Fishery Bulletin

Contents 1) the dangers of ignoring metapopulation structure for the conservation salmonids 2) age and growth estimates for New Zealand hapuku 3) an analysis of the possible utility of time-area closures to minimize billfish bycatch by U.S. pelagic longlines 4) age validation and analysis of ageing error from marked and recaptured sablefish, Anoplopoma fimbria 5) distribution and abundance of shortraker rockfish, Sebastes borealis, and rougheye rockfish, S. aleutianus, determined from a manned submersible 6) nutritional dynamics during embryonic development in the viviparous genus Sebastes and their application to the assessment of reproductive success 7) metabolic rate in relation to temperature and swimming speed, and the cost of filter feeding in Atlantic menhaden, Brevoortia tyrannus 8) the relation between otolith size and larval size at hatching for Atlantic cod, Gadus morhua 9) age validation and growth of larval and juvenile haddock, Melanogrammus oeglefinus, and pollock, Pollachius virens, on the Scotian Shelf 10) diel vertical migration by yellowtail rockfish, Sebastes flavidus, and its impact on acoustic biomass estimation 11) variability in reactions of Pacific harbor seals, Phoca vitulina richardsi, to disturbance 12) age, growth, longevity, and mortality of blackcheek tonguefish, Symphurus plagiusa (Cynoglossidae: Pleuronectiformes), in Chesapeake Bay, Virginia 13) age distribution and growth of greater amberjack, Seriola dumerili, from the north-central Gulf of Mexico 14) mercury levels in four species of sharks from the Atlantic coast of Florida 15) a unique shell marker in juvenile, hatchery-reared individuals of the softshell clam, Mya arenaria 16) Occurrence of neonate and juvenile sandbar sharks, Carcharhinius plumbeus, in the northeastern Gulf of Mexico 17) different residence times of yellowfin tuna, Thunnus albacares, and bigeye tuna, T. obesus, found in mixed aggregations over a seamount 18) accuracy of at-sea commercial size grading of tiger prawns (Penaeus esculentus and P. semisulcatus) in the Australian northern prawn fishery 19) digestive tract parasites in rhynchoteuthion squid paralarvae, particularly in Illex argentinus (Cephalopoda: Ommastrephidae) 20) diet of Pacific sleeper shark, Somniosus pacificus, in the Gulf of Alaska