Reproductive biology of the narrow-barred Spanish mackerel (Scomberomorus commerson) in the central Taiwan Strait, western Pacific

Weng, Jinn-Shing; Yu, Shwu-Feng; Lo, Yun-Sin; Shiao, Jen‐Chieh; Lee, Ming-An; Liu, Kwang‐Ming; Huang, Hsing-Han; Wang, Yi-Chen; Wu, Li-Chen

doi:10.1016/j.dsr2.2020.104755

Cited by 5 publications

(6 citation statements)

References 21 publications

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“…Hikmawansyah et al (2019) also reported negative allometric growth for the white pomfret in Pangandaran Waters (b= 2.371; r= 0.9332). For mackerel, the result of present study was contrary to the result of Weng et al (2020) who reported a positive allometric growth with very strong correlation for mackerel fish in Central Taiwan Street (b> 3, r= 0.754; n= 110). The differences in the level of correlation between length and weight in fish could be due to both internal (intrinsic) and external (extrinsic) factors which are generally difficult to control.…”

Section: Allometric Growthcontrasting

confidence: 99%

Growth, mortality and exploitation rate of Pampus argenteus, Parastromateus niger and Scomberomorus commerson in Sebatik Waters, Indonesia

Salim

Atieqah

Handayani³

et al. 2020

Biodiversitas

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Abstract. Salim G, Handayani KR, Indarjo A, Ransangan J, Atieqah N. 2020. Growth, mortality and exploitation rate of Pampus argenteus, Parastromateus niger and Scomberomorus commerson in Sebatik Waters, Indonesia. Biodiversitas 21: 5363-5372. The economic revenue of the local government of the Indonesian Sebatik Island relies much on the exploitation of its rich marine biodiversity. One of the important economic activities is the capture fisheries of commercially important fishes such as the white pomfret (Pampus argenteus) and black pomfret (Parastromateus niger), and mackerel fish (Scomberomorus commerson). The current study aims to estimate the growth, condition factor, and exploitation rate of the fish species for developing sustainable fishery management. Fish samplings were conducted in the Sebatik Waters, Nunukan District, North Kalimantan Province, Indonesia from June to July 2020. The fish were caught using gillnet at daytime (pomfrets) and nighttime (mackerel), respectively. Then, 82, 73, and 83 specimens of white pomfret, black pomfret, and mackerel were randomly selected for the length-weight relationship, condition factor, and exploitation rate analysis, respectively. The results revealed that the size distribution of the white pomfret population in the coastal waters of Sebatik Island ranged from 220.0 to 351.0 mm, black pomfret ranged from 231.0 to 362.0 mm and mackerel, ranged from 242.0 to 432.0 mm. All the fish species exhibited negative allometric (b<3) weight and length relationship with moderate to strong correlation. About 50% and 53.42% of the white pomfrets and black pomfrets were characterized by thin body shape. However, 49.40% of the mackerels were characterized by fat body shape. The asymptotic length (L∞) for white pomfrets was recorded at 359.133 mm; k value of 0.0427 mm/year with r-value of 0.9918 and the t0 value of 1.11/year. For black pomfret, the L∞ was estimated at 370.22 mm; k value of 0.043 mm/year with r-value at 0.9919 and the t0 value of 1.104/year. For mackerel, the L∞ value was estimated at 492.724 mm, k-value of 0.0246 mm/year with r-value of 0.9634, and the t0 value of 1.322/year. The total mortality, fishing mortality and natural mortality (Z, F, and N, respectively) and exploitation rate (E) for white fish were recorded at 113.76%, 80.58%, 33.18%, and 70.83%, respectively. For black pomfret, it recorded 113.15% (Z), 79.97% (F), 32.75% (N) and 70.67% (E). For mackerel, it recorded 109.87% (Z), 66.29% (F), 43.58% (N) and 60.33% (E). The high exploitation rate (>50%) and fishing mortality (>60%) of all the fish species analyzed in this study indicate that there is a sign of overfishing to these fish resources in the coastal waters of Sebatik island. Hence, sustainable fishing management is timely needed to prevent depletion of these important fishery resources. Such management can include fishing restrictions for small-sized and first mature fish, close fishing season, and strict requirement for fishing permits.

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Section: Allometric Growthcontrasting

confidence: 99%

Growth, mortality and exploitation rate of Pampus argenteus, Parastromateus niger and Scomberomorus commerson in Sebatik Waters, Indonesia

Salim

Atieqah

Handayani³

et al. 2020

Biodiversitas

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“…Hsiao et al (2021) revealed that the fishery resource structures in the frontal habitat of the Taiwan Bank are supported by both warm-and cold-water species, including S. commerson. Weng et al (2020) reported the presence of hydrated and postovulatory oocytes for S. commerson in the central TS, implying that this area could be a spawning ground for this species. Thus, the aggregative response of biological interactions links primary productivity (PP) and top predators could be feeding and spawning grounds for S. commerson among different seasons in the upwelling of southwestern TS.…”

Section: Discussionmentioning

confidence: 98%

“…Trammel nets are operated mostly in the TS, whereas longlines are operated off eastern Taiwan. Moreover, Weng et al (2020) revealed that S. commerson are caught using drift gill nets and trolling lines in the Taiwan Bank. Trammel nets are composed of single, double, or triple layers of netting kept vertical by floats on the headrope and weights on the groundrope (Karakulak and Erk, 2008).…”

Section: Discussionmentioning

confidence: 99%

“…The GAM results revealed that CHL and SST were the dominant environmental factors affecting the CRs. The spawning season of S. commerson was estimated to be from March through August in the TS, and the SST might influence the species' gametogenesis, gonad atresia, and spawning behavior (Lam, 1983;Weng et al, 2020). The area between the Taiwan Bank and the Penghu Islands is a major upwelling region and key fishing ground for S. commerson.…”

Section: Discussionmentioning

confidence: 99%

“…Scomberomorus species, which include the narrow-barred Spanish mackerel (Scomberomorus commerson), Japanese Spanish mackerel (Scomberomorus niphonus), and spotted Spanish mackerel (Scomberomorus koreanus), are crucial commercial species in the WT (Lin et al, 2020;Weng et al, 2020). According to the life-history features of Scomberomorus spp., the swimming dispersal of larvae and adults of these species is extensive, ensuring connectivity among stocks and causing genetic homogenization across distant populations (Shoji and Tanaka, 2005;Shui et al, 2009;Weng et al, 2020). Among these species, S. commerson is the most commonly caught, which accounts for 80% of the total production of Scomberomorus species in Taiwan (Figure 1;…”

Section: Introductionmentioning

confidence: 99%

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Distribution and Catch Rate Characteristics of Narrow-Barred Spanish Mackerel (Scomberomorus commerson) in Relation to Oceanographic Factors in the Waters Around Taiwan

et al. 2021

Self Cite

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This study investigated the relationship of the catch rates (CRs) of Spanish mackerel (Scomberomorus commerson) with oceanographic factors in the waters around Taiwan by using high-resolution fishery and environmental data for the period 2011–2016. The investigation results revealed that trammel nets accounted for 69.79% of the total catch of S. commerson and were operated mostly in the Taiwan Strait (TS). We noted seasonal variations in the distribution of high CRs. These CRs were observed in the southwestern TS, including the waters along the southwestern coast of Taiwan and around the Penghu Islands, and extended to the Taiwan Bank during autumn; they increased in winter. To predict the spatial and temporal patterns of Spanish mackerel density and their relationship with oceanographic and spatiotemporal variables, generalized additive models were used. These models explained 48.4% of the total deviance, which was consistent with the assumed Gaussian distribution. Moreover, all variables examined were significant CR predictors (p < 0.05). Latitude and longitude were the key factors influencing the spatiotemporal distribution of S. commerson, and sea surface chlorophyll a concentration was a key oceanographic factor. Observing projected changes in El Niño/Southern Oscillation events for S. commerson revealed that CRs were higher and distributed further southward during La Niña events than during other events. We inferred that the S. commerson distribution gradually moved toward the southwest with the northeast monsoon, which was enhanced during La Niña in winter.

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Comparative research on ocean top predators by CLIOTOP: Understanding shifts in oceanic biodiversity under climate change

Evans

Arrizabalaga

Brodie

et al. 2020

Deep Sea Research Part II: Topical Studies in Oceanography

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Reproductive biology of the narrow-barred Spanish mackerel (Scomberomorus commerson) in the central Taiwan Strait, western Pacific

Cited by 5 publications

References 21 publications

Growth, mortality and exploitation rate of Pampus argenteus, Parastromateus niger and Scomberomorus commerson in Sebatik Waters, Indonesia

Growth, mortality and exploitation rate of Pampus argenteus, Parastromateus niger and Scomberomorus commerson in Sebatik Waters, Indonesia

Distribution and Catch Rate Characteristics of Narrow-Barred Spanish Mackerel (Scomberomorus commerson) in Relation to Oceanographic Factors in the Waters Around Taiwan

Comparative research on ocean top predators by CLIOTOP: Understanding shifts in oceanic biodiversity under climate change

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