Estuarine dependency in Collichthys lucidus of the Yangtze River Estuary as revealed by the environmental signature of otolith strontium and calcium

Collichthys lucidus ( C . lucidus ) is a commercially important marine fish species distributed in coastal regions of East Asia with the X 1 X 1 X 2 X 2 /X 1 X 2 Y multiple sex chromosome system. The karyotype for female C . lucidus is 2n = 48, while 2n = 47 for male ones. Therefore, C . lucidus is also an excellent model to investigate teleost sex-determination and sex chromosome evolution. We reported the first chromosome genome assembly of C . lucidus using Illumina short-read, PacBio long-read sequencing and Hi-C technology. An 877 Mb genome was obtained with a contig and scaffold N50 of 1.1 Mb and 35.9 Mb, respectively. More than 97% BUSCOs genes were identified in the C . lucidus genome and 28,602 genes were annotated. We identified potential sex-determination genes along chromosomes and found that the chromosome 1 might be involved in the formation of Y specific metacentric chromosome. The first C . lucidus chromosome-level reference genome lays a solid foundation for the following population genetics study, functional gene mapping of important economic traits, sex-determination and sex chromosome evolution studies for Sciaenidae and teleosts.

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“…At present, the research on C . lucidus mostly focused on phylogeny and population genetics 3–7 . C .…”

Section: Background and Summarymentioning

confidence: 99%

Chromosome assembly of Collichthys lucidus, a fish of Sciaenidae with a multiple sex chromosome system

et al. 2019

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“…Fish movements have been studied using a variety of tools, such as mark and recapture, telemetry and otolith chemistry (Campana et al, 1999;Trotter et al, 2012;Liu et al, 2014). Otoliths are metabolically inert structures as new mineral material is neither resorbed nor reworked after deposition, and the uptake of elements into the growing structures usually reflects the physical and chemical aquatic environment (Campana et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Habitat residency and movement patterns of Centropomus parallelus juveniles in a subtropical estuarine complex

Daros

Spach

Correia

2016

Journal of Fish Biology

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Sixty Centropomus parallelus juveniles were collected in March 2013 in two locations (Tromomó and Guaraguaçu) inside the Paranaguá estuarine complex, southern Brazil. The habitat residency and movement patterns of the individuals were inferred from Sr:Ca ratios and age recorded in the otoliths. Data suggest that the species spawns preferentially in brackish areas mainly from October to January, and that growth rate during the early juvenile stage could be influenced by environmental salinity. Furthermore, the data also show that C. parallelus can occupy diverse salinity habitats and migrate among marine, brackish and freshwater areas within the Paranaguá estuarine complex, showing a high environmental plasticity and adaptation.

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“…The Mann-Whitney U-test is a non-parametric statistical technique, which is used to analyze differences between the medians of two data sets. This study presents the Mann-Whitney U-test as a statistical technique to examine differences between two independent groups on a continuous scale, namely, the differences in otolith Sr:Ca ratios between high and low phases of each otolith sample as described in previous studies (Yang et al 2006;Liu et al 2015;Jiang et al 2019;Sokta et al 2020). The Mann-Whitney U-test was defined as follows:…”

Section: Shanghai East China Seamentioning

confidence: 99%

“…The otolith strontium:calcium (Sr:Ca) ratio of concentrations have been applied as a useful scalar to estimate habitat use, migration history, and distinguish population structures of fish (Secor and Rooker 2000;Zimmerman 2005;Yang et al 2011;Khumbanyiwa et al 2018), successfully used in marine fish, including the Sciaenidae species Argyrosomus japonicus (Temminck et Schlegel, 1843) (see Ferguson et al 2011) and Collichthys lucidus (Richardson, 1844) (see Liu et al 2015). Recently, the habitat reconstruction and early life history of L. polyactis from the southern Yellow Sea was determined, based on the otolith microchemical analysis of the Sr:Ca ratio (Xiong et al 2014(Xiong et al , 2017.…”

Section: Introductionmentioning

confidence: 99%

Temporal stability in the otolith Sr:Ca ratio of the yellow croaker, Larimichthys polyactis (Actinopterygii, Perciformes, Sciaenidae), from the southern Yellow Sea

Xiong

Yang²,

Jiang³

et al. 2021

AIeP

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Otolith chemical signatures are sufficiently stable across time to allow for accurate stock classification. The classification of the southern Yellow Sea population for Larimichthys polyactis (Bleeker, 1877) and its connectivity with others from 1962 is controversial. The study aimed to study the inter-annual variation in otolith strontium:calcium (Sr:Ca) ratios of L. polyactis to determine whether otolith natural tags are representative over long periods and can then be used for population structure classification. Spawning L. polyactis individuals were captured by stow nets in the same site of the southern Yellow Sea coastal waters during April–May in 2003, 2012, and 2013. EPMA (electron probe microanalysis) was used to determine the Sr:Ca ratios of a total of 25 otolith samples. Mann–Whitney U-test was used to test the differences of otolith Sr:Ca ratios from the core to edge for each otolith. One-way ANOVA was performed to compare the mean otolith Sr:Ca values among 2003, 2012, and 2013. Otoliths from 2003, 2012, and 2013 showed similar patterns of Sr:Ca ratios and Sr:Ca ratios could be divided into higher and lower phases in the core and remaining regions, respectively. Inter-annual significant differences for each high or low Sr:Ca phase of otoliths were not observed over short- (between 2012 and 2013) or long-time (between 2003 and 2012, and between 2003 and 2013) scales. Univariate contrasts across the adjacent year and decade classes were statistically similar. The Sr:Ca ratio signatures in the otolith were relatively stable across years and can be used as a reliable natural tag for connectivity assessments and stock identification with little or no genetic differentiation among L. polyactis populations. The short- and long-term temporal stability of otolith Sr:Ca ratios also revealed, the existence of stable L. polyactis stocks in the southern Yellow Sea, consistent with a previous finding of capture survey.

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Estuarine dependency in Collichthys lucidus of the Yangtze River Estuary as revealed by the environmental signature of otolith strontium and calcium

Cited by 14 publications

References 20 publications

Chromosome assembly of Collichthys lucidus, a fish of Sciaenidae with a multiple sex chromosome system

Chromosome assembly of Collichthys lucidus, a fish of Sciaenidae with a multiple sex chromosome system

Habitat residency and movement patterns of Centropomus parallelus juveniles in a subtropical estuarine complex

Temporal stability in the otolith Sr:Ca ratio of the yellow croaker, Larimichthys polyactis (Actinopterygii, Perciformes, Sciaenidae), from the southern Yellow Sea

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