Anglers in New York and Connecticut, as well as New Jersey,
are going to see tougher fluke regulations next year.
For the past six years, fluke have had relatively poor
spawning success. As a result, the National
Marine Fisheries Service will reduce the 2017 annual catch limit by 30%. That, in itself, would impact regulations,
and the fact that, coastwide, anglers seem to be landing more fish than they
had in 2015 is going to mean that regulations will have to be tightened a
little more.
The big question is how much landings in those states will
have to be cut.
If the Atlantic States Marine Fisheries Commission continues
with a regional management system, in which Connecticut, New York and most of
New Jersey fish under the same set of rules, things will be bad enough. However, if the regional management system is
discarded, and a state-by-state management system put back in place (something
that, hopefully, will not occur) the cuts in New York and Connecticut will be
extremely severe.
NMFS
estimates that, during the first eight months of this year, New York
anglers harvested more than 710,000 summer flounder—nearly twice the 368,000
landed during the same period last year.
Proportionately, Connecticut did even worse, with 2016 landings through
August 2016 more than 250% of what they were for the first eight months of
2015. However, in a regional management
system, New Jersey’s 2016 landings provide a sort of buffer, with the 615,000
fish landed this year only about one-third higher than were landed, for the
same 8-month period, in the year before.
Before going much farther, it
probably makes sense to remind folks of how those recreational landings were calculated.
NMFS estimates of recreational harvest result from a
combination of two different processes.
The first is the estimate of catch, which results from in-person
interviews.
“Interviews are conducted in person by trained staff, and the
sites and dates are selected by a proportional random selection process such
that those sites that have the most activity will be sampled most often…
“From these angler interviews a catch per trip (catch rate)
estimate is made for each type of fish encountered, either observed or
reported. These weighted [catch per unit
effort] estimates are combined with the weighted effort estimates by sampling
stratum to produce the catch and harvest estimates.”
Calculating the catch per trip is pretty straightforward. NMFS just needs to look into enough coolers
to get a good sample, and divide the total number of fish of each species by
the number of samples taken. If, say, they interview 25 people, who put
a total of 30 fluke on ice, the average number of fluke landed per trip is 1.2
(there’s a little bit more statistical work than that involved, but for now, I’m
keeping it simple).
Multiply that 1.2 fluke per trip by the number of trips made by the entire angling community, and you come up
with a number that should be pretty
close to the actual landings.
Of course, first you have to figure out how many trips were actually made.
To do that, NMFS traditionally used the Coastal
Household Telephone Survey, in which
“Data collection occurs during a two-week period at the end
of each two-month sample period (or “wave”)…
“The [survey] uses a computer-assisted random digit dialing
(RDD) approach to contact full-time residential households. Contacted households are screened to
determine if any household members participated in marine recreational fishing
during the previous two months, and each active angler is asked to recall the
number of saltwater fishing trips that were taken during the wave, as well as provide
details about each trip. Institutional
housing, businesses, wireless phones, and pay phones are excluded from the
survey. Within each state, sample is
allocated among coastal counties in proportion to household populations.
“Data from the [survey] are used to estimate the average
number of trips per household for each coastal county. These estimates are then expanded by the
county household population to estimate total trips. County estimates are summed and then expanded…to
produce state-level effort estimates.”
We happen to be in one of those two-week periods at the end
of each wave when samples are taken, so answer quickly—no time to go check your log--how
many times did you go fishing in September and October?
Are you sure?
You know what you did last weekend, and the weekend before, but some of
those other trips…Did you really take them all in early September, or were some
from late August..?
And that’s the problem with the effort part of the
survey. Sometimes memories get, let’s
say, just a little fuzzy…
And that’s a real problem, because effort has a real impact
on estimates of recreational catch.
Remember those 710,000 fluke that New York anglers caught in
the first eight months of this year? It
turns out that about 610,000 of them were caught by anglers fishing from
private boats, and most of those—about 470,000—were caught in Wave 4, July and
August.
Nearly 320,000 of the 368,000 fluke that New York anglers
caught in the first eight months of last year were caught by private boat
anglers, too, but Wave 4 accounted for a little less than half of them—only about 150,000
fish. Had Wave 4 produced as many fluke
for private boat anglers in 2015 as it did this season, there wouldn’t have
been much of a difference in landings between the two years at all.
Thus, the big question is: WHY was Wave 4 harvest so much
bigger this year? And the a big part of
the answer to that question is EFFORT.
In 2015, New
York’s private boat anglers made slightly fewer than 500,000 fishing trips
during Wave 4; this year, that number nearly doubled, to more than
950,000. It shouldn’t surprise everyone
if the number of fluke landed during Wave 4 doubled as well.
In fact, landings actually tripled during that period, so
factors other than effort also played a role.
But there can be little doubt that when fishermen make twice as many
trips as they did the year before, the number of fish landed is going to
increase. A lot.
In the back of my mind, I can already hear the objections to
upcoming harvest reductions. Someone—more
likely many someones—will get up at meetings and declaim that “There’s no way New York anglers caught triple the fluke this July and August that they caught during
the same time last year.” And if someone
shows them the effort numbers, they’ll continue to object, saying “And there’s
no way that people made twice as many trips this summer than they made
last year."
And when they say that, they may very well be right, just
not in the way that they intended.
Over the past 10 years, New York anglers averaged somewhere
around 1 million saltwater fishing trips during the months of July and
August. That figure peaked at more than
1,500,000 trips in 2008, and is trending down somewhat, but only dropped below
900,000 twice in the last decade—once in 2013, when it fell to around 750,000
trips, and last season, when it dropped to less than 500,000.
Thus, if there was any error in the effort estimates, it’s
likely that the error involved undercounting the number of trips taken in
2015. The 950,000 trips estimated for
this July and August represented a return to the norm, rather than a gross
deviation.
But in other years, effort has seemed unreasonably high. It’s just a very difficult figure to pin down
with any confidence.
Fortunately, NMFS is taking steps to improve effort
estimates. The telephone survey, which
randomly targets households in coastal counties, is being replaced by a new Fishing
Effort Survey that will mail written surveys, primarily to households where
anglers are known to live. Time
and resources will no longer be wasted contacting households where no one fishes; the far
higher percentages of positive responses will, in and of itself, substantially
reduce the error from that inherent in the phone survey.
In addition, by
employing mail rather than a telephone call, anglers will be better able to
provide accurate information about the number of trips taken, using their logs
and other aids to memory not available during the course of a brief phone
conversation.
The new survey should be fully in place by the 2018 season.
In the meantime, anglers concerned with the accuracy of
catch estimates should be reassured by the fact that NMFS is making a serious
effort to get the effort data right.
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