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72
Citations
Citations since 2017
Publications
Publications (21)
The cost of reproduction is the core driver of life history evolution in animals. This paper demonstrates that the cumulative distance moved and the duration of movement of sexually immature abalones, Haliotis discus hannai, kept in various male and female groups, were significantly higher than those of sexually mature individuals, except when kept...
Pacific abalone (Haliotis discus hannai) is a typical nocturnal organism. To examine the circadian expression pattern of orexin receptor type 2 (OX2R) and its potential effect on the feeding behavior of abalone, the coding region sequence of OX2R that is 1215 bp in length and encodes 404 amino acids was first cloned using the rapid amplification of...
The circadian rhythm is one of the most crucial and universal biological rhythms in living organisms. As a typical nocturnal creature, the Pacific abalone (Haliotis discus hannai) exhibits rhythmic behaviors in terms of passively selecting whether to avoid predators or to forage, and active adaptation to light cycle changes is regulated by the biol...
In natural environments, the spectral composition of incident light is often subject to drastic changes due to the abundance of suspended particles, floating animals, and plants in coastal waters. In this study, after four months of culturing under blue light (NB), orange light (NY), dark environment (ND), and natural light (NN), the shell length a...
The circadian rhythm is one of the most general and important rhythms in biological organisms. In this study, continuous 24-h video recordings showed that the cumulative movement distance and duration of the abalone, Haliotis discus hannai, reached their maximum values between 20:00–00:00, but both were significantly lower between 08:00–12:00 than...
In natural aquatic environments, the spectral composition of incident light often changes abruptly in response to the abundance of suspended particulate matter and zooplankton and plankton in nearshore waters. Understanding these responses is important for the aquaculture of various species, including the abalone Haliotis discus hannai. The current...
The hybrid abalone Haliotis discus hannai ♀ × H. fulgens ♂ (DF) shows obvious growth advantages compared with one of its parents, H. discus hannai (DD); however, the reasons for these advantages are not fully understood. Using a video surveillance system, the current study showed that the feeding behaviors of DD and DF exhibited an obvious circadia...
The light environments of natural water sources have specific characteristics. For the majority of aquatic organisms, vision is crucial for predation, hiding from predators, communicating information, and reproduction. Electroretinography (ERG) is a diagnostic method used for assessing visual function. An electroretinogram records the comprehensive...
For the abalone Haliotis discus hannai, attachment and metamorphosis are crucial stages in the transition from planktonic to benthic life. Increasing the larval metamorphosis rate by artificially controlling the external environment and simulating natural seawater flow is vital to enhance the hatchery efficiency of H. discus hannai. Thus, in the cu...
Settlement and metamorphosis is the key stage during which Haliotis discus hannai larvae change from planktonic to benthic life. Larvae tend to be highly sensitive to changes in the external environment, which can result in increased mortality. In the aquaculture industry, increasing the metamorphosis rate of larvae is considered to be a critical f...
Abalone ( Haliotis spp.) are typical nocturnal creatures but Haliotis discus hannai is bold and active in the nighttime whereas H. gigantea tends to be timid and inactive. In this study, we quantified and compared differences in movement, feeding, and digestive physiology between H. discus hannai and H. gigantea as well as the potential molecular m...
Primitive cnidarians are crucial for elucidating the early evolution of metazoan body plans and life histories in the late Neoproterozoic and Palaeozoic. The highest complexity of both evolutionary aspects within cnidarians is found in extant hydrozoans. Many colonial hydrozoans coated with chitinous exoskeletons have the potential to form fossils;...
Contents
Section 1. Materials and methods
Section 2. Discussion: convergent morphologies and systematic affinities
Figure S1. Diagrammatic drawings of morphological diagnoses in Sertulariida (Hydrozoa)
Figure S2. Fossil type material investigated
Figure S3. The hydrocladium origin pattern of Palaeodiphasia simplex
Figure S4. Energy dispersive spec...
Macroplastic debris recorded in the Mariana Trench and accumulated on some deep-sea canyons worldwide has aroused great public concerns. Large plastic debris dumps found in canyons of the Xisha Trough, South China Sea have become hot spots for deep-sea pollution, with 1 order of magnitude higher abundance than in other investigated canyons. Here we...
Marine plastic debris is a main environmental issue that even threatens the polar and deep-sea floors hosting exceptional levels of invertebrate endemism and diversity.
Biological systematics provides taxonomic information and expertise for biogeography and biological invasion research and management. However, the systematic classification of most taxa, including some alien and invasive species, relies only on morphology. This applies for example to Sertularella tongensis Stechow, 1919, an alien hydrozoan recently...
Molecular phylogenetics provides objective references for zoological systematics which sometimes are inconsistent with morphological data. This particularly counts for some primitive phyla such as Cnidaria. The marine hydrozoan Symplectoscyphus turgidus (Sertularellidae) is a recent questionable case reported to occupy an unexpected phylogenetic po...
Projects
Project (1)
NSFC Project (41876180): 2019-01-01~2022-12-31
Project abstract:
Marine hydrozoans comprise an important marine benthic group, dwelling as colonies attached to hard substrata throughout the oceans of the world. Some species of the order Macrocolonia Leclere et al. 2009 (Hydrozoa: Leptothecata) form large areas of “marine seagrass beds” on the seafloor, providing a habitat for other marine organisms; or occur attached to artificial structures such as wharfs, fishing cages and ship bottoms, comprising an important fouling biological member. In the past sixty years, lots of Chinese pioneer scientists helped to accumulate a large number of hydroid samples through marine surveys in Chinese Seas. However, hydroid taxonomy has been scarcely dealt with - except for the project members, and there is a lack of systematic knowledge. For the first time in China, this study intends to investigate the systematics (taxonomy) of the ecologically important hydrozoan group, the order Macrocolonia. It is aimed to collect about 2,000 new samples in the representative areas along the Chinese coasts and offshores, and to make full use of the 2000 existing samples, as well as the unpublished data of 1700 samples of the project member (Song 2016, PhD thesis). An integrative approach combining type material, morphological and molecular analyses will be applied. The research results are expected to finally contribute to the first hydroid systematics monograph in Chinese Seas, to represent basic data on biodiversity knowledge, resource management and conservation.
