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Fish Reports

2001 Report

Table 2.6

Allocation of fish sampling effort among strata in La Grange Pool of the Illinois River during 2001. Table entries are numbers of successfully completed standardized monitoring collections.

Sampling period = 1: June 15–July 31

 

 

Sampling gear	BWCS	BWCO	SCB	MCBU	MCBW	IMPS	IMPO	TRI	TWZ	TOTAL
Day electrofishing	12		14	12					4	42
Fyke net	10								4	14
Large hoop net			8	8					4	20
Small hoop net			8	8					4	20
Mini fyke net	10		8	8					4	30
Night electrofishing			2						4	6
Seine	8		12	12						32
Trawling									8	8
Tandem fyke net		6								6
Tandem mini fyke net		6								6
Subtotal	40	12	52	48	0	0	0	0	32	184

Sampling period = 2: August 1–September 14

 

Sampling gear	BWCS	BWCO	SCB	MCBU	MCBW	IMPS	IMPO	TRI	TWZ	TOTAL
Day electrofishing	12		14	12					4	42
Fyke net	10								4	14
Large hoop net			8	8					4	20
Small hoop net			8	8					4	20
Mini fyke net	10		8	8					4	30
Night electrofishing			2						4	6
Seine	8		12	12						32
Trawling									8	8
Tandem fyke net		6								6
Tandem mini fyke net		6								6
Subtotal	40	12	52	48	0	0	0	0	32	184

Sampling period = 3: September 15–October 31

 

Sampling gear	BWCS	BWCO	SCB	MCBU	MCBW	IMPS	IMPO	TRI	TWZ	TOTAL
Day electrofishing	12		14	12					4	42
Fyke net	10								4	14
Large hoop net			8	8					4	20
Small hoop net			8	8					4	20
Mini fyke net	10		8	8					4	30
Night electrofishing			2						4	6
Seine	8		12	12						32
Trawling									8	8
Tandem fyke net		6								6
Tandem mini fyke net		6								6
Subtotal	40	12	52	48	0	0	0	0	32	184
Total	120	36	156	144	0	0	0	0	96	552

 

Sampling strata:
BWCS - Backwater, contiguous, shoreline
BWCO - Backwater, contiguous, offshore
SCB - Side channel border
MCBU - Main channel border, unstructured
MCBW - Main channel border, wing dam
IMPS - Impounded, shoreline
IMPO - Impounded, offshore
TRI - Tributary mouth
TWZ - Tailwater

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August 26, 2004
Page Last Modified: April 17, 2018