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walter 06-13-2019 11:30 AM

Really nice bass pic

walter 06-13-2019 11:34 AM

Re: Really nice bass pic
1 Attachment(s)
Re: Really nice bass pic

"Awsome evening on the Miramchi river. Called it quits early...hit 200 fish and arms are tiered. Biggest was 81cm. All on fly."

Francis Daignault 06-14-2019 11:36 AM

Re: Really nice bass pic
That Miramachi is really hosting a lot of bass. You have to wonder where they are coming from.

Chris Garrity 06-14-2019 01:20 PM

Re: Really nice bass pic

Originally Posted by Francis Daignault (Post 2437931)
That Miramachi is really hosting a lot of bass. You have to wonder where they are coming from.

The Mirimichi River, the last time I got out my really long yardstick and measured :D, is something like 500 miles, as the crow flies, from Cape Cod. It's way, way longer the way that a fish would have to swim: having to go around Nova Scotia would make it 700-800 miles, at least from the mouth of the Mirimichi to, say, Gloucester or P-Town.

With the distance, that's gotta be a separate and distinct breeding population of stripe-it bass, right, than the Chesapeake-Delaware-Hudson stocks that we catch down here.

And wouldn't that explain the abundance of the hoser striped bass, while the stocks down here are somewhat depleted? If that body of fish has been allowed to grow, to reproduce and all, with very limited fishing pressure (unlike down here, where the fish never get a break), they just might have quietly become a very viable recreational stock up there.

This stuff is interesting to me.

walter 06-14-2019 01:31 PM

Re: Really nice bass pic
The Miramichi River is where they spawn and they were fishing spawning aggregations most likely.

walter 06-14-2019 01:34 PM

Re: Really nice bass pic
1 Attachment(s)

Losing Essential Smolts to Striped Bass Predation in Southwest Miramichi

Francis Daignault 06-14-2019 03:30 PM

Re: Really nice bass pic
I agree with all the above posts: that it is a separate race of striper; that striper predation is slaughtering the Atlantic salmon. Next issue is whether or not Fisheries should interfer to protect the salmon or just let things develop naturally. With Maratime traditions so entrenched, I doubt that locals are going to stand by and watch their salmon fishing go down. Is there room in the watershed for both species?

If we can stand another variable, does global warming play into this striper development? :doh2:

Chris Garrity 06-17-2019 11:34 AM

Re: Really nice bass pic

Originally Posted by Francis Daignault (Post 2437935)
If we can stand another variable, does global warming play into this striper development? :doh2:

A better way to frame this is whether warming waters have played into this.

The answer to this is an unambiguous yes: waters have warmed. This is a much more empirical (and non-political) subject than "global warming." Scientists have observed things like lobster migrations that are directly attributed to warming waters. And water temperature is much more easily measured than something as complex as gases our enormously complicated atmospheric system.

The question about what to do with the trend of stripers moving north and out-competing salmon? I got no idea. But I believe 100% that warming oceans are making waters north of their traditional range more hospitable to the stripe-it bass.

Francis Daignault 06-17-2019 12:58 PM

Re: Really nice bass pic
A lot of things figure in to decline and uptick in striper populations. Nobody mentions bluefish predation any more when examining striper decline. But there was a time, back when bluefish were in greater numbers, when we were catching schoolies with bluefish cuts in them. You couldn't catch a schoolie that that didn't have a mark on them. I know we have no choice but the scientific community does not know why things happen the way they do. Its all speculation.

As for these periodic declines in striper population, we have been experiencing them since who knows how long? Moratoriums, regulation tightening, blame placing? You would think people would tire of finding excuses for population changes. Wildlife has always suffered from variability, whimsical variations. Reproduction has always been arbitrary with every animal on the planet.

TonyT 06-24-2019 08:25 PM

Re: Really nice bass pic
If they want to help the salmon maybe an open season on the bass and take home only.

Francis Daignault 06-25-2019 04:44 PM

Re: Really nice bass pic
I think they already have an open season on bass. My guess is that nobody wants the bass. Locals probably use the bass but there are not that many locals. This is not Long Island we are talking about here. :dunno:

TonyT 06-26-2019 04:04 PM

Re: Really nice bass pic
I'd fill the freezer up with fillets and put the racks in the garden under the squash/corn/pole beans.

I bet those fish are a lot cleaner then the ones that spawn in USA waters (PCBs and such).

Might be a market for them if transported to the cities.

Francis Daignault 06-26-2019 04:19 PM

Re: Really nice bass pic
They might already be selling them in Canada. They eat fish like everybody else. Also, stripers are Kosher for Canada Jews also which is an added feature stripers offer. Walter would know if stripers are sold in Canadian cities. Where is Walter? Seems to me that stripers would be utilized if they are in nuisance numbers. :dunno:

walter 07-18-2019 04:42 PM

Re: Really nice bass pic

A fish tag that knows it's been eaten is helping endangered Atlantic salmon
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Up to 48 per cent of critically endangered fish are being eaten while leaving Stewiacke River
Paul Withers ? CBC News ? Posted: Jul 14, 2019 6:00 AM AT | Last Updated: July 15

This predation tag knows when it has been eaten because a polymer coating dissolves in the stomach of a predator. (DFO)

New tracking devices inserted into Atlantic salmon reveal that up to 48 per cent of the critically endangered fish are being eaten while leaving Nova Scotia's Stewiacke River on their ocean migration.

The insight is the result of acoustic tags that can tell when a tagged fish has been eaten.

"It certainly is high, and it's somewhat higher than some work that was done by some colleagues of mine about 10 years ago using similar tags, but without the predation detecting capability," says David Hardie, a marine biologist with the Department of Fisheries and Oceans.

Each spring for the past three years Hardie has implanted 50 salmon smolts with predation tags before they run to the ocean.

The tag is equipped with a small dab of polymeric coating that, once eroded by the stomach acids of a predator, changes the signal emitted by the tag.

DFO marine biologist David Hardie inserts a predation tag into salmon smolt on the Stewiacke River. (DFO)
Receivers moored in the Stewiacke River and Minas Basin in the inner Bay of Fundy record a different acoustic signal from a digested and undigested tag.

Eaten on the way to the sea
"In the past two years between 38 and 48 per cent of the smolts that we tagged and released here at the head of tide at Stewiacke River Park were triggered as predated before they reached the mouth of the Shubenacadie River at Maitland," said Hardie.

A previous study has estimated between seven and 27 per cent of tagged salmon smolts in the Stewiacke were being eaten while leaving the river.

That was based on the behaviour of tagged smolts that suddenly started acting like striped bass, moving up and down the river with the tides during bass spawning in the spring.

The predation tags cost $600 each are manufactured by InnovaSea Systems of Bedford, N.S.

They were developed in collaboration with the chemistry department at Dalhousie University in Halifax, said Innovasea president Mark Jollymore.

"Like any new technology it requires a lot of research and development so it takes it takes effort and time to make it into a scalable, reliable commercialized product," Jollymore said.

It's now being used on several rivers in eastern North America.

Striped bass the main predator
It's not clear whether the higher predation level in the Stewiacke River is the result of better tracking technology or the booming striped bass population.

The spring smolt run to the ocean coincides roughly with the arrival of spawning striped bass.

InnovaSea's Mark Jollymore holds up predation tag developed and manufactured by the Bedford based company. (Robert Short/CBC)
"Striped bass have been coexisting with salmon in the entire Bay of Fundy for a long time but striped bass are doing quite well in this river in particular, and it's a spawning site," said Hardie. "The smolts are running through the gauntlet of these striped bass."

This year, Hardie and team members inserted the tags 60 kilometres back from tidewater, and away from striped bass spawning, to try to give the smolts more time to recover from the tag insertion.

The fish are anesthetized for the surgical operation, which would be equivalent to a soda can being inserted into a person.

"Most of our smolts, over 80 per cent of them, made it here to the head of tide and we only had four or five so far confirmed that were predated in the freshwater reach. So that was somewhat encouraging."

Invasive chain pickerel have now infested one upper branch of the river.

Advanced genetic test used for first time on Stewiacke River
For the first time this year, the study is using a new genetic test that can tell whether the fish was vulnerable before it was eaten.

Dalhousie University grad student Daniela Notte took a tiny gill sample from each smolt as it was being tagged.

DFO field technician Cindy Hawthorne and marine biologist Dave Hardie review data retreived from a receiver moored in the Stewiacke River. (Paul Withers/CBC)
The Ribonucleic acid (RNA) test provides a snapshot of the physical condition of the smolt at the time and can detect a wide range of stressors from warm water temperatures to disease to trouble adapting to salt water.

Notte will analyze the results in the fall.

She wants to know if there are shared weaknesses among the eaten.

"We're looking for commonality between the smolt that have been predated versus the ones that have survived to reach the sea," she said.

"That can give us an idea of a possible river restoration or population management."

Trying to solve a mystery
One thing has not changed: Atlantic salmon remain in deep trouble in the inner Bay of Fundy rivers where they are wiped out or on the brink of extinction.

If it weren't for a federal fish hatchery, Atlantic salmon would have gone extinct years ago in the Stewiacke River.

Every year, tens of thousands of young salmon are released into the river as part of a Live Gene Bank program.

Many survive two, sometimes three, years to become smolts. That's when their bodies adapt to saltwater.

Atlantic salmon remain in deep trouble in the inner Bay of Fundy rivers where they are wiped out or on the brink of extinction. (Submitted/Atlantic Salmon Federation)
The problem is almost all, at least 99 per cent, die at sea.

No one is sure why.

Thanks to the live gene bank, researchers like Hardie still have Atlantic salmon they can study.

"We have what inner Bay of Fundy salmon should be like, that are representative of what we've been working so hard to conserve. So anything we can do to characterize how they do, or sadly in most cases don't, survive out at sea is helpful for the broader research."

Hardie hopes findings from this study can tell them where improvements in a river system can increase the odds of salmon survival.

Francis Daignault 07-19-2019 12:12 PM

Re: Really nice bass pic
Walter, we love those. Keep putting them up. Our readers get a feel for the salmon/striper enigma up north. I put your name in for free tickets in the Italian Million Dollar Lottery -- dollar a year for a million years. if you win. :dunno:

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