Migration routes of the swordtip squid Uroteuthis edulis in the East China Sea determined based on the statolith trace element information

Li, Nan; Han, Peiwu; Wang, Chao; Chen, Xinjun; Fang, Zhou

doi:10.1007/s10750-022-05129-8

Cited by 9 publications

(52 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Statoliths were extracted from statocysts, then numbered, and placed in 1.5 mL centrifuge tubes containing 75% ethyl alcohol (Li et al, 2021). Forty statoliths (all the statoliths of the samples were selected if the number of statoliths was less than 40) were selected every month and ground according to mantle length, body weight, and sex ratio of the samples in the sampling year (Table 1).…”

Section: Methodsmentioning

confidence: 99%

“…Forty statoliths (all the statoliths of the samples were selected if the number of statoliths was less than 40) were selected every month and ground according to mantle length, body weight, and sex ratio of the samples in the sampling year (Table 1). Statolith preparation, embedding, grinding, polishing, and age counting were carried out according to the method of Li et al (2021). The growth pattern of U. edulis statolith conforms to the rule of “one day–one increment” (Natsukari et al, 1988).…”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…According to the fishery resource survey and the statolith microchemical information, the potential habitat locations of U. edulis were different at different life history stages of the spring stock in the East China Sea (Figures S1 and S2) (Li et al, 2023; Wang, 2009; Wang et al, 2013). Based on the distribution prediction of the probability model (selected probability was above 0.75), the habitats of spring stock were divided into four regions (Figures 3, S1, and S2), and it was assumed that all the monthly groups (March to May) of the spring stock experienced the same habitats at sampling years (Li et al, 2023). Among them, the habitat region of the embryo–larval stage was 120.5–124.5°E, 25.5–28°N (combined due to high overlap); the habitat region of the juvenile stage was 122.5–127°E, 26.5–29.5°N; the habitat region of the subadult stage was 123–128°E, 27.5–30.5°N; and the habitat region of the adult stage was 124–127.5°E; 29.5–32.5°N.…”

Section: Methodsmentioning

confidence: 99%

“…This species can breed and hatch throughout the year, showing the trend of generation shortening (Li et al, 2020). It mainly feeds on small crustaceans, juvenile mackerel, and juveniles of congeners, whereas marine mammals also prey on U. edulis (Li et al, 2020; Li, Yu, et al, 2021). Seasonal stocks are determined according to the hatching period, among which the spring stock comprised the majority of catch during in autumn and winter in the north‐central waters of the East China Sea (Li, Yu, et al, 2021; Wang et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Ontogenetic growth responses to the environmental changes of the swordtip squid (Uroteuthis edulis) spring stock in the East China Sea

Li,

Han,

Chen

et al. 2024

Fisheries Oceanography

Self Cite

View full text Add to dashboard Cite

Swordtip squid (Uroteuthis edulis) is characterized by a complex population structure and rapid generation renewal and sensitive to habitat changes. Its population growth response to environmental variations implies its flexible life history traits. In this study, with the samples collected in the north‐central waters of the East China Sea from 2017 to 2021, the daily growth of the spring stock was analyzed based on the age and increment width of statolith. The gradient forest method (GFM) and generalized additive mixed models (GAMMs) were used to explore the changes in the weights of environmental variables and the relationships between daily growth and environmental variables in various growth stages. The age of the samples collected from 2017 to 2021 mainly ranged from 180 to 240 days, and the spring stock was the dominant stock. According to the distance from daily increment to core in the statolith, the life history of the spring stock was divided into four growth stages (S1 embryo–larval stage, S2 juvenile stage, S3 subadult stage, and S4 adult stage). For the spring stock, the cumulative weight of temperature and salinity in the population growth was the largest in S1 stage; the cumulative weight of temperature and velocity was the largest in S2 stage; the cumulative weight of temperature was the largest in S3 stage; and the cumulative weight of mixed layer depth (MLD), temperature, and salinity was the largest in S4 stage. The relationship between temperature at the depth of 25 m (T25) and daily growth of the spring stock was first positively correlated (S1–S2), then negatively correlated (S3), and finally positively correlated (S4). The relationship between environment variable and growth of the spring stock gradually decreased with the increase in MLD (30 to 50 m) and SSS (S3–S4, 32.2‰ to 33.2‰) and gradually increased with the increase in the velocity of currents (S1, .1 to .2 m/s). The differences in the responses of the spring stock to environmental variations in different growth stages may lead to the changes in the growth traits for the spring stock. This study provides a scientific basis for a comprehensive understanding of the life history traits of U. edulis.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%