Results 111 to 120 of about 11,513 (226)

River Wharfe fisheries monitoring report - summer 2001 [PDF]

open access: yes, 2001
This is a report on monitoring carried out in 2001 specifically in relation to effects of flows and abstractions on fisheries in the River Wharfe. The monitoring is a continuation of that started in relation to the Time Limited Abstraction Licences in ...

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Comparison of systems of biological indication approved during the course of the joint Anglo-Soviet investigations held under the auspices of the Institute of Hydrobiology of the Academy of Sciences of the Ukrainian SSR [PDF]

open access: yes, 1980
In accordance with the plan for joint Anglo-Soviet scientific and technical collaboration on environmental problems, the comparative evaluation of systems of hydrobiological analysis of the surface water quality started in 1977 at the Regional Laboratory
Abakumov, V.A., Polishchuk, V.V.
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Collagen of Lamprey. [PDF]

open access: yesActa Chemica Scandinavica, 1965
J. Pikkarainen   +5 more
openaire   +2 more sources

Threatened Fishes of Arkansas [PDF]

open access: yes, 1974
Intensive field collecting throughout Arkansas and a survey of literature and museum records revealed 37 fish species and subspecies in Arkansas to be threatened by human activities. Of these 37 threatened forms, seven are considered rare and endangered.
Robison, Henry W.
core   +2 more sources

Three new cryptic species of the lamprey genus Lampetra Bonnaterre, 1788 (Petromyzontiformes: Petromyzontidae) from the Iberian Peninsula. [PDF]

open access: yes, 2013
The Iberian Peninsula is a repository for biodiversity, presenting high levels of endemism in both plants and animals. In this peninsular region, brook lampreys confined to small, isolated river basins evolved in allopatry giving rise to evolutionary ...
Almeida, Pedro R.   +3 more
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Genetic diversity and population structure of the sea lamprey (Petromyzon marinus L.) across its distributional range [PDF]

open access: yes, 2016
Lampreys are a group of ancient vertebrates with 360 million years of existence. Throughout their evolution, they have acquired local adaptations to the colonized habitats, showing high plasticity and adaptive capacities.
Mateus, Catarina Sofia Pereira
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Lamprey Hemoglobin [PDF]

open access: yesJournal of Biological Chemistry, 2000
Yang Qiu   +4 more
openaire   +1 more source

Cognitive Relatives and Moral Relations [PDF]

open access: yes, 2001
The close kinship between humans, chimpanzees, gorillas, and orangutans is a central theme among participants in the debate about human treatment of the other apes. Empathy is probably the single most important determinant of actual human moral behavior,
Allen, Colin
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Brief Note: Ohio Lamprey, Ichthyomyzon bdellium (Petromyzonidae), in Ohio: A Review and Recent Records [PDF]

open access: yes, 1993
Author Institution: Ohio Department of Natural Resources, Division of Natural Areas and Preserves, and Department of Life Science, Otterbein CollegePrior to 1983 only isolated specimens of Ohio lamprey {Ichthyomyzon bdellium) were collected at a few ...
Barnes, Mark D.   +2 more
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