منابع مشابه
Relationship between amino acid changes in mitochondrial ATP6 and life-history variation in anguillid eels.
Mitochondrial genes are part of the oxidative phosphorylation pathway and important for energy production. Although evidence for positive selection at the mitochondrial level exists, few studies have investigated the link between amino acid changes and phenotype. Here we test the hypothesis that differences in two life-history related traits, migratory distance between spawning and foraging are...
متن کاملMisidentification of the migratory history of anguillid eels by Sr/Ca ratios of vaterite otoliths
Most fish otoliths are composed of aragonite, but occasionally they form a mosaic with its polymorph, vaterite. We found an unusual mosaic structure of extremely low strontium to calcium (Sr/Ca) ratio in the aragonite otoliths of European eels Anguilla anguilla. The mosaic crystal structure in the eel otolith appeared opaque under reflected light after EDTA etching and was confirmed to be a vat...
متن کاملLife History of American Eels from Western Newfoundland
—Biological data are limited for American eels Anguilla rostrata from the northern portion of the species’ geographic range. The biological characteristics of American eels from two sites in western Newfoundland varied by sex, maturation stage, and habitat. Female and male sexually mature (silver) eels from the Castors River were comparable in length range with eels reported from other Newfound...
متن کاملSalinity-linked growth in anguillid eels and the paradox of temperate-zone catadromy.
Temperate-zone anguillid eels use both saline (marine or brackish) and fresh waters during their continental phase, but use of fresh waters is paradoxical because on average these fishes grow more rapidly in saline than in fresh waters. Based on data from anguillid eels whose habitat-residency histories had been determined by Sr:Ca otolithometry, superiority of growth rates in saline water is m...
متن کاملOpportunistic spawning of tropical anguillid eels Anguilla bicolor bicolor and A. bengalensis bengalensis
Information on the spawning migration, spawning ecology and life history of tropical eels in the Indo-Pacific region is very limited. The physiological and morphological characteristics of tropical freshwater eels, Anguilla bicolor bicolor and A. bengalensis bengalensis collected in Malaysia were examined in relation to their downstream migration patterns. A total of 455 eels were collected ove...
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ژورنال
عنوان ژورنال: NIPPON SUISAN GAKKAISHI
سال: 2018
ISSN: 0021-5392,1349-998X
DOI: 10.2331/suisan.wa2541