Three days of onshore wind and the beach is the color of chocolate milk. Half the parking lot packs up. The other half says this is exactly when to stay.
Both halves are certain. That is the interesting part — because each side is describing a different condition.
The argument is older than you think
Nick Karas wrote The Striped Bass in 1993, and on page 246 he does not hedge:
many anglers quit the beach, thinking that striped bass won't feed in such turmoil. I believe that a good, muddy surf is more productive
He names the belief as the error, not the exception. And he gives a mechanism a few pages earlier: in the wash there is always sand in suspension, so a bass is likely to smell its food before it ever sees it.
That is one man's read, published in a trade book. Toby Lapinski reached the same read on his own 26 years later, writing in The Fisherman: dirty water holds bass, and they seem almost to prefer hunting in it. So what does the science say?
What has actually been measured
Quite a lot — and every bit of it on a different fish.
| Species | Finding |
|---|---|
| Smallmouth bass | Reactive distance falls from about 65 cm in clear water to roughly 10 cm at high turbidity |
| Largemouth bass | Capture fell at very high turbidity in the lab; in the field, piscivory did not differ between turbid and clear water |
| Bluegill | Reactive distance drops with both falling light and rising turbidity |
| Sablefish against two plankton-eaters | Turbidity cut the fish-eater's feeding far more than the plankton-eaters' |
| Striped bass larvae | Turbidity changes prey consumption |
Read that table quickly and it looks like a settled case against dirty water: predators cannot see as far, so they eat less. That is the conclusion a lot of fishing writing has drawn from it.
It is also not what the table says.
Reactive distance is not the same as catching anything
The smallmouth work is the one worth sitting with. Turbidity sharply reduced the distance at which a fish reacted to prey — but once a fish had reacted, its success in completing the strike was not what changed. Those are different mechanisms. One is about detection range. The other is about whether the attack works.
Sweka and Hartman's result suggests the cost of dirty water falls on finding food, not on catching it once it is close — which matters less to a fish that lets the current bring food to it.
The comparative work is the caution on the other side. Set one fish-eater against two plankton-eaters, and turbidity cut the fish-eater's feeding far more (De Robertis et al. 2003). Dirty water can tax the hunter more than its bait.
A striped bass is not a generic visual predator
This is the part that keeps the question open.
When researchers compared the visual systems of four piscivorous fishes in Chesapeake Bay, striped bass came out as a species whose vision requires bright light to work well and which is disadvantaged in turbid coastal water. On its own that sounds like a strike against dirty water.
But that describes the eye, not the whole animal. And the larval work hints at what else it has: young striped bass feed successfully without sight, using superficial neuromasts — the lateral-line organs that detect water movement — and they will feed in the dark given enough prey density.
Stripers feed heavily from dusk to dawn (Bigelow and Schroeder 1953; Karas), often in turbid water, with eyes that need bright light — so they are not simply sight hunters that stop when the water clouds.
The gap, stated plainly
Here is what does not exist: a published light threshold for adult striped bass prey capture. Not a disputed one. Not a weak one. The visual-system work measured the eye — it gives no number tied to feeding.
When someone quotes the inches of visibility a bass needs, ask for the study — none gives an adult striped bass a number.
What that leaves you with
In daylight, the canon's case for staying (Karas; Lapinski) holds up better than the beach thinks: the lab penalties bite hardest in dim light. The mechanism people cite for staying — that a bass feels before it sees — has real support in the larval work and in the visual-system result, even if the adult number is missing.
In the dark, dirty water is a genuinely different problem. Low light and low visibility each shorten how far a fish reacts to its prey (Vinyard and O'Brien 1976). That is the condition where the case for staying home is strongest, and it is the opposite of how the argument usually runs on the beach.
And your own log is better evidence than either side of the argument. You fish the same handful of places repeatedly. Log the water color on every session, and your own spots will show you how they fish dirty.
How StripedLines uses this
StripedLines is built for striped bass. Clarity is a read you make when you get there: no data feed measures it at the scale of one spot.