Results 111 to 120 of about 119,221 (309)

Crosstalk between thyroid hormones and the central corticotropin‐releasing factor system in Atlantic salmon

open access: yesJournal of Neuroendocrinology, EarlyView.
The corticotropin‐releasing factor (CRF) system plays a key role in centrally regulating thyroid hormone (TH) synthesis in non‐mammalian vertebrates, but interactions between THs and the CRF system remain poorly understood in fish. Here, we report that THs directly affect transcription of several CRF system components across different hypophysiotropic ...
Brett M. Culbert   +2 more
wiley   +1 more source

tilapia culture in seawater

open access: yesEge Journal of Fisheries and Aquatic Sciences, 2006
Tilapialar esas olarak tropikal ülkelerde yetiştirilen ekonomik öneme sahip tatlı su balıklarıdır. Bununla birlikte değişik tuzluluk derecelerine gösterdikleri toleransları sayesinde, bu türün yetiştiriciliği, tatlı suyun yanı sıra, deniz ve acı su ortamlarında da yapılır hale gelmiştir.
openaire   +3 more sources

Synergistic effects between omnivorous filter-feeding fish and nutrient enrichment on algal biomass

open access: yesActa Limnologica Brasiliensia, 2015
Aim: The Nile tilapia - Oreochromis niloticus(Linnaeus 1758) - is an exotic omnivorous filter-feeding fish that has been stocked for three decades in man-made lakes of Northeastern Brazil.
Leonardo Henrique Teixeira   +1 more
doaj   +1 more source

Investigating the behavioral responses of nektonic and benthic tadpoles elicited by the presence of a predatory nektonic fish

open access: yesJournal of Zoology, EarlyView.
Different defensive strategies are used by tadpoles to avoid or escape from predators, and it is possible that differences in the microhabitat of prey and predators influence the defensive strategies used by tadpoles. Therefore, we experimentally tested whether the presence of a nektonic fish predator (Oreochromis niloticus) reduces the time of ...
Y. C. M. de Souza   +3 more
wiley   +1 more source

Tilapia for Biological Control of Giant Salvinia [PDF]

open access: yes, 2003
In August 1999, giant salvinia ( Salvinia molesta Mitchell) was found along the lower Colorado River in irrigation drainages. To investigate the slow spread and apparent control of giant salvinia in this region, the herbivorous fish, tilapia ...
Fitzsimmons, Kevin   +2 more
core  

3D Genome Constrains Breakpoints of Inversions That Can Act as Barriers to Gene Flow in the Stickleback

open access: yesMolecular Ecology, EarlyView.
ABSTRACT DNA within the nucleus is organised into a well‐regulated three‐dimensional (3D) structure. However, how such 3D genome structures influence speciation processes remains largely elusive. Recent studies have shown that 3D genome structures influence mutation rates, including the occurrence of chromosomal rearrangement.
Yo Y. Yamasaki   +4 more
wiley   +1 more source

A Chromosome Inversion Creates a Supergene for Sex and Colour in Lake Malawi Cichlids

open access: yesMolecular Ecology, EarlyView.
ABSTRACT Cichlid fishes have the highest rates of evolutionary turnover of sex chromosomes among vertebrates. Many large structural polymorphisms in the radiation of cichlids in Lake Malawi are associated with sex chromosomes and may also carry adaptive variation.
Kristen A. Behrens   +10 more
wiley   +1 more source

Structural modelling of cost overrun factors in construction industry [PDF]

open access: yes, 2013
Construction industry contributes significantly in improving socio-economic growth of a country. However, this industry usually faces chronic problems such as time overrun, cost overrun, poor quality and others.
Memon, Aftab Hameed
core  

Importance of proteins and mitochondrial changes as freshness indicators in fish muscle post‐mortem

open access: yesJournal of the Science of Food and Agriculture, Volume 105, Issue 10, Page 5163-5172, 15 August 2025.
Abstract Evaluating protein and mitochondrial alterations post‐mortem can contribute to determining correlations between fish‐processing parameters and ultimate fish muscle quality. The myofibrillar protein alteration during rigor mortis directly affects the texture of fish muscle.
Nima Hematyar   +2 more
wiley   +1 more source

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