Spatial Variation in Food-Limited Growth of Juvenile Greenback Flounder, Rhombosolea tapirina: Evidence from Otolith Daily Increments and Otolith Scaling

Growth rates of juvenile flounder, Rhombosolea tapirina, determined from daily increment number, and the relationship between otolith and fish sizes (otolith scaling), were compared between two adjacent areas. Swan Bay, Victoria, a sheltered bay with a well-developed seagrass-detrital system, supports higher populations of prey and feeding rates of juvenile flounder than Port Phillip Bay, an area more exposed to waves and tidal currents. Temperature was significantly higher in Swan Bay (though generally less than 1 °C). Growth rates determined from daily increment number were similar within bays, but significantly different between bays. The pooled growth rate for Swan Bay (0.29 mm∙d−1) was significantly higher than for Port Phillip Bay (0.17 mm∙d−1). The same pattern was found for otolith scaling. Most of the variation in growth rates between the two bays was apparently related to food supply. A laboratory experiment indicated that otolith growth rate had a minimum level which was independent of somatic growth rate, and an additional component which was highly correlated with somatic growth rate. This resulted in an exponential decrease in otolith growth per unit somatic growth with increasing somatic growth rate such that variation in otolith scaling would be greatest at low growth rates.

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Interpretation of Otolith Microstructure in Juvenile Winter Flounder (Pseudopleuronectes americanus): Ontogenetic Development, Daily Increment Validation, and Somatic Growth Relationships

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/f91-220 ◽

1991 ◽

Vol 48 (10) ◽

pp. 1862-1871 ◽

Cited By ~ 68

Author(s):

Susan M. Sogard

Keyword(s):

Growth Rates ◽

Somatic Growth ◽

Winter Flounder ◽

Pseudopleuronectes Americanus ◽

Otolith Growth ◽

Morphological Asymmetry ◽

Daily Increments ◽

Absolute Growth ◽

Left And Right ◽

Calcium Carbonate Deposition

In winter flounder (Pseudopleuronectes americanus), sagittae developed secondary origins of calcium carbonate deposition during metamorphosis just prior to completion of eye migration. Sagittae and lapilli of larvae were bilaterally symmetrical, but those of postmetamorphic individuals showed increasing morphological asymmetry between the left and right side. In juveniles marked with oxytetracycline and maintained in field enclosures for 10 d, increment deposition on sagittae was daily if somatic growth following marking was good (> 0.25 mm∙d−1), but less than daily in individuals with poor or negative somatic growth (< 0.25 mm∙d−1). Narrowly spaced increments or divergence of otolith growth from the main rostral–postrostral growth axis, where counts were made, may have limited detection of daily deposition. Lack of detectable daily increments occurred primarily in larger juveniles (> 50 mm total length), which had lower absolute growth rates than newly settled juveniles. In oxytetracycline-marked fish there was a significant correspondence between otolith growth and somatic growth in both length and weight. The strength of this relationship, which varied with the specific radius used, was highest (r = 0.854) for the rostral radius of the left sagitta; increment widths along this radius are reliable estimators of prior somatic growth rates.

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Somatic Growth Effects on the Otolith–Fish Size Relationship in Young Pond-reared Striped Bass, Morone saxatilis

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/f89-015 ◽

1989 ◽

Vol 46 (1) ◽

pp. 113-121 ◽

Cited By ~ 163

Author(s):

David H. Secor ◽

John Mark Dean

Keyword(s):

Growth Rate ◽

Striped Bass ◽

Somatic Growth ◽

Morone Saxatilis ◽

Fish Length ◽

Fish Size ◽

Somatic Growth Rate ◽

Size Relationship ◽

Highly Correlated ◽

Otolith Size

Somatic growth rate of pond-reared larval and juvenile striped bass, Morone saxatilis, influenced the relationship between otolith size and fish size. Slower growing groups of individuals had larger and heavier otoliths, relative to fish length, than did faster growing groups. Within each growth group, otolith and fish size were highly correlated. Daily increment formation was validated from 10 to 51 d after hatch. Significant interaction occurred between age and fish size effects on otolith size. We propose that otolith growth occurs by two interacting processes. Otoliths grow daily in an incremental manner which is independent of somatic growth. Growth also proceeds continuously within each daily cycle of increment deposition, probably in some proportion to daily somatic growth. Corollaries to the hypotheses are (1) somatic growth rate can influence the otolith–fish size relationship, (2) intraspecific variation in otolith scaling might be used to predict past differences in somatic growth rate, and (3) there is a biological rationale for the use of otolith size and fish size as predictors in age estimation.

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Do Otoliths record changes in somatic growth rate? Conflicting evidence form a laboratory and field study of a temperate Reef Fish, Parika scaber

Marine and Freshwater Research ◽

10.1071/mf9921203 ◽

1992 ◽

Vol 43 (5) ◽

pp. 1203 ◽

Cited By ~ 7

Author(s):

MJ Milicich ◽

JH Choat

Keyword(s):

Growth Rate ◽

Body Size ◽

Field Study ◽

Reef Fish ◽

Somatic Growth ◽

Individual Growth ◽

Otolith Growth ◽

Somatic Growth Rate ◽

Temperate Reef ◽

Temperate Reef Fish

Otolith increment widths in a temperate reef fish, Parika scaber (Pisces:Monacanthidae), have been shown to vary in different months and to correlate with changes in somatic growth rate. This results in the persistence of a constant otolith-size/fish-size relationship. In the present study, the response of otolith growth to laboratory-induced changes in body growth was determined over a 10-day period in December 1985. Juveniles were subjected to two ranges of temperature (19-21�C and 24-26�C) and three feeding levels (fully fed, partially fed, and starved) of a diet consisting of larvae of Opifex fuscus, an endemic mosquito. Fish were individually tagged to ensure that changes in growth rate and any associated changes in otolith microstructure could be accurately determined for any individual. Fully fed fish grew more slowly during treatment than they did prior to treatment, and starved fish did not grow at all. Partially fed fish exhibited a size-hierarchy effect, with larger fish increasing in body size at the expense of smaller individuals. No temperature effect on growth rate was recorded. In contrast to the results from an associated field study, otoliths of fully fed fish continued to increase at the same daily width despite the induced alteration in growth rate. Thus, otoliths were disproportionately large compared with estimates from the field. However, otoliths of starved fish were not as large as predicted from a continual production of daily rings at a constant width. Daily ring deposition may have ceased at different times during the experiment for the starved fish, depending on body size. Alternatively, deposition may have continued, but at a spacing that was not detectable by light microscopy. We conclude that adequate validation of response of otolith growth to changes in somatic growth is necessary before individual growth histories can be back-calculated. This is true even where strong evidence from the field suggests that back-calculation is possible.

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Uncoupling of Somatic and Otolith Growth Rates in Arctic Char (Salvelinus alpinus) as an Effect of Differences in Temperature Response

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/f88-180 ◽

1988 ◽

Vol 45 (9) ◽

pp. 1514-1524 ◽

Cited By ~ 207

Author(s):

Henrik Mosegaard ◽

Henrik Svedäng ◽

Kjell Taberman

Keyword(s):

Growth Rate ◽

Growth Rates ◽

Salvelinus Alpinus ◽

Somatic Growth ◽

Arctic Char ◽

Fish Growth ◽

Effect Of Temperature ◽

Otolith Growth ◽

Different Temperatures ◽

Wet Weight

Experiments were conducted to study the effect of temperature, fish size, and somatic growth rate on mean daily otolith growth rate in Arctic char (Salvelinus alpinus) fry fed maximum rations. Long-term experiments at two different temperatures (8 and 13 °C) showed exponential relationships between otolith weight and fish wet weight, with the exponent of wet weight for the higher temperature being significantly higher than for the lower temperature. Increasing exponents at each sampling date indicated a difference in growth rates of the char and its otoliths. Short-term experiments showed that specific growth rate of the fry at six different temperatures was that of an optimum curve whereas the otolith growth rate continued to increase with increasing temperatures. A clear uncoupling between otolith growth rate and fish growth rate was demonstrated whereas temperature and fish wet weight modeled otolith growth rate reasonably well. It was found that otolith growth rate expressed as daily increase in weight gave a model with better fit and higher generality than growth rate along various radii. Several examples of uncoupling between fish growth rate and otolith growth rate in the literature were reexamined, and an explanation of otolith growth rate in terms of a metabolic expression was suggested.

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Individual variability in the settlement of juvenile green turtles in the western South Atlantic Ocean: relevance of currents and somatic growth rate

Marine Ecology Progress Series ◽

10.3354/meps12909 ◽

2019 ◽

Vol 614 ◽

pp. 173-182 ◽

Cited By ~ 2

Author(s):

P Campos ◽

L Cardona

Keyword(s):

Growth Rate ◽

Atlantic Ocean ◽

Somatic Growth ◽

Individual Variability ◽

South Atlantic ◽

South Atlantic Ocean ◽

Somatic Growth Rate ◽

Green Turtles

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Using a GLMM to estimate the somatic growth rate trend for male South African west coast rock lobster, Jasus lalandii

Fisheries Research ◽

10.1016/j.fishres.2004.08.012 ◽

2004 ◽

Vol 70 (2-3) ◽

pp. 339-349 ◽

Cited By ~ 10

Author(s):

A. Brandão ◽

D.S. Butterworth ◽

S.J. Johnston ◽

J.P. Glazer

Keyword(s):

Growth Rate ◽

South African ◽

West Coast ◽

Somatic Growth ◽

Rock Lobster ◽

Somatic Growth Rate

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Generation of an Isogenic Collection of Yeast Actin Mutants and Identification of Three Interrelated Phenotypes

Genetics ◽

10.1093/genetics/157.2.533 ◽

2001 ◽

Vol 157 (2) ◽

pp. 533-543

Author(s):

Johanna L Whitacre ◽

Dana A Davis ◽

Kurt A Toenjes ◽

Sharon M Brower ◽

Alison E M Adams

Keyword(s):

Crystal Structure ◽

Growth Rates ◽

Small Region ◽

Wild Type ◽

Large Collection ◽

Growth Defects ◽

Cytoskeletal Function ◽

Highly Correlated ◽

The Relationship ◽

Mutant Cells

Abstract A large collection of yeast actin mutations has been previously isolated and used in numerous studies of actin cytoskeletal function. However, the various mutations have been in congenic, rather than isogenic, backgrounds, making it difficult to compare the subtle phenotypes that are characteristic of these mutants. We have therefore placed 27 mutations in an isogenic background. We used a subset of these mutants to compare the degree to which different actin alleles are defective in sporulation, endocytosis, and growth on NaCl-containing media. We found that the three phenotypes are highly correlated. The correlations are specific and not merely a reflection of general growth defects, because the phenotypes are not correlated with growth rates under normal conditions. Significantly, those actin mutants exhibiting the most severe phenotypes in all three processes have altered residues that cluster to a small region of the actin crystal structure previously defined as the fimbrin (Sac6p)-binding site. We examined the relationship between endocytosis and growth on salt and found that shifting wild-type or actin mutant cells to high salt reduces the rate of α-factor internalization. These results suggest that actin mutants may be unable to grow on salt because of additive endocytic defects (due to mutation and salt).

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The Effect of Food Concentration on the Juvenile Somatic Growth Rate of Body Length, Fecundity and the Production of Resting Eggs by Moina brachiata (Crustacea: Cladocera) Single Females

Journal of Siberian Federal University Biology ◽

10.17516/1997-1389-0132 ◽

2012 ◽

Vol 5 (4) ◽

pp. 437-438

Author(s):

Lopatina Tatiana S. ◽

◽

Zadereev Egor S. ◽

◽

Keyword(s):

Growth Rate ◽

Body Length ◽

Somatic Growth ◽

Food Concentration ◽

Resting Eggs ◽

Somatic Growth Rate ◽

Effect Of Food

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Relationship between habitat distribution, growth rate, and plasticity in congeneric larval dragonflies

Canadian Journal of Zoology ◽

10.1139/z05-103 ◽

2005 ◽

Vol 83 (8) ◽

pp. 1128-1133 ◽

Cited By ~ 3

Author(s):

S J McCauley

Keyword(s):

Growth Rate ◽

Predation Risk ◽

Growth Rates ◽

Lepomis Macrochirus ◽

Negative Relationship ◽

Activity Level ◽

Activity Levels ◽

Habitat Distribution ◽

Invertebrate Predators ◽

The Relationship

The relationship between habitat distribution, growth rate, and plasticity was examined in the larvae of three species of dragonfly in the genus Libellula L., 1758. Growth rates were compared under three conditions: in the absence of predation risk, in the presence of sunfish (Lepomis macrochirus Rafinesque, 1819; Pisciformes: Centrachidae), and in the presence of invertebrate predators. I assessed how the habitat distributions of the three species of dragonfly, specifically how commonly they occur with fish, were related to growth rates and to the level of growth plasticity under different levels of perceived predation risk. There was a negative relationship between growth rate and the frequency with which species coexist with sunfish. Growth-rate plasticity was limited and does not appear to be important in determining the ability of species to coexist with alternative top predator types. Only one species exhibited growth-rate plasticity, decreasing growth in response to the predator with which it most commonly coexists but not to the species which poses the greatest predation risk. A comparison of growth rates and activity levels in the presence and absence of these predators suggests that growth and activity level parallel each other in these species.

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