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Effects Of Intensive Fishing Effort On The Population Structure Of Quahogs, Mercenaria Mercenaria (Linnaeus, 1758), In Narragansett Bay, Michael Rice, Charles Hickox, Itrat Zehra
Effects Of Intensive Fishing Effort On The Population Structure Of Quahogs, Mercenaria Mercenaria (Linnaeus, 1758), In Narragansett Bay, Michael Rice, Charles Hickox, Itrat Zehra
Michael A Rice
Mercenaria mercenaria and sediment samples were collected from 3 locations in Narragansett Bay: Greenwich Cove, Greenwich Bay, and the West Passage. Greenwich Cove has been closed to shellfishing for several decades. Average density of quahogs in the cove was 190/m super(2), ranging from 32 m super(2)-500/m super(2) in 30 quadrats. Average valve length of quahogs in Greenwich Cove was 62 mm. Average density in Greenwich Bay was 78/m super(2), ranging from 8/m super(2)-184/m super(2). Average valve length was 31 mm. There was a slightly higher content of very fine-grained sands, silts, and clays in the Greenwich Cove sediments. Average Mercenaria) …