Persistence, Extinction, and Recolonization of an Epibenthic Gastropod Population on an Intertidal Sandflat: 35-Y Contingent History of a Key Species of the Benthic Community in Metapopulation and Metacommunity Contexts

Tamaki, Akio; Takeuchi, Seiji

doi:10.2983/035.035.0419

Cited by 10 publications

(22 citation statements)

References 155 publications

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“…Around the western edge of the region, the largest local population in the region exists on the intertidal sandflat in Tomioka Bay (Tomioka sandflat; 32.521° N, 130.037° E) , Tamaki & Takeuchi 2016. Tomioka Bay forms a coastal boundary layer with water depths ≤30 m. Larvae released from the sandflat are transported across Tomioka Bay to Amakusa-nada, where the main nursery ground for larvae lies 10 to 20 km north to west of the sandflat (Tamaki & Miyabe 2000, 2013.…”

Section: Introductionmentioning

confidence: 99%

Phytoplankton as a principal diet for callianassid shrimp larvae in coastal waters, estimated from laboratory rearing and stable isotope analysis

Umezawa¹,

Tamaki²,

Suzuki³

et al. 2018

Mar. Ecol. Prog. Ser.

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Running page head: Umezawa et al.: Field diet of callianassid shrimp larvae ABSTRACT: The field diet of meroplanktonic decapod crustacean larvae is poorly known, despite standard use of microzooplankton as food in laboratory culture. Using callianassid shrimp Nihonotrypaea harmandi larvae collected from a 65 m deep inner-shelf location off mid-western Kyushu, Japan, between June and August 2012 and 2013 and mass-reared in the laboratory, phytoplankton-based diet through larval development (zoeae I−VI to decapodid) was demonstrated. When the pure-cultured diatom Chaetoceros gracilis was fed to zoeae, survival rate to decapodids was 3.4 to 3.9% in 26 to 40 d at 22°C, which was comparable to previous rearing results for zoeae fed microzooplankton. Trophic enrichment factors (TEFs) 1 from stable isotope (SI) analysis of zoeal whole-body tissue in the laboratory were 2.0‰ for δ C and 1.9‰ for δ 15 N. In the field water column, diatoms dominated the nano-to micro-sized plankton, accounting for 38 to 81% of the biovolume, followed by heterotrophic protists. The trophic position (TP) estimated from amino acid-specific δ 15 N values for the field-collected zoeae VI was 2.1 (TPGlu/Phe) or 2.7 (TPAla/Phe), suggesting that those zoeae fed on mixtures of phytoplankton and heterotrophs including protists. Bulk SI analyses were performed for particulate organic matter (POM; proxy for phytoplankton), microzooplankton (mainly calanoid copepods), and shrimp zoeae to elucidate the diet of larvae in the water column. A shift in SI from fresh to degraded POM was determined through the incubation of field-collected POM. Based on this shift during degradation and larval TEFs, phytoplankton and their sinking detritus with heterotrophic protists were estimated to be the principal diet for those larvae residing mostly below the chlorophyll maximum layer.

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Section: Introductionmentioning

confidence: 99%

Phytoplankton as a principal diet for callianassid shrimp larvae in coastal waters, estimated from laboratory rearing and stable isotope analysis

Umezawa¹,

Tamaki²,

Suzuki³

et al. 2018

Mar. Ecol. Prog. Ser.

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“…Since all turritellid species for which data are available reproduce seasonally (Allmon, 2011), fluctuations in cohort survival may also contribute to the observed periodic pattern in abundance. In another suspension-feeding marine gastropod with a similar lifespan and time to sexual maturity, the trochid Umbonium moniliferum (Lamarck, 1822), some populations identified as sinks were reliant on nearby source populations to persist, as recruitment was inhibited by ghost shrimp sediment destabilization, and exacerbated when there were high shrimp abundances (Tamaki & Takeuchi, 2016).…”

Section: Discussionmentioning

confidence: 99%

Distribution and abundance of turritelline gastropods (Cerithioidea: Turritellidae) in Hong Kong and the English Channel: implications for a characteristic fossil assemblage

et al. 2020

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Abundant species are typically also viewed as ecologically dominant, and are frequently used to characterize the communities in which they live. Such characteristic assemblages may also be used as indicators of environmental conditions, such as relative stability. Fossil and modern turritelline gastropods are often the most abundant species in the marine assemblages and communities in which they occur, forming ‘turritelline-dominated assemblages’ (TDAs). We use data on modern Turritella bacillum from waters around Hong Kong as a case study to analyse fluctuations in abundance over 25 years. While turritellines were not always dominant in the area surveyed (~1650 km2), populations were notably persistent, and rebound after decline of abundances occurred within ~5 years at some sites. δ18O sclerochronology suggests that individuals were ~1–2 years old. It is also notable that T. bacillum was found to be abundant at salinities as low as 10–15 psu, despite the general characterization of turritellines as fully marine. Comparison with data on modern T. communis in the western English Channel corroborates this pattern, as localized sites of high abundance also appear transient. These results have implications for the interpretation of TDAs in the fossil record: they may signify the cumulative result of short-lived, spatially restricted populations, possibly resulting from essentially stochastic larval settlement. This suggests that the palaeoenvironmental setting of fossil TDAs does not always control their occurrence on short temporal scales.

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“…1c]. Although the 122 census area is sheltered to some extent by the northwest-to north-lying headland and sand spit, yet 123 landward transport of some surface-dwelling macrofauna is caused by northerly wind-induced waves 124 during late autumn to early spring (Tamaki 1987;Tamaki and Takeuchi 2016). In the census area, 125 four parallel, cross-shore transects were placed, which were named Transects A, E, G, and J, with the 126 distance between adjacent transects being 60−120 m. On each transect, the stations for sampling 127 were placed every 10 m from the uppermost one at either the sandflat landward edge or 10 m 128 seaward of it to the lowest one at the MLWS; Stn X-Y designates Y m from the landward edge on 129…”

Section: Monitoring Density and Distribution Of Macrofauna And Substrmentioning

confidence: 99%

“…After 1979, the distribution range of the N. harmandi population expanded, having 89 occupied the entire sandflat by 1983 (Tamaki and Suzukawa 1991). This state has continued until 90 2015 (Tamaki and Takeuchi 2016). Both seasonal change around 1979 and some later years' 91 summertime distributions in the U. carda population would provide clues to clarifying its 92 dependency on N. harmandi.…”

Section: Introduction 44mentioning

confidence: 97%

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Facultative commensalism of a free-burrowing urothoid amphipod with a deep burrow-dwelling callianassid shrimp in intertidal sand

et al. 2018

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25Species of the free-burrowing amphipod genus, Urothoe, are common macrobenthos on open sandy 26 beaches. On intertidal sandflats, some species are associated with burrows or tubes of large infauna. 27How this link is formed under sheltered settings was examined. On an intertidal sandflat emersed for 28 300 m seaward in mid-western Kyushu, Japan, U. carda co-occurred with the deep burrow-dwelling 29 callianassid shrimp, Nihonotrypaea harmandi. Amphipods resided in the surface 5-cm sediment 30 outside shrimp burrows, as confirmed by sediment coring and burrow casting. In the summertime 31 during 1980 to 1981, the shrimp and amphipod populations were confined to the upper shore at 32 mean densities of 182 and 701 inds m -2 , respectively. In winter to spring, when the sediment surface 33 mixing was caused by seasonal wind-induced waves, only the amphipod extended distribution to the 34 lowest shore. By 1983, the shrimp increased mean density by 2.5 times and distribution range to the 35 lowest shore. In the summers of 1984, 2010, and 2015, the amphipod extended distribution to the 36 lowest shore, with small variations in population size. Three marked changes in substrate properties 37 were associated with the shrimp inhabitation: thicker oxidized layer (proxy for oxygenated layer) in 38 the sediment column; looser surface sediment, as evaluated with vane shear strength; and coarser 39 and better-sorted surface sediment with less mud content. At least the former two changes were 40 attributable to shrimp bioturbation, which could provide the amphipod with more permeable and 41 softer substrates, leading to the formation of facultative commensalism. 42

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Persistence, Extinction, and Recolonization of an Epibenthic Gastropod Population on an Intertidal Sandflat: 35-Y Contingent History of a Key Species of the Benthic Community in Metapopulation and Metacommunity Contexts

Cited by 10 publications

References 155 publications

Phytoplankton as a principal diet for callianassid shrimp larvae in coastal waters, estimated from laboratory rearing and stable isotope analysis

Phytoplankton as a principal diet for callianassid shrimp larvae in coastal waters, estimated from laboratory rearing and stable isotope analysis

Distribution and abundance of turritelline gastropods (Cerithioidea: Turritellidae) in Hong Kong and the English Channel: implications for a characteristic fossil assemblage

Facultative commensalism of a free-burrowing urothoid amphipod with a deep burrow-dwelling callianassid shrimp in intertidal sand

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