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June 13, 2024
PODCAST – Learn More About The New SiriusXM Marine Fish Mapping Service
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PODCAST – Learn More About The New SiriusXM Marine Fish Mapping Service

SiriusXM Marine has recently launched their new service called Fish Mapping. The service is designed to help saltwater anglers from Beginner to Pro locate fish faster and more effectively.

In this podcast, Jay and Dan from Sirius XM Marine discuss some new features for the Sirius XM Fish Mapping service.

Fish Mapping Features

Fishing Recommendations
View locations oceanographers recommend to find specific types of game fish, based on data-driven analysis. The locations are overlaid on your chart, can be viewed in combination with any of the other features and are updated twice per week.
Weed Lines
View concentrations of floating algae/plants, which provide nutrients and cover, creating habitats for bait fish, shrimp, etc., and attract larger, predatory game fish. Weed lines drift and shift over time, so they can be hard to locate. Use this feature to help find where weed lines have been sighted recently, or are most likely to be forming – to help you find game fish. Updated every 24 hours.

Sea Surface Height Anomaly

View locations where the sea surface height is noticeably different than the surrounding area using real-time radar data and models of the sea surface. View “upwelling” hot spots that create favorable conditions including nutrient-rich water that attracts bait fish and game fish. Avoid “downwelling” areas that are nutrient-poor and don’t support favorable fishing conditions. Updated every 24 hours.

Sea Surface Temperature Contours

View contour lines where there is sea surface temperature warming. These contour lines show noticeable breaks where the water temperature is changing from cool to warm – attracting bait fish. Use these contours to help locate your target species based on their preferred temperature range. Updated every 6 hours.

Sea Surface Temperature Front Strength

View estimated strength of ocean “fronts”, which are significant temperature changes that create distinct boundaries between bodies of water. Fronts concentrate nutrients which attract bait fish and also creates barriers to fish movement. The location of strong and very strong fronts are good places to find game fish. Updated every 24 hours.

30m Subsurface Sea Temperatures

View the water temperature 30 meters below the surface. Different species of fish prefer specific ranges of temperatures. This feature allows you to identify areas with the preferred temperature range of your target game fish in the area below the surface where they are likely to be hunting. Updated every 24 hours.

Plankton Concentration Contours

View contour lines which show distribution of plankton concentrations in water. Plankton is the primary food source for most bait fish, which attract hungry game fish. Updated every 24 hours.

Plankton Front Strength

View areas with strong plankton concentration bordering areas with relatively little or no plankton. Plankton “fronts” show where murky, nutrient-rich water favorable for bait fish occurs next to clear, predator-preferred water (providing better visibility for hunting). Strong plankton fronts indicate areas for game fish feeding activity. Updated every 24 hours.

High-Res Coastal Sea Surface Temps to 24NM Limit

Offshore Sea Surface Temperatures beyond 24NM Limit


Recommended locations where fishing conditions are favorable, by species

So How Do They Do It

Fish Mapping provides regularly updated, science-based infographics to anglers well offshore, beyond cellphone range. SiriusXM Marine Teamed up with Maxar Technologies. Maxar has provided oceanographic data and fishing recommendations to commercial fishermen for more than 20 years.


What Hardware Do I Need

Currently there service is only available via the Garmin GXM 54 satellite weather and radio receiver, compatible with many Garmin multifunction displays. Expected out soon will be Simard followed by the other manufactures in the future.

  1. Purchase and install compatible hardware – Currently only Garmin MFD’s that have a Garmin GXM 54 receiver will be able to get the service but Sirius XM Marine is offering a $100 rebate when you purchase a GXM 54 receiver!
  2. Garmin GXM 54 receiver – $100 rebate available!
  3. Download the latest software update for your Garmin MFD here

How Much Does It Cost

Adding the Fish Mapping package to your boat is easy and it includes all of our weather and fishing data! The cost is $99.99/month for the service.

Subscribe online or call 1‑844‑342‑0665 and ask for your 1‑month trial of Fish Mapping! See Trial Offer Details below.