Chain Pickerel
Chain Pickerel (Esox niger) is a freshwater species. The first thing to check: a bold dark chain-link or net pattern over green-gold flanks — unmistakable once seen. The look-alike to rule out is Northern Pike: pike carry rows of light bean-shaped spots on a dark background — the reverse of the pickerel's dark chain on light — and are far larger.
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| Scientific name | Esox niger |
|---|---|
| Also called | jack, southern pike |
| Water | Freshwater |
| Group | Pike |
| Temperature | Feeds across a wide band and stays active in cold water, from the low 40s into the high 70s °F. |
How to identify a Chain Pickerel
- A bold dark chain-link or net pattern over green-gold flanks — unmistakable once seen.
- A single dark vertical bar beneath the eye, running straight down.
- Fully scaled cheeks and gill covers, and a duck-billed snout.
If you would rather not work through a key on a wet deck, photograph the fish and let the app name it — you get the common and the scientific name back, and the record is filed before you release.
Fish it is mistaken for
| Species | How to tell them apart |
|---|---|
| Northern Pike | Pike carry rows of light bean-shaped spots on a dark background — the reverse of the pickerel's dark chain on light — and are far larger. |
| Redfin Pickerel | Redfin pickerel are much smaller, have a shorter snout and a backward-slanting bar under the eye rather than a vertical one. |
Read the full entry for Northern Pike.
Where it lives
Weedy lakes, ponds, swamps and slow rivers of the eastern United States, from Maine to Florida and west to the Mississippi. Ambushes from thick vegetation in shallow water.
Temperature
Feeds across a wide band and stays active in cold water, from the low 40s into the high 70s °F.
The conditions that matter
Pickerel remain aggressive in cold water when bass have shut down, which makes them the reliable winter fish on much eastern water. They are sight ambush hunters, so clarity and light matter more than pressure.
Global Fishing League records 18 weather and water readings against every catch automatically — tide stage, barometric pressure, water temperature, salinity, dissolved oxygen, chlorophyll, swell, current, moon phase and more, taken at your GPS position at the moment you log the fish. Over a season that turns a hunch about chain pickerel into a pattern you can read.
See every reading recorded with a catch, or the guides to what each reading means.
Size limits, bag limits and seasons
Size limits, bag limits, slot limits and seasons are set by your state wildlife agency — and for many offshore and migratory species by federal regulators — and on many waters they differ from the statewide rule. They also change between seasons. Check the current regulations for the exact water you are fishing before you keep a fish — we do not republish limits here, because a number that is a season out of date is worse than no number.
What the app does do is make your side of it accurate: every catch carries a length measured from the photograph, a GPS position and a timestamp, exportable if you ever need to show your work for a tournament or a record claim. It is also what a Global Fishing League entry is built from — a record that verifies itself, without publishing where you caught the fish.