Life history of American eel Anguilla rostrata: new insights from otolith microchemistry
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چکیده
منابع مشابه
Migratory behaviour and habitat use by American eels Anguilla rostrata as revealed by otolith microchemistry
The environmental history of American eels Anguilla rostrata from the East River, Nova Scotia, was investigated by electron microprobe analysis of the Sr:Ca ratio along transects of the eel otolith. The mean (±SD) Sr:Ca ratio in the otoliths of juvenile American eels was 5.42 × 10–3 ± 1.22 × 10–3 at the elver check and decreased to 2.38 × 10–3 ± 0.99 × 10–3 at the first annulus for eels that mi...
متن کاملDraft genome of the American Eel (Anguilla rostrata).
Freshwater eels (Anguilla sp.) have large economic, cultural, ecological and aesthetic importance worldwide, but they suffered more than 90% decline in global stocks over the past few decades. Proper genetic resources, such as sequenced, assembled and annotated genomes, are essential to help plan sustainable recoveries by identifying physiological, biochemical and genetic mechanisms that caused...
متن کاملKidney function of the American eel Anguilla rostrata.
Urine formation in the eel, acclimated to freshwater (FW) and seawater (SW) was studied. SW eels maintained higher plasma and urine osmotic and ionic concentrations than FW eels. Polyethylene-1,2-glycol-14C (PEG-14C) clearance was 29% greater than methoxy-inulin-3H clearance. PEG-14C clearance was considered to be the glomerular filtration rate (GFR). The GFR of SW and FW eels did not differ. U...
متن کاملMovement patterns of American eels (Anguilla rostrata) between salt- and freshwater in a coastal watershed, based on otolith microchemistry
Abstract Otolith strontium:calcium ratios were used to trace lifetime movements of American eels (Anguilla rostrata) captured in salt-water bays and adjoining freshwater ponds in Prince Edward Island, Canada. Eels were classiWed into migratory contingents based on their movement patterns. A pond with a pool-and-weir salmonid Wshway and a pond drained by a low-gradient channel contained eels tha...
متن کاملUnravelling the life history of Amazonian fishes through otolith microchemistry
Amazonian fishes employ diverse migratory strategies, but the details of these behaviours remain poorly studied despite numerous environmental threats and heavy commercial exploitation of many species. Otolith microchemistry offers a practical, cost-effective means of studying fish life history in such a system. This study employed a multi-method, multi-elemental approach to elucidate the migra...
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ژورنال
عنوان ژورنال: Aquatic Biology
سال: 2008
ISSN: 1864-7782,1864-7790
DOI: 10.3354/ab00018