Area: West Branch Sheepscot, Topic: Fish: Electrofishing - Salmon Density in W Br at Weeks Mills 1968-1983; -- KRIS Information System -- KRIS Information System

Area	West Branch Sheepscot
Topic	Fish: Electrofishing - Salmon Density in W Br at Weeks Mills 1968-1983

Caption: The Chart Table "fish_efish_sheep_asc_58_01_density_11westbr20.77.db" was derived from the Source Table "fish_efish_sheep_asc_58_03_density_source.db" by filtering on the TripNo field. It contains Atlantic salmon densities calculated from electrofishing surveys in the West Branch Sheepscot River at Weeks Mills (river kilometer 20.77) from 1968 to 2001. The Maine Atlantic Salmon Commission (ASC) assembled the data and calculated density estimates. Most column headings begin with data type, followed by a suffix denoting whether the data in a column is for "Parr" or "YOY". A key to column headings: Date = Date of survey, TripNo = A unique identifier for each survey (SITECODE combined with survey date), LifeStage_ = Life Stage record applies to, Density_ = Point estimate of density, Dens95Low_ = 95% confidence interval - lower bound of point estimate density, Dens95High_ = 95% confidence interval - upper bound of point estimate density, Dens95LowWhisker_ = Density_ minus Dens95Low_ (lower whisker on chart), Dens95HighWhisker_ = Dens95High_ minus Density_ (upper whisker on chart), PopEstimate_ = Point estimate of salmon present in sample site (N) 95%Low_ = 95% confidence interval - lower bound of point estimate 95%High_ = 95% confidence interval - upper bound of point estimate, StandardError_ = Standard error of the population estimate (SE), CaptureProbability_ = Estimate capture probability (p); TotalCatch_ = Sum of catches for all runs (T), Method_ = Type of abundance estimator used.

50 rows of a possible 86 have been displayed.

Date TripNo Density_Parr Dens95Low_Parr Dens95High_Parr Dens95LowWhisker_Parr Dens95HighWhisker_Parr PopEstimate_Parr 95%Low_Parr 95%High_Parr StandardError_Parr CaptureProbability_Parr TotalCatch_Parr Method_Parr Density_Yoy Dens95Low_Yoy Dens95High_Yoy Dens95LowWhisker_Yoy Dens95HighWhisker_Yoy PopEstimate_Yoy 95%Low_Yoy 95%High_Yoy StandardError_Yoy CaptureProbability_Yoy TotalCatch_Yoy Method_Yoy

8/13/1968 11WESTBR20.77-19680813 19.8595 15.972 23.7471 3.8875 3.8876 132.8205 106.8205 158.8205 13.5795 -99 103 Petersen 25.4187 25.4187 -14.8026 0 -40.2213 170 170 -99 -99 0.0614 170 TotalCatch

8/12/1969 11WESTBR20.77-19690812 17.494 11.0646 25.6896 6.4294 8.1956 117 74 171.812 27.9653 0.3895 74 2ML 1.6447 1.4952 2.0624 0.1495 0.4177 11 10 13.7931 1.4251 0.625 10 2ML

9/1/1970 11WESTBR20.77-19700901 9.5694 8.2237 11.0646 1.3457 1.4952 64 55 74 5.3333 -99 55 Petersen 20.933 18.0944 23.7717 2.8386 2.8387 140 121.0152 158.9848 9.6861 0.6269 121 2ML

8/11/1971 11WESTBR20.77-19710811 22.1071 17.5781 26.6361 4.529 4.529 122.0312 97.0312 147.0312 13.2361 -99 92 Petersen 3.6232 3.2609 4.4317 0.3623 0.8085 20 18 24.4631 2.2771 0.6429 18 2ML

8/30/1972 11WESTBR20.77-19720830 5.3828 4.8445 6.2598 0.5383 0.877 50 45 58.1467 4.1565 0.6716 45 2ML 0 0 0 0 0 0 0 0 0 1 0 2ML

9/4/1973 11WESTBR20.77-19730904 1.1962 1.1962 1.1962 0 0 8 8 8 0 0.8889 8 2ML 56.3696 51.0174 61.7218 5.3522 5.3522 377 341.2047 412.7953 18.2629 0.6095 320 2ML

8/21/1974 11WESTBR20.77-19740821 26.6576 20.3776 32.9375 6.28 6.2799 178.2857 136.2857 220.2857 21.7369 -99 121 Petersen 52.926 52.926 -14.8026 0 -67.7286 353.9693 353.9693 -99 -99 0.2709 308 TotalCatch

9/9/1976 11WESTBR20.77-19760909 17.2249 13.3493 21.1005 3.8756 3.8756 160 124 196 18.8317 -99 111 Petersen 36.0646 25.7719 46.3572 10.2927 10.2926 335 239.3928 430.6072 48.7792 0.4075 218 2ML

9/7/1983 11WESTBR20.77-19830907 13.8791 12.8586 14.9194 1.0205 1.0403 136 126 146.1939 5.2009 0.5753 126 3ML 0 0 0 0 0 0 0 0 0 1 0 3ML

8/28/1984 11WESTBR20.77-19840828 3.8266 3.8266 3.8266 0 0 17 17 17 0 0.9444 17 3ML 3.8266 3.6015 4.4166 0.2251 0.59 17 16 19.621 1.3372 0.5517 16 3ML

8/2/1989 11WESTBR20.77-19890802 2.4155 2.4155 2.4155 0 0 10 10 10 0 0.7692 10 3ML 26.8116 23.1884 30.5405 3.6232 3.7289 111 96 126.4378 7.8764 0.48 96 3ML

9/27/1990 11WESTBR20.77-19900927 12.3188 12.0773 12.8936 0.2415 0.5748 51 50 53.3793 1.2139 0.7042 50 3ML 17.8744 16.4251 19.803 1.4493 1.9286 74 68 81.9846 4.0738 0.5574 68 3ML

9/1/1992 11WESTBR20.77-19920901 41.3807 35.5271 47.2344 5.8536 5.8537 169.661 145.661 193.661 12.6788 -99 140 Petersen - - - - - - - - - - - -

8/30/1993 11WESTBR20.77-19930830 6.4286 6.4286 6.4286 0 0 18 18 18 0 0.72 18 3ML 0 0 0 0 0 0 0 0 0 1 0 3ML

9/28/1995 11WESTBR20.77-19950928 0 0 0 0 0 0 0 0 0 1 0 2ML 7.8784 7.106 9.1422 0.7724 1.2638 51 46 59.1811 4.174 0.6765 46 2ML

8/23/1996 11WESTBR20.77-19960823 5.7157 5.4067 6.3206 0.309 0.6049 37 35 40.916 1.9979 0.5932 35 3ML 0.309 0.309 0.309 0 0 2 2 2 0 1 2 3ML

9/23/1998 11WESTBR20.77-19980923 0.4762 0.4762 0.4762 0 0 2 2 2 0 0.6667 2 3ML 0 0 0 0 0 0 0 0 0 1 0 3ML

8/16/2000 11WESTBR20.77-20000816 10.4858 10.0198 11.378 0.466 0.8922 45 43 48.8287 1.9534 0.6232 43 3ML 15.3792 13.9811 17.2628 1.3981 1.8836 66 60 74.0832 4.1241 0.5357 60 3ML

9/19/2001 11WESTBR20.77-20010919 2.2836 2.2836 2.2836 0 0 7 7 7 0 1 7 2ML 0 0 0 0 0 0 0 0 0 1 0 2ML

9/9/2002 11WESTBR20.77-20020909 0.3257 0.3257 0.3257 0 0 1 1 1 0 0.5 1 3ML 30.2932 26.3844 34.7077 3.9088 4.4145 93 81 106.5527 6.9146 0.488 81 3ML

9/11/2003 11WESTBR20.77-20030911 14.1414 14.1414 14.1414 0 0 28 28 28 0 0.9032 28 2ML 49.4949 33.3333 70.3987 16.1616 20.9038 98 66 139.3895 21.1171 0.4231 66 2ML

To learn more about this topic click Info Links .

To view additional information (data source, aquisition date etc.) about this page, click Metadata .
To download the table with the chart's data, click fish_efish_sheep_asc_58_01_density_11westbr20.77.db (size 18,432 bytes)
To download the table with the chart's data as an Excel spreadsheet, click fish_efish_sheep_asc_58_01_density_11westbr20.77.db.xls (size 14,082 bytes) .
To view the table with the chart's source data, click Source Table web page.
To download the table with the chart's source data, click fish_efish_sheep_asc_58_03_density_source.db (size 34,816 bytes)
To download the table with the chart's source data as an Excel spreadsheet, click fish_efish_sheep_asc_58_03_density_source.db.xls (size 45,566 bytes)

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Date	TripNo	Density_Parr	Dens95Low_Parr	Dens95High_Parr	Dens95LowWhisker_Parr	Dens95HighWhisker_Parr	PopEstimate_Parr	95%Low_Parr	95%High_Parr	StandardError_Parr	CaptureProbability_Parr	TotalCatch_Parr	Method_Parr	Density_Yoy	Dens95Low_Yoy	Dens95High_Yoy	Dens95LowWhisker_Yoy	Dens95HighWhisker_Yoy	PopEstimate_Yoy	95%Low_Yoy	95%High_Yoy	StandardError_Yoy	CaptureProbability_Yoy	TotalCatch_Yoy	Method_Yoy
8/13/1968	11WESTBR20.77-19680813	19.8595	15.972	23.7471	3.8875	3.8876	132.8205	106.8205	158.8205	13.5795	-99	103	Petersen	25.4187	25.4187	-14.8026	0	-40.2213	170	170	-99	-99	0.0614	170	TotalCatch
8/12/1969	11WESTBR20.77-19690812	17.494	11.0646	25.6896	6.4294	8.1956	117	74	171.812	27.9653	0.3895	74	2ML	1.6447	1.4952	2.0624	0.1495	0.4177	11	10	13.7931	1.4251	0.625	10	2ML
9/1/1970	11WESTBR20.77-19700901	9.5694	8.2237	11.0646	1.3457	1.4952	64	55	74	5.3333	-99	55	Petersen	20.933	18.0944	23.7717	2.8386	2.8387	140	121.0152	158.9848	9.6861	0.6269	121	2ML
8/11/1971	11WESTBR20.77-19710811	22.1071	17.5781	26.6361	4.529	4.529	122.0312	97.0312	147.0312	13.2361	-99	92	Petersen	3.6232	3.2609	4.4317	0.3623	0.8085	20	18	24.4631	2.2771	0.6429	18	2ML
8/30/1972	11WESTBR20.77-19720830	5.3828	4.8445	6.2598	0.5383	0.877	50	45	58.1467	4.1565	0.6716	45	2ML	0	0	0	0	0	0	0	0	0	1	0	2ML
9/4/1973	11WESTBR20.77-19730904	1.1962	1.1962	1.1962	0	0	8	8	8	0	0.8889	8	2ML	56.3696	51.0174	61.7218	5.3522	5.3522	377	341.2047	412.7953	18.2629	0.6095	320	2ML
8/21/1974	11WESTBR20.77-19740821	26.6576	20.3776	32.9375	6.28	6.2799	178.2857	136.2857	220.2857	21.7369	-99	121	Petersen	52.926	52.926	-14.8026	0	-67.7286	353.9693	353.9693	-99	-99	0.2709	308	TotalCatch
9/9/1976	11WESTBR20.77-19760909	17.2249	13.3493	21.1005	3.8756	3.8756	160	124	196	18.8317	-99	111	Petersen	36.0646	25.7719	46.3572	10.2927	10.2926	335	239.3928	430.6072	48.7792	0.4075	218	2ML
9/7/1983	11WESTBR20.77-19830907	13.8791	12.8586	14.9194	1.0205	1.0403	136	126	146.1939	5.2009	0.5753	126	3ML	0	0	0	0	0	0	0	0	0	1	0	3ML
8/28/1984	11WESTBR20.77-19840828	3.8266	3.8266	3.8266	0	0	17	17	17	0	0.9444	17	3ML	3.8266	3.6015	4.4166	0.2251	0.59	17	16	19.621	1.3372	0.5517	16	3ML
8/2/1989	11WESTBR20.77-19890802	2.4155	2.4155	2.4155	0	0	10	10	10	0	0.7692	10	3ML	26.8116	23.1884	30.5405	3.6232	3.7289	111	96	126.4378	7.8764	0.48	96	3ML
9/27/1990	11WESTBR20.77-19900927	12.3188	12.0773	12.8936	0.2415	0.5748	51	50	53.3793	1.2139	0.7042	50	3ML	17.8744	16.4251	19.803	1.4493	1.9286	74	68	81.9846	4.0738	0.5574	68	3ML
9/1/1992	11WESTBR20.77-19920901	41.3807	35.5271	47.2344	5.8536	5.8537	169.661	145.661	193.661	12.6788	-99	140	Petersen	-	-	-	-	-	-	-	-	-	-	-	-
8/30/1993	11WESTBR20.77-19930830	6.4286	6.4286	6.4286	0	0	18	18	18	0	0.72	18	3ML	0	0	0	0	0	0	0	0	0	1	0	3ML
9/28/1995	11WESTBR20.77-19950928	0	0	0	0	0	0	0	0	0	1	0	2ML	7.8784	7.106	9.1422	0.7724	1.2638	51	46	59.1811	4.174	0.6765	46	2ML
8/23/1996	11WESTBR20.77-19960823	5.7157	5.4067	6.3206	0.309	0.6049	37	35	40.916	1.9979	0.5932	35	3ML	0.309	0.309	0.309	0	0	2	2	2	0	1	2	3ML
9/23/1998	11WESTBR20.77-19980923	0.4762	0.4762	0.4762	0	0	2	2	2	0	0.6667	2	3ML	0	0	0	0	0	0	0	0	0	1	0	3ML
8/16/2000	11WESTBR20.77-20000816	10.4858	10.0198	11.378	0.466	0.8922	45	43	48.8287	1.9534	0.6232	43	3ML	15.3792	13.9811	17.2628	1.3981	1.8836	66	60	74.0832	4.1241	0.5357	60	3ML
9/19/2001	11WESTBR20.77-20010919	2.2836	2.2836	2.2836	0	0	7	7	7	0	1	7	2ML	0	0	0	0	0	0	0	0	0	1	0	2ML
9/9/2002	11WESTBR20.77-20020909	0.3257	0.3257	0.3257	0	0	1	1	1	0	0.5	1	3ML	30.2932	26.3844	34.7077	3.9088	4.4145	93	81	106.5527	6.9146	0.488	81	3ML
9/11/2003	11WESTBR20.77-20030911	14.1414	14.1414	14.1414	0	0	28	28	28	0	0.9032	28	2ML	49.4949	33.3333	70.3987	16.1616	20.9038	98	66	139.3895	21.1171	0.4231	66	2ML