Fishery Bulletin back issues from January 2003:
The use of parasites in discriminating stocks of Pacific halibut (Hippoglossus stenolepis) in the northeast Pacific.
Jan 01, 2003; ... Abstract--The use of parasites as indicators of the stock structure of Pacific halibut (Hippoglossus stenolepis) in the northeast Pacific was investigated by using 328 adult (>55 cm fork length) halibut from 15 composite localities ranging from northern California to the northern Bering ...
Small-scale spatial and temporal variability in growth and mortality of fish larvae in the subtropical northcentral Gulf of Mexico: implications for assessing recruitment success.
Jan 01, 2003; ... Abstract--Extensive plankton collections were taken during seven September cruises (1990-93) along the inner continental shelf of the northcentral Gulf of Mexico (GOM). Despite the high productivity and availability of food during these cruises, significant small-scale spatial variability ...
Temporal changes in population density, fecundity, and egg size of the Hawaiian spiny lobster (Panulirus marginatus) at Necker Bank, Northwestern Hawaiian Islands.
Jan 01, 2003; ... Abstract--Fecundity (F, number of brooded eggs) and egg size were estimated for Hawaiian spiny lobster (Panulirus marginatus) at Necker Bank, Northwestern Hawaiian Islands (NWHI), in June 1999, and compared with previous (1978-81, 1991) estimates. Fecundity in 1999 was best described by ...
Impact of hatchery releases on the recreational fishery for Pacific threadfin (Polydactylus sexfilis) in Hawaii.
Jan 01, 2003; ... Abstract--The Pacific threadfin (Polydactylus sexfilis) is considered one of the premier Hawaiian food fishes but even with catch limits, seasonal closures, and size limits, catches have declined dramatically since the 1960s. It was identified as the top candidate species for stock ...
Yield- and biomass-per-recruit analysis for rotational fisheries, with an application to the Atlantic sea scallop (Placopecten magellanicus).
Jan 01, 2003; ... Abstract--A general model for yield-per-recruit analysis of rotational (periodic) fisheries is developed and applied to the sea scallop (Placopecten magellanicus) fishery of the northwest Atlantic. Rotational fishing slightly increases both yield- and biomass-per-recruit for sea scallops ...
Estimating long-term growth-rate changes of southern bluefin tuna (Thunnus maccoyii) from two periods of tag-return data.
Jan 01, 2003; ... Southern bluefin tuna (SBT) (Thunnus maccoyii) growth rates are estimated from tag-return data associated with two time periods, the 1960s and 1980s. The traditional von Bertalanffy growth model (VBG) and a two-phase VBG model were fitted to the data by maximum likelihood. The traditional ...
Life history of the Atlantic sharpnose shark (Rhizoprionodon terraenovae) (Richardson, 1836) off the southeastern United States.
Jan 01, 2003; ... Abstract--The life history of the Atlantic sharpnose shark (Rhizoprionodon terraenovae) was described from 1093 specimens collected from Virginia to northern Florida between April 1997 and March 1999. Longitudinally sectioned vertebral centra were used to age each specimen, and the ...
A general framework for integrating environmental time series into stock assessment models: model description, simulation testing, and example.
Jan 01, 2003; ... Abstract--We present a method to integrate environmental time series into stock assessment models and to test the significance of correlations between population processes and the environmental time series. Parameters that relate the environmental time series to population processes are ...
Seasonal distribution, abundance, and growth of young-of-the-year Atlantic croaker (Micropogonias undulatus) in Delaware Bay and adjacent marshes *.
Jan 01, 2003; ... Abstract--We examined the spatial and temporal distribution, abundance, and growth of young-of-the-year (YOY) Atlantic croaker (Micropogonias undulatus) in Delaware Bay, one of the northernmost estuaries in which they consistently occur along the east coast of the United States. Sampling ...
Age validation, growth, mortality, and additional population parameters of the goldband snapper (Pristipomoides multidens) off the Kimberley coast of northwestern Australia.
Jan 01, 2003; ... Abstract--Goldband snapper (Pristipomoides multidens) collected from commercial trap and line fishermen off the Kimberley coast of northwestern Australia were aged by examination of sectioned otoliths (sagittae). A total of 3833 P. multidens, 80-701 mm fork length (98-805 mm total length), ...
An approach to estimating rockfish biomass based on larval production, with application to Sebastes jordani *.
Jan 01, 2003; ... Abstract--An assessment of the total biomass of shortbelly rockfish (Sebastes jordani) off the central California coast is presented that is based on a spatially extensive but temporally restricted ichthyoplankton survey conducted during the 1991 spawning season. Contemporaneous samples of ...
Prey consumption of Steller sea lions (Eumetopias jubatus) off Alaska: how much prey do they require?
Jan 01, 2003; ... Abstract--The effects of seasonal and regional differences in diet composition on the food requirements of Steller sea lions (Eumetopias jubatus) were estimated by using a bioenergetic model. The model considered differences in the energy density of the prey, and differences in digestive ...
A Monte Carlo demographic analysis of the silky shark (Carcharhinus falciformis): implications of gear selectivity.
Jan 01, 2003; ... Demographic analysis has recently been used as a tool to approximate the dynamics of shark populations (Cailliet, 1992; Sminkey and Musick, 1996; Au and Smith, 1997; Cortes, 1999). The widespread use of demographic models for shark species, however, is hampered by a paucity of information ...
Indirect estimates of natural mortality rate for arrowtooth flounder (Atheresthes stomias) and darkblotched rockfish (Sebastes crameri).
Jan 01, 2003; ... Indirect estimates of instantaneous natural mortality rate (M) are widely used in stock assessment and fisheries management. They are essentially a form of meta-analysis, in which prior information on M and key life history parameters from a variety of stocks is used to estimate M for the ...
Use of parasites in stock identification of the deepwater redfish (Sebastes mentella) in the Northwest Atlantic.
Jan 01, 2003; ... An important aspect of fisheries management is the correct delineation of boundaries between fish stocks. With the recent collapse of the groundfish fishery in eastern Canada, redfish (Sebastes spp.) has become an increasingly important resource. Currently, the two most economically ...
Dive-depth distribution of loggerhead (Carretta carretta) and olive ridley (Lepidochelys olivacea) sea turtles in the central North Pacific: might deep longline sets catch fewer turtles?
Jan 01, 2003; ... The Hawaii-based longline fishery operates over a large area in the central North Pacific, from the equator to latitude 45[degrees]N, between longitudes 130[degrees]W and 180[degrees]W. In 2000, 125 vessels were active in the fishery, producing total landings estimated at 24 million pounds ...
Age-validation of a leopard shark (Triakis semifasciata) recaptured after 20 years.
Jan 01, 2003; ... On 10 July 1999, vertebrae bearing an oxytetracycline (OTC) time mark were retrieved from a tagged leopard shark (Triakis semifasciata) recaptured in San Francisco Bay, CA, after being at liberty for almost 20 years. An additional long-term leopard shark tag return was received in June ...