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Herring monitoring plan
and information for volunteers
(this page added June 4, 2004 with information provided by Stew Sanders)


(This page should be printed in landscape orientation)

Monitoring plan

WHO

DOES WHAT, WHERE

WHEN

WHY

PART I----done, '04

 

 

 

1 volunteer, R Chang

measure water temperature at mouth of brook at Mystic River; look for 48-52 F. for Alewives and then 56-58 for Bluebacks

a) 1 X wk starting Apr. 14

that signals when the monitoring begins and helps distinguish the 2 species

 

 

 

 

PART II----done, '04

 

 

 

Apr.

observe Lower Mystic Lake turbidity, silt, d.o., flow

3 x wk. where fish are reported

to compare conditions of successful area

 

 

 

 

PART III----going on now

see also V below

 

 

4 volunteers

Apr.

May, June -----

·         describe turbidity & bottom

·         describe flow dissolved oxygen

·         note pollutants oxygen demand

·         read measuring rod on side of dock at Winn Brook; record depth

about 2 X wk beginning

mid-April

·         to gather information about conditions for spawning      April, May     DONE

·         water at edge and gravel bottom good

·         water entering, good flow, no odor

·         estimate visibility to about 4'

 

 

 

 

PART IV--May, done

 

 

 

2 volunteers

May, June

have 2

check depth in Wellington Brook from Perch Pond to Brighton St.

If minimum depth is more than 3", add inlet to Claypit Pond CPP to monitoring places

2 x mo.

conditions sufficient in Wellington Brook

April and May

 

 

 

 

PART V---in process

6 volunteers

have 2

 

 

 

 

look for herring and predators

·         Minuteman bikepath bridge-BP

·         Winn Brook culvert Little Pond-WB

·         Spy Pond pipe across "-SPP    "         "       "   *

·         lower & middle Wellington Brk

·          above Perch Pond-LWB

·          Blair Pond to Brighton St-MWB

c) Sun Wed Fri

after report from above re. water temperature

for record of fish movement and numbers

2 visits/wk. April and May done; no fish

 

 

 

 

 

PART VI

when fish are reported, part V

 

 

6 volunteers

May, June ----

have 2

look for eggs and carp

3 X wk when fish are reported at sites listed

to gather information and keep records

 

 

 

 

PART VII

after fish are reported, part V

 

 

4 per site

June-Sept

look for 2" fingerlings

3 x week in any area where eggs are found 

1 x week where fish were active but no eggs seen

to measure spawning success

 

 

Information for volunteers

Who

Does What

When

Where

C. Lawrence 

Describe turbidity and bottom, also flow and pollution smells.

Look for 8”-10” fish with large eyes, protruding lower jaw (river herring)

note approximate number of them and the presence of Herring Gulls and Black-crowned Night-Herons (4)

about 2 / wk

Winn Brook culvert opening at Little Pond (1) and an area about 20’ around the dock there; also look across pond to Spy Pond pipe.

C. Lawrence

Look for herring eggs (2)

And carp (3)

Beginning 1 week after Herring are observed.

About 2 / wk

 

Notes:

(1) Bus 78 from Harvard Square, Blanchard Road becomes Brighton St. in Belmont, crosses railroad tracks; get off opposite Hoitt Rd. (on left) and between the 2nd part of Sandrick Rd. loop and Larch Circle (on the right).  Find public access lot leading to a stone wall at the edge of the pond.

(2) Alewife eggs when fertilized are translucent and about 1 mm in diameter.  Blueback herring eggs are similar but can be adhesive to the substrate. Both eggs settle to the bottom.  Care should be taken when walking around areas with high densities of eggs deposited.  When the eggs die they turn white and can easily be seen on the bottom.

(3)     Look up these in a fish book

(4)     Look these up in bird book, see also Great Black-backed Gull