A population profile for Atlantic hagfish , Myxine glutinosa fl . ) , in the Gulf of Maine . Part I : Morphometries and reproductive state
نویسنده
چکیده
-Populations of Atlantic hagfish, Myxine glutinosa (L.), are found throughout the Gulf of Maine in soft-bottom substrates at depths greater than 50 m. This report presents data on the sizes. weights, morphometric characters, and reproductive states for specimens collected at a study site approximately 50 km offshore in the Gulf of Maine. Limited comparisons with data from specimens collected elsewhere suggest that this data set is representative of hagfish populations within the inner Gulf of Maine. The small number of eggs produced (less than 30 per female), the large number ofanimals without macroscopically visible gonadal tissue (25% of the population), and the small number of males «6% ofthe population). gravid females (<1%1. and postovulatory females «5%) suggest that hagfish have limited reproductive potential. This raises serious questions about the long-term viability of the New England eelskin fishery. 311 A population profile for Atlantic hagfish, Myxine glutinosa fl.), in the Gulf of Maine. Part I: Morphometries and reproductive state
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High matrix interference affecting detection of PAH metabolites in bile of Atlantic hagfish (Myxine glutinosa) used for biomonitoring of deep-water oil production.
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