Life history and instream distribution of the endangered estuarine goby <i>Acanthogobius insularis</i> from Okinawa-jima Island, Japan

Kunishima, Taiga; Iwamoto, Risa; Iida, Makoto; Tachihara, Katsunori

doi:10.1017/s0025315417002053

Cited by 4 publications

(1 citation statement)

References 24 publications

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“…Gobies are prey for a variety of seabirds and other high-trophic-level predators in the water; therefore, they play a significant role in the cycling of material and energy movement throughout ecosystems (Trayler et al 1989;Humphries and Potter 1993;Taylor et al 2006;Han 2013;Zhang et al 2014). A few gobies have attracted great attention because of their ecological sensitivity and invasiveness (Jude et al 1992;Kunishima et al 2019;Qin et al 2020). In addition, the genetic diversity, morphology, and reproductive strategy of gobies are hot topics in the field of ecological study (Patzner et al 2011;Milá et al 2017).…”

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Effects of Estuarine Environmental Heterogeneity on the Habitat of Gobiidea Species Larvae

Zhai

et al. 2023

Mar Coast Fish

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In aquatic ecosystems around the world, gobies comprise one of the most diverse groups of fishes in estuaries. The Yangtze River estuary, the biggest estuary in the western Pacific, is a major habitat for larval gobies, with the peak spawning and breeding season occurring during late spring and summer. To investigate the adaptation mechanism of larval gobies to environmental factors, three models (a global generalized linear model, a generalized additive model, and a geographically weighted Poisson regression) were used to simulate and forecast the major habitat distributions of larval gobies based on the survey data from 2018 to 2020. Six species of gobies were studied: Rhinogobius giurinu, Odontamblyopus rubicundus, Tridentiger barbatus, Parachaeturichthys polynema, Tridentiger trigonocephalus, and Trypauchen vagina. The habitats for brackish species T. barbatus were mainly in freshwater (where, using the practical salinity scale, salinity is 0-1) of the south branch, whereas the marine species P. polynema was mainly caught in oligohaline waters (where salinity is 1-5) of the north branch. The other euryhaline species were near the exit of the north branch or dispersed throughout the surveyed region. Year, season, salinity, and sample location had significant effects (P < 0.001) on determining the habitat distributions of larval gobies. The geographically weighted Poisson regression identified that the temperature, depth, distance from the coast, and chlorophyll a had a significant effect (P < 0.001) on the local distribution of habitats. This work supplements information about the distribution of major habitats and their interactions with the environment for the ecologically important species of goby in the Yangtze estuary during the larval stage, and the conclusions provide a basis for the management of aquatic ecosystems and biological habitats.

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confidence: 99%

Effects of Estuarine Environmental Heterogeneity on the Habitat of Gobiidea Species Larvae

Zhai

et al. 2023

Mar Coast Fish

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Coastal Fishes in Tidal Flats and Salt Marshes

Koyama

2022

Fish Diversity of Japan

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What ecological role do soft-substrate tide pools play for fishes? Difference in community structures between estuarine and coastal tidal flats in subtropical Japan

Kunishima

Tachihara

2020

Mar. Freshwater Res.

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Soft-substrate tide pools are considered important habitats for fishes from an ecological perspective. However, the ecological roles of such pools and use patterns by fish remain unclear, especially regarding differences between estuarine and coastal tidal flats. In this study, quantitative sampling using the quadrat method was performed in the estuarine and coastal tidal flats on Okinawa-jima Island of subtropical Japan during four seasons. Ecological roles of soft-substrate tide pools were classified as follows: (1) permanent habitat for residents; (2) nursery ground for transients; and (3) waiting area until high tide for accidental species. Within these classifications, the ecological role and value of tide pools for transient fishes varied between the tidal flat types. The habitat value of tide pools is higher for residents than for transient species because the habitat is not replaceable for residents because of their specific ability to survive there. By contrast, transient and accidental species use the tide pools as temporary habitats; however, their high diversity affects the variation in community structure on Okinawa-jima Island. Our results suggest that we should consider not only species diversity, but also habitat use patterns of individual species, together with their life history, when evaluating habitat value with regard to conservation and management of each tidal flat.

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Life history and instream distribution of the endangered estuarine goby Acanthogobius insularis from Okinawa-jima Island, Japan

Cited by 4 publications

References 24 publications

Effects of Estuarine Environmental Heterogeneity on the Habitat of Gobiidea Species Larvae

Effects of Estuarine Environmental Heterogeneity on the Habitat of Gobiidea Species Larvae

Coastal Fishes in Tidal Flats and Salt Marshes

What ecological role do soft-substrate tide pools play for fishes? Difference in community structures between estuarine and coastal tidal flats in subtropical Japan

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