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QuikSCience Challenge 2007

Sea Nettles

THE NETTLEWORK


Sea nettles are a rising concern in the Barnegat Bay. In order to create a location for all information, data, and reports relevant to sea nettles in the Barnegat Bay estuary and its watershed, we have created an information management website. This website will allow users to find the information they are looking for regarding tracking, reporting, and discussing Sea Nettles in the Barnegat Bay. As of now, there is not enough data readily available to the public regarding sea nettle where-a-bouts and how to deal with them once they have found them found in the bay system. By creating this website, Quickscience members at The Marine Academy of Technology and Environmental Science (MATES) hope to help inform and protect the community from future encounters with Sea Nettles in the Barnegat Bay.

Identification of a Sea Nettle

When you believe you have spotted a sea nettle please look at the following list of characteristics to be certain that the jelly you have identified is a Sea Nettle.
It must fit all of these characteristics:


1. Bell-shaped cap (> 10 cm in diameter)
2. Edges of the swimming bell appear scalloped (16 or more lappets)
3. Array of tentacles extend downward toward the seafloor
4. Tentacles can be >1 m in length
5. Color ranges from milky white to white; radiating purplish red stripes on bell


When you believe you have spotted a sea nettle please take a photo and send it to our reporting station. If this is not possible please describe the sea nettle with as much detail as you can. We are mainly tracking in the Barnegat Bay area, but it would be very helpful if surrounding areas would contribute to this data base as well. This may tell us what direction the jellyfish are heading or may show us their migration at different times of the year. Sea Nettles may take over many more marine ecosystems along the coasts of the United States unless more people become informed and aware of their polluted waterways.


Sea nettle stings and how to treat


Sea nettle stings are very unpleasant, but a re-occurring problem facing people living in the Barnegat Bay and other sea nettle infested areas. Surprising numbers of people who live in the Barnegat Bay area of New Jersey have been stung by Sea nettles. However; if you do happen to get stung by a sea nettle there are a few ways to treat the wound.


If bits or pieces of tentacles are still on the surface of the skin, pour alcohol or baby powder on the infected area. Alcohol will stabilize the nematocyst so that it will not be triggered. Powders have the same effect because they dry out the cells. Without this treatment, tentacles which are disturbed may release additional nematocysts, causing additional irritation and swelling.


Next, apply diluted ammonia, sodium bicarbonate, vinegar, or meat tenderizer to the area to relieve pain. Meat tenderizer is one of the best sources of relief from stings. Add a small amount of water to the meat tenderizer to make a paste and smear it on the inflamed area. Meat tenderizer is an enzyme which breaks down proteins. Jellyfish venom is made of protein and is consequently destroyed by the meat tenderizer.
Baking powder solution may be better for flushing a sea nettle sting, but vinegar is best when you are not completely sure what animal has stung you.


Human Impact in the Barnegat Bay


Housing developments have expanded onto the very borders of the Barnegat Bay. Excess development and the expansion of paved roadways cause compaction in soils. Compaction allows runoff to flow directly into the Barnegat Bay in consequence. Lawns are controlled and maintained with fertilizers, pesticides, herbicides, and sprinkler systems. Water is used in excess and has little area to recharge before it enters the bay. Non-point source pollution enters the Barnegat Bay from sources such as fertilizers, pesticides, sewer systems, herbicides, boat emissions, and runoff from roadways. Runoff causes eutrophication, an excess of nutrients that causes algal blooms which reduce water-oxygen levels during the summer. Sea nettles seem to thrive in areas with excess levels of Nitrogen and Phosphorus from non-point source pollution, such as the Barnegat Bay. Although sea nettles don’t seem to be affected by eutrophication, many other forms of life are adversely affected by algal blooms and the food chain in the bay is altered. Macroalgal blooms have negative impacts on eelgrass (Zostera marina) in the Barnegat Bay. Eelgrass serves as important food source and habitat resource for numerous species of animals in the bay. As eelgrass beds die, shellfish like: muscles, oysters, and clams begin to lose their habitat and their populations begin to decline as well. Fish lose their habitat, food source, and clean water as their populations begin to decline as well.


Coastline developments alter the contour of the land. The natural contour of the land is important for the natural runoff cycle and may prohibit surface water from entering other bodies of water at a normal pace. Vegetation near bays may also be used as a buffer to protect the bay naturally. By changing the vegetation and contour of the land we create a problem for nature so that naturally filtration on the shoreline ceases. We believe that a 300’ Riparian Buffer built around the entire Barnegat Bay will help filter runoff entering the bay on a daily basis. Riparian buffers are plants and shrubs planted along the edge of a body of water. The plants remove the nutrients from the runoff before they infiltrate the water. These natural buffers also protect the shoreline from erosion, natural disasters, and rising sea level because their strong roots help hold soil in place and help keep soil aerated and nutrient rich. Because riparian buffers consist of native plants from the area, they need less maintenance and will thrive in their natural environment without the use of any types of pesticides, herbicides, or sprinkler systems. Besides the simple notion of protecting the abiotic and biotic species in the Bay, towns have the legal right to build any type of protection system that will offset future impacts from Global Warming such as rising sea levels.


How to offset Human Impact in the Barnegat Bay


We as a community must unite and start to monitor what we are using and control our water usage. Sea nettle populations are at rise, and eelgrass, fish, bivalves, and water quality are at a low. If we don’t act quickly, the Barnegat Bay may no longer be a safe and fun place to swim and boat with your family and friends during the summer months of the year. Sea nettles will strike, and their painful sting will remind you that time is running out.


The Barnegat Bay Estuary is one of the last remaining salt marsh environments along the Atlantic coast. Please Help us Protect and Maintain the Barnegat Bay.You can help save the bay.

organicconsumers.org
cleanwaternj.org
recycle earth - google
enviroinfo
The Nature Center Challenge pdf

 


Take Action
• Found a Sea Nettle?
• Report It
• Track Sea Nettle Sightings
• Discussion Board for Sea Nettle Sightings

Let us know what you think: e-mail: thenettlework@yahoo.com
Links


EPA
NJ DEP

 

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