Yellowtail Flounder ( Limanda ferruginea) off the Northeastern United States: Implications of Movement among Stocks
Abstract Models and assessments of fishery resources typically assume that fish stocks are closed populations (i.e., that there is neither immigration nor emigration). In reality, some exchange among stocks often occurs, yet the implications of such exchanges have rarely been investigated. Yellowtai...
| Main Authors: | , |
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| Format: | Book Part |
| Language: | English |
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Oxford University PressNew York, NY
2004
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| Online Access: | http://dx.doi.org/10.1093/oso/9780195166460.003.0021 https://academic.oup.com/book/chapter-pdf/52323757/isbn-9780195166460-book-part-21.pdf |
| Summary: | Abstract Models and assessments of fishery resources typically assume that fish stocks are closed populations (i.e., that there is neither immigration nor emigration). In reality, some exchange among stocks often occurs, yet the implications of such exchanges have rarely been investigated. Yellowtail flounder, Limanda ferruginea, is an example of a fish species for which such movement has been documented (Royce et al. 1959, Lux 1963). The purpose of this chapter is to demonstrate the use of the RAMAS Metapop model (v. 4.0) as an exploratory tool to investigate the consequences of exchanges among stocks for the population dynamics of yellowtail flounder. Yellowtail flounder is one of the most important commercially exploited groundfish off the northeastern United States. It inhabits relatively shallow waters (20–100 m) in the northwest Atlantic from Labrador to the Chesapeake Bay. Spawning occurs in spring and early summer. The pelagic egg and larval stages last about 2 months, during which time they can be transported considerable distances by currents. Postlarval juveniles and adults are benthic and feed primarily on small arthropods and polychaete worms (Bigelow and Schroeder 1953, Collette and Klein-MacPhee 2002). |
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