Estimating seasonal habitat suitability for migratory species in the Bohai Sea and Yellow Sea: A case study of Tanaka’s snailfish (Liparis tanakae)

Chen, Yunlong; Shan, Xiujuan; Zeng, Dingyong; Gorfine, Harry; Xu, Yinfeng; Wu, Qiang; Yang, Tao; Jin, Xianshi

doi:10.1007/s13131-021-1912-1

Cited by 5 publications

(7 citation statements)

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“…Temperature is the most important external environmental factor for fishes, directly affecting the activity of digestive enzymes in their gut, food availability, and habitat selectivity (Volkoff and Rønnestad, 2020;Freitas et al, 2021). Tanaka's snailfish is a demersal cold-temperature species, with limited long-distance mobility and as such is endemic to the Yellow Sea ecosystem (Chen et al, 2022). Our study showed that SST has two significant implications for the snailfish population.…”

Section: Relative Importance Of Sst Prey and Fishing Factorsmentioning

confidence: 73%

“…According to previous studies, SST and DP are considered to be important factors influencing the snailfish population in the Yellow Sea (Zhang et al, 2011;Chen et al, 2022). Although snailfish belongs to the category of large demersal species in the Yellow Sea ecosystem, how FP acts on this species and the magnitude of its effects remains unclear.…”

Section: Relative Importance Of Different Covariatesmentioning

confidence: 99%

“…Previously, temperature was identified as the dominant variable in explaining the overwintering distribution of snailfish, although other possibly important biotic variables include spawning and feeding activities (Chen et al, 2022). January was identified as one of the two intra-annual feeding peaks for snailfish along with August when high feeding intensity was also observed (Zhang et al, 2011).…”

Section: Relative Importance Of Sst Prey and Fishing Factorsmentioning

confidence: 99%

“…This may be a reflection of two circumstances. Firstly, snailfish is a species with low economic value (Chen et al, 2022), subjected to limited fishing pressure compared to economically valuable species in the Yellow Sea, such as the small yellow croaker, the largehead hairtail and the Japanese Spanish mackerel. Secondly, we used the winter survey data of snailfish to study its long-term changes in population.…”

Section: Relative Importance Of Sst Prey and Fishing Factorsmentioning

confidence: 99%

“…Oceanodromanous, this snailfish inhabits muddy bottom regions at depths of 50−90 m. In the Yellow Sea, snailfish mainly congregate in waters near Haizhou Bay during summer; migrate to shallower waters inshore for feeding during autumn; then move to deeper offshore regions in the central and southern Yellow Sea for overwintering (Zhou et al, 2012). Scholars have conducted ecological research focusing on seasonal changes in biological characteristics and resource distribution (Tomiyama et al, 2013;Myoung et al, 2016;Chen et al, 2022), trophic level (Zhang et al, 2007), feeding ecology (Zhang et al, 2011), helminth parasites (Guo et al, 2014) and complete mitochondrial genome (Liu et al, 2022). As one of the top predators in the Yellow Sea ecosystem, the snailfish feeds on more than 60 species and plays an important ecological role in regulating the biomass of other species through a top-down effect (Zhang et al, 2011;Lin et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Long-term changes in the spatio-temporal distribution of snailfish Liparis tanakae in the Yellow Sea under fishing and environmental changes

Chen

Shan²,

Han³

et al. 2022

Front. Mar. Sci.

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Tanaka’s snailfish (Liparis tanakae) is a low-economic but ecologically important fish in the Yellow Sea, which is one of the most threatened marine ecosystems in the world due to environmental changes and human activities. Although it serves as both a dominant species and an apex predator, our knowledge about the long-term changes in the spatio-temporal distribution of this snailfish remains limited in the threatened ecosystem. In this study, by developing eight alternative vector autoregressive spatio-temporal (VAST) models including various combinations of sea surface temperature (SST), fishing pressure (FP) and the density of the prey (DP), we investigated the spatio-temporal distribution patterns of snailfish based on fishery-independent surveys conducted between 2003 and 2019 and examined the relative importance of different covariates. We found that SST was the most important factor in explaining variation in encounter probability and DP was the most important factor in explaining temporal variation in biomass density of snailfish. Surprisingly, incorporation of FP in the spatio-temporal models neither improved explanation of the variance in encounter probability nor biomass density. Based on Akaike’s information criterion, we selected a spatio-temporal model with SST in preference to seven alternative models. The inter-annual distribution range of snailfish was relatively stable whereas the spatial patterns varied over time. In 2003–2006 and 2011, the hotspots of snailfish were widely distributed throughout almost the entire Yellow Sea area. In contrast, in other survey years, especially in 2007–2009, 2015–2016 and 2019, the distribution was more concentrated within the central Yellow Sea. No significant shift in centers of gravity (COGs) was detected for the population. The estimated effective area occupied correlated significantly with biomass density of snailfish (r = -0.71, P< 0.05). Outputs from this study enhanced our understanding of how and the extent to which multiple pressures influence the observed long-term changes in spatio-temporal distribution of snailfish in the Yellow Sea.

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Section: Relative Importance Of Sst Prey and Fishing Factorsmentioning

confidence: 73%

Section: Relative Importance Of Different Covariatesmentioning

confidence: 99%

Section: Relative Importance Of Sst Prey and Fishing Factorsmentioning

confidence: 99%

Section: Relative Importance Of Sst Prey and Fishing Factorsmentioning

confidence: 99%