Reproduction and Early Life Ecology of Abalone Haliotis diversicolor in Sagami Bay, Japan

Onitsuka, Toshihiro; Kawamura, Tomohiko; Horii, Toyomitsu

doi:10.6090/jarq.44.375

Cited by 5 publications

(2 citation statements)

References 29 publications

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“…Other species show endogenously controlled spawning related with the cycles of the moon, light, tides and/or typhoons (Heslinga and Hillmann, 1981;Bell, 1992;Counihan et al, 2001;Onitsuka et al, 2007Onitsuka et al, , 2010. In C. pica, spawning lunar periodicity has been suggested (Bell, 1992), but it has not been confirmed.…”

Section: Introductionmentioning

confidence: 99%

Spawning and early development of the West Indian top shell,Cittarium pica(Linnaeus, 1758), under ex-situ conditions

Velasco

Barros

2017

Aquat. Living Resour.

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The West Indian top shell, Cittarium pica, is an endangered vetigastropod from the rocky intertidal Caribbean. In order to provide a basis for its hatchery-production as a conservation tool, spawning and early development were evaluated under ex-situ conditions. Spawning response was monitored during different lunar phases with application of physical and chemical stimulisuch as changes in temperature salinity and desiccation, exposure to UV irradiated water and chemical stimulation with Tris and hydrogen peroxide. Spawning response was obtained in association with daytime, new moon, flooding and high tides. Use of physical and chemical stimuli did not elicit any spawning response. Adults conditioned in the hatchery for one year did not spawn. Spawning of males and females was simultaneous and frequently intermittent. On average, percentage and size of spawn was higher for males than females. Fecundity was positively correlated with total female wet weight, with an average value of 149 000 oocytes per female. Embryonic and larval development was reported in detail. Results suggest that there is a high potential to use the controlled ex-situ reproduction of C. pica as a conservation tool, since gamete and larvae were repeatedly obtained from wild adults collected days before new moon following a circadian endogenous pattern applying simple protocols of spawning, fertilization and incubation.

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Section: Introductionmentioning

confidence: 99%

Spawning and early development of the West Indian top shell,Cittarium pica(Linnaeus, 1758), under ex-situ conditions

Velasco

Barros

2017

Aquat. Living Resour.

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“…A variety of coastal gastropods (e.g., abalone, limpets, and trochid snails) spawn during periods of large surface waves usually associated with downwelling conditions (e.g., onshore transport of ocean surface waters) as indicated by higher sea surface temperatures and lower salinities (Sasaki and Sheperd ; Shanks ; Onitsuka et al ). Large waves may export embryos rapidly out of the surf zone decreasing their exposure to benthic predators and strong turbulence (Shanks ; Gyory and Pineda ).…”

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confidence: 99%

Marine heat waves, climate change, and failed spawning by coastal invertebrates

Shanks

Rasmuson

Valley

et al. 2019

Limnology & Oceanography

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To investigate the timing and intensity of winter spawning by coastal invertebrates, we enumerated embryos in plankton samples collected in daily time series from January to March of 2014 (79 d), 2015 (73 d), and 2016 (74 d). Samples were collected near the mouth of the Coos Bay estuary in Oregon. We enumerated several hundred different morphologically distinct types of embryos and larvae representing at least five phyla. Forty‐three embryo types were abundant enough (abundance > 500 over the time series) to enable statistical analysis. Twenty of these types were identified using genetic barcoding of which there were four nemerteans, four gastropods, four chitons, five polychaetes, and two echinoderms. In winter 2014, hydrographic conditions were similar to average historical values. Conditions in 2015 and 2016 were characterized by marine heat waves (MHWs). In 2015, the “warm blob”—anomalously warm water in the Northeastern Pacific—affected conditions and in 2016, there was a strong El Niño. In 2015 and 2016, winter spawning intensity was orders of magnitude lower than in 2014 and many taxa failed to spawn (11 and 24 in 2015 and 2016, respectively); spawning appears to have been adversely impacted by the MHWs. The MHW of 2015 has been attributed to anthropogenic global climate change while the 2016 El Niño may have been strengthened by climate change. The frequency, intensity, and duration of MHW are projected to increase dramatically with global warming, which may adversely affect reproduction and recruitment by numerous marine taxa.

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Short-term fluctuations in salinity and turbidity: effects on the embryonic stage of two abalone species, Haliotis discus discus and Haliotis gigantea

Phan

Manuel

Tsutsui

et al. 2022

Journal of Experimental Marine Biology and Ecology

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Reproduction and Early Life Ecology of Abalone Haliotis diversicolor in Sagami Bay, Japan

Cited by 5 publications

References 29 publications

Spawning and early development of the West Indian top shell,Cittarium pica(Linnaeus, 1758), under ex-situ conditions

Spawning and early development of the West Indian top shell,Cittarium pica(Linnaeus, 1758), under ex-situ conditions

Marine heat waves, climate change, and failed spawning by coastal invertebrates

Short-term fluctuations in salinity and turbidity: effects on the embryonic stage of two abalone species, Haliotis discus discus and Haliotis gigantea

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