Salt water depth chart
Today's read
Recent public catches load as you reach this section.
52,323-acre Great Musselroe Bay. West Australian saltwater fishing map showing only directly measured AusBathyTopo 2026 cells, source-qualified fishing spots, official regional fish evidence, seasonal forage context, access guidance and current-rule links. West trip-scale surveyed footprint within Great Musselroe Bay. A northeast Tasmanian bay of beaches, reef points, shallow banks and exposed Bass Strait approaches. The displayed footprint is not a legal boundary or a claim of complete named-water coverage. The water tops out around 175 ft. The depth chart comes from Geoscience Australia / AusSeabed bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The rest of this page walks each species through its year, using the map's own scoring.
On the chart, Great Musselroe Bay - West draws 52,323 acres inside 47.8 miles of shoreline. Index 1.5 on the shoreline: a few honest points and pockets, nothing labyrinthine. Roughly 6% of the water is 15 ft or less, the band where the food chain lives. Figure 16.3 mi of water from one end to the other, 10 mi at the beam. The nearest mapped water is Great Musselroe Bay - North, 11 mi to the north.
Regional occurrence does not mean equal abundance, child-specific catch rate, retention permission or a promised catch. Live state, territory, Commonwealth, protected-area and local rules always control. The roster may combine exact-water monitoring with habitat-filtered official regional evidence; it does not imply that every species is equally abundant throughout the mapped section.
| Species | Evidence basis | Count / date |
|---|---|---|
| sand flathead (Sand Flathead) | official species listing | — |
| black bream (Black Bream) | official species listing | — |
| Australian salmon (Australian Salmon) | official species listing | — |
| silver trevally (Silver Trevally) | official species listing | — |
| gummy shark (Gummy Shark) | official species listing | — |
| yellowtail kingfish (Yellowtail Kingfish) | official species listing | — |
Official species-evidence source.
Start shallow in spring: sand flathead sit in 8 to 35 ft that time of year. Summer pushes them deeper, 16 to 80 ft, and winter fish settle into 8 to 35 ft. The spot to know is Sharp break, a drop-off in about 53 ft of water that rates good for sand flathead in summer. Warm-month bites cluster around early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 35 ft | dawn & dusk | Sharp break (31 ft) | see map |
| Summer | 16 to 80 ft | dawn & dusk | Sharp break (53 ft) | see map |
| Fall | 8 to 56 ft | dawn & dusk | Sharp break (53 ft) | see map |
| Winter | 8 to 35 ft | dawn | Sharp break (31 ft) | see map |
When the water first warms, black bream slide up into 2 to 16 ft. Summer is a 7 to 35 ft game here, winter a 2 to 16 ft one. Start at Sharp break. It's a drop-off holding about 31 ft of water and rates good come summer. The feeding windows run early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 16 ft | dawn & dusk | Shoreline point (7 ft) | see map |
| Summer | 7 to 35 ft | dawn & dusk | Sharp break (31 ft) | see map |
| Fall | 2 to 25 ft | dawn & dusk | Offshore hump (23 ft) | see map |
| Winter | 2 to 16 ft | dawn | Shoreline point (7 ft) | see map |
Early season australian salmon use the shallows, holding in 4 to 30 ft. Expect a summer slide to 14 to 80 ft, then a winter hold in 4 to 30 ft. Put Sharp break first on the milk run — a drop-off near 53 ft that grades prime for summer. In summer the feeding windows fall in early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 30 ft | dawn & dusk | Shoreline point (7 ft) | see map |
| Summer | 14 to 80 ft | dawn & dusk | Sharp break (53 ft) | see map |
| Fall | 4 to 56 ft | dawn & dusk | Sharp break (53 ft) | see map |
| Winter | 4 to 30 ft | dawn | Shoreline point (7 ft) | see map |
When the water first warms, silver trevally slide up into 4 to 30 ft. Summer is a 14 to 80 ft game here, winter an 18 to 80 ft one. Start at Sharp break. It's a drop-off holding about 53 ft of water and rates prime come summer. The feeding windows run early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 30 ft | dawn & dusk | Shoreline point (7 ft) | see map |
| Summer | 14 to 80 ft | dawn & dusk | Sharp break (53 ft) | see map |
| Fall | 4 to 56 ft | dawn & dusk | Sharp break (53 ft) | see map |
| Winter | 18 to 80 ft | midday | Sharp break (53 ft) | see map |
When the water first warms, gummy shark slide up into 8 to 40 ft. Summer is an 18 to 120 ft game here, winter an 8 to 40 ft one. Start at Sharp break. It's a drop-off holding about 53 ft of water and rates prime come summer. The feeding windows run early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 40 ft | dawn & dusk | Sharp break (31 ft) | see map |
| Summer | 18 to 120 ft | dawn & dusk | Sharp break (53 ft) | see map |
| Fall | 8 to 84 ft | dawn & dusk | Sharp break (53 ft) | see map |
| Winter | 8 to 40 ft | dawn | Sharp break (31 ft) | see map |
In spring, yellowtail kingfish run shallow here, mostly 8 to 45 ft. Midsummer fish sit out in 20 to 130 ft before dropping to 27 to 130 ft for winter. Spring yellowtail kingfish concentrate at Shoreline point, a prime-rated point around 40 ft. Fish it in early morning and the evening and you'll meet the bite.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 8 to 45 ft | dawn & dusk | Shoreline point (40 ft) | see map |
| Summer | 20 to 130 ft | dawn & dusk | Sharp break (53 ft) | see map |
| Fall | 8 to 91 ft | dawn & dusk | Sharp break (53 ft) | see map |
| Winter | 27 to 130 ft | midday | Sharp break (53 ft) | see map |
Count 13 structure marks on this chart. The deepest, Deepest basin, sits near 172 ft.
No facility from the cited Marine and Safety Tasmania boating facilities source was spatially attached within 3 km of this directly measured map footprint during the 2026-09-08 audit. This is an evidence gap, not a claim that public access is absent. Check the official portal, live site signs, tides, ramp condition, vessel suitability, fees, parking, working-port restrictions and landowner permissions before travel: https://mast.tas.gov.au/recreational/boating-facilities/
Private land and private launches need the owner's permission — please ask first.
Season dates, license requirements, and size and bag limits for Tasmania waters are set by the Fishing Tasmania (current recreational sea-fishing rules) — and special regulations can apply to Great Musselroe Bay - West specifically, so confirm the current rules before you fish. Check Fishing Tasmania's live sea-fishing rules and licensing pages before every trip. Current species limits, licences for particular fisheries, seasonal and area closures, marine reserves, protected species, gear controls and biosecurity measures may apply. A directly measured depth footprint, fishing-spot marker or access lead is planning context only and never grants permission to fish, keep catch, enter private or port land, park or launch.
Check the official Tasmania fishing regulations →
Fishing Tasmania species and licence information →
Check special-area and water-specific rules →
Great Musselroe Bay - West is about 175 ft (53 m) deep at its deepest point. The depth chart comes from Geoscience Australia / AusSeabed bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Official coastal monitoring from Tasmania Department of Natural Resources and Environment regional evidence informs the sand flathead, black bream, australian salmon, silver trevally, gummy shark, yellowtail kingfish roster for Great Musselroe Bay - West. The mixed roster combines exact-water records where available with habitat-filtered regional evidence; not every species is documented at this exact water, and it is not a promise of equal abundance or a catch on a particular trip.
Sharp break is the top-rated area: a drop-off in about 53 ft of water that rates prime for australian salmon in summer. The interactive chart above rates every spot for each species and season.
For sand flathead, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Great Musselroe Bay - West is regulated by the Fishing Tasmania (current recreational sea-fishing rules). Check the official Tasmania regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Great Musselroe Bay - North 11 mi · Great Musselroe Bay - Northwest 18 mi · Maclaines Bay 25 mi · Ringarooma Bay 28 mi · Burgess Bay 31 mi · Gunters Bay 43 mi · St Albans Bay 52 mi · Pilots Bay 79 mi · Great Oyster Bay - Sector 06 83 mi · Great Oyster Bay - Sector 05 87 mi · Great Oyster Bay - Sector 08 97 mi · Great Oyster Bay - Sector 09 97 mi
Browse all Tasmania fishing maps. See every water on DepthScout. Bathymetry: published agency survey data. 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.