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Wreck Pond

Improving habitat, protecting communities

April 18, 2018

4/18/2018

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In yesterday’s post we highlighted some of the results from our fourth, and most recent, sampling event. In today’s post, we will be talking about what we caught in the event prior.

The third sampling event took place from March 29th to April 2nd. No river herring were caught; however, we did catch a number of large common carp (Cyprinus carpio), each weighing around 10 to 11 lbs. Common carp are not native to NJ, or to the United States for that matter. They were first introduced to North American in 1831 by Captain Henry Robinson of New York who brought them over from France. In a little over 50 years, common carp had become established in waterbodies throughout the nation. In New Jersey, common carp are present in almost every lake, pond, river, or stream. They have a long lifespan, living anywhere from 12 to 20 years. They forage on the bottom sediments of waterbodies, using their fleshy barbels to taste for insects and other invertebrates. Yet they are largely non-discriminant eaters, often consuming vegetable matter in addition to insects (NJDEP).

In addition to the common carp, we also caught one mirror carp (Cyprinus carpio carpio). The mirror carp is a variant of the common carp that is differentiated by its irregular, patchy scaling pattern. The difference in scales is the result of variants in two genes.
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Another notable catch during the third sampling event was of a chain pickerel (Esox niger). This was our first catch of this species in Wreck Pond.  

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April 17, 2018

4/17/2018

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This morning we completed our fourth sampling event at Wreck Pond. Our sampling data from prior years suggests that the majority of alewife that migrate into Wreck Pond over the course of a spawning season do so in one or more large waves, often occurring in April. This pattern was born out this past weekend, as we caught 36 alewife over the course of two days (25 the first morning and 11 the second morning). It is possible more would have been caught if not for the change in weather. A sharp temperature drop halfway through the sampling event followed by strong winds and rain, may have affected the alewife spawning run as many fish are known to alter their behavior due to changes in light, temperature, or pressure associated with storms.  
Despite the harsh conditions, we continued to sample. Only one golden shiner and one white perch were caught the remainder of the event. Golden shiners are a predominately freshwater fish that often prefer the quieter parts of the river. Interestingly, the golden shiner was caught this morning. Rainwater flowing into the watershed last night and this morning creating high freshwater flows may help explain its appearance lower in the watershed.
I want to thank everyone who has volunteered so far, particularly those who came out this last event.      
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March 21, 2018

3/21/2018

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Underneath the Wreck Pond Railroad Bridge, the orange buoy is out of the water. This past Monday (3/19), the Society wrapped up its second Wreck Pond sampling event of the year. Unlike our previous sampling event earlier in the month, no river herring were caught. Further, only a couple fishes were caught throughout the event: five white suckers were caught Saturday morning (3/17), and two white perch were caught Monday morning. We believe it is likely that the harsh March weather impacted fish movement (as I write this, the fourth nor’easter of the month is barreling across the state). Throughout the net set, winds were blowing hard west creating upwelling and lowering inshore water temperatures. Ocean temperatures were in the low 40 degrees Fahrenheit, a temperature not preferable for river herring migration. Further, winds have been creating blow-out tides with little water remaining to support fish movement during low tide underneath the railroad bridge.
 Earlier this month, we registered our first detection of a tagged alewife at the new culvert. Fish 548 was caught in the fyke net the morning of March 1st. She was tagged and released, and later detected at the entrance of the culvert 15 minutes before midnight. Her abrupt departure, may be an indication of fallback, in which the stress of capture and tagging resulted in her abandoning her migration.

​Keep a lookout for the orange buoy from March 29th to April 2nd when we will be out there sampling once again. 


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March 1, 2018

3/1/2018

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You might have noticed a strange orange ball floating underneath the railroad bridge in Wreck Pond the past couple of days. Well, that’s because it’s fish sampling time once again! Earlier in the week we successfully tested our fyke net and now have deployed the orange buoy that signals the start of the 2018 Wreck Pond river herring sampling season. The season for spring sampling will continue through late June and we are hoping to see big numbers of alewife (and hopefully a blueback or two) this year. If you remember, last year we only caught about 50 alewife post-culvert construction, and we thought we might have missed the big run due to rapid changes in weather that occurred prior to our April start. That is why we are out so early this year. We want to see if the herring are coming into the pond when we are having pre-spring warm spells like we have had earlier this week. Like last year, this warm spell will quickly change and older weather will be on the way. One difference this year is the warm spell will be followed by a big Nor’easter.
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On the evening of February 27th, the Wreck Pond Sampling team, including local volunteers, set the fyke net up under the rail road bridge located just south of the Shore Road rail road crossing and adjacent to the pump station. The next morning, four fish were caught including one grass carp, two white suckers, and one white perch. Although the evening event yielded no catch, this morning on March 1, 2018 (drum roll please), we caught two healthy adult alewife river herring. All involved were elated and we immediately began to process the fish to ensure survivability. Once weighed and measured, the two individuals (one male and one female) were both safely tagged and released upstream.

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This is the earliest the Wreck Pond team has caught river herring in their net. The species is typically observed once water temperatures are between 42 to 50 degrees Fahrenheit but ocean temperatures have been hovering around 40 degrees and we did not anticipate seeing any herring yet. At the time of capture, the temperature in the pond was recorded at 47 degrees Fahrenheit (39 degrees offshore). We will continue to monitor offshore buoy readings but it would appear that the herring can and do come into Wreck Pond when it is a bit colder offshore. One helpful hint regarding their potential presence close to shore are plunging Northern Gannets observed out at sea. Even though these birds are most likely feeding on bunker, it does make us wonder if schools of herring are mixed in as well.

With the upcoming Nor'easter expected to hit tonight through Saturday morning, the team is curious to see if more herring show up in the net pushed by the winds and exceptionally high tides associated with such a storm. We hope to brave the storm and continue sampling through Saturday, but if the orange buoy is gone, that means we either headed for higher ground or we lost our gear. See you after the storm! If you have interest in participating in any future sampling events, please contact Zack Royle, zack@littoralsociety.org   
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February 23, 2018

2/23/2018

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While for most, the warm days earlier this week probably brought thoughts of sunny spring days spent at the beach or the park, but for us here at the Littoral Society, the warm days brought thoughts of one thing: river herring. River herring migrate into freshwater to spawn in early spring, with the start of their migration triggered by warming ocean temperatures. In anticipation of the herring run into Wreck Pond, we spent the past week installing antennas in the watershed. These antennas are used to track the movement of river herring previously tagged with passive integrated transponder (PIT) tags. Like a fish EZpass, when a tagged fish swims through or past an antenna, its tag number is registered on a computer along with the date and time. Our tagging work has already provided some interesting information on the alewives spawning in Wreck Pond: data indicate spawning alewives spend about 20-30 days in Wreck Pond, and are most active at night. In addition, two fish (Samantha and Bonnie) have been recorded spawning in Wreck Pond in multiple years.
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Next week we will be starting our fish sampling. Using a fyke net, we hope to capture adult river herring migrating into Wreck Pond to spawn. We also record information on all other species we catch. If you have an interest in helping to sample, contact Zack at Zack@littoralsociety.org. Stay tuned the next several weeks for more updates on this year’s monitoring.
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February 22, 2018

2/22/2018

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Earlier this month we held a luncheon for our citizen scientists to thank them for all the hard work they had done the previous year. During the lunch, Society staff updated the attendees on the status of the Wreck Pond work and how the data collected in the citizen science program is helping to improve our understanding of Wreck Pond and our restoration work. Delicious sandwiches were provided by Bing’s Beach House Deli in Avon. In addition to the bird and site monitoring, we plan to expand the program this year to include plant monitoring and trail cam surveys. If you have interest in becoming a citizen scientist, please contact Julie at Julie@littoralsociety.org.          
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January 25, 2018

1/25/2018

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The Littoral Society and the Wreck Pond team would like to wish everyone a happy 2018! Between cold snaps, winter storms, and strong winds, this year has certainly had its effect on Wreck Pond. The first two weeks of January brought consistent on-shore winds pushing an extensive amount of sand into Wreck Pond, while freezing temperatures iced over the majority of the water body. As well, erosion occurred on both the East and West sides of the barrier dune between Spring Lake and Sea Girt.  Through it all, the fish passage culvert remained strong and un-phased by such events.  

In the last two weeks,  with rising temperatures, the extensive sand bar (seen below) has begun to reform and dissipate, helping to restore normal flow throughout the water body. 
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With this brings the Wreck Pond teams Spring Fish sampling season. Capt. Al, Zack, and Julie will be setting up computers and anternnas throughout the beginning weeks of February in order to  monitor for adult river herring. The equipment used will help to detect previously tagged individuals coming back to the pond, as well as  monitor the movement of newly tagged herring this season.

As in the past, a fyke net will be used under the rail road bridge to sample fish moving about. The net will be placed during lunar cycles for a three day span checked each day at 6AM and 6PM. All fish captured will be measured and weighed before being released. Should adult river herring be caught, they will receive a PIT tag which will track their movement.  The spring sampling season will run from March until June   
Sampling events are open to the public, but the total number of participants per event is limited. If interested, please contact Julie Schumacher, Julie@littoralsociety.org or Zack Royle, zack@littoralsociety.org for more information on sampling dates and availability.  
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December 8, 2017

12/8/2017

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Winter is upon us, and while our monitoring efforts are done for the year, our work continues at Wreck Pond. Currently, Society staff is completing monitoring reports for the year. These reports document the results of our spring fyke net surveys and PIT tagging, as well as our summer and fall seining surveys. Stay tuned for information on where to access these reports once they are made available.
 
The Society and US Fish and Wildlife Service (USFWS) are also moving forward on the Old Mill Dam Fish Ladder Project. This project will open up almost another mile of potential spawning habitat for river herring. Scientists from USFWS surveyed the dam last month. This survey information, along with water level information collected by our citizen scientists, will be used to develop a conceptual design for the fish ladder. In the upcoming year we will finalize designs and apply for permits.
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 We also want to remind you that February 3, 2018 will be our Citizen Science Potluck Luncheon held at the Frederic A. Duggan Memorial Building in Spring Lake from 11am to 2pm. This event is a thank you to all our citizen scientists who have worked hard this past year collecting data in and around Wreck Pond. Get your recipes ready and bring your best food for a fun filled presentation of what your data shows and how it is helping us improve Wreck Pond and the larger watershed. Please RSVP by January 12, 2018. Contact Julie at Julie@littoralsociety.org or call 732-291-0055.       
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October 23, 2017

10/23/2017

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October 13, 2017. Friday the 13th. A most portentous day in a most ominous month. Who knew what awaited Society staff and volunteers as they set out to once again sample Wreck Pond? Was some dark menace looming in the depths of the pond ready to snatch up would be seiners? Were the ghosts of a hundred Atlantic silversides lost in seine nets of past waiting to rise up and enact their revenge? There was only one way to tell. The Wreck Pond faithful steeled themselves against the ill-omen in the air, and waded into the cool pond waters…

…and caught some really interesting fish!  As always, we caught an abundance of Atlantic silversides; however, mixed in the bunch (and, if not careful, easily missed because of their similar appearance) were a number of bay anchovies. We also caught stripped killifish, northern kingfish, white mullet, and several large snapper bluefish. Remarkably, we also caught one juvenile weakfish (​Cynoscion regalis​). This marks our first catch of a weakfish in Wreck Pond since we began sampling three years ago.
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Weakfish were once an abundant and popular commercial and recreation fish along the coast of NJ and in the Delaware Bay. Overfishing occurred in the 1970s and 80s and regulations were passed in the 1990s and 2000s to reduce fishing pressure and restore stocks. Unfortunately, the population has yet to rebound to its historic levels due to natural mortality from predation, competition, and changes in the environment. Weakfish are preyed upon by striped bass and spiny dogfish, they compete with Atlantic croaker, and warming waters and reduced prey species such as bay anchovy are all likely contributing to high weakfish mortality.
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Juvenile Weakfish
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Bay Anchovy

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October 10, 2017

10/10/2017

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On October 6, 2017, Littoral Society staff and volunteers completed another seining event at Wreck Pond. While we did not match the excitement of last week’s sample (4 juvenile alewife caught!), we did catch a good number of species. As always, we hauled in hundreds of Atlantic silversides, as well as many northern kingfish. One mullet was caught on the Sea Girt side of the pond, along with several striped killifish. We also observed signs of “snapper” bluefish chasing and feeding on bait fish at the pond side culvert entrance, a common site the past few weeks.          
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Snapper bluefish caught in Baltimore County, Maryland. Photo taken by Jon Corcoran.
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