of the starfish and its recent diet.

6. How Can I Record My Starfish Sighting for Others?

Use the iNaturalist app or the New Jersey Department of Environmental Protection’s wildlife log. Snap clear shots of the upper surface and the underside (showing the mouth and tube feet). Note the exact beach, date, and tide level. Your sighting helps biologists track species range shifts as waters warm and provides valuable data on the health of the local marine environment.

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Frequently Asked Questions about starfish in New Jersey

**Can starfish live out of water?** No, they rely on a water vascular system to move and breathe. They can only survive for a few minutes in the air before they begin to dry out and die.\n\n**How many arms do New Jersey starfish have?** Most species found in the state have five arms, though you may occasionally find an individual with more or fewer due to injury or regeneration.\n\n**Do starfish have eyes?** Yes, they have small eye spots at the tip of each arm. These spots cannot see detail but can detect light and dark, helping the starfish move toward or away from light sources.\n\n**Can starfish regenerate their arms?** Yes, starfish are famous for their ability to grow back lost arms. If a predator bites off an arm, the starfish can regenerate it over several months, provided the central disc remains intact.\n\nSee ourtour planning ideasfor the next step.