Sentence examples for maturation in fish from inspiring English sources

17α,20β-Dihydroxy-4-pregnen-3-one (17α,20βDiOH-P 17α,20βDiOH-P21α-trihydroxy-4-pregnen-3-one (20βOH-RSS) and the critical hormones required for oocyte maturation in fish.

These studies have looked at long-term shifts in maturation in fish stocks with naturally periodic maturation process [7] [8], so that the logistic regression based discrete time PRNs have been adequate in describing maturation.

Indeed, maturation in fish seems to be associated with an increase in brain stem size (Brandstatter and Kotrschal 1990).

Mounting evidence confirms that hepatic biosynthetic processes are essential for female sexual maturation in fish, which is directly controlled by estrogens.

It is also known that intraspecific competition from adults can depress juvenile growth rates, and therefore possibly delay maturation in fish populations (e.g., van Kooten et al. 2007).

This may be due to delayed sexual maturation in fish that had undergone infection (potentially as a result of retarded growth and reduced body reserves).

In particular, long-term environmental trends (e.g., increasing sea surface temperatures) have coincided with increasing exploitation in many fish stocks, and these environmental factors can influence maturation in fishes (e.g., Cox and Hinch 1997; Shuter et al. 2009).

Maturation rates in fish fed the low lipid experimental feed and the higher lipid commercial feed at the same ration level (64%) were similar suggesting that dietary (body) lipid level had no effect on maturation in relatively fast growing juvenile Chinook salmon.

Although maturation patterns in fish populations often differ between males and females, it is unknown whether some or all loci coding for the PMRN are indeed sex-linked.

Changes in feeding behavior and regulation of energy expenditure are expected to accompany the maturation process in fish, particularly in species such as A. anguilla that allocate a lot of resources to reproduction [ 35].

Further research efforts concerning the cellular pathways involved during spermatogenesis recrudescence are thus necessary if we are to understand and control testis maturation in teleost fish species.