Declivity in steelhead (Oncorhynchus mykiss) recruitment at the Keogh River over the past decade
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چکیده
منابع مشابه
Over the falls? Rapid evolution of ecotypic differentiation in steelhead/rainbow trout (Oncorhynchus mykiss).
Adaptation to novel habitats and phenotypic plasticity can be counteracting forces in evolution, but both are key characteristics of the life history of steelhead/rainbow trout (Oncorhynchus mykiss). Anadromous steelhead reproduce in freshwater river systems and small coastal streams but grow and mature in the ocean. Resident rainbow trout, either sympatric with steelhead or isolated above barr...
متن کاملSequencing and characterization of the anadromous steelhead (Oncorhynchus mykiss) transcriptome.
Identifying the traits that differ between hatchery and wild fish may allow for pragmatic changes to hatchery practice. To meet those ends, we sequenced, assembled, and characterized the anadromous steelhead (Oncorhynchus mykiss) transcriptome. Using the Illumina sequencing platform, we sequenced nearly 41million 76-mer reads representing 3.1 Gbp of steelhead transcriptome. Upon final assembly,...
متن کاملThe Effect of Hatchery Release Strategy on Marine Migratory Behaviour and Apparent Survival of Seymour River Steelhead Smolts (Oncorhynchus mykiss)
Early marine migratory behaviour and apparent survival of hatchery-reared Seymour River steelhead (Oncorhynchus mykiss) smolts was examined over a four year period (2006-2009) to assess the impact of various management strategies on improving early marine survival. Acoustically tagged smolts were released to measure their survival using estuary and coastal marine receivers forming components of...
متن کاملTissue-specific expression of rhamnose-binding lectins in the steelhead trout (Oncorhynchus mykiss).
Tissue-specific expression of three L-rhamnose-binding lectins, named STL1, STL2, and STL3, in the steelhead trout (Oncorhynchus mykiss) was investigated. STL2 and STL3 mRNAs were restricted in the oocytes. In contrast, STL1 mRNA was detected only in the liver. The transcription of STL2 and STL3 started in previtellogenic oocytes. These results showed distinct expression profiles of rhamnose-bi...
متن کاملMigration depths of adult steelhead Oncorhynchus mykiss in relation to dissolved gas supersaturation in a regulated river system.
Adult steelhead Oncorhynchus mykiss tagged with archival transmitters primarily migrated through a large river corridor at depths >2 m interspersed with frequent but short (<5 min) periods closer to the surface. The recorded swimming depths and behaviours probably provided adequate hydrostatic compensation for the supersaturated dissolved gas conditions encountered and probably limited developm...
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ژورنال
عنوان ژورنال: Canadian Journal of Fisheries and Aquatic Sciences
سال: 2000
ISSN: 0706-652X,1205-7533
DOI: 10.1139/f99-243