The Nashwaak Watershed

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Volunteer opportunity with a DFO technician

April 6, 2017

We are seeking volunteers to help out at the Rotary Fish Traps (smolt wheels) on the Nashwaak River. The time commitment is a ½ day, weekend morning and it is a really interesting experience.

Nathan Wilbur, NWAI volunteer and Oromocto First Nations staff

Below is a list of the dates for which volunteers are needed. If you are interested, please e-mail NWAI board member Peter Salonius to let him know on which dates you might be available.

If you volunteer please share your photos by social media or email them to the NWAI office

NOTE: You may not be needed on the day you have chosen if the operation is not taking place due to high water or lack of fish in the days previous. You must wear a personal flotation device / life jacket and waterproof boots. Dress appropriately for the weather.

The Department of Fisheries and Oceans (DFO) technician who will be on duty for your morning will contact you by phone a day or so before to set a time and place to meet. The tech can often pick you up at your residence on the way out to the smolt wheels that are just downstream from Durham Bridge, and drop you back at your residence when the work is completed.

The wheel(s) look like cement mixers with the big end facing upstream — the current makes the wheel rotate and downstream and migrating fish are gently directed by the wheel’s rotation into a holding well at the downstream end of the unit.

You will travel by motorboat upriver to the smolt wheel that is guy-wired in the main current, and tie up the boat to the deck (like a floating dock). The tech will do most of the operation (clearing debris from the wheel and fish well, netting the fish and depositing them in buckets in the boat) but he or she will need you to tally the salmon smolts in groups of five, as well as marking down other species and their sizes on waterproof paper in a log book.

Once back on shore, some of the fish that have been retained in buckets will be anesthetized, measured, weighed and a scale sample will be removed for later analysis to determine how many years they have been in the river since hatching from the egg — here again you will be making entries in the log book and marking lengths and weights on sample envelopes into which the glass slides with the scales are deposited. A certain number of the fish will have a small part of their fleshy adipose fin removed / clipped off, which is an operation requiring both you and the tech. At the end of the morning, the marked fish will be taken several km upstream and placed back in the river.

What we learn from this process

The proportion of the fish that are recaptured on subsequent days will indicate how much (the proportion) of the total population is being captured by the wheel(s) so that the total number of juveniles migrating toward the ocean can be estimated at the end of the season. DFO operates an adult fish counting fence in the same location during the summer so that the numbers of salmon returning from the ocean can be compared to the smolt numbers that migrated to the ocean. This measure gives an indication of marine survival. The Nashwaak River is used as the INDEX river for all salmon streams downstream from the Mactaquac dam.

Thank you!

Planned dates for counts

Saturday, April 22
Sunday, April 23
Saturday, April 29
Sunday, April 30
Saturday, May 6
Sunday, May 7
Saturday, May 13
Sunday, May 14
Saturday, May 20
Sunday, May 21
MONDAY, May 22 (Victoria Day)
Saturday, May 27
Sunday, May 28

Filed Under: News & Events

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NWAI on Twitter

@ASDWLimelight @ASDWLimelight @MusicAsdw Check it out

- 165 days ago

Mr. Woodcock's talented gr 12 FHS music class joined us at Marysville Flats this week! We talked climate change and floodplain restoration. We're excited to hear what they create from their Nashwaak River trip. Kudos to the NB Dept of Ed for supporting this awesome experience! https://t.co/6nGyCy7XBP

- 166 days ago

Thanks for supporting this outdoor learning opportunity. Come visit anytime. It was a pleasure to spend time talking about water, climate change and floodplain restoration. @ASD_West @ASDWLimelight @FHSkats @CityFredGov @CityFredRec #eaunbwater #mynashwaak https://t.co/ALhfzSS123

- 168 days ago

Thanks @mla_mike for leading crown land conservation! https://t.co/ObSdrLvBcq

- 170 days ago

@Andrew__Holland @mla_mike @Gov_NB @NCC_CNC Excellent work!

- 170 days ago

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Nashwaak Watershed Association Inc.

Nashwaak Watershed Association Inc.

Nashwaak Watershed Association Inc.

12 hours ago

Nashwaak Watershed Association Inc.
#DYK Pollinator species such as bees 🐝, hummingbirds, and butterflies🦋help plants reproduce by spreading pollen? This is important because it supports the biodiversity of native plants as well as crops around the world.If you would like to help our pollinator friends, here are some tips for growing a pollinator garden:🌻Succession planting - plan to have a variety of plants that bloom from spring to fall.🌷Cultivate variety - different pollinators love different shapes and colours of blossoms. Ensure there is a variety for them to choose from.🪺 Add bird baths and bee houses - this will encourage pollinators to take up residence and come back year after year.See the link below to discover native plant species that will make pollinators sure to visit your garden! 👇davidsuzuki.wpenginepowered.com/wp-content/uploads/2023/05/DSF-NB-plant-list.pdf#ecofriendlyfriday #pollinator #MyNashwaak #nativeplantgarden ... See MoreSee Less

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Nashwaak Watershed Association Inc.

2 days ago

Nashwaak Watershed Association Inc.
Wondering what we’ve been up to lately? If you’re new here, you may not know that we plant lots of trees each year to help re-establish healthy floodplain forests along the Nashwaak River. These floodplain forests are composed of a mixture of silver maple, bur oak, red-tipped willow, red-osier dogwood, and many other species to ensure that there is lots of habitat for local biodiversity. 🌱Over the past two weeks, we’ve spent lots of time flagging! Each spring, we flag our recently planted trees so that we can conduct our seasonal maintenance. While these trees are superstars in terms of their ability to help stabilize riverbanks and provide habitat for local wildlife, they still need some help to ensure that they can survive. Mowing these areas helps to reduce competition from grass and ensure that they are receiving adequate sunlight. If you ever feel like lending a hand, please reach out to us via email at staff@nashwaakwatershed.ca! #MyNashwaak #riverbankrestoration #treeplanting #volunteer ... See MoreSee Less

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Nashwaak Watershed Association Inc.

3 days ago

Nashwaak Watershed Association Inc.
Sunday was a beautiful day for birding and what a wonderful gang we had at @nashwaakmeadows . A big thank you to Dan Serpiello and @atlanticducks for making it such a fun morning! The highlight was definitely the American bitterns ❤️ #birdwatching #community #MyNashwaak ... See MoreSee Less

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Contact Us

Mail:
Nashwaak Watershed Association Inc.
P.O. Box 314, Station “A”
Fredericton, NB
E3B 4Y2

Office:
181 Westmorland Street
Fredericton, NB
E3B 3L6
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Phone: 506 447-9699
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