Size-dependent thermal preferences in a pelagic fish

Morita, Kentaro; Fukuwaka, Masa‐aki; Tanimata, Naoki; Yamamura, Orio

doi:10.1111/j.1600-0706.2009.18125.x

Cited by 92 publications

(113 citation statements)

References 43 publications

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“…The observed increase in CF was maximal in the small, and minimal in the large BSCs (Fig. 5), consistent with a decrease in the optimal temperature for growth with increasing body weight (Morita et al 2010). Only the largest BSC showed a decreasing trend in body condition through the 20 yr studied.…”

Section: Variation In Conditionsupporting

confidence: 74%

Interannual variation in diets of walleye pollock in the Doto area, in relation to climate variation

Yamamura¹,

Funamoto²,

Chimura³

et al. 2013

Mar. Ecol. Prog. Ser.

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Interannual variation in the diet of walleye pollock Theragra chalcogramma along the southeastern coast of Hokkaido Island (Doto area) was analyzed using >15 000 specimens collected in the periods 1989−1992 and 1995−2011, in relation to oceanographic variables. The area experienced a warm period from 1998 to 2002, which was preceded and followed by cold periods. An apparent shift in diet occurred between the first cold period and the warm period. Appendicularians (larvaceans) became an important summer prey for small-sized pollock (≤300 mm SL) in addition to copepods and euphausiids, which were also important before the onset of the warm period. In medium-and large-sized pollock, an abrupt decrease in mesopelagic fishes (mainly myctophid Diaphus theta) was observed in stomach contents 3 yr after the 1997/1998 climate regime shift, possibly reflecting a recruitment failure of D. theta. Appendicularians, cannibalism and anchovy Engraulis japonica compensated for the disappearance of mesopelagic fishes from the diet. During autumn and winter, a similar shift from micronekton (mainly D. theta and firefly squid Watasenia scintillans) to euphausiids (exclusively Euphausia pacifica) and cannibalism was found between 2000 and 2001. Although diet changes lagged the onset of the warm period, condition factor increased immediately after the regime shift. This inconsistency may be attributable to the bioenergetic response of juvenile pollock, which attain better growth at warmer temperatures. Thus, in the Doto area, the effect of climate variation on the survival of pollock seemed to be limited, due to their flexible feeding behaviors.

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Section: Variation In Conditionsupporting

confidence: 74%

Interannual variation in diets of walleye pollock in the Doto area, in relation to climate variation

Yamamura¹,

Funamoto²,

Chimura³

et al. 2013

Mar. Ecol. Prog. Ser.

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“…Thus, this higher thermal effect on growth in the first year, whether it be direct or indirect, together with an expected higher prey productivity in warmer rivers, would establish spatial differences in growth between the rivers from the first year of life. In addition, ontogenetic changes in optimal temperature for growth, together with the improved ability of older individuals to move toward preferred temperature areas (Morita et al 2010), may progressively diminish the effect of water temperature on growth performance throughout the life span. Furthermore, the length of age-0 trout was influenced by a nonlinear effect of maximum water temperature.…”

Section: Discussionmentioning

confidence: 99%

Unravelling the effects of water temperature and density dependence on the spatial variation of brown trout (Salmo trutta) body size

Parra

Almodóvar

Ayllón

et al. 2012

Can. J. Fish. Aquat. Sci.

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This study looks at the relative influence of water temperature and density dependence on the spatial variation in body size of 126 brown trout (Salmo trutta) cohorts from 12 Iberian rivers over a 12-year period. Mean cohort mass and length of age groups 0+ to 2+ varied significantly among sampling sites because of the concurrent effect of water temperature and density dependence. Density in suitable habitat had a limiting role that influenced potential maximum growth of cohorts, and water temperature differentiated these cohorts in two groups of sites with high and low potential maximum growth. Water temperature had a positive cumulative effect on body size of all age classes. However, body size of age-0 trout was nonlinearly influenced by short-term exposure to extreme water temperature. Thus, extremely high temperatures became a limiting factor and had deleterious effects on growth. There were intracohort and intercohort effects of density dependence throughout the life span, which were mainly due to the density in the available suitable habitat of trout of the same age or older. The present study supports the hypothesis that both density-dependent and density-independent processes are crucial for the understanding of population dynamics and that their relative importance varies across scales of space and time.Résumé : L'étude s'intéresse à l'influence relative de la température de l'eau et de la dépendance de la densité sur les variations spatiales de la taille du corps pour 126 cohortes de truite brune (Salmo trutta) de 12 rivières ibériennes, sur une pé-riode de 12 ans. La masse des cohortes et la longueur moyenne des groupes d'âge de 0+ an et 2+ ans variaient de manière significative selon le site de prélèvement, en raison des effets concomitants de la température de l'eau et de la dépendance de la densité. La densité dans les habitats convenables, jouait un rôle limitant qui influait sur la croissance maximum potentielle des cohortes, alors que la température de l'eau différenciait ces cohortes selon deux groupes de localités, qui présen-taient des croissances maximums potentielles élevée et faible, respectivement. La température de l'eau avait un effet cumulatif positif sur la taille du corps pour toutes les classes d'âges. Toutefois, l'exposition de courte durée à des températu-res d'eau extrêmes avait un effet non linéaire sur la taille du corps des truites de 0 an. Les températures extrêmement éle-vées devenaient ainsi un facteur limitant et avaient des effets néfastes sur la croissance. Des effets intracohorte et intercohorte de la dépendance de la densité étaient présents tout au long de la durée de vie, ces effets étant principalement dus à la densité dans l'habitat convenable disponible de truites du même âge ou plus vieilles. L'étude appuie l'hypothèse voulant que des processus dépendants et indépendants de la densité soient nécessaires pour expliquer la dynamique des populations et que l'importance relative de ces deux types de processus varie en fonction de l'échelle spatiale et temporelle.[Tra...

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“…Apparent changes in weight-at-age with temperature reflect both the direct physiological relationship of growth with temperature (typically dome-shaped, with a thermal optimum; Hanson et al, 1997;Holsman and Aydin, 2015), climate-driven shifts to prey quality and quantity (e.g., Heinz et al, 2013), and annual variation in size-selective mortality that may co-vary with temperature (e.g., Coyle et al, 2011;Hunt et al, 2011;Heinz et al, 2013). Our current approach could be improved by predicting growth in CEATTLE from bioenergetic algorithms used to predict consumption for an individual predator (e.g., Morita et al, 2010;Siddon et al, 2013). This should not alter results in the estimation phase, but could add a level of realism as well as "bottom-up" dynamics to the model under various future climate scenarios.…”

Section: ͵ʹmentioning

confidence: 99%

A comparison of fisheries biological reference points estimated from temperature-specific multi-species and single-species climate-enhanced stock assessment models

Holsman

Ianelli

Aydin

et al. 2016

Deep Sea Research Part II: Topical Studies in Oceanography

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A comparison of fisheries biological reference points estimated from temperature-specific multi-species and single-species climate-enhanced stock assessment models, Deep-Sea Research II, http://dx. ABSTRACTMulti-species statistical catch at age models (MSCAA) can quantify interacting effects of climate and fisheries harvest on species populations, and evaluate management trade-offs for fisheries that target several species in a food web. We modified an existing MSCAA model to include temperature-specific growth and predation rates and applied the modified model to three fish species, walleye pollock (Gadus chalcogrammus), Pacific cod (Gadus macrocephalus) and arrowtooth flounder (Atheresthes stomias), from the eastern Bering Sea (USA). We fit the model to data from 1979 through 2012, with and without trophic interactions and temperature effects, and use projections to derive singleand multi-species biological reference points (BRP and MBRP, respectively) for fisheries management. The multi-species model achieved a higher over-all goodness of fit to the data (i.e. lower negative log-likelihood) for pollock and Pacific cod. Variability from water temperature typically resulted in 5-15% changes in spawning, survey, and total biomasses, but did not strongly impact recruitment estimates or mortality. Despite this, inclusion of temperature in projections did have a strong effect on BRPs, including recommended yield, which were higher in single-species models for Pacific cod and arrowtooth flounder that included temperature compared to the same models without temperature effects. While the temperature-driven multi-species model resulted in higher yield MBPRs for arrowtooth flounder than the same model without temperature, we did not observe the same patterns in multi-species models for pollock and Pacific cod, where variability between harvest scenarios and predation greatly exceeded temperature-driven variability in yield MBRPs. Annual predation on juvenile pollock (primarily cannibalism) in the multi-species model was 2-5 times the annual harvest of adult fish in the system, ͵ thus predators represent a strong control on population dynamics that exceeds temperature-driven changes to growth and is attenuated through harvest-driven reductions in predator populations. Additionally, although we observed differences in spawning biomasses at the accepted biological catch (ABC) proxy between harvest scenarios and single-and multi-species models, discrepancies in spawning stock biomass estimates did not translate to large differences in yield. We found that multi-species models produced higher estimates of combined yield for aggregate maximum sustainable yield (MSY) targets than single species models, but were more conservative than singlespecies models when individual MSY targets were used, with the exception of scenarios where minimum biomass thresholds were imposed. Collectively our results suggest that climate and trophic drivers can interact to affect MBRPs, but for prey species with high predation rates, trophic-and man...

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Size-dependent thermal preferences in a pelagic fish

Cited by 92 publications

References 43 publications

Interannual variation in diets of walleye pollock in the Doto area, in relation to climate variation

Interannual variation in diets of walleye pollock in the Doto area, in relation to climate variation

Unravelling the effects of water temperature and density dependence on the spatial variation of brown trout (Salmo trutta) body size

A comparison of fisheries biological reference points estimated from temperature-specific multi-species and single-species climate-enhanced stock assessment models

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