Migration ecology of juvenile temperate seabass <i>Lateolabrax japonicus</i>: a carbon stable‐isotope approach

Fuji, Taiki; Kasai, Atsushi; Suzuki, Keita W.; Ueno, Masahiro; Yamashita, Yoh

doi:10.1111/j.1095-8649.2011.02990.x

Cited by 22 publications

(16 citation statements)

References 25 publications

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“…On local scales, isotopic gradients associated with changes in production sources have been used to track habitat use and movements between discrete regions. Fuji et al (2011) recorded an isotopic gradient in prey mysid species along an estuary, and used this to demonstrate ontogenetic migrations in the temperate seabass Lateolabrax japonicus (Cuvier 1828) between freshwater and estuarine zones of the estuary, and demonstrate the nutritional benefit of migration into freshwater zones. Rodgers et al , (2008) explored isotopic gradients between coasts and fjords in southern New Zealand to investigate recruitment patterns and juvenile migrations in blue cod Parapercis colias (Forster 1801).…”

Section: Key Examples Of Use Of C and N To Track Migrationsmentioning

confidence: 99%

Identifying migrations in marine fishes through stable‐isotope analysis

Trueman

MacKenzie

Palmer

2012

Journal of Fish Biology

137

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The isotopic composition of many elements varies across both land and ocean surfaces in a predictable fashion. These stable-isotope ratios are transferred into animal tissues, potentially providing a powerful natural geospatial tag. To date, most studies using stable isotopes as geolocators in marine settings have focussed on mammals and seabirds conducting large ocean-basin scale migrations. An increasing understanding of isotopic variation in the marine environment, and improved sampling and analytical techniques, however, means that stable isotopes now hold genuine promise as a natural geolocation tag in marine fishes. Here, the theoretical background underpinning the use of stable isotopes of C, N and O in otolith, scale and muscle tissues as geolocation tools in the marine environment is reviewed, and examples of their applications are provided.

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Section: Key Examples Of Use Of C and N To Track Migrationsmentioning

confidence: 99%

Identifying migrations in marine fishes through stable‐isotope analysis

Trueman

MacKenzie

Palmer

2012

Journal of Fish Biology

137

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“…After the onshore transport, early juveniles at the size of c . 20 mm standard length (SL) are distributed in the freshwater zone of the Yura River estuary as well as in the various coastal areas of Tango Bay in April and reside there until July (Fuji et al ., , ).…”

Section: Methodsmentioning

confidence: 99%

“…2 weeks; Ohta, ) were regarded to have entered the low salinity area of the estuary. Juveniles immigrate into the Yura River estuary mainly at sizes ranging from 18 to 30 mm SL (Fuji et al ., ), although juveniles larger than 30 mm SL also migrate incidentally to the estuary (Fuji et al ., ). These two migration patterns have different ecological functions.…”

Section: Methodsmentioning

confidence: 99%

“…The temperate seabass spawn in the offshore area of Tango Bay, and larvae hatch and migrate or are transported from open waters to coastal areas (Islam et al, 2011). After the onshore transport, early juveniles at the size of c. 20 mm standard length (SL) are distributed in the freshwater zone of the Yura River estuary as well as in the various coastal areas of Tango Bay in April and reside there until July (Fuji et al, 2010(Fuji et al, , 2011.…”

Section: Study Field and The Early Life History Of Temperate Seabassmentioning

confidence: 99%

“…eelgrass beds (Hatanaka and Sekino, 1962a), sandy beaches (Fuji et al, 2010), tidal flats (Hibino et al, 2002) and estuaries (Matsumiya et al, 1982;Fuji et al, 2010;Iwamoto et al, 2010). Recently, the importance of estuaries as nursery areas for temperate seabass has been emphasised by several previous studies (Fuji et al, 2010(Fuji et al, , 2011(Fuji et al, , 2013Iwamoto et al, 2010;Islam et al, 2011). Evaluating the relative contribution of estuaries to adult populations is noteworthy to assess estuarine nursery values.…”

Section: Introductionmentioning

confidence: 99%

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Importance of estuarine nursery areas for the adult population of the temperate seabass Lateolabrax japonicus, as revealed by otolith Sr:Ca ratios

Fuji

Kasai

Ueno

et al. 2016

Fisheries Oceanography

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Otolith Sr:Ca ratios were used to evaluate the contribution of estuarine nursery areas to the temperate seabass (Lateolabrax japonicus) population in Tango Bay, the Sea of Japan. Otolith Sr:Ca ratios of juveniles collected from freshwater, brackish and coastal areas were analysed to determine a criterion for distinguishing whether individuals used estuarine or coastal areas as nurseries. Otolith Sr:Ca ratios of adult seabass collected around Tango Bay were also analysed to detect the records of salinity that juveniles experienced and to estimate the contribution of each habitat. Sr:Ca ratios of the edges of otoliths of juveniles from freshwater areas were 2.4 9 10 À3 in average, which were significantly lower than those of juveniles collected from a coastal area (4.9 9 10 À3 in average) owing to differences in salinity conditions among these areas. Based on the threshold criterion determined by this difference, 39 out of 107 (36%) adult seabass were estimated to have used the estuary as a nursery during their juvenile stage according to their Sr:Ca chronologies. Despite the small area covered by estuarine nurseries compared with coastal waters, the Yura River estuary contributed considerably to the adult seabass population. This indicates estuaries play an important role as nurseries for seabass juveniles, and it should be noted that the estuaries are important nurseries to conserve the stocks of coastal fishes.

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Quantitative reconstruction of salinity history by otolith oxygen stable isotopes: An example of a euryhaline fish Lateolabrax japonicus

Hsieh

Shiao

Lin

et al. 2019

Rapid Comm Mass Spectrometry

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Rationale:Otolith strontium:calcium (Sr:Ca) ratios have been extensively used to study fish migration across a river, estuary and ocean at each life stage. However, otolith Sr:Ca ratios only explain partial variations in salinity and quantitative reconstruction of salinity history of fishes remains a challenge. Using a euryhaline fish Lateolabrax japonicus as an example, this study demonstrated an isotopic method of quantitatively reconstructing the salinity histories and habitat uses of the fish. Methods:Otolith oxygen stable isotopic ratios (δ 18 O oto values) were measured using a mass spectrometer for subsamples sequentially milled from the otolith core to the edge, and otolith Sr:Ca ratios were measured by an electron probe microanalyzer for the comparison. The mean water temperature within the studied area in the time period of each milled subsample was estimated from the Copernicus database. Based on an isotopic fractionation equation, each δ 18 O oto value and water temperature pair determined the water δ 18 O value, which was then converted into salinity using published linear equations or an equation that was newly generated for this study.Results: Individual fish clearly revealed different preferences in habitat use. The retrospectively reconstructed salinity history indicated that most L. japonicus inhabit and can spawn in seawater as well as in brackish estuaries. Few fish lived in freshwater during the young stage based on the analysis of δ 18 O oto profiles; however, otolith Sr:Ca ratios can only reveal freshwater residence and cannot distinguish residence in brackish water or seawater. Conclusions:This study demonstrated that otolith temporal microstructure and δ 18 O oto values are well-suited approaches for quantitative reconstruction of salinity histories of the fish. This method can improve the understanding of the habitat uses of other fishes inhabiting diverse habitats among the rivers, estuaries and oceans.

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Migration ecology of juvenile temperate seabass Lateolabrax japonicus: a carbon stable‐isotope approach

Cited by 22 publications

References 25 publications

Identifying migrations in marine fishes through stable‐isotope analysis

Identifying migrations in marine fishes through stable‐isotope analysis

Importance of estuarine nursery areas for the adult population of the temperate seabass Lateolabrax japonicus, as revealed by otolith Sr:Ca ratios

Quantitative reconstruction of salinity history by otolith oxygen stable isotopes: An example of a euryhaline fish Lateolabrax japonicus

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