Abstracts - faqs.org

Abstracts

Zoology and wildlife conservation

Search abstracts:
Abstracts » Zoology and wildlife conservation

Do all freshwater eels migrate?

Article Abstract:

The ratio of strontium (Sr) and calcium (Ca) in the otoliths of eels has been used to study the proportion of time spent in freshwater and ocean habitats. The technique has also been used to show that Atlantic and Pacific eels from the ocean have spent all their life there and not migrated into fresh water. This suggests that sea populations contribute mainly to future recruitment, and that freshwater eels may not be catadromous.

Author: Tsukamoto, Katsumi, Nakai, Izumi, Tesch, V.W.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
Fish migration

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA


A new radiocarbon evolution and the dispersal of modern humans in Eurasia

Article Abstract:

Radiocarbon dating has been fundamental to the study of human cultural and biological development over the past 50,000 years. Two methodology developments in radiocarbon dating show that the speed of colonization of Eurasia by modern humans was more rapid than previously believed, and that their period of coexistence with the preceding Neanderthal was shorter.

Author: Mellars, Paul
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
United States, Eurasia, Ontogeny

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA


Spawning of eels near a seamount

Article Abstract:

The Japanese eel spawns near seamounts west of the Mariana Islands, close to the time of the new moon which is revealed on the basis of data collected on the eel larvae leptocephali since the 1940s and analysis of their hatching dates. The location is verified after collection and analysis of the newly hatched pre-leptocephali.

Author: Tsukamoto, Katsumi
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
Japan, Physiological aspects, Behavior, Spawning

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA


Subjects list: Eels, Research, Radiocarbon dating
Similar abstracts:
  • Abstracts: Emigration to new habitats by voles: The cost of dispersal paradox. Optimal migration strategies in animals that run: a range equation and its consequences
  • Abstracts: The role of evolution in the emergence of infectious diseases
  • Abstracts: ATP is a mediator of chemosensory transudation in the central nervous system. Trichomonas hydrogenosomes contain the NADH dehydrogenase module of mitochondrial complex I
  • Abstracts: Effects of helicopter noise on Mexican spotted owls. Dispersal of juvenile cougars in fragmented habitat. Influence of vegetation, topography, and roads on cougar movement in southern California
  • Abstracts: A comparative approach to vocal learning: intraspecific variation in the learning process. Prey plumage adaptation against falcon attack
This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.
Some parts © 2023 Advameg, Inc.