Freshwater is a vital and scarce resource on our planet with only 3% of the water on Earth being freshwater rivers and lakes, the rest being oceans. Freshwater rivers and lakes are formed when hollows are made in the Earth, such as when land collapses after a magma flow allowing for rainwater or melted snow to flow through and accumulate in the empty space. However, even though freshwater biomes are not expansive, they are still home to over 100,000 different species of plants and animals. Many amphibian species, such as turtles, frogs, and alligators, live in freshwater biomes. Mammals, such as otters and beavers, live in freshwater biomes too, with many more mammals stopping by a river or lake for a drink.

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7”-9” | 17.8-22.9 cm
5’-6.5’ | 1.5-2 m
50-125 lb | 22.7-56.7 kg
20-50 years
Alligator Gar
22.900
200.000
56.700
50.00
72000
3D
Alligator Gar
8.5”-11.5” | 21.6-29.2 cm
5’-7’ | 1.52-2.13 m
60-200 lb | 27-91 kg
20-30 years
American Paddlefish
29.200
213.000
91.000
30.00
21000
3D
American Paddlefish
5”-6.75” | 12.7-17.1 cm
19”-24” | 48-61 cm
3-8 lb | 1.4-3.6 kg
6-10 years
American Shad
17.100
61.000
3.600
10.00
4500
3D
American Shad
2.5”-4” | 6.4-10.2 cm
12”-20” | 30.5-51 cm
2-4 lb | .9-1.8 kg
5-10 years
Arctic Grayling
10.200
51.000
1.800
10.00
3500
3D
Arctic Grayling
6.5”-9” | 16.5-22.9 cm
28”-40” | 71-102 cm
8-12 lb | 3.6-5.4 kg
5-13 years
Atlantic Salmon
22.900
102.000
5.400
13.00
13000
3D
Atlantic Salmon
1.5”-3.75” | 3.8-9.5 cm
4”-11” | 10-28 cm
3-4 lb | 1.4-1.8 kg
7-15 years
Black Crappie
9.500
28.000
1.800
15.00
6800
3D
Black Crappie
3”-6.5” | 7.6-16.5 cm
7”-16” | 18-41 cm
1-2.6 lb | .5-1.2 kg
5-10 years
Bluegill
16.500
41.000
1.200
10.00
33000
3D
Bluegill
2”-5.5” | 5-14 cm
10”-26” | 25-66 cm
.6-6.6 lb | .3-3 kg
5-15 years
Brook Trout
14.000
66.000
3.000
15.00
24000
3D
Brook Trout
5”-7” | 12.7-17.8 cm
24”-34” | 61-86 cm
3-9 lb | 1.4-4 kg
5-12 years
Bull Trout
17.800
86.000
4.000
12.00
5600
3D
Bull Trout
2”-4.5” | 5-11.4 cm
12”-24” | 30.5-61 cm
2-7 lb | .9-3.2 kg
15-25 years
Channel Catfish
11.400
61.000
3.200
25.00
19000
3D
Channel Catfish
5.5”-8.5” | 14-21.6 cm
24”-36” | 61-91 cm
30-40 lb | 13.6-18.1 kg
5-9 years
Chinook Salmon
21.600
91.000
18.100
9.00
17000
3D
Chinook Salmon
6”-10” | 15.2-25.4 cm
24”-40” | 61-102 cm
8-22 lb | 3.6-10 kg
3-7 years
Chum Salmon
25.400
102.000
10.000
7.00
6200
3D
Chum Salmon
4.5”-7.5” | 11.4-19 cm
18”-30” | 46-76 cm
8-35 lb | 3.6-16 kg
2-4 years
Coho Salmon
19.000
76.000
16.000
4.00
20000
3D
Coho Salmon
54.0"-78.0" (4’6"-6'6") | 1.4-2 m
114.0"-168.0" (9’6"-14’) | 2.9-4.3 m
3,100-8,800 lb | 1,500-4,000 kg
40-50 years
Hippopotamus
200.000
430.000
4000.000
50.00
84000
3D
Hippopotamus
5.5”-11” | 14-28 cm
36”-72” | 91-183 cm
30-100 lb | 13.6-45.4 kg
55-150 years
Lake Sturgeon
28.000
183.000
45.400
150.00
7300
3D
Lake Sturgeon
4”-7” | 10.2-17.8 cm
20”-36” | 51-91 cm
4-22 lb | 1.8-10 kg
10-40 years
Lake Trout
17.800
91.000
10.000
40.00
14000
3D
Lake Trout
4”-8” | 10.2-20.3 cm
15”-30” | 38-76 cm
1.8-30 lb | .8-13.6 kg
15-20 years
Largemouth Bass
20.300
76.000
13.600
20.00
42000
3D
Largemouth Bass
3.5”-6.5” | 8.9-16.5 cm
28”-48” | 71-122 cm
10-40 lb | 4.5-18.1 kg
15-30 years
Muskellunge
16.500
122.000
18.100
30.00
10000
3D
Muskellunge
Muskrat
106000
4.5”-6.7” | 11.5-17 cm
10”-15” | 25-38 cm
1.5-4.5 lb | .7-2 kg
2-4 years (wild); up to 10 years (captivity)
Muskrat
17.000
38.000
2.000
10.00
106000
3D
Muskrat
14.2”-16.9” | 36-43 cm
29”-35” | 74-89 cm
25-75 lb | 11.3-34 kg
10-15 years (wild); 15-25 years (captivity)
North American Beaver
43.000
89.000
34.000
25.00
3500
3D
North American Beaver
2.25”-3.75” | 5.7-9.5 cm
16”-26” | 41-66 cm
1.5-4 lb | .7-1.8 kg
10-25 years
Northern Pike
9.500
66.000
1.800
25.00
30000
3D
Northern Pike
4.5”-7” | 11.4-17.8 cm
20”-30” | 51-76 cm
2-8 lb | .9-3.6 kg
4-11 years
Rainbow Trout
17.800
76.000
3.600
11.00
19000
3D
Rainbow Trout
14’-23’ | 4.25-7 m (Male); 7.5’-11’ | 2.30-3.35 m (Female)
880-2200 lb | 400-1000 kg (Male); 180-220 lb | 82-100 kg (Female)
70-100 (wild); 100-120 (captivity)
Saltwater Crocodile
700.000
1000.000
120.00
31000
3D
Saltwater Crocodile
2.5”-6.5” | 6.4-16.5 cm
10”-27” | 25-69 cm
.8-12 lb | .4-5.4 kg
5-15 years
Smallmouth Bass
16.500
69.000
5.400
15.00
26000
3D
Smallmouth Bass
5.5”-15.5” | 14-39.4 cm
20”-55” | 51-140 cm
5-70 lb | 2.3-32 kg
20-30 years
Striped Bass
39.400
140.000
32.000
30.00
32000
3D
Striped Bass
Walleye
58000
4.5”-8.5” | 11.4-21.6 cm
22”-42” | 56-107 cm
3-7 lb | 1.4-3.2 kg
15-25 years
Walleye
21.600
107.000
3.200
25.00
58000
3D
Walleye
2.5”-5.5” | 6.4-14 cm
10”-18” | 25-46 cm
2-5 lb | .9-2.3 kg
4-9 years
White Bass
14.000
46.000
2.300
9.00
15000
3D
White Bass
1”-2.5” | 2.5-6.4 cm
4”-10” | 10-25 cm
.5-1 lb | .2-.5 kg
7-13 years
Yellow Perch
6.400
25.000
0.500
13.00
12000
3D
Yellow Perch
American Shad

The American Shad (Alosa sapidissima) is a fish loved for three primary reasons. First, for its roe. Second for its meat rich in omega-3 fatty acid and third, for recreational purposes like sport fishing and the annual shad festival. The fish inhabits the coastal waters of North America preferring to spend most of its time in the Atlantic ocean and only migrate to freshwater when it wants to spawn. The American Shad is also called Atlantic shad, herring jacks, or Potomac shad. They are classified under the family Clupeidae and recognized by their distinct keel on the belly, moderately compressed bodies, and sharp saw-like scales.

American Shad have a total length between 19”-24” (48-61 cm), body height of 5”-6.75” (12.7-17.1 cm), and an overall weight in the range of 3-8 lb (1.4-3.6 kg). The typical lifespan of the American Shad is 6-10 years.

Scaled collection of drawings of American Shad in front and side poses
The American Shad (Alosa sapidissima) is a fish loved for three primary reasons. First, for its roe. Second for its meat rich in omega-3 fatty acid and third, for recreational purposes like sport fishing and the annual shad festival. The fish inhabits the coastal waters of North America.

American Shad have a total length between 19”-24” (48-61 cm), body height of 5”-6.75” (12.7-17.1 cm), and an overall weight in the range of 3-8 lb (1.4-3.6 kg). The typical lifespan of the American Shad is 6-10 years.

Scaled collection of drawings of American Shad in front and side poses
American Shad
Height:
5”-6.75” | 12.7-17.1 cm
Width:
Length:
19”-24” | 48-61 cm
Depth:
Weight:
3-8 lb | 1.4-3.6 kg
Area:
Scientific Name
Alosa sapidissima
Lifespan
6-10 years

Drawings include:

American Shad side elevation, front

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Saltwater Crocodile
Dimensioned size comparison illustration of a Saltwater Crocodile compared to an average person

The Saltwater Crocodile, also known as the estuarine crocodile, Indo-Pacific crocodile, marine crocodile, sea crocodile, and saltie, is one of the largest living crocodiles. It is native to saltwater habitats and brackish wetlands including India’s east coast across Southeast Asia and the Sundaic region to northern Australia and Micronesia. The saltwater crocodile was hunted for its skin up until the 1970s, and today it is listed as least concern on the IUCN Red List. The species are hypercarnivorous apex predators, and they can overtake almost any animal that enters their territory. Saltwater crocodiles range in color with some retaining pale skin, while others may be so dark to appear black.

The typical male Saltwater Crocodile has an overall length of 14’-23’ (4.25-7 m), with females at lengths of 7.5’-11’ (2.30-3.35 m). An average male Saltwater Crocodile weighs between 880-2200 lb (400-1000 kg) and has a typical lifespan of 70-100 years in the wild.

Aerial plan view drawing of a Saltwater Crocodile walking
The Saltwater Crocodile is one of the largest living crocodiles. Saltwater Crocodiles are native to saltwater habitats and are hypercarnivorous apex predators, that can overtake almost any animal that enters their territory. Saltwater crocodiles range in color from pale to dark skin.

The typical male Saltwater Crocodile has an overall length of 14’-23’ (4.25-7 m), with females at lengths of 7.5’-11’ (2.30-3.35 m). An average male Saltwater Crocodile weighs between 880-2200 lb (400-1000 kg) and has a typical lifespan of 70-100 years in the wild.

Aerial plan view drawing of a Saltwater Crocodile walking
Saltwater Crocodile
Height:
Width:
Length:
14’-23’ | 4.25-7 m (Male); 7.5’-11’ | 2.30-3.35 m (Female)
Depth:
Weight:
880-2200 lb | 400-1000 kg (Male); 180-220 lb | 82-100 kg (Female)
Area:
Speed
15-18 mph | 24-29 km/h
Scientific Name
Crocodylus porosus
Lifespan
70-100 (wild); 100-120 (captivity)

Drawings include:
Saltwater Crocodile side elevation, side (person), plan

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Striped Bass
Dimensioned comparison drawing of the Striped Bass compared to an average person

The Striped Bass (Morone saxatilis), also called the Atlantic striped bass, rockfish, lineside, and striper, belong to the family Moronidae and are very significant in sport fishing. The Striped bass are anadromous, spawning in freshwater bodies of North America and live off the Atlantic coast.

They are highly identified by their silvery bodies having continuous dark lines running along its metallic sides. Striped Bass are the most common sport fish in Chesapeake Bay and are easily identified by their white underside and upper stripes. The fish can be hybridized with other species like the white bass and its flesh can be consumed raw or pickled.

Striped Basss have a total length between 20”-55” (51-140 cm), body height of 5.5”-15.5” (14-39.4 cm), and an overall weight in the range of 5-70 lb (2.3-32 kg). The typical lifespan of the Striped Bass is 20-30 years.

Set of scaled elevation drawings of the Striped Bass viewed from the front and side
The Striped Bass (Morone saxatilis), also called the Atlantic striped bass, rockfish, lineside, and striper, belong to the family Moronidae and are very significant in sport fishing. The Striped bass are anadromous, spawning in freshwater bodies of North America and live off the Atlantic coast.

Striped Basss have a total length between 20”-55” (51-140 cm), body height of 5.5”-15.5” (14-39.4 cm), and an overall weight in the range of 5-70 lb (2.3-32 kg). The typical lifespan of the Striped Bass is 20-30 years.

Set of scaled elevation drawings of the Striped Bass viewed from the front and side
Striped Bass
Height:
5.5”-15.5” | 14-39.4 cm
Width:
Length:
20”-55” | 51-140 cm
Depth:
Weight:
5-70 lb | 2.3-32 kg
Area:
Scientific Name
Morone saxatilis
Lifespan
20-30 years

Drawings include:

Striped Bass side elevation, front

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Bull Trout
Measured comparison illustration of the size of a Bull Trout to a typical person

The Bull Trout (Salvelinus confluentus) are threatened species native to freshwater lakes, rivers, reservoirs, and oceans of Northwestern America. They belong to the family Salmonidae with migratory species being larger than sedentary species living in streams. They are highly identified by salmon-colored spots of yellow or orange on their backs and fins having white leading edges.

Bull Trout are highly sensitive to water temperature, salinity, and quality which are a threat to their existence. The fish can also interbreed with the brook trout in areas introduced. Females dig nests in the gravel during spawning. Bull Trout is highly popular as a cold-water game fish.

Bull Trout have a total length between 24”-34” (61-86 cm), body height of 5”-7” (12.7-17.8 cm), and an overall weight in the range of 3-9 lb (1.4-4 kg). The typical lifespan of the Bull Trout is 5-12 years.

Set of scaled elevation drawings of the Bull Trout viewed from the front and side
The Bull Trout (Salvelinus confluentus) are threatened species native to freshwater lakes, rivers, reservoirs, and oceans of Northwestern America. They belong to the family Salmonidae with migratory species being larger than sedentary species living in streams.

Bull Trout have a total length between 24”-34” (61-86 cm), body height of 5”-7” (12.7-17.8 cm), and an overall weight in the range of 3-9 lb (1.4-4 kg). The typical lifespan of the Bull Trout is 5-12 years.

Set of scaled elevation drawings of the Bull Trout viewed from the front and side
Bull Trout
Height:
5”-7” | 12.7-17.8 cm
Width:
Length:
24”-34” | 61-86 cm
Depth:
Weight:
3-9 lb | 1.4-4 kg
Area:
Scientific Name
Salvelinus confluentus
Lifespan
5-12 years

Drawings include:

Bull Trout side elevation, front

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Walleye
Measured comparison illustration of the size of a Walleye to a typical person

The Walleye (Sander vitreus) are members of the family Percidae native to most freshwater bodies in Canada and the Northern United States. Its name comes from its eyes that are pointed upwards. These freshwater fish are nocturnal and prefer to travel in shallow waters.

Walleyes are one of the most commonly stocked game fish, distinguished by a big mouth with sharp teeth, long and thin bodies with gold or olive color patterns, and a white underside. They also have five or more color bands crossed on their backs. Besides, the Walleye has two dorsal fins (one spiny and another soft-rayed) and migrate to tributary streams to breed.

Walleyes have a total length between 22”-42” (56-107 cm), body height of 4.5”-8.5” (11.4-21.6 cm), and an overall weight in the range of 3-7 lb (1.4-3.2 kg). The typical lifespan of the Walleye is 15-25 years.

Scaled collection of drawings of Walleye in front and side poses
The Walleye (Sander vitreus) are members of the family Percidae native to most freshwater bodies in Canada and the Northern United States. Its name comes from its eyes that are pointed upwards. These freshwater fish are nocturnal and prefer to travel in shallow waters.

Walleyes have a total length between 22”-42” (56-107 cm), body height of 4.5”-8.5” (11.4-21.6 cm), and an overall weight in the range of 3-7 lb (1.4-3.2 kg). The typical lifespan of the Walleye is 15-25 years.

Scaled collection of drawings of Walleye in front and side poses
Walleye
Height:
4.5”-8.5” | 11.4-21.6 cm
Width:
Length:
22”-42” | 56-107 cm
Depth:
Weight:
3-7 lb | 1.4-3.2 kg
Area:
Scientific Name
Sander vitreus
Lifespan
15-25 years

Drawings include:

Walleye side elevation, front

Details & Downloads

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