Top-down pressure on small pelagic fish by eastern Australian salmon Arripis trutta; estimation of daily ration and annual prey consumption using multiple techniques

Hughes, Julian M.; Stewart, John; Lyle, JM; Suthers, Iain M.

doi:10.1016/j.jembe.2014.05.026

Cited by 16 publications

(24 citation statements)

References 54 publications

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“…Boobies, cormorants, and pelicans were estimated to consume 14% of anchoveta production before the fishery and 2% during the fishery in the Humboldt Current System ( Jahncke et al 2004). Australian salmon were estimated to maximally consume 15% of Australian sardine (Hughes et al 2014). Jellyfish have been proposed to both prey on the young stages and compete for the food of anchovy and sardine (Lynam et al 2006, Roux et al 2013.…”

Section: Predictionmentioning

confidence: 99%

Climate, Anchovy, and Sardine

Checkley

Asch

Rykaczewski

2017

Annu. Rev. Mar. Sci.

180

129

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Anchovy and sardine populated productive ocean regions over hundreds of thousands of years under a naturally varying climate, and are now subject to climate change of equal or greater magnitude occurring over decades to centuries. We hypothesize that anchovy and sardine populations are limited in size by the supply of nitrogen from outside their habitats originating from upwelling, mixing, and rivers. Projections of the responses of anchovy and sardine to climate change rely on a range of model types and consideration of the effects of climate on lower trophic levels, the effects of fishing on higher trophic levels, and the traits of these two types of fish. Distribution, phenology, nutrient supply, plankton composition and production, habitat compression, fishing, and acclimation and adaptation may be affected by ocean warming, acidification, deoxygenation, and altered hydrology. Observations of populations and evaluation of model skill are essential to resolve the effects of climate change on these fish.

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Section: Predictionmentioning

confidence: 99%

Climate, Anchovy, and Sardine

Checkley

Asch

Rykaczewski

2017

Annu. Rev. Mar. Sci.

180

129

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“…Hughes et al 2014), . D max is the maximum distance that Atypichthys strigatus generally forage from the reef, and it determines the total volume of water available to be foraged where W ∞ is the asymptotic weight of an individual (g), T' is the mean water temperature (equal to 1000/T°C + 273.1), AR is the aspect ratio of the caudal fin, and h and d are dummy variables relating to feeding preference; i.e.…”

Section: Consumption By a Strigatusmentioning

confidence: 99%

Zooplanktivory is a key process for fish production on a coastal artificial reef

Champion¹,

Suthers²,

Smith³

2015

Mar. Ecol. Prog. Ser.

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“…Interspecies comparisons revealed similar consumption rates between kingfish (range of method means: 134–181 J·g −1 ·day −1 ) and a comparable piscivorous predator, Arripis trutta (102 J·g −1 ·day −1 ; Hughes et al. ), but were markedly lower than that of a tuna species that occupies a similar trophic level, K. pelamis (465 J·g −1 ·day −1 ; Essington ). Future interspecies comparisons could benefit from monitoring differences in fish activity and behavior in the wild.…”

Section: Discussionmentioning

confidence: 95%

“…; Hughes et al. ; Frisk et al. ), the assumption that active metabolic rate is a fixed proportion of standard metabolic rate may lead to miscalculations of consumption rates and should be explicitly tested for individual species (Mathot and Dingemanse ) and treated conservatively (Meskendahl et al.…”

Section: Discussionmentioning

confidence: 99%

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Improving consumption rate estimates by incorporating wild activity into a bioenergetics model

Brodie

Taylor

Smith

et al. 2016

Ecology and Evolution

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Consumption is the basis of metabolic and trophic ecology and is used to assess an animal's trophic impact. The contribution of activity to an animal's energy budget is an important parameter when estimating consumption, yet activity is usually measured in captive animals. Developments in telemetry have allowed the energetic costs of activity to be measured for wild animals; however, wild activity is seldom incorporated into estimates of consumption rates. We calculated the consumption rate of a free‐ranging marine predator (yellowtail kingfish, Seriola lalandi) by integrating the energetic cost of free‐ranging activity into a bioenergetics model. Accelerometry transmitters were used in conjunction with laboratory respirometry trials to estimate kingfish active metabolic rate in the wild. These field‐derived consumption rate estimates were compared with those estimated by two traditional bioenergetics methods. The first method derived routine swimming speed from fish morphology as an index of activity (a “morphometric” method), and the second considered activity as a fixed proportion of standard metabolic rate (a “physiological” method). The mean consumption rate for free‐ranging kingfish measured by accelerometry was 152 J·g−1·day−1, which lay between the estimates from the morphometric method (μ = 134 J·g−1·day−1) and the physiological method (μ = 181 J·g−1·day−1). Incorporating field‐derived activity values resulted in the smallest variance in log‐normally distributed consumption rates (σ = 0.31), compared with the morphometric (σ = 0.57) and physiological (σ = 0.78) methods. Incorporating field‐derived activity into bioenergetics models probably provided more realistic estimates of consumption rate compared with the traditional methods, which may further our understanding of trophic interactions that underpin ecosystem‐based fisheries management. The general methods used to estimate active metabolic rates of free‐ranging fish could be extended to examine ecological energetics and trophic interactions across aquatic and terrestrial ecosystems.

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Top-down pressure on small pelagic fish by eastern Australian salmon Arripis trutta; estimation of daily ration and annual prey consumption using multiple techniques

Cited by 16 publications

References 54 publications

Climate, Anchovy, and Sardine

Climate, Anchovy, and Sardine

Zooplanktivory is a key process for fish production on a coastal artificial reef

Improving consumption rate estimates by incorporating wild activity into a bioenergetics model

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