نتایج جستجو برای: alosa brashnikovi

تعداد نتایج: 269  

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2000
A N Popper

The past decade has seen a wealth of new data on the auditory capabilities and mechanisms of fishes. We now have a significantly better appreciation of the structure and function of the auditory system in fishes with regard to their peripheral and central anatomy, physiology, behaviour, sound source localization and hearing capabilities. This paper deals with two of the newest of these findings...

Journal: :Proceedings. Biological sciences 2012
Matthew R Walsh John P DeLong Torrance C Hanley David M Post

It is becoming increasingly clear that intraspecific evolutionary divergence influences the properties of populations, communities and ecosystems. The different ecological impacts of phenotypes and genotypes may alter selection on many species and promote a cascade of ecological and evolutionary change throughout the food web. Theory predicts that evolutionary interactions across trophic levels...

Journal: :Folia parasitologica 2005
Roman Kuchta Vladimíra Hanzelová Andy P Shinn Larisa G Poddubnaya Tomás Scholz

Two fish cestodes, the little-known Eubothrium fragile (Rudolphi, 1802) and E. rugosum (Batsch, 1786), the type species of the genus Eubothrium Nybelin, 1922, are redescribed on the basis of new material from twaite shad, Alosa fallax (Lacépède, 1803), from England and burbot, Lota lota (Linnaeus, 1758), from Russia, respectively. The tapeworms are compared with two other species of the genus, ...

Journal: :Proceedings. Biological sciences 2014
Magnus Huss Jennifer G Howeth Julia I Osterman David M Post

Evolutionary diversification within consumer species may generate selection on local ecological communities, affecting prey community structure. However, the extent to which this niche construction can propagate across food webs and shape trait variation in competing species is unknown. Here, we tested whether niche construction by different life-history variants of the planktivorous fish alewi...

2008
JOEL C. HOFFMAN DEBORAH A. BRONK JOHN E. OLNEY

Our objective was to quantify the contribution of autochthonous, locally-produced phytoplankton, and allochthonous, terrestrial-derived organic matter (OM) to the production of young-of-year (YOY) American shad (Alosa sapidissima) using stable isotopes. We measured the carbon and nitrogen stable isotope composition of YOY American shad in the tidal fresh water of the Mattaponi River, a tributar...

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