Effects of the 1997-1998 El Niño on early-juvenile Pacific hake Merluccius productus: age, growth, abundance, and diet in coastal nursery habitats Public Deposited

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  • The effects of anomalous oceanographic conditions on growth, abundance, spawn-date distributions, and diet of early-juvenile Pacific hake Merluccius productus were examined in nursery grounds off the coast of central California, USA. Spring collections from 2 consecutive years of El Nino conditions, 1997 and 1998, 1 year of La Nina conditions, 1999, and 1 non-anomalous year, 1995, were examined. During spring of 1997, the first year of the El Nino event, early-juvenile hake appeared to compensate for anomalous ocean conditions by ingesting a wider variety of zooplankton taxa and sizes. Continuation of El Nino conditions through spring 1998 appeared to have a strong impact on the 1998 year class. Very low levels of macrozooplankton biomass in February 1998 resulted in poor growth and reduced survival of hake from early spawns.
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  • Grover, J. J., Buckley, T. W., & Woodbury, D. (2002, September 12). Effects of the 1997-1998 El Niño on early-juvenile Pacific hake Merluccius productus: age, growth, abundance, and diet in coastal nursery habitats. Marine Ecology Progress Series, 240, 235-247.
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  • description.provenance : Submitted by Judy Mullen (judy.mullen@oregonstate.edu) on 2011-12-06T23:52:21Z No. of bitstreams: 1 EffectsOfThe1997-1998ElNino.pdf: 399814 bytes, checksum: 402d22afa8890d7b02a68ca3c27003ca (MD5)
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