Distribution of Fishes in the Red River of the North Basin on Multivariate Environmental Gradients

The Species-environment Relationship

Table 7. Data used for correlations among species richness (S) and watershed are (A), stream length (L), and average annual discharge in cubic feet per second (cfs) of 26 streams in the Red River basin. Discharge data were from U.S. Geological Survey (USGS) gauging stations for various years.

Stream S A L Average Annual Discharge

(mi²) (mi) USGS Years (cfs)

Roseau River 44 1570 159 05112000 1917-91 273.0

Two Rivers 29 1112 108 05097500
05094000 1941-51
1929-91 197.3¹

Tamarac River 22 333 41 05091500 1945, 1954² 66.9

Middle River 17 324 46 05087500 1945-91 38.1

Snake River 17 464 43 05088000 1945, 1953-56² 35.9

Clearwater River 49 1370 180 05078500 1909-91 310.0

Red Lake River 62 4600 608 05079000 1901-91 1115.0

Sandhill River 36 484 69 05069000 1943-91 70.6

Wild Rice River, MN 52 1653 211 05064000 1944-91 259.0

Buffalo River 50 1189 150 05062000 1931-91 132.0

Pelican River 50 482 49 05040500 1910-12, 1943-80 79.4

Otter Tail River 69 1561 158 05046000 1931-91 319.0

Rabbit River 18 321 21 05051000 1942-51 36.0

Mustinka River 17 869 62 05049000 1920-24, 1933-36, 1939-1958 48.8

Bois de Sioux River 22 1150 34 05050000 1942-91 80.1

Wild Rice River, ND 23 2233 161 05053000 1932-93 73.7

Rush River 20 304 38 05060500 1946-93 9.4

Maple River 30 1146 155 05059700 1956-93 41.8

Sheyenne River 53 5690 329 05059500 1903-93 180.0

Elm River 22 510 61 05062200 1956-63, 1981 2.2

Goose River 27 1280 186 05066500 1931-93 70.9

Turtle River 27 613 61 05083000 1945-70 50.3

Forest River 32 1016 74 05085000 1944-93 47.1

Park River 34 1010 128 05090000 1931-93 55.2

Tongue River 16 479 33 05101000 1952-82 21.4

Pembina River 32 1870 73 05100000 1903-93 189.0

¹ Average discharge for both gauging stations combined.
² Average discharge for months April - July of each year only.

Stream	S	A	L	Average Annual Discharge
Stream	S	(mi²)	(mi)	USGS	Years	(cfs)
Roseau River	44	1570	159	05112000	1917-91	273.0
Two Rivers	29	1112	108	05097500 05094000	1941-51 1929-91	197.3¹
Tamarac River	22	333	41	05091500	1945, 1954²	66.9
Middle River	17	324	46	05087500	1945-91	38.1
Snake River	17	464	43	05088000	1945, 1953-56²	35.9
Clearwater River	49	1370	180	05078500	1909-91	310.0
Red Lake River	62	4600	608	05079000	1901-91	1115.0
Sandhill River	36	484	69	05069000	1943-91	70.6
Wild Rice River, MN	52	1653	211	05064000	1944-91	259.0
Buffalo River	50	1189	150	05062000	1931-91	132.0
Pelican River	50	482	49	05040500	1910-12, 1943-80	79.4
Otter Tail River	69	1561	158	05046000	1931-91	319.0
Rabbit River	18	321	21	05051000	1942-51	36.0
Mustinka River	17	869	62	05049000	1920-24, 1933-36, 1939-1958	48.8
Bois de Sioux River	22	1150	34	05050000	1942-91	80.1
Wild Rice River, ND	23	2233	161	05053000	1932-93	73.7
Rush River	20	304	38	05060500	1946-93	9.4
Maple River	30	1146	155	05059700	1956-93	41.8
Sheyenne River	53	5690	329	05059500	1903-93	180.0
Elm River	22	510	61	05062200	1956-63, 1981	2.2
Goose River	27	1280	186	05066500	1931-93	70.9
Turtle River	27	613	61	05083000	1945-70	50.3
Forest River	32	1016	74	05085000	1944-93	47.1
Park River	34	1010	128	05090000	1931-93	55.2
Tongue River	16	479	33	05101000	1952-82	21.4
Pembina River	32	1870	73	05100000	1903-93	189.0