The lipid status and feeding habits of yearlings of mykiss Parasalmo mykiss and coho salmon Oncorhynchus kisutch in autumn

Павлов, Д. С.; Немова, Н. Н.; Kirillov, P. I.; Kirillova, E. A.; Нефедова, З. А.; Vasil’eva, O. B.

doi:10.1134/s0032945210070064

Cited by 4 publications

(11 citation statements)

References 9 publications

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“…Lipid level ranges were 13%-14% and 22%-30% in the low and high lipid level groups, respectively, which were markedly higher than the 1%-10% reported in the other Russian study (Pavlov et al 2001b) and three studies on Oregon O. mykiss (Kammerer and Heppell 2013;McMillan et al 2012;Sloat and Reeves 2014). Pavlov et al (2007Pavlov et al ( , 2010aPavlov et al ( , 2010b indicated that lipid levels were high because the fish were gorging on salmon eggs. Consequently, in this case lipids were presumably no longer limiting to maturation.…”

Section: Growth Size and Lipid Contentcontrasting

confidence: 38%

“…McMillan (2009) would have found no difference in size between nonmaturing and maturing O. mykiss unless males and females were examined separately. This suggests that the findings of Liberoff et al (2014a) and Pavlov et al (2007Pavlov et al ( , 2010aPavlov et al ( , 2010b) may have been different if sex was considered. However, this may not necessarily be the case; Thériault and Dodson (2003) looked only at males and reported little if any difference in growth between resident and anadromous fish in a population of brook char.…”

Section: Growth Size and Lipid Contentmentioning

confidence: 88%

“…They predicted that the early emerging and fastestgrowing females would smolt at age 1 or age 2 and that only the latest-emerging and slowest-growing females would become residents, which generally matched empirical observations from these populations ). In addition, Liberoff et al (2014a) and Pavlov et al (2007Pavlov et al ( , 2010aPavlov et al ( , 2010b) also reported that larger individuals became anadromous, but these studies did not differentiate between sexes (Table 2).…”

Section: Growth Size and Lipid Contentmentioning

confidence: 99%

“…Migratory smolts from the Utkholok River of the Kamchatka Peninsula, which is dominated by anadromous fish, had higher lipid levels in the autumn than future residents (Table 2; Pavlov et al 2007Pavlov et al , 2010aPavlov et al , 2010b). Sexes were not differentiated.…”

Section: Growth Size and Lipid Contentmentioning

confidence: 99%

“…Kamchatka; Pavlov et al 2007Pavlov et al , 2010a,b Faster-growing fish predicted to become anadromous; residency predicted to increase with maximum size attainable in fresh water, freshwater survival, and when migration survival decreased.…”

Section: Oregon; Garrett 2013mentioning

confidence: 99%

See 4 more Smart Citations

Anadromy and residency in steelhead and rainbow trout (Oncorhynchus mykiss): a review of the processes and patterns

Kendall

McMillan

Sloat

et al. 2015

Can. J. Fish. Aquat. Sci.

210

224

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Abstract:Oncorhynchus mykiss form partially migratory populations with anadromous fish that undergo marine migrations and residents that complete their life cycle in fresh water. Many populations' anadromous components are threatened or endangered, prompting interest in understanding ecological and evolutionary processes underlying anadromy and residency. In this paper, we synthesize information to better understand genetic and environmental influences on O. mykiss life histories, identify critical knowledge gaps, and suggest next steps. Anadromy and residency appear to reflect interactions among genetics, individual condition, and environmental influences. First, an increasing body of literature suggests that anadromous and resident individuals differ in the expression of genes related to growth, smoltification, and metabolism. Second, the literature supports the conditional strategy theory, where individuals adopt a life history pattern based on their conditional status relative to genetic thresholds along with ultimate effects of size and age at maturation and iteroparity. However, except for a generally positive association between residency and high lipid content plus a large attainable size in fresh water, the effects of body size and growth are inconsistent. Thus, individuals can exhibit plasticity in variable environments. Finally, patterns in anadromy and residency among and within populations suggested a wide range of possible environmental influences at different life stages, from freshwater temperature to marine survival. Although we document a number of interesting correlations, direct tests of mechanisms are scarce and little data exist on the extent of residency and anadromy. Consequently, we identified as many data gaps as conclusions, leaving ample room for future research.Résumé : Les truites arc-en-ciel (Oncorhynchus mykiss) forment des populations partiellement migratrices incluant des individus anadromes qui effectuent des migrations marines et des individus résidents dont le cycle biologique se déroule entièrement en eau douce. Les éléments anadromes de nombreuses populations sont menacés ou en voie de disparition, ce qui suscite un intérêt envers la compréhension des processus écologiques et évolutionnaires qui sous-tendent l'anadromie et la résidence. Nous présentons une synthèse de l'information disponible dans le but de mieux comprendre les influences génétiques et environnementales sur les cycles biologiques d'O. mykiss, de cerner les lacunes critiques en matière de connaissances et de proposer des avenues de recherche future. L'anadromie et la résidence semblent témoigner d'interactions entre la génétique, l'état des individus et des influences environnementales. D'abord, de plus en plus d'études donnent à penser que les individus anadromes et résidents diffèrent sur le plan de l'expression des gènes associés à la croissance, à la smoltification et au métabolisme. Deuxièmement, la documentation appuie la théorie de la stratégie conditionnelle selon laquelle les individus adoptent un m...

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Section: Growth Size and Lipid Contentcontrasting

confidence: 38%

Section: Growth Size and Lipid Contentmentioning

confidence: 88%

Section: Growth Size and Lipid Contentmentioning

confidence: 99%

Section: Growth Size and Lipid Contentmentioning

confidence: 99%

Section: Oregon; Garrett 2013mentioning

confidence: 99%

See 3 more Smart Citations

Anadromy and residency in steelhead and rainbow trout (Oncorhynchus mykiss): a review of the processes and patterns

Kendall

McMillan

Sloat

et al. 2015

Can. J. Fish. Aquat. Sci.

210

224

View full text Add to dashboard Cite

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The puzzle of partial migration: Adaptive dynamics and evolutionary game theory perspectives

Leenheer

Mohapatra

Ohms

et al. 2017

Journal of Theoretical Biology

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We consider the phenomenon of partial migration which is exhibited by populations in which some individuals migrate between habitats during their lifetime, but others do not. First, using an adaptive dynamics approach, we show that partial migration can be explained on the basis of negative density dependence in the per capita fertilities alone, provided that this density dependence is attenuated for increasing abundances of the subtypes that make up the population. We present an exact formula for the optimal proportion of migrants which is expressed in terms of the vital rates of migrant and non-migrant subtypes only. We show that this allocation strategy is both an evolutionary stable strategy (ESS) as well as a convergence stable strategy (CSS). To establish the former, we generalize the classical notion of an ESS because it is based on invasion exponents obtained from linearization arguments, which fail to capture the stabilizing effects of the nonlinear density dependence. These results clarify precisely when the notion of a "weak ESS", as proposed in Lundberg (2013) for a related model, is a genuine ESS. Secondly, we use an evolutionary game theory approach, and confirm, once again, that partial migration can be attributed to negative density dependence alone. In this context, the result holds even when density dependence is not attenuated. In this case, the optimal allocation strategy towards migrants is the same as the ESS stemming from the analysis based on the adaptive dynamics. The key feature of the population models considered here is that they are monotone dynamical systems, which enables a rather comprehensive mathematical analysis.

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Maternal influence on early lipid content in an introduced partially anadromous population of Oncorhynchus mykiss

Liberoff

Leal

Vivar

et al. 2019

Journal of Fish Biology

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This study evaluated how the maternal migratory tactic in a partially anadromous population of Oncorhynchus mykiss may influence the early energetic status of their offspring. Total lipid content variation (% dry mass) of recently emerged fry caught in the Santa Cruz River, Argentina, was evaluated as a function of their maternal origin (anadromous v. resident) and fork length (L F ). Lipid content of fry decreased with L F and was higher for offspring of anadromous mothers. K E Y W O R D S alternative migratory tactics, lipid content, maternal effects, Oncorhynchus mykiss, Patagonia, trout Rainbow trout Oncorhynchus mykiss (Walbaum 1792) is one of several

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The lipid status and feeding habits of yearlings of mykiss Parasalmo mykiss and coho salmon Oncorhynchus kisutch in autumn

Cited by 4 publications

References 9 publications

Anadromy and residency in steelhead and rainbow trout (Oncorhynchus mykiss): a review of the processes and patterns

Anadromy and residency in steelhead and rainbow trout (Oncorhynchus mykiss): a review of the processes and patterns

The puzzle of partial migration: Adaptive dynamics and evolutionary game theory perspectives

Maternal influence on early lipid content in an introduced partially anadromous population of Oncorhynchus mykiss

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