Chlorophyll Charts - Fishing Forecast

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Instructor: Thomas Hilton

Tom Hilton, owner of Hilton's Offshore, demonstrates using satellite imagery to read chlorophyll charts, which indicate phytoplankton presence in water. Chlorophyll helps build the food chain and attracts larger fish. Hilton's Realtime Navigator service aids in making informed decisions about fishing areas with good chlorophyll.

Description / Review / Instructor


  • Service: Hilton's Realtime Navigator is a fish forecasting service.
  • Functionality: Uses satellite data to show chlorophyll levels for specific regions.
  • Video: Features Thomas Hilton demonstrating the use of the Hilton's platform.
  • Purpose: Helps answer the key question - where are the fish?
  • Target Audience: Commercial fishing operations, tournament teams, weekend warriors.
  • Key Factor: Chlorophyll levels impact the presence of fish.
  • Chlorophyll: Basis of the oceanic food chain, indicating potential fruitful fishing grounds.

Hilton's Realtime Navigator

Hilton's Realtime Navigator is a fish forecasting service that employs satellite data to indicate the levels of chlorophyll for the eastern Pacific regions of Central America, Mexico and North America, the Caribbean, Gulf of Mexico and the Western Atlantic.

In The Spread Fishing Video

This In The Spread fishing video features Thomas Hilton demonstrating how to use the Hilton's platform to read the charts his service provides.

The Quest for Fish

The questions every fisherman has is where are the fish, and where do I need to go to catch them. In many cases, these are million-dollar questions. Whether you are a commercial fishing operation, a tournament team, or a weekend warrior, it all comes down to finding productive fishing grounds.

The Chlorophyll Factor

One key to this equation is the level of chlorophyll. The ideal levels for different species vary and are also directly impacted by sea surface temperature (SST). I will not bore you with the details, as the relationships between chlorophyll, SST, larvae, adult baitfish, and big game species vary. Tom Hilton will be happy to discuss these relationships with you, if you have questions.

What is Chlorophyll?

Chlorophyll in the water is produced by phytoplankton and its concentration is what builds the basis of the oceanic food chain. Small baitfish feed on phytoplankton and small pelagic fishes feed on these baitfish. The presence of phytoplankton often results in larger fish moving into an area for food. Marlin, sailfish, tuna, wahoo exist where the food exists.

The Challenge

The typical challenge for fishermen is to identify a fruitful fishing ground at any given time. Based on the relationship amongst chlorophyll concentration, phytoplankton, and the food chain of pelagic fishes, waters with high levels of chlorophyll may indicate a more favorable fishing ground. Thus, using charts that show chlorophyll concentrations may help to narrow down the fishing ground search and be useful to your fishing.


Why is chlorophyll important for fishing?
Chlorophyll is the basis of the oceanic food chain. Waters with high levels of chlorophyll are more likely to be favorable fishing grounds.

How does Hilton's Realtime Navigator help fishermen?
It provides charts showing chlorophyll concentrations, helping fishermen identify potential fruitful fishing areas.

Who can benefit from this service?
Commercial fishing operations, tournament teams, and weekend warriors can all benefit from using the service to locate productive fishing grounds.

What species of fish are commonly found in high chlorophyll areas?
Marlin, sailfish, tuna, and wahoo are some of the species that exist where food is abundant, often in areas with high chlorophyll concentrations.

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