Collection and aging of greater amberjack Seriola dumerili larvae and juveniles around the Penghu Islands, Taiwan

Hasegawa, Takamasa; Yeh, Hsin‐Ming; Chen, June-Ru; Kuo, C. M.; Kawabe, Ryo; Sakakura, Yoshitaka

doi:10.1007/s10228-016-0543-6

Cited by 6 publications

(7 citation statements)

References 9 publications

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“…Our findings highlighted a significant relationship between observed S. dumerili catch rates and oceanic environments, with the species distributed from the southern part to the northern part across the TS. Hasegawa et al [13,16] reported that S. dumerili is a common species around the Taiwan Bank and distributed between the southern and northern parts of the TS. This study revealed that the predicted catch rates of S. dumerili distribution were highest in the northern region of TS during spring; the catch rates were high, and the area with high catch rates was widely distributed southward to northward during summer and comparatively, it predicted lower rates in autumn and increased predicted catch rates again in the southern part of TS, and relatively higher prediction in the northeastern part Taiwan but not matching the observed catch rates in the winter.…”

Section: Predicted Spatial Distribution Pattern Of the Greater Amberjackmentioning

confidence: 99%

“…The greater amberjack (S. dumerili) is mainly distributed in temperate to tropical waters [12,13]. It is one of the most profitable commercial and recreational fish and a key aquaculture species [14][15][16]. Several populations of the species have been identified, two off the coast of the United States and two off the coast of East Asia in the East China Sea (ECS) and South China Sea (SCS) [13].…”

Section: Introductionmentioning

confidence: 99%

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Variability in the Spatiotemporal Distribution Patterns of Greater Amberjack in Response to Environmental Factors in the Taiwan Strait Using Remote Sensing Data

et al. 2022

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The environmental characteristics of the Taiwan Strait (TS) have been linked to variations in the abundance and distribution of greater amberjack (Seriola dumerili) populations. Greater amberjack is a commercially and ecologically valuable species in ecosystems, and its spatial distribution patterns are pivotal to fisheries management and conservation. However, the relationship between the catch rates of S. dumerili and the environmental changes and their impact on fish communities remains undetermined in the TS. The goal of this study was to determine the spatiotemporal distribution pattern of S. dumerili with environmental characteristics in the TS from south to north (20°N–29°N and 115°E–127°E), applying generalized additive models (GAMs) and spatiotemporal fisheries data from logbooks and voyage data recorders from Taiwanese fishing vessels (2014–2017) as well as satellite-derived remote sensing environmental data. We used the generalized linear model (GLM) and GAM to analyze the effect of environmental factors and catch rates. The predictive performance of the two statistical models was quantitatively assessed by using the root mean square difference. Results reveal that the GAM outperforms the GLM model in terms of the functional relationship of the GAM for generating a reliable predictive tool. The model selection process was based on the significance of model terms, increase in deviance explained, decrease in residual factor, and reduction in Akaike’s information criterion. We then developed a species distribution model based on the best GAMs. The deviance explained indicated that sea surface temperature, linked to high catch rates, was the key factor influencing S. dumerili distributions, whereas mixed layer depth was the least relevant factor. The model predicted a relatively high S. dumerili catch rate in the northwestern region of the TS in summer, with the area extending to the East China Sea. The target species is strongly influenced by biophysical environmental conditions, and potential fishing areas are located throughout the waters of the TS. The findings of this study showed how S. dumerili populations respond to environmental variables and predict species distributions. Data on the habitat preferences and distribution patterns of S. dumerili are essential for understanding the environmental conditions of the TS, which can inform future priorities for conservation planning and management.

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Section: Predicted Spatial Distribution Pattern Of the Greater Amberjackmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Variability in the Spatiotemporal Distribution Patterns of Greater Amberjack in Response to Environmental Factors in the Taiwan Strait Using Remote Sensing Data

et al. 2022

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“…Detailed life history information is needed to effectively guide the fisheries management of this valuable resource. To date, the available life history data on the greater amberjack have been based almost entirely on assessments of the age, growth, mortality, and prey items of subadults and adults (Andaloro & Pipitone, 1997;Harris et al, 2007;Humphreys, 1980;Manooch & Potts, 1997;Sley et al, 2016;Thompson et al, 1999) and the early life history of juveniles (Deudero et al, 1999;Hasegawa et al, 2020;Hasegawa, Takatsuki, et al, 2017;Hasegawa, Yeh, et al, 2017;Wells & Rooker, 2004). Despite the importance of fish movements and migrations, data on adult greater amberjack are limited (Jackson et al, 2018;Murie et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…The tropical and temperate species of genus Seriola are thought to have diverged 55 million years ago based on phylogenetic analysis (Swart et al, 2015). In addition, the spawning grounds of yellowtail (S. quinqueradiata) and greater amberjack in the ECS have been thought to differ based on the distribution of juveniles of both species (Hasegawa, Takatsuki, et al, 2017;Hasegawa, Yeh, et al, 2017;Nakada, 2008). These previous studies imply that the spawning grounds of both species may have changed recently.…”

Section: Introductionmentioning

confidence: 99%

Migration and spawning behavior of the greater amberjack Seriola dumerili in eastern Taiwan

Tone

Nakamura

Chiang

et al. 2021

Fisheries Oceanography

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Greater amberjack (Seriola dumerili) is an important fishery resource with a circumglobal distribution from tropical to temperate waters. Here, we investigated the spawning migration and habitat utilization of S. dumerili in the East China Sea (ECS). Archival tags were attached to 22 adult fish to examine their horizontal and vertical movements and estimate the spawning ground. S. dumerili were captured and released in the coastal waters of eastern Taiwan on November of 2016 and 2017.Information from seven pop-up satellite archival tags and seven depth-temperature recorders was recovered. Almost all of the fish stayed in the Taiwanese exclusive economic zone. Most individuals moved from released site to the southern edge of the ECS and showed behavior associated with the topographic features in winter (November to December). These phenomena may be related to foraging and be driven by oceanographic features such as the seasonal monsoon and the Kuroshio.The fish then migrated to the south offshore area of Taiwan in January and February.During their southward migration, the fish experienced a slowly elevated water temperature regime (SETR), which is one of the environmental factors that induce final oocyte maturation. In the spawning season (February to April), tagged females exhibited continuous diel vertical movements (DVMs) after experiencing the SETR. These continuous DVMs were observed over a wide geographic range from north to south in the Kuroshio off eastern Taiwan. Our study demonstrated that the putative spawning ground of S. dumerili must extend further in a north-south direction than predicted in a previous study.

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“…To effectively develop strategies for managing this valuable fishery resource, information on the habitat preferences of and climate-related environmental effects on the fish is required. However, although fish habitat distribution and climate-related environmental effects have been reported to be essential factors affecting fish populations, the data available on the greater amberjack population in the waters of Taiwan are almost entirely based on assessments of age and growth (Hasegawa et al, 2017;Hasegawa et al, 2020), migration, and spawning (Tone et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Habitat changes and catch rate variability for greater amberjack in the Taiwan Strait: The effects of El Niño–southern oscillation events

Mammel

Lee²,

Naimullah³

et al. 2023

Front. Mar. Sci.

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El Niño–Southern Oscillation (ENSO) is a crucial oceanographic phenomenon that leads to interannual fluctuations in the climate and ecosystem productivity of tropical and subtropical areas. These fluctuations affect the suitability of habitats for many commercial fish species. However, detailed information on the effects of this major phenomenon and the resulting environmental changes on the habitat and catch rates of the economically and ecologically crucial species of the greater amberjack (Seriola dumerili) in the Taiwan Strait (TS) is lacking. In this study, we employed a weighted habitat suitability index (HSI) modeling method and used remotely sensed marine environmental data as well as data from recorders in Taiwanese fishing vessels (in 2014–2019) to understand the effects of ENSO events on the habitat suitability and catch rates for greater amberjack in the TS. Analysis of variance revealed that environmental factors substantially influenced greater amberjack habitats and catch rates during ENSO events across seasons. The catch rates were high in spring and summer in the southern and northern TS and in autumn and winter in the southern TS. The catch rates were higher in spring, summer, and autumn (>9.0 kg/h) in El Niño years, and in winter, the catch rates were higher in normal years (>12.0 kg/h) and lower in La Niña years. The predicted HSI for the southern and northern TS revealed that greater amberjack populations were predominantly distributed at 20–24°N and 24–28°N, respectively. Opposite habitat suitability was synchronously found in spring and summer during ENSO events, with higher HSI values recorded in spring in El Niño and normal years and higher HSI values recorded in summer in La Niña years. In winter, the HSI values of the southern and northern TS were higher in El Niño and normal years and substantially lower in La Niña years. Habitat suitability was extremely low in autumn. These findings imply that ENSO events play a key role in regulating environmental conditions and affect the catch rates and habitat suitability for the greater amberjack in the TS.

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Collection and aging of greater amberjack Seriola dumerili larvae and juveniles around the Penghu Islands, Taiwan

Cited by 6 publications

References 9 publications

Variability in the Spatiotemporal Distribution Patterns of Greater Amberjack in Response to Environmental Factors in the Taiwan Strait Using Remote Sensing Data

Variability in the Spatiotemporal Distribution Patterns of Greater Amberjack in Response to Environmental Factors in the Taiwan Strait Using Remote Sensing Data

Migration and spawning behavior of the greater amberjack Seriola dumerili in eastern Taiwan

Habitat changes and catch rate variability for greater amberjack in the Taiwan Strait: The effects of El Niño–southern oscillation events

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