Saithe Fishing: The Predator That Never Comes Alone
Pollack are loners: one fish under the edge, rising vertically, taking on the way up. Saithe use the same rock, the same wreck and the same genus — and do the exact opposite. Pollachius virens, saithe, coalfish, coley, sei, lieu noir, merluzzo nero, сайда: dark green to almost black over the back, silver along the flank, a deeply forked tail — a fast fish that does not wait, it travels. And it never travels alone. So the first take is not your catch, it is a message: a shoal is passing you right now. ⚠️ Watch the labels on this one. In Britain saithe/coalfish/coley is P. virens and pollack is P. pollachius; in the United States "pollock" usually means P. virens, while "Alaska pollock" is a third fish entirely, Gadus chalcogrammus.
Where it holds
Not hard on the bottom like cod and not tucked into cover like pollack, but in the open water above both: over rough ground, over wrecks, along drop-offs, in fjord mouths, off headlands, and anywhere a tide breaks against structure. It is a shoaling fish that uses the whole water column, from the surface down to several hundred metres. Small fish sit close inshore along pier ends, harbour walls and rock marks; the big ones are deeper and further out. Its range is the North Atlantic — from the Barents Sea and Spitsbergen south to the Bay of Biscay, around Iceland and south-west Greenland, and on the American side down to North Carolina. There are none in the Mediterranean and none in fresh water. For anglers from southern Europe or inland, this is the fish of a trip to Norway or Scotland. Maximum size is 130 centimetres and around 32 kilos; the IGFA all-tackle record of 22.7 kilos came from Norway.
When it feeds
Tide. If you remember one condition, remember that one. Saithe hunt where moving water pins bait against an edge; when the tide slackens and the water stands still, the same mark can empty in minutes. So here the running tide is the window and slack water is not — the exact opposite of a fish like John Dory. Light matters on top of that: at dawn and dusk the shoal rides higher, at midday it drops. Catch fish at twelve metres in the morning, fish twelve metres in the afternoon, and you will often be fishing above them. Seasonally they push inshore through summer and autumn and go deep in winter. And the key point about timing: a shoal is not a state, it is an event. It moves through. Feeding windows on a saithe mark last minutes, not hours.
How it is caught
- Remember the depth of the first fish, not the lure: If one takes at 22 metres, the shoal is at 22 metres. Count the reel turns up from the bottom or read the number off the sounder, and put the next drop back exactly there. That single number catches more fish than any change of lure.
- The second cast is the most important of the day: Hook out, fish dealt with, lure straight back down — do not retie, do not photograph, do not sort the box. Take two minutes after the first fish and the shoal has gone. Take twenty seconds and you get the next one.
- Mid-water, not the bottom: Pirks, soft plastics and feathers are not bounced on the deck, they are worked through the column: let it fall, lift it, offer it at different depths until one depth answers. Bouncing bottom belongs to cod.
- Loose drag, first run is downwards: A hooked saithe runs steeply down and pulls harder than its size suggests. Set the drag on the soft side and let that first run happen — holding it costs hooks and line. Pump only once it stops on its own.
- Identify before you measure: Saithe and pollack swim the same edge and carry different minimum sizes. Saithe have a straight, pale lateral line, jaws of roughly equal length and a dark green back; pollack have a pronounced dark kink in the lateral line above the pectoral, a jutting lower jaw and a brown-gold tone.
And because with a shoaling fish the pile grows faster than the conscience, two Norwegian numbers belong here — both from the rules, not from memory. Minimum size (høstingsforskriften § 47): saithe 45 centimetres north of 62° N, 40 centimetres south of it, and 32 centimetres inside four nautical miles in the Skagerrak. Pollack ("lyr") is 30 centimetres everywhere — two fish of the same genus, on the same edge, under different rules. Export (Fiskeridirektoratet): you may take 15 kilos of fish or fish products per person out of the country, at most twice per calendar year, from the age of twelve, and only with documentation that you fished and stayed with a registered tourist fishing business. From 1 January 2027 that allowance drops to 10 kilos, and a trophy fish does not come on top of it. With a fish that arrives in shoals, then, the limit is not the fishing but the boot of the car — which is a good argument for stopping early and putting fish back alive while they were hooked shallow enough to survive it.
Not the take — the repeat
With this fish it is not about hooking one, it is about getting the second, third and fourth before the shoal has moved on. Whether one comes past at all depends on tide, current, light and season — on everything that changes while the wreck on the chart stays put. That is exactly what the StrikeAhead app is built for: it reads your mark with bite windows, weather and water data, chart and depth contours, and learns from your catches so you fish the moment instead of guessing it. And the first time you stand in an unfamiliar fjord where the good edges are underwater and the current runs differently every hour, the second half is the shortcut. The app tells you when. StrikeAhead Pathfinder tells you who with: our curated directory of fishing guides and skippers — every expert personally vetted, licence and insurance checked before listing, profiles built from real, verified catches in the StrikeAhead logbook rather than marketing photos, no paid ranking, and no booking fee for you as an angler.