Landlocked Fall Chinook Salmon Egg Storage for Delayed Fertilization
نویسندگان
چکیده
منابع مشابه
Color Photographic Index of Fall Chinook Salmon Embryonic Development and Accumulated Thermal Units
BACKGROUND Knowledge of the relationship between accumulated thermal units and developmental stages of Chinook salmon embryos can be used to determine the approximate date of egg fertilization in natural redds, thus providing insight into oviposition timing of wild salmonids. However, few studies have documented time to different developmental stages of embryonic Chinook salmon and no reference...
متن کاملAssociation of Fall-run Chinook Salmon Redds with Woody Debris in the Lower Mokelumne River, California
Surveys in the lower Mokelumne River during 1994-1995 indicated that fall-run chinook salmon, Oncorhynchus tshawytscha, redds associated with woody debris (WD) had smaller substrate and greater mean depths. Also, the proportion of redds associated with WD was negatively related to stream gradient. Female chinook salmon selected spawning sites containing WD in some instances. Woody debris may ma...
متن کاملEgg size and the adaptive capacity of early life history traits in Chinook salmon (Oncorhynchus tshawytscha)
Offspring traits are greatly influenced by maternal effects, and these maternal effects may provide an important pathway through which populations can adapt to changing thermal environments. We investigated the effect of egg size on the among- and within-population variation in early life history traits among introduced Great Lakes Chinook salmon (Oncorhynchus tshawytscha) populations under var...
متن کاملEgg size and emergence timing affect morphology and behavior in juvenile Chinook Salmon, Oncorhynchus tshawytscha
Variation in early life history traits often leads to differentially expressed morphological and behavioral phenotypes. We investigated whether variation in egg size and emergence timing influence subsequent morphology associated with migration timing in juvenile spring Chinook Salmon, Oncorhynchus tshawytscha. Based on evidence for a positive relationship between growth rate and migration timi...
متن کاملFloodplain farm fields provide novel rearing habitat for Chinook salmon
When inundated by floodwaters, river floodplains provide critical habitat for many species of fish and wildlife, but many river valleys have been extensively leveed and floodplain wetlands drained for flood control and agriculture. In the Central Valley of California, USA, where less than 5% of floodplain wetland habitats remain, a critical conservation question is how can farmland occupying th...
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ژورنال
عنوان ژورنال: Advances in Bioscience and Biotechnology
سال: 2020
ISSN: 2156-8456,2156-8502
DOI: 10.4236/abb.2020.115013