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Rating depth structure for zander.
Recent public catches load as you reach this section.
625.2-acre lake in Estonia. The lake tops out around 3.5 m. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. What follows comes from the same scoring engine that paints the spots above.
Veekogu joonistub 254 hektari suurusena, kallast 9 km, saari on 2. Kaldajoon on mõõdukalt liigestatud (indeks 1.6). Kogu veekogu on madalam kui ~5 m — taimestik ja söödakala kaldast kaldani. Otsast otsani mõõdab veekogu umbes 3.1 km, kõige laiemas kohas 1.3 km. Lähim kaardistatud veekogu on Kaiu järv, 29 km loodesse.
Tasuta interaktiivne sügavuskaart — Koosa järv, Eesti: sügavusjooned päris mõõdistusandmetest kuni 3 m (11 jalga), lisaks parimad püügikohad liikidele ahven, haug, koha jt. Sügavusjooned põhinevad päris mõõdistusandmetel (Keskkonnaagentuur / Tallinna Ülikool, CC BY 4.0). Kasuta suunisena, mitte navigeerimiseks.
When the water first warms, european perch slide up into 1 to 3.5 m. There's no big seasonal slide here — summer means 1 to 3.5 m, winter 1 to 3.5 m. Start at Deep basin. It's a deep basin holding about 2 m of water and rates prime come fall. The feeding windows run early morning. Keep a drop-shot micro plastics or a small crankbait (perch pattern) rigged through the warm months.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Hooaeg | Sügavus | Parim aeg | Alusta siit | Landid |
|---|---|---|---|---|
| Kevad | 1 to 3.5 m chart-limited; documented 1 to 3.5 m | midday & dawn | Shallow bay flat (0.5 m) | Small jig + curly tail, Inline spinner #1-2 |
| Suvi | 1 to 3.5 m chart-limited; documented 2.5 to 8.5 m | dawn | Deep basin (2 m) | Drop-shot micro plastics, Small crankbait (perch pattern) |
| Sügis | 1 to 3.5 m chart-limited; documented 3 to 10 m | midday | Deep basin (2 m) | Jigging spoon (small), Drop-shot on deep flats |
| Talv | 1 to 3.5 m chart-limited; documented 3.5 to 10 m | midday & dawn | Deep basin (2 m) | Tungsten jig + maggots, Small balance jig |
Spring northern pike on Koosa järv hold shallow, usually 0.5 to 2.5 m. They move out to 1 to 3.5 m in summer and finish the year down in 1 to 3.5 m. Put Shallow bay flat first on the milk run — a weed flat near 0.5 m that grades prime for spring. The feeding windows run early morning and the evening. The summer box starts with a bucktail or a weedless spoon over cabbage.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Hooaeg | Sügavus | Parim aeg | Alusta siit | Landid |
|---|---|---|---|---|
| Kevad | 0.5 to 2.5 m | midday & dawn | Shallow bay flat (0.5 m) | #5 inline spinner, Spoon (red/white) |
| Suvi | 1 to 3.5 m chart-limited; documented 2.5 to 6 m | dawn & dusk | Break off the point (1.5 m) | Bucktail, Weedless spoon over cabbage |
| Sügis | 1 to 3.5 m chart-limited; documented 2 to 5.5 m | midday & dawn | Break off the point (1.5 m) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Talv | 1 to 3.5 m chart-limited; documented 1.5 to 4.5 m | midday | Shallow bay flat (0.5 m) | Tip-ups, Large jigging spoon |
When the water first warms, zander slide up into 1 to 3.5 m. There's no big seasonal slide here — summer means 1 to 3.5 m, winter 1 to 3.5 m. Start at Break off the point. It's a drop-off holding about 1.5 m of water and rates prime come fall. The feeding windows run the evening and early morning. Keep a vertical softbait over humps or a deep crankbait rigged through the warm months.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Hooaeg | Sügavus | Parim aeg | Alusta siit | Landid |
|---|---|---|---|---|
| Kevad | 1 to 3.5 m chart-limited; documented 1 to 4.5 m | dusk & dawn | Break off the point (1.5 m) | Softbait on jighead (10-12 cm), Shallow crankbait at dusk |
| Suvi | 1 to 3.5 m chart-limited; documented 4.5 to 11 m | dusk & dawn | Break off the point (1.5 m) | Vertical softbait over humps, Deep crankbait |
| Sügis | 1 to 3.5 m chart-limited; documented 3.5 to 12 m | dusk & night | Break off the point (1.5 m) | Big softbait (12-16 cm) slow-rolled, Jigging spoon |
| Talv | 1 to 3.5 m chart-limited; documented 6 to 12 m | dusk & dawn | Deep basin (2 m) | Vertical jig / mormyshka with bait, Slow blade bait |
Spring puts lake whitefish in skinny water — 1 to 3.5 m is the zone. Summer fish stay in 1 to 3.5 m, and winter fish hold in 1 to 3.5 m. Summer lake whitefish concentrate at Deep basin, a prime-rated deep basin around 2 m. Warm-month bites cluster around early morning. A blade bait vertical or a small jigging spoon covers the summer program.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Hooaeg | Sügavus | Parim aeg | Alusta siit | Landid |
|---|---|---|---|---|
| Kevad | 1 to 3.5 m chart-limited; documented 4.5 to 14 m | midday & dawn | Break off the point (1.5 m) | Small jig + waxworm, Blade bait (small) |
| Suvi | 1 to 3.5 m chart-limited; documented 12 to 27 m | dawn | Deep basin (2 m) | Blade bait vertical, Small jigging spoon |
| Sügis | 1 to 3.5 m chart-limited; documented 2.5 to 9 m | dusk | Break off the point (1.5 m) | Small spoon (gold), Jig + plastic larva |
| Talv | 1 to 3.5 m chart-limited; documented 7.5 to 21 m | midday & dawn | Deep basin (2 m) | Jigging spoon + bead chain, Tungsten jig + waxie |
Spring puts cisco (lake herring) in skinny water — 1 to 3.5 m is the zone. Summer fish stay in 1 to 3.5 m, and winter fish hold in 1 to 3.5 m. Spring cisco (lake herring) concentrate at Deep basin, a prime-rated deep basin around 2 m. Warm-month bites cluster around early morning. A vertical flutter spoon (small) or a drop-shot micro plastic covers the summer program.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Hooaeg | Sügavus | Parim aeg | Alusta siit | Landid |
|---|---|---|---|---|
| Kevad | 1 to 3.5 m chart-limited; documented 3 to 12 m | dawn & dusk | Deep basin (2 m) | Small silver spoon, Tiny swim jig (white) |
| Suvi | 1 to 3.5 m chart-limited; documented 12 to 24 m | dawn | Deep basin (2 m) | Vertical flutter spoon (small), Drop-shot micro plastic |
| Sügis | 0.5 to 3.5 m chart-limited; documented 1.5 to 7.5 m | dusk & dawn | Break off the point (1.5 m) | Small casting spoon, Inline spinner (silver) |
| Talv | 1 to 3.5 m chart-limited; documented 6 to 18 m | dawn | Deep basin (2 m) | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
Early season burbot use the shallows, holding in 1 to 3.5 m. Even in summer they hold at 1 to 3.5 m; winter keeps them in 1 to 3.5 m. Put Deep basin first on the milk run — a deep basin near 2 m that grades prime for spring. In summer the feeding windows fall in after dark and midday. Tie on a heavy jig + cut bait and you're in the game.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Hooaeg | Sügavus | Parim aeg | Alusta siit | Landid |
|---|---|---|---|---|
| Kevad | 1 to 3.5 m chart-limited; documented 7.5 to 21 m | night & dusk | Deep basin (2 m) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Suvi | 1 to 3.5 m chart-limited; documented 15 to 37 m | night & midday | Deep basin (2 m) | Heavy jig + cut bait |
| Sügis | 1 to 3.5 m chart-limited; documented 9 to 24 m | night & dusk | Deep basin (2 m) | Glow spoon + minnow head, Blade bait (slow) |
| Talv | 1 to 3.5 m chart-limited; documented 4.5 to 18 m | night & dusk | Deep basin (2 m) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Structure-wise the chart holds 6 features, led in depth by Deep basin at roughly 2 m.
Season dates, license requirements, and size and bag limits for Estonia waters are set by the Keskkonnaamet (Estonian Environmental Board) — and special regulations can apply to Koosa järv specifically, so confirm the current rules before you fish.
Check the official Estonia fishing regulations →
Koosa järv is about 11 ft (3 m) deep at its deepest point. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Koosa järv on sügavaimas kohas umbes 3 meetrit (11 jalga). Sügavused põhinevad päris mõõdistustel.
Anglers target european perch, northern pike, zander, lake whitefish, cisco (lake herring), burbot on Koosa järv.
Deep basin is the top-rated area: a deep basin in about 7 ft of water that rates prime for european perch in fall. Every other rated spot, per species and season, is on the map above.
For european perch, the summer bite is best in early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Koosa järv is regulated by the Keskkonnaamet (Estonian Environmental Board). Check the official Estonia regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Kaiu järv 29 km · Jõemõisa järve veekogum 30.6 km · Saadjärv 30.6 km · Kaiavere järv 33.8 km · Saare järv 33.8 km · Raigastvere järv 33.8 km · Meelva järv 35.4 km · Kaarepere pikkjärv 41.8 km · Pangodi järv 41.8 km · Karijärv 45.1 km · Kuremaa järv 46.7 km · Verevi järv 48.3 km
See how Koosa järv stacks up: best zander lakes in Estonia · best northern pike lakes in Estonia · best european perch lakes in Estonia · best lake whitefish lakes in Estonia
Browse all Estonia fishing maps. See every water on DepthScout. Bathymetry credit: Estonian Environment Agency / Tallinn University, CC BY 4.0. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.