Environmental effects on the spatiotemporal variability of purpleback flying squid in XishaZhongsha waters, South China Sea

Yu, Jingjie; Hu, Qifan; Tang, Danling; Chen, Pimao

doi:10.3354/meps13026

Cited by 24 publications

(20 citation statements)

References 24 publications

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“…oualaniensis in the South China Sea is scarce. Only two studies have reported that the La Niña event in early spring 2008 significantly affected temperature and feeding environments of S. oualaniensis, resulting in variations of squid stock size and fishing ground distribution (Yu et al, 2019a(Yu et al, , 2019b. In this study, the impacts of the El Niño event on S. oualaniensis in the South China Sea were firstly estimated.…”

Section: Discussionmentioning

confidence: 97%

“…In fact, their importance commonly was different (Fang et al, 2016). There was one conclusion that SST was the most important factor, followed by Chla and SSH, for S. oualaniensis (Yu et al, 2019b). Actually, it was very difficult to quantify their importance using the fisheries data with finite time series and limited research area (Gong et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

“…Firstly, the suitable range of SST was high in summer and low in spring and autumn. Generally, the near-surface waters were relatively warm in summer due to the low latitude and the equatorial current-driven warm waters into the South China Sea (Fang et al, 2016;Yu et al, 2019aYu et al, , 2019b. With the season shifted, suitable Chla for S. oualaniensis was low in summer and relatively higher in spring and autumn, whereas the suitable ranges of SSH increased from spring to autumn.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Climate-related changes in seasonal habitat pattern of Sthenoteuthis oualaniensis in the South China Sea

Fan

Chen

Feng

et al. 2021

Ecosyst Health Sustain

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Sthenoteuthis oualaniensis is an economically important species widely distributed in the South China Sea. In this study, a habitat suitability index model (HSI) was established to examine seasonal habitat pattern of S. oualaniensis in the South China Sea from spring to autumn and assessed the impacts of the El Niño event on habitat variations using three critical environmental factors including sea surface temperature (SST), Chlorophyll-a (Chla) and sea surface height (SSH). Environmental conditions and habitat patterns showed significant seasonal and spatial variations. Spatial pattern of favorable environmental conditions played an important role in regulating the ranges and longitudinal and latitudinal distributions of suitable habitats (areas with HSI ≥ 0.6) of S. oualaniensis across seasons. Significant positive correlation was found between SST and HSI, whereas negative relationship was revealed between HSI and Chla as well as SSH on the main fishing ground of S. oualaniensis by correlation analysis. Comparing to normal climate condition in spring 2014, the El Niño events in spring 2015 and 2016 yielded relatively lower SST and higher Chla and SSH, which were unfavorable for the formation of high-quality habitats for S. oualaniensis. Favorable ranges of environmental conditions showed decreasing trend from spring 2014 to 2016. Consequently, the suitable habitats in spring 2015 and 2016 largely contracted and became discontinuity. Our findings indicated that seasonal habitat patterns of S. oualaniensis in the South China Sea were closely associated with local environmental conditions. Importantly, the El Niño events strongly affected spatio-temporal patterns of S. oualaniensis habitat in the South China Sea.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Climate-related changes in seasonal habitat pattern of Sthenoteuthis oualaniensis in the South China Sea

Fan

Chen

Feng

et al. 2021

Ecosyst Health Sustain

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“…It mainly feeds on cephalopods and crustaceans [35]. The chlorophyll a concentration in the waters directly affects the biomass and distribution of zooplankton, while the distribution of food biomass represented by zooplankton in turn affects the distribution of fishery resources [40]. Previous study showed that the chlorophyll a concentration had a lagging effect to fishery resources [41].…”

Section: Effects Of Environmental Factors On Cpuementioning

confidence: 99%

Environmental Influence on the Spatiotemporal Variability of Fishing Grounds in the Beibu Gulf, South China Sea

Wang

Yao

Chen

et al. 2020

JMSE

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The spatiotemporal distribution of fishing grounds in the Beibu Gulf and its relationship with marine environment were analyzed using the survey data of light falling-net vessels and satellite remote sensing data including sea surface temperature (SST), chlorophyll a concentration (Chl a) and net primary production (NPP), based on the generalized additive model (GAM) and the center of gravity (COG) of fishing grounds. The results showed that the total deviance explained by GAM for the catch per unit effort (CPUE) in the Beibu Gulf was 42.9%, in which SST was the most important influencing factor on CPUE, with a relative contribution of 40%; followed by latitude, Chl a, month and NPP, with relative contributions of 25.2%, 19%, 10.4% and 5.4%, respectively. Fishing grounds in the Beibu Gulf were mainly distributed in waters with SST of 27–29 °C, Chl a of 0.5–1.5 mg m−3 and NPP of 500–700 mg m−2 d−1. Light falling-net fishing grounds were concentrated in waters with latitude of 18.5° N and 20–20.25° N. There was a significant correlation between the mean latitude of optimum NPP and the latitudinal COG of CPUE, with the R2 being 0.91. These were connected with environmental factors such as the northeast monsoon that began in autumn and winter, warm pools near 19° N and local upwelling in the Beibu Gulf.

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“…For this reason, environmental factors play a critical role in the life cycle of U. chinensis. Studies showed that cephalopods are sensitive to water temperature [5][6][7][8][9], marine primary productivity [10], and food supply [11], with temperature being the key factor affecting the population biomass and the species' distribution [12,13]. Such conditions could impact the population dynamics by acting on the spawning activity and recruitment [7,8,14].…”

Section: Introductionmentioning

confidence: 99%

The Role of Environmental Factors on the Fishery Catch of the Squid Uroteuthis chinensis in the Pearl River Estuary, China

Wang

Yao

et al. 2021

JMSE

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The Pearl River Estuary (PRE) is one of the major fishing grounds for the squid Uroteuthis chinensis. Taking that into consideration, this study analyzes the environmental effects on the spatiotemporal variability of U. chinensis in the PRE, on the basis of the Generalized Additive Model (GAM) and Clustering Fishing Tactics (CFT), using satellite and in situ observations. Results show that 63.1% of the total variation in U. chinensis Catch Per Unit Effort (CPUE) in the PRE could be explained by looking into outside factors. The most important one was the interaction of sea surface temperature (SST) and month, with a contribution of 26.7%, followed by the interaction effect of depth and month, fishermen’s fishing tactics, sea surface salinity (SSS), chlorophyll a concentration (Chl a), and year, with contributions of 12.8%, 8.5%, 7.7%, 4.0%, and 3.1%, respectively. In summary, U. chinensis in the PRE was mainly distributed over areas with an SST of 22–29 °C, SSS of 32.5–34‰, Chl a of 0–0.3 mg × m−3, and water depth of 40–140 m. The distribution of U. chinensis in the PRE was affected by the western Guangdong coastal current, distribution of marine primary productivity, and variation of habitat conditions. Lower stock of U. chinensis in the PRE was connected with La Niña in 2008.

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Environmental effects on the spatiotemporal variability of purpleback flying squid in XishaZhongsha waters, South China Sea

Cited by 24 publications

References 24 publications

Climate-related changes in seasonal habitat pattern of Sthenoteuthis oualaniensis in the South China Sea

Climate-related changes in seasonal habitat pattern of Sthenoteuthis oualaniensis in the South China Sea

Environmental Influence on the Spatiotemporal Variability of Fishing Grounds in the Beibu Gulf, South China Sea

The Role of Environmental Factors on the Fishery Catch of the Squid Uroteuthis chinensis in the Pearl River Estuary, China

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