Tom P. Quinn's research while affiliated with University of Washington Seattle and other places

Publications (3)

Article
Full-text available
The trophic ecology (diet and head morphology) and migration patterns of two closely related salmonid fishes, Arctic char (Salvelinus alpinus (L., 1758)) and Dolly Varden (Salvelinus malma (Walbaum, 1792)), were examined in tributaries of Lake Aleknagik, southwestern Alaska, to test for differentiation between species. Schoener’s index of proportio...
Article
This study employed a combination of otolith microchemistry to indicate the recent habitat use, and plasma concentrations of the hormone insulin-like growth factor 1 (IGF1) as an index of recent growth rate, to demonstrate differences in growth and habitat use by Dolly Varden Salvelinus malma occupying both freshwater and estuarine habitats in sout...
Article
Full-text available
Numerous studies of population genetics in salmonids and other anadromous fishes have revealed that population structure is generally organized into geographic hierarchies (isolation by distance), but significant structure can exist in proximate populations due to varying selective pressures (isolation by adaptation). In Chignik Lakes, Alaska, anad...

Citations

... Washout data collected before and after sample ablation were removed and raw counts were background-adjusted, then converted to ratios to 43 Ca in the otolith matrix, and then molar ratios of 86 Sr: 43 Ca in mmol·mol −1 and 138 Ba: 43 Ca in μmol·mol −1 (Bond et al. 2015). To verify that the transect data had not missed a maternal signal laid down during vitellogenesis at the otolith core, we also drilled 24 sample cores on an iCAP Qnova Series ICP-MS (ThermoFisher Scientific, Bremen, Germany) at University of Washington (Dennert et al. 2016). For this ablation, spot size was larger (85 μm) to ensure capture of core material. ...
... Insulin-like growth factor (IGF)-I is a peptide hormone that circulates in the blood and is an integral component of the endocrine growth system in fishes (Wood et al. 2005;Reinecke 2010). Recent laboratory work has demonstrated that IGF-I is correlated to growth in fish (Beckman et al. 1998;Pérez-Sánchez and Le Bail 1999;Dyer et al. 2004;Picha et al. 2008a, b;Beckman 2011), and several field studies have demonstrated that IGF-I measures provide data relevant to ecological process affecting juvenile salmon in marine environments (Beckman et al. 2004a;Ferriss et al. 2014;Bond et al. 2014;Kaneko et al. 2015Kaneko et al. , 2019Chamberlin et al. 2017;Wechter et al. 2017). ...
... The primary event in the history of the Lake Kronotskoe charrs radiation could have been the formation of the waterbody, when a lava flow blocked the valley about 12.000 years ago (Braitseva et al., 1995). The flooding of ancient spawning tributaries and watercourse paths should have disorganized the ancestral homing patterns that are known to be strongly developed in S. malma (Armstrong, 1974;Bond et al., 2014;Sandstrom & Harwood, 2002). Once the basin had been completely shaped, the landlocked charrs found themselves in a lacustrine environment with the rearranged tributaries' net and newly formed trophic resources providing novel opportunities for the specialization. ...