The abundance of the lined seahorse is variable, depending on habitat, season, sex and other factors. Abundance estimates for populations of H. erectus in Florida Bay exceeded 9.9 individuals 1000 m-2 in some locations, and was highest in July (Powell et al. 2007). Shrimp trawls off Hernando Beach, Florida in the Gulf of Mexico have collected 72,000 seahorses annually as bycatch (Baum et al. 2003). Populations in Chesapeake Bay show a greater abundance of females (Teixeira & Musik 2001), a pattern likely repeated in other regions as a result of life history patterns and mating behaviors. Courtship &
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