Comparative growth and mortality of cultured Lion's Paw scallops (<i>Nodipecten subnodosus</i>) from Gulf of California and Pacific populations and their reciprocal transplants

Koch, Volker; Rengstorf, Anna M.; Taylor, Marc H; Mazón‐Suástegui, José Manuel; Sinsel, Francisco; Wolff, Matthias

doi:10.1111/are.12175

Cited by 13 publications

(10 citation statements)

References 41 publications

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“…The peninsula forms a geographical barrier for the gene flow between the two scallop stocks, and as a result, a clear genetic separation exists (Petersen et al, 2010). Koch et al (2015) made a study focused on comparing the growth and mortality of lion's paw scallops from the Gulf of California and Pacific populations and their reciprocal transplants, cultured in suspended Nestier trays and bottom structures in Baja California Sur, Mexico. They found that Gulf scallops resisted high diurnal temperature changes at the Pacific site (San Buto) significantly better than Pacific scallops.…”

Section: Introductionmentioning

confidence: 99%

Scope for growth of cultivated Pacific and Gulf of California populations of lion's paw scallop Nodipecten subnodosus, and their reciprocal transplants

Purce

Donovan

Maeda‐Martínez

et al. 2020

Lat. Am. J. Aquat. Res.

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In the present work, the relative effects of the season (early vs. late summer), site (Gulf vs. Pacific study sites), the population of origin (Gulf vs. Pacific) and associated abiotic variables were determined in two geographically-separated Nodipecten subnodosus populations and their reciprocal transplants, through the scope for growth (SFG) and net growth efficiency (K2) using a portable open-flow system. Results indicate that both energy acquisition and expenditure were significantly affected by season, site, and population factors. Scallop energy acquisition and growth efficiency were highest during the earlier, cooler part of the summer and higher at the Pacific site where food availability was highest. Significantly higher respiration rates were measured for the Pacific scallop population, leading to significantly lower net growth efficiency than scallops of Gulf origin, which indicates a physiological advantage for Gulf scallops during the suboptimal growth conditions present during summer months on both coasts of the Baja California peninsula. It may have important implications for aquaculture enterprises in this region, and may also confirm the genetic divergence between these two geographically separated populations. The advantages of the open-flow system for in situ ecophysiological studies in aquatic organisms are discussed.

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Section: Introductionmentioning

confidence: 99%

Scope for growth of cultivated Pacific and Gulf of California populations of lion's paw scallop Nodipecten subnodosus, and their reciprocal transplants

Purce

Donovan

Maeda‐Martínez

et al. 2020

Lat. Am. J. Aquat. Res.

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“…Von Bertalanffy identified also species, where mass growth would be better described by an exponent a = 0. Moreover, an exponent a L = 0 is widely used to describe the length growth of fish and many authors reported an excellent fit also for e.g., shellfish ( Koch et al, 2015 ). For instance, the FishBase database ( Froese & Pauly, 2017 ) presumes this model and lists growth parameters for 2,320 species.…”

Section: Introductionmentioning

confidence: 99%

On the exponent in the Von Bertalanffy growth model

Renner-Martin

Brunner

Kühleitner

et al. 2018

PeerJ

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Von Bertalanffy proposed the differential equation m′(t) = p × m(t)a − q × m(t) for the description of the mass growth of animals as a function m(t) of time t. He suggested that the solution using the metabolic scaling exponent a = 2/3 (Von Bertalanffy growth function VBGF) would be universal for vertebrates. Several authors questioned universality, as for certain species other models would provide a better fit. This paper reconsiders this question. Based on 60 data sets from literature (37 about fish and 23 about non-fish species) it optimizes the model parameters, in particular the exponent 0 ≤ a < 1, so that the model curve achieves the best fit to the data. The main observation of the paper is the large variability in the exponent, which can vary over a very large range without affecting the fit to the data significantly, when the other parameters are also optimized. The paper explains this by differences in the data quality: variability is low for data from highly controlled experiments and high for natural data. Other deficiencies were biologically meaningless optimal parameter values or optimal parameter values attained on the boundary of the parameter region (indicating the possible need for a different model). Only 11 of the 60 data sets were free of such deficiencies and for them no universal exponent could be discerned.

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“…Moreover, an exponent aL = 0 is widely used to describe the length growth of fish and many authors reported an excellent fit also for e.g. shellfish (Koch et al, 2015). For instance, the FishBase database (Frose and Pauly, 2017) presumes this model and lists growth parameters for 2320 species.…”

Section: Introductionmentioning

confidence: 99%

Peer Review #2 of "On the exponent in the Von Bertalanffy growth model (v0.1)"

2018

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Bertalanffy proposed the differential equation m´(t) = p × m (t) a-q × m (t) for the description of the mass growth of animals as a function m(t) of time t. He suggested that the solution using the metabolic scaling exponent a = 2/3 (von Bertalanffy growth function VBGF) would be universal for vertebrates. Several authors questioned universality, as for certain species other models would provide a better fit. This paper reconsiders this question. Based on 60 data sets from literature (37 about fish and 23 about non-fish species) it optimizes the model parameters, in particular the exponent 0 ≤ a < 1, so that the model curve achieves the best fit to the data. The main observation of the paper is the large variability in the exponent, which can vary over a very large range without affecting the fit to the data significantly, when the other parameters are also optimized. The paper explains this by differences in the data quality: Variability is low for data from highly controlled experiments and high for natural data. Other deficiencies were biologically meaningless optimal parameter values or optimal parameter values attained on the boundary of the parameter region (indicating the possible need for a different model). Only 11 of the 60 data sets were free of such deficiencies and for them no universal exponent could be discerned.

show abstract

Comparative growth and mortality of cultured Lion's Paw scallops (Nodipecten subnodosus) from Gulf of California and Pacific populations and their reciprocal transplants

Cited by 13 publications

References 41 publications

Scope for growth of cultivated Pacific and Gulf of California populations of lion's paw scallop Nodipecten subnodosus, and their reciprocal transplants

Scope for growth of cultivated Pacific and Gulf of California populations of lion's paw scallop Nodipecten subnodosus, and their reciprocal transplants

On the exponent in the Von Bertalanffy growth model

Peer Review #2 of "On the exponent in the Von Bertalanffy growth model (v0.1)"

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