ILLUSTRATIONS AND TABLES
Figure 1. (A) Life-history migration patterns of Larimichthys crocea in
the ECS; (B) The fishing area (gray area) during winter 1971–1982 and
the survey stations (crosses) in the winter of 2018 for L. crocea in the
mid-southern East China Sea.
Figure 2. (A) Annual catch
(1956–2019, 1000 tons) of L.
crocea in Jiangsu, Shanghai, Zhejiang, and Fujian provinces, China; (B)
Total catch (1956–2019, 1000 tons) and the number of hatchery release
of L. crocea at coastal Zhejiang and Fujian provinces (main catch and
stock enhancement provinces in China).
Figure 3. The Graphical fit of
current life-history parameters and grow curves of L. crocea through
length-frequency data with Electronic Length Frequency Analysis (ELEFAN)
of
bin=10mm, moving average (MA)=11
scenario. (A) Histogram of length-frequency distribution (bin=10mm); (B)
Histogram of maturation of L.crocea; (C) Growth curve of L.crocea with
ELEFAN S.A. (bin=10mm, MA=11) scenario; (D) Graphical fit of catch
probability of bin=10mm, MA=11 scenario, t50 represent
the relative age of first capture.
Figure 4. Annual winter season sea surface temperature (SST) anomalies
(grey triangles) from 1970 to 2019. Showing long-term SST decline from
1970 to 2019 (blue solid line) and from 1982 to 2019 (red dashed line).
Figure 5. Decadal variations of
(A) spatial distribution of predicted habitat suitability and (B) area
percentage of optimal, common, and poor habitat since the 1970s. The
areas with habitat suitability index (HSI) value > 0.7, 0.7
> HSI value > 0.3, and HSI value <
0.3 were regarded as optimal, common, and poor habitat, respectively.
Figure 6. Spatial distribution of (A) mean winter total catch of L.
crocea, overlaid with the predicted HSI map in 1971–1982 and (B)
biomass of L. crocea overlaid with the predicted HSI map in 2018.
Table 1. Current life-history parameters
fitted with ELEFAN S.A. of
bin=10mm, MA=11 scenario and historical life-history parameters ofL. crocea .