Age Determination Methods for Northwest Atlantic Species PDF Download
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Languages : en
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The Northeast Fisheries Science Center presents the full text of "Age Determination Methods for Northwest Atlantic Species," edited by F.P. Almeida and T.F. Sheehan. The report details age determination for fish species, such as redfish, silver hake, witch flounder, black sea bass, Atlantic cod, pollock, yellowtail flounder, and Atlantic herring, among others.
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Languages : en
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Book Description
The Northeast Fisheries Science Center presents the full text of "Age Determination Methods for Northwest Atlantic Species," edited by F.P. Almeida and T.F. Sheehan. The report details age determination for fish species, such as redfish, silver hake, witch flounder, black sea bass, Atlantic cod, pollock, yellowtail flounder, and Atlantic herring, among others.
Author: United States. National Marine Fisheries Service
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Category : American plaice
Languages : en
Pages : 144
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The successful application of techniques to enhance detection of age marks in biological specimens is of vital importance in fisheries research. This manual documents age determination techniques used by staff at the Woods Hold Laboratory, National Marine Fisheries Service. General information on procedures for preparing anatomical structures is described, together with criteria used to interpret growth patterns and assign ages. Annotated photographs of age structures are provided to illustrate criteria. Detailed procedures are given for the following species: Atlantic herring (Clupea harengus), haddock (Melanogrammus aeglefinus), Atlantic cod (Gadus morhua), pollock (Pollachius virens), silver hake (Merluccius billinearis), red hake (Urophycis chuss), black sea bass (Centropristis striata), weakfish (Cynoscion regalis), Atlantic mackerel (Scomber scombrus), butterfish (Peprilus triacanthus), redfish (Sebastes fasciatus), summer flounder (Paralichthys dentatus), winter flounder (Pseudopleuronectes americanus), witch flounder (Glyptocephalus cynoglossus), American plaice (Hippoglossoides platessoides), yellowtail flounder (Limanda ferruginea), surf clam (Spisula solidissima), and ocean quahog (Artica islandica).
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Languages : en
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The Northeast Fisheries Science Center presents the section of "Age Determination Methods for Northwest Atlantic Species," on Atlantic cod, Gadus morhua, by J. Penttila. A major problem in age determination of cod is distinguishing between the settling check and the first annulus. Migration pattern indicate movement toward the south and west in winter and early spring and towards the north and east in late spring and summer.
Author: J. Penttila (ed.)
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ISBN:
Category :
Languages : en
Pages : 135
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Languages : en
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The Northeast Fisheries Science Center presents the section of "Age Determination Methods for Northwest Atlantic Species," on redfish, Sebastes fasciatus, by V.M. Gifford and M.K. Crawford. Redfish is a slow-growing, long-lived fish. Both scales and otoliths have been used to determine the age of redfish. Age determinations are made by counting annuli from the nucleus to the dorsal edge.
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Languages : en
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The Northeast Fisheries Science Center presents the section of "Age Determination Methods for Northwest Atlantic Species," on red hake, Urophycis chuss, by L.M. Dery. Dery includes the descriptions of otoliths of red hake for determining the age of the fish.
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Languages : en
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The Northeast Fisheries Science Center presents the section of "Age Determination Methods for Northwest Atlantic Species," on weakfish, Cynoscion regalis, by G.R. Shepherd. Weakfish is indigenous to the eastern United States coastal waters and migrates seasonally. Shepherd discusses the use of scales to determine the age of weakfish.
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Category : Retail trade
Languages : en
Pages :
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Category :
Languages : en
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The Northeast Fisheries Science Center presents the section of "Age Determination Methods for Northwest Atlantic Species," on pollock, Pollachius virens, by K.G. Andrade and C.P. Smith. Pollock is found on both sides of the North Atlantic. It spawns in the winter and most attain sexual maturity in three or four years. Scales and otoliths have been used for age determinations of pollock.
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Languages : en
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The Northeast Fisheries Science Center presents the section of "Age Determination Methods for Northwest Atlantic Species," on American plaice, Hippoglossoides platessoides, by L.M. Dery. American plaice is a sedentary, slow-growing flat fish generally distributed in deep water. The section highlights the growth patterns for the American plaice species.
