I. Crooks results 13
· Newest (Page 1/1, per page 25)
Author: I. Crooks ×Clear All Filters
Search Results
Low interbasin connectivity in a facultatively diadromous fish: evidence from genetics and otolith chemistryNARA Subscribed
Southern smelts ( R etropinna spp.) in coastal rivers of A ustralia are facultatively diadromous, with populations potentially containing individuals with diadromous or wholly freshwater life histories. The presence of diadromous individuals is expected to reduce genetic structuring between river basins due to larval dispersal via the sea. We use otolith chemistry to distinguish between diadromous and nondiadromous life histor...
The chemical composition of common carp Cyprinus carpio asteriscus (vaterite) and lapillus (aragonite) otoliths from the same individual and reflecting the same growth period was measured to (1) determine whether there are differences in the uptake of trace metals (Mg:Ca, Mn:Ca, Sr:Ca and Ba:Ca ) and Sr isotope ratios ( 87 Sr: 86 Sr) in co‐precipitating lapilli and asterisci and (2) compare the ability of multi‐element and iso...
Sinks for nitrogen inputs in terrestrial ecosystems: a meta‐analysis of 15 N tracer field studiesNARA Subscribed
Effects of anthropogenic nitrogen (N) deposition and the ability of terrestrial ecosystems to store carbon (C) depend in part on the amount of N retained in the system and its partitioning among plant and soil pools. We conducted a meta‐analysis of studies at 48 sites across four continents that used enriched 15 N isotope tracers in order to synthesize information about total ecosystem N retention (i.e., total ecosystem 15 N r...
Use of otolith chemistry to examine patterns of diadromy in the threatened Australian grayling Prototroctes maraenaNARA Subscribed
Otolith chemical analyses (proton‐induced X‐ray emission and laser ablation inductively coupled plasma mass spectrometry) were used to examine patterns of diadromy in Australian grayling Prototroctes maraena collected from three rivers in south‐eastern Australia. Concentrations of Sr:Ca and Ba:Ca were measured in the sagittal otoliths of 25 fish and in water samples collected on two occasions from multiple sites within freshwa...
CorrectionNARA Subscribed
Previous1Next