Reproductive traits of the western Pacific gizzard shad Nematalosa come: implications for conservation and management in a population at its distributional margin

Uehara, Masato; Tachihara, Katsunori

doi:10.1007/s10641-014-0231-1

Cited by 2 publications

(4 citation statements)

References 14 publications

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“…On floodplains with short inundation periods (~2 months) in the Australian wet-dry tropics, the development of reproductive tissues was fueled by resources available at the time of spawning in the herbivorous fish, Nematalosa come [ 4 ]. Therefore, the reproductive cycle of this ‘income-breeding’ fish, not known to undertake upstream spawning migrations [ 22 ], is coupled with the temporally abundant resources from floodplains, despite the short inundation duration.…”

Section: Introductionmentioning

confidence: 99%

Temporal Uncoupling between Energy Acquisition and Allocation to Reproduction in a Herbivorous-Detritivorous Fish

et al. 2016

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Although considerable knowledge has been gathered regarding the role of fish in cycling and translocation of nutrients across ecosystem boundaries, little information is available on how the energy obtained from different ecosystems is temporally allocated in fish bodies. Although in theory, limitations on energy budgets promote the existence of a trade-off between energy allocated to reproduction and somatic growth, this trade-off has rarely been found under natural conditions. Combining information on RNA:DNA ratios and carbon and nitrogen stable-isotope analyses we were able to achieve novel insights into the reproductive allocation of diamond mullet (Liza alata), a catadromous, widely distributed herbivorous-detritivorous fish. Although diamond mullet were in better condition during the wet season, most reproductive allocation occurred during the dry season when resources are limited and fish have poorer body condition. We found a strong trade-off between reproductive and somatic investment. Values of δ13C from reproductive and somatic tissues were correlated, probably because δ13C in food resources between dry and wet seasons do not differ markedly. On the other hand, data for δ15N showed that gonads are more correlated to muscle, a slow turnover tissue, suggesting long term synthesis of reproductive tissues. In combination, these lines of evidence suggest that L. alata is a capital breeder which shows temporal uncoupling of resource ingestion, energy storage and later allocation to reproduction.

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Section: Introductionmentioning

confidence: 99%

Temporal Uncoupling between Energy Acquisition and Allocation to Reproduction in a Herbivorous-Detritivorous Fish

et al. 2016

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“…In this study, all three species showed a significant female bias pattern. This phenomenon has also been documented in other clupeiform species, including Australian River Gizzard Shad Nematalosa erebi (Puckridge and Walker 1990), European Anchovy Engraulis encrasicolus (Basilone et al 2004), Shortbody Sardine Sardinella maderensis (Uehara and Tachihara 2015;Baali et al 2017), Brazilian Menhaden Brevoortia aurea (Lajud et al 2016), and Round Sardinella Sardinella aurita (Baali et al 2017). Sex ratios of the same species may vary from female to male biased in different populations (Chen and Hsiao 1996;Millaán 1999;Basilone et al 2004;Uehaa and Tachihara 2015).…”

Section: Discussionmentioning

confidence: 69%

“…Most clupeiform species studied have shown a larger length at 50% maturity (L 50 ) for females compared to males, as observed in Marini's Anchovy Anchoa marinii (López et al 2015), Chacunda Gizzard Shad Anodontostoma chacunda (Ramya et al 2019), Brazilian Menhaden (Lajud et al 2016), Western Pacific Gizzard Shad Nematalosa come (Chen and Hsiao 1996;Uehara and Tachihara 2015), Australian River Gizzard Shad (Puckridge and Walker 1990), Japanese Gizzard Shad Nematalosa japonica (Uehara and Tachihara 2012), and Shortbody Sardine (Baali et al 2017). In our study, SL 50 values of females were also larger than those of males in Gray's Grenadier Anchovy, Osbeck's Grenadier Anchovy, and Chinese Gizzard Shad.…”

Section: Discussionmentioning

confidence: 93%

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Reproductive Dynamics of Three Important Clupeiform Food Fishes in the Min River Estuary and Its Adjacent Nearshore Waters, China

et al. 2021

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Reproductive dynamics of three important clupeiform food fishes (Gray's Grenadier Anchovy Coilia grayii, Osbeck's Grenadier Anchovy Coilia mystus, and Chinese Gizzard Shad Clupanodon thrissa) were studied in the largest estuary of Fujian Province, China: the Min River estuary and its adjacent nearshore waters. Samples were collected from May 2017 through July 2020 using trammel nets and trawlers. Females were observed to be significantly larger than males for Gray's and Osbeck's grenadier anchovies but not for Chinese Gizzard Shad. The overall sex ratios of all three species showed a significant female bias. Gonad histology was applied to determine spawning season, peak spawning season, and length at 50% maturity for females and males. The spawning season of females lasted from April to September (peak spawning season in April-July) for Gray's Grenadier Anchovy, from March to September (peak in March-June) for Osbeck's Grenadier Anchovy, and from April to July (peak in May-July) for Chinese Gizzard Shad. Spawning seasons of males were similar to those of females. The estimated SLs at 50% maturity for females and males, respectively, were 11.3 and 9.4 cm for Gray's Grenadier Anchovy, 12.7 and 10.4 cm for Osbeck's Grenadier Anchovy, and 12.7 and 11.6 cm for Chinese Gizzard Shad. The spawning grounds for these species were located for the first time: in the Min River estuary for Gray's Grenadier Anchovy, mainly in the adjacent nearshore waters and extending to the estuary for Osbeck's Grenadier Anchovy, and mainly in the lower reaches of the Min River and extending to the estuary for Chinese Gizzard Shad. As important food fishes in the region, stocks of these three species have shown certain degrees of overexploitation; therefore, stock assessments and management plans are necessary to achieve their sustainable fisheries.

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Reproductive traits of the western Pacific gizzard shad Nematalosa come: implications for conservation and management in a population at its distributional margin

Cited by 2 publications

References 14 publications

Temporal Uncoupling between Energy Acquisition and Allocation to Reproduction in a Herbivorous-Detritivorous Fish

Temporal Uncoupling between Energy Acquisition and Allocation to Reproduction in a Herbivorous-Detritivorous Fish

Reproductive Dynamics of Three Important Clupeiform Food Fishes in the Min River Estuary and Its Adjacent Nearshore Waters, China

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