Environmental DNA reveals nonmigratory individuals of <i>Palaemon paucidens</i> overwintering in Lake Biwa shallow waters

Wu, Qianqian; Kawano, Ken; Uehara, Yoshitoshi; Okuda, Noboru; Hongo, Masamichi; Tsuji, Satsuki; Yamanaka, Hiroki; Minamoto, Toshifumi

doi:10.1086/697542

Cited by 24 publications

(25 citation statements)

References 33 publications

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“…Wu et al (2019) found that relatively large individuals started to reproduce between May and July, with a peak detected between August and September. While it has been reported that most individuals move to bottom sites in winter (Harada, 1966;Nishino, 1983), we found that nonmigratory individuals overwinter in shallow waters (Wu et al, 2018).…”

Section: Introductioncontrasting

confidence: 66%

“…Wu et al (2018) identified a positive correlation between eDNA concentrations and the abundance of shrimps, and we assume this correlation to hold for our research. We tracked distribution of P. paucidens eDNA in Lake Biwa and found that it was determined by season and site.…”

Section: Discussionmentioning

confidence: 58%

“…Wu et al (2018) reported that these differences would not influence the results. Wu et al (2018) reported that these differences would not influence the results.…”

Section: Freshwater Lagoon Samplingmentioning

confidence: 99%

“…Primers and a probe were established in previous study (Wu et al, 2018) that can specifically amplify a 166-bp fragment of 16S rRNA genes of P. paucidens (Table 1). Primers and a probe were established in previous study (Wu et al, 2018) that can specifically amplify a 166-bp fragment of 16S rRNA genes of P. paucidens (Table 1).…”

Section: Qpcr Quantification Of Ednamentioning

confidence: 99%

“…In recent years, environmental DNA (eDNA) analysis has been widely used for species detection and biodiversity monitoring (Ficetola, Miaud, Pompanon, & Taberlet, 2008;Thomsen et al, 2012). In combination with quantitative polymerase chain reaction (qPCR), eDNA concentrations can be used as a proxy for it abundance of crustacean species (Carim et al, 2016;Wu et al, 2018). Environmental DNA analysis has been applied to macroorganisms (Ficetola et al, 2008;Jerde, Mahon, Chadderton, & Lodge, 2011;Minamoto, Yamanaka, Takahara, Honjo, & Kawabata, 2012), and to date, many eDNA analyses have reported successful monitoring of the presence/absence of rare species (Dejean et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Habitat selection and migration of the common shrimp, Palaemon paucidens in Lake Biwa, Japan—An eDNA‐based study

Kawano

Ishikawa

et al. 2019

Environmental DNA

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Palaemon paucidens has a large population and is an important food source for fish in Lake Biwa, Japan. They are abundant in shallow waters from spring to summer, after which most individuals migrate to offshore deep areas where they remain during autumn and winter. However, some individuals are nonmigratory, remaining in shallow waters over winter. It has been reported that P. paucidens individuals have declined in recent years; a better understanding of its seasonal distribution is needed to manage this species, and basic information on its seasonal distribution is indispensable. We tracked the environmental DNA (eDNA) distribution of P. paucidens in Lake Biwa over a year using a quantitative real-time polymerase chain reaction method.We collected water samples from offshore (both from the surface and from the benthic) and from shallow shore sites adjacent to the shorelines of the main lake and connecting freshwater lagoons. Offshore sampling took place in summer and winter, and shallow shore and lagoon sampling in all four seasons. During summer, eDNA concentrations were significantly higher in shallow and lagoon areas than offshore bottom sites. Conversely, during winter, eDNA concentrations were higher in offshore bottom sites, and relatively high and low eDNA concentrations in lagoons and shallow shore, respectively. These results most likely reflect the spatial and temporal distribution of this species in Lake Biwa. The eDNA concentrations peaked in early August at shallow shore sites in the main lake, with a significant decline in mid-October, while low eDNA concentrations were recorded at offshore bottom sites in late August. These results suggest that P. paucidens migrates from shallow waters to offshore bottom sites between early August and mid-October. These results provide important information for the management of this species. K E Y W O R D Senvironmental DNA (eDNA), Lake Biwa, migration, Palaemon paucidens, quantitative real-time PCR, spatial and temporal distribution | 55 WU et al.

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Section: Introductioncontrasting

confidence: 66%

Section: Discussionmentioning

confidence: 58%

“…Wu et al (2018) reported that these differences would not influence the results. Wu et al (2018) reported that these differences would not influence the results.…”

Section: Freshwater Lagoon Samplingmentioning

confidence: 99%

Section: Qpcr Quantification Of Ednamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Habitat selection and migration of the common shrimp, Palaemon paucidens in Lake Biwa, Japan—An eDNA‐based study

Kawano

Ishikawa

et al. 2019

Environmental DNA

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Fine‐tuning the performance of abundance estimation based on environmental DNA (eDNA) focusing on eDNA particle size and marker length

Yamanaka

2022

Ecology and Evolution

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The life history with seasonal migration of the lacustrine shrimpPalaemon paucidensin an ancient lake in Japan

Yasuda

Minamoto

et al. 2019

Ecosphere

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The lacustrine shrimp Palaemon paucidens undertakes seasonal migration between shallow waters in spring and summer to deep waters in autumn and winter in Lake Biwa in Japan. Previous studies hypothesized that the migration to deep waters was for hibernation. The findings of this study oppose this hypothesis. We showed that P. paucidens is physiologically active in deep waters during winter; that the carbon stable isotope ratio indicated that the species forages in winter and that there was a difference in food sources between summer and winter; that lipid content was highest in January; and that gene expression activity (as measured by the RNA/DNA ratio) remained constant throughout the year. Thus, P. paucidens individuals that migrate to the bottom are likely to forage in winter, but do not hibernate. Nutrients gained in winter were not reflected in individual growth but may have been allocated to gonadal growth and the production of gametes, suggesting that winter foraging by this species in deep sites contributes to obtain resources for reproductive investment. In addition, we found that both small individuals with no reproductive experience and relatively large females with reproductive experience overwintered, indicating that P. paucidens has a life‐cycle that is longer than 1 yr in Lake Biwa.

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Environmental DNA reveals nonmigratory individuals of Palaemon paucidens overwintering in Lake Biwa shallow waters

Cited by 24 publications

References 33 publications

Habitat selection and migration of the common shrimp, Palaemon paucidens in Lake Biwa, Japan—An eDNA‐based study

Habitat selection and migration of the common shrimp, Palaemon paucidens in Lake Biwa, Japan—An eDNA‐based study

Fine‐tuning the performance of abundance estimation based on environmental DNA (eDNA) focusing on eDNA particle size and marker length

The life history with seasonal migration of the lacustrine shrimpPalaemon paucidensin an ancient lake in Japan

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