| Popis: |
All available capture records of the endangered shortnose sturgeon, Acipenser brevirostrum, for the Delaware River Estuary from the early nineteenth century to the present were compiled. During 1817 through 1913 some 1,949 captures were reported, most as a bycatch of the shad gill net fishery. No documented captures during 1913 to 1954 were reported in the literature. Thirty-seven shortnose sturgeon were reported captured from 1954 through 1979, mostly incidental to fishery and ecological studies. Most specimens were taken in the upper tidal freshwater portion of the estuary (rkm 200-214). Seasonal-spatial distribution appeared similar to that observed for north- ern shortnose sturgeon populations. Taxonomic data obtained from seven specimens generally agreed with those from other drainages. |
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