Students

Ice Fisherpersons

Why

1. To experience the sport fishery in Madison lakes

what are they catching

how much,

where are they fishing

how are they fishing

2. To see where common fish species are in the lakes

3. Obtain practical training in working with fish, fish data, and report writing

Madison Lakes field trip, 10 February 2007

Sign up for 2 time slots: 8am-12pm or 1pm-5pm

1. Survey the anglers

Meet at the CFL and pair up

Go to a ice fishing location

Survey 5-10 anglers

2. Come back at the Center For Limnology to Age Fish

3. Use all the data collected by the class to write a report about the ice fishery on the Madison lakes!

Three Main Parts

It can be a big fishery.....close to shore!It can be a big fishery.....close to shore!

Or scattered all over the middle of the lake!Or scattered all over the middle of the lake!

Quick transportation....these people areQuick transportation....these people are serious about their ice fishingserious about their ice fishing

University Bay can be the spot!University Bay can be the spot!

They can be all by themselvesThey can be all by themselves

A A couple couple places places we’ll we’ll try... try... maybe maybe othersothers

What You’ll Need:What You’ll Need:•Pencils (not pens!)

•Pocket knife or Scissors & forceps (tweezers)

•12” Plastic ruler with metric(!!) scale

WARM CLOTHING – ESPECIALLY BOOTS

Zoology 510 - Madison Lakes I ce Fishing Survey - 2007

Date:_______________ I nterviewer's Name:_____________________________________

Lake:_______________ Data Recorder's Name:___________________________________

% Cloud Cover:_________

Angler Survey : General I nformation Species # Caught

Time of I nquiry: _______ Number of Lines:_______

Time Start Fishing:_______ Type of Gear:___________________________

Time Fishing Total:_______ Type of Bait:__________________________

Total depth of water where fishing:_________feet

Water depth where fish are biting:_________feet

Quantitative Data About Catch

Species Total Length Sex Scale Evelope # Age

Comments:

Bluegill or

CrappieTake scales f rom hereYellow

perch

Remember, squeeze tail f or total length!

Fill out a new data sheet for every interview!

Fill in all parts!

Write neatly!

Be courteousBe courteous1. “Hi, we’re from the University and 1. “Hi, we’re from the University and we’re taking a survey for our we’re taking a survey for our Ecology of Fish class” Ecology of Fish class”

2. “Would it be ok if we asked you 2. “Would it be ok if we asked you some questions about the fishing some questions about the fishing and took some scale samples?”and took some scale samples?”

= NOT the D.N.R.= NOT the D.N.R.

Important, cause they are sitting Important, cause they are sitting on their fish.on their fish.

Zoology 510 - Madison Lakes I ce Fishing Survey - 2007

Date:_______________ I nterviewer's Name:_____________________________________

Lake:_______________ Data Recorder's Name:___________________________________

% Cloud Cover:_________

Angler Survey : General I nformation Species # Caught

Time of I nquiry: _______ Number of Lines:_______

Time Start Fishing:_______ Type of Gear:___________________________

Time Fishing Total:_______ Type of Bait:__________________________

Total depth of water where fishing:_________feet

Water depth where fish are biting:_________feet

Quantitative Data About Catch

Species Total Length Sex Scale Evelope # Age

Comments:

Yellow

perch

FILL THIS OUT BEFORE THE INTERVIEW

ASK THE ANGLERS THIS PART FIRST

ZEROS ARE IMPORTANT DATA POINTS

FILL IN EVERY SPACE

IF THEY DON”T GIVE AN ANSWER WRITE “No Answer”

Good RulerGood Ruler

Bad Ruler!Bad Ruler!

Bluegill or

CrappieTake scales from hereYellow

perch

Remember, squeeze tail for total length!

Use a knife or forceps (tweezers)Use a knife or forceps (tweezers)Get at least 3-4 scalesGet at least 3-4 scalesMake sure they get in the envelopMake sure they get in the envelopLABEL THE ENVELOP!!!!LABEL THE ENVELOP!!!!

Monona Bay

BLG

182 mm

02

10

2007

Weidel - 3

To Sex Fish:

Start at the anal vent, cut shallow!

♀ ♂

RedYellow

Granular(eggs)

WhiteNo cleartextureMALE

FEMALE

1. Come back at the Center For Limnology to Age Fish

2. Check your data sheets and scale envelops

Make sure all the sections are filled out

Double check that data from scale envelop = data sheet

Did you write neatly...? If not fix it now!

3. Prepare and interpret the ages of your fish from scales

Sonicate the scales and clean them

Place 3-5 scales between two glass slides

Clip the slides together and put them under the microscope

Interpret the ages and write them on the data sheet

Back at the Lab:

Prepare and Clean Scales

Put them between 2 microscope slides and pinch them with the clips

Interpret them with a microscope

Focus

Annulus

Circuli

One Year’s Growth

Aging the fish

Little Rock LakeYellow Perch135 mmAge 2+

First Annulus

Second Annulus

Stories to Ask Kitchell About!-the Busch Boys-the Minocqua guide-the lost boot-bratwurst and a bus trip-it’s the DNR’s fault, -it’s the UW’s fault, and the evidence is right down here through this hole! Take a

look.