Alternative Text Description for Seagrass Distribution in Florida

TABLE OF CONTENTS

MAP OVERVIEW

This map displays the statewide distribution of seagrass habitats along Florida's coastal waters. The thematic layer shows two categories of seagrass coverage: continuous seagrass beds and discontinuous (patchy) seagrass areas. The map reveals the extent and density patterns of seagrass meadows throughout Florida's extensive coastline, providing a comprehensive view of this critical marine habitat across the state.

GEOGRAPHIC CONTEXT

The map covers the entire state of Florida and its surrounding coastal waters. Major cities labeled include Pensacola in the northwestern panhandle, Tallahassee in the north-central region, Jacksonville on the northeastern coast, Gainesville and Orlando in the central interior, Tampa and St. Petersburg on the central Gulf coast, Cape Coral on the southwestern coast, and Miami and Coral Springs in the southeastern region. The map extends northward to show portions of southern Alabama and Georgia (including Dothan, Albany, and Valdosta), and includes the Florida Keys extending southward from the mainland. The coastal waters shown include both the Atlantic Ocean along the eastern shore and the Gulf of America along the western and northern Gulf coasts.

KEY INSIGHTS

Seagrass distribution follows a distinct coastal pattern, concentrated almost entirely within nearshore marine environments along Florida's extensive coastline. The most substantial seagrass concentrations appear in three major areas: the Big Bend region of the northwestern Gulf coast near the Tallahassee-Tampa corridor, the southwestern Gulf coast around Cape Coral and extending southward, and the Florida Keys archipelago. Southern Florida, particularly the area encompassing the Keys and the shallow waters between the mainland and the island chain, contains the densest and most extensive seagrass coverage. The eastern Atlantic coast shows notably sparser seagrass distribution compared to the Gulf coast. The northwestern panhandle near Pensacola displays limited seagrass presence, while the central Gulf coast shows a nearly continuous ribbon of seagrass habitat extending along the shoreline.

VISUAL ELEMENTS

Seagrass

This layer represents marine seagrass habitat distribution compiled from multiple sources and mapping efforts across Florida's coastal waters, classified into two coverage categories.

Continuous Seagrass (dense pink hatched pattern)

Appearance: Displayed as dense pink areas with a crosshatch or grid pattern, indicating areas of solid seagrass coverage.

Distribution: Continuous seagrass appears most prominently in southern Florida, particularly in the Florida Keys and the shallow marine areas surrounding them. Significant continuous coverage also occurs along the Big Bend coast of the northwestern Gulf, in portions of Tampa Bay, and in areas around Cape Coral on the southwestern Gulf coast.

Notable locations: The most extensive continuous seagrass meadows are located in the Florida Keys, especially around the Middle and Lower Keys near Miami. The Big Bend region between the Tallahassee and Tampa areas shows substantial continuous coverage. The Cape Coral vicinity and adjacent coastal areas contain notable continuous seagrass beds.

Spatial patterns: Continuous seagrass forms the core of larger seagrass habitat complexes, typically appearing in protected shallow waters. These areas often occur in bays, near barrier islands, and in the relatively sheltered waters of the Florida Keys. Continuous beds frequently transition into discontinuous patterns at their outer edges.

Discontinuous Seagrass (lighter pink solid pattern)

Appearance: Displayed as lighter pink solid areas without hatching, representing patchy or intermittent seagrass coverage.

Distribution: Discontinuous seagrass forms a nearly continuous narrow band along much of Florida's Gulf coastline, particularly prominent from the Big Bend region southward to Cape Coral. It appears along the eastern Atlantic coast in scattered patches near Palm Coast and Palm Bay, and forms extensive areas around the periphery of the Florida Keys.

Notable locations: Extensive discontinuous seagrass occurs along the central Gulf coast between Tampa and Cape Coral, throughout the Big Bend coastal region, around the margins of Tampa Bay and St. Petersburg, and in the nearshore waters surrounding the Florida Keys archipelago.

Spatial patterns: Discontinuous seagrass typically appears as a transitional zone between continuous seagrass beds and open water, or as isolated patches in areas with less favorable conditions for dense growth. It follows coastline contours closely and often forms linear or ribbon-like patterns parallel to the shore.

Overlapping Patterns

In many coastal areas, particularly in the Big Bend region and around the Florida Keys, continuous and discontinuous seagrass habitats occur in close proximity, with continuous beds surrounded by or adjacent to discontinuous patches. This pattern suggests gradients in water depth, water quality, or other environmental factors that influence seagrass density.

SYMBOL GUIDE

ADDITIONAL INFORMATION

This map represents a statewide compilation of seagrass data from multiple sources, agencies, and time periods, merged into a unified classification system. The original source datasets used various classification methods, including FLUCCS codes and different approaches to defining seagrass density and percent cover. All source classifications have been standardized into the two categories shown: continuous and discontinuous seagrass. In areas where multiple studies overlap, the most recent interpreted data is displayed. This compilation is not directly comparable to previous statewide seagrass datasets for time-series analysis, as not all areas have been updated uniformly and some previously unmapped areas are now included. Users requiring temporal comparisons should contact the data provider to access individual source datasets with specific collection dates.

DATA CONTEXT

Data Source: This dataset is a compilation of statewide seagrass data from various source agencies and scales. Not all data in this compilation are mapped from aerial photography; some results are derived from field measurements. The original source datasets were classified using different schemes, including the Florida Land Use Cover and Forms Classification System (FLUCCS) codes 9113 for discontinuous seagrass and 9116 for continuous seagrass, as well as other classification approaches defining presence/absence or varying degrees of percent cover. The Florida Fish and Wildlife Research Institute (FWRI) reclassified all source data into the two standardized categories shown in this map. Source data layer name: SEAGRS_DEC24.

Definition Query: No definition query or filter criteria was applied to this dataset.

Scale Information: The map shows a statewide view of Florida appropriate for understanding broad regional patterns of seagrass distribution. The source data originates from various scales, and detail levels may vary across different geographic areas depending on the source study.

Coordinate System: NAD_1983_HARN_Florida_GDL_Albers (WKID 3087)

Time Period of Content: The dataset represents a December 2024 compilation. Individual areas within the compilation were mapped at different times depending on the source study dates. For specific temporal information about particular geographic areas, users should consult the source metadata or contact the data provider.

Limitations: This compilation dataset integrates sources from different time periods, scales, and methodologies. Not all areas have been updated since previous statewide compilations, and some previously unmapped areas are now included. The dataset is not suitable for direct time-series comparisons without accessing the underlying source data. Data quality, resolution, and currency vary geographically depending on the source study. Users should consult metadata for information about source dates and input datasets for specific areas of interest.

Map Coverage: The map covers the entire state of Florida and its adjacent coastal waters, extending from the western panhandle near Pensacola through the Big Bend region, down the Gulf coast to the Florida Keys, and northward along the Atlantic coast to Jacksonville. The map extent includes portions of neighboring states (Alabama and Georgia) for geographic context.

The alternative text description of this map was AI-generated and may contain inaccuracies.