Physiological mechanism of osmoregulatory adaptation in anguillid eels
نویسندگان
چکیده
منابع مشابه
Salinity-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...
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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 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...
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 کاملOsmoregulatory Parameters of Asian sea bass (Lates calcarifer) during adaptation in Freshwater
In the present study, the adaptation of Asian sea bass (lates calcarifer) was investigated in fresh water using physiological parameters of osmoregulation including: the plasma levels of thyroid hormones and cortisol, gill Na+/ K+-ATPase activity and plasma concentrations of sodium and chloride. For this purpose, 60 fish were distributed in three 300 L tanks with a density of 20 fish per tank. ...
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ژورنال
عنوان ژورنال: Fish Physiology and Biochemistry
سال: 2018
ISSN: 0920-1742,1573-5168
DOI: 10.1007/s10695-018-0464-6