Recent Progress of Bio-inspired Camouflage Materials: From Visible to Infrared Range

Chemical Research in Chinese Universities, Journal Year: 2022, Volume and Issue: 39(1), P. 19 - 29

Published: July 27, 2022

Language: Английский

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The role of aquaculture in the international trade of giant clams (Tridacninae) for the aquarium industry (2001–2019)

Aquaculture, Journal Year: 2024, Volume and Issue: 583, P. 740563 - 740563

Published: Jan. 11, 2024

An overview over the international trade in live giant clams (Bivalvia: Tridacninae) from 2001 to 2019 was made based on worldwide import data CITES Trade Database. A distinction between records of wild-caught and maricultured ones. general decline wild observed. Since these bivalves naturally attached rocky substrate coral reefs their forceful removal is harmful surrounding corals, this trend helped prevent damage natural environment. Possible reasons behind are lower population numbers, restrictions, a decrease demand. Tridacna crocea decreased, whereas that T. maxima increased, taking former's position as most popular species. From 2015 onwards, 50% source up by aquaculture, 2019. Aquaculture can be profitable, but there still obstacles overcome order ensure stable production numbers long-term profit. With more research support governments, aquaculture help take pressure off populations already suffering exploitation for sea-food market souvenir industry, also habitat degradation due climate change other anthropogenic disturbances.

Language: Английский

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Proposal and Validation of a Body Condition Score System for the Evaluation of Energy Reserves in the Long‐Snouted Seahorse Hippocampus reidi (Ginsburg, 1933)

Zoo Biology, Journal Year: 2025, Volume and Issue: unknown

Published: April 29, 2025

ABSTRACT Given the morphological conformation of seahorses, there are several difficulties associated with evaluation body reserves and physical condition. This study proposes development validation a condition scoring system (BCS) applicable to Hippocampus reidi . comprises two phases: first, BCS methodology, followed by its application group subjected an experimental diet, which serves validate our findings. Weight gain biometric parameters 31 seahorses were weekly monitored for period 90–150 days. Additionally, histological analysis organs digestive reproductive tract was carried out characterize system, as well skin lipid profile measure mobilization. It is proposed that animals should be evaluated abdominal muscle coverage, thoracic narrowing, contrast between dorsal region coverage rings. We found significant differences size accumulation fat in liver degree gonads evaluated. Better energy potential therefore expected higher BCS. Our methodology presents itself alternative high practicality, simplicity low cost, being innovative tool Syngnathids.

Language: Английский

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CITES makes a measurable difference to the trade in live marine fishes: The pioneering case of seahorses

Biological Conservation, Journal Year: 2022, Volume and Issue: 272, P. 109653 - 109653

Published: July 20, 2022

Language: Английский

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Microbial profiles and immune responses in seahorse gut and brood pouch under chronic exposure to environmental antibiotics

Ecotoxicology and Environmental Safety, Journal Year: 2023, Volume and Issue: 253, P. 114711 - 114711

Published: March 1, 2023

Ocean antibiotics pose substantial risks to the adaptation and lifespan of marine organisms. Seahorses are unique owing occurrence brood pouches, male pregnancy, loss gut-associated lymphatic tissues spleen, which lead increased sensitivity environmental changes. This study evaluated changes in microbial diversity immune responses within gut pouch lined seahorse Hippocampus erectus under chronic exposure levels triclosan (TCS) sulfamethoxazole (SMX), common coastal regions. The results showed that abundance seahorses were significantly changed following treatment, with expression core genes involved immunity, metabolism, circadian rhythm processes evidently regulated. Notably, potential pathogens pouches was considerably upon treatment SMX. Transcriptome analysis revealed toll-like receptors, c-type lectins, inflammatory cytokine upregulated. some essential related pregnancy varied after antibiotic implying effects on reproduction. provides insights into physiological animals resulting from human activity.

Language: Английский

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Assessing the state of seahorse research through scientometric analysis: an update

Reviews in Fish Biology and Fisheries, Journal Year: 2023, Volume and Issue: 33(4), P. 1237 - 1262

Published: July 25, 2023

Language: Английский

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The United States dried seahorse trade: A comparison of traditional Chinese medicine and ecommerce-curio markets using molecular identification

PLoS ONE, Journal Year: 2023, Volume and Issue: 18(10), P. e0291874 - e0291874

Published: Oct. 3, 2023

Tens of millions dried seahorses (genus Hippocampus) are traded annually, and the pressure from this trade along with their life history traits (involved parental care small migration distances home ranges) has led to near global population declines. This other forms overexploitation have all seahorse species being listed in Appendix II under Convention on International Trade Endangered Species Wild Fauna Flora (CITES). The signatory nations CITES recommended a 10-cm size limit ensure harvested individuals reached reproductive maturity, thus had chance produce offspring, maintain more sustainable fishery. We assessed adherence recommendations using DNA barcoding measurements compare two prominent U.S. markets: (1) traditional Chinese medicine (TCM), (2) non-medicinal ecommerce coastal curio (ECC). also estimated import abundance records. Of nine identified among samples (n = 532), eight were found TCM 168); composed mostly (75%) Indo-Pacific Hippocampus trimaculatus, spinosissimus, Latin American ingens. In contrast, ECC 344) included 5 species, primarily juvenile kuda (51.5%) western Atlantic zosterae (40.7). majority (85.7%) met recommendation, contrast 4.8% samples. These results suggest non-size discriminatory bycatch is most likely source imported specimens. addition, records indicate that approximately 602,275 specimens into 2004-2020, but exact composition remains unknown as many imports list one or spp. confiscated shipments due difficulties morphological identification large numbers per shipment. Molecular was used identify shipment containing undesignated similar TCM, H. trimaculatus spinosissimus abundant. By combining barcoding, comparisons, database records, these provide an important glimpse primary end-markets, may further inform conservation status several species.

Language: Английский

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Light-specific wavelengths differentially affect the exploration rate, opercular beat, skin color change, opsin transcripts, and the oxi-redox system of the longsnout seahorse Hippocampus reidi

Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology, Journal Year: 2023, Volume and Issue: 288, P. 111551 - 111551

Published: Nov. 14, 2023

Language: Английский

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The Trojan seahorse: citizen science pictures of a seahorse harbour insights into the distribution and behaviour of a long-overlooked polychaete worm

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 291(2034)

Published: Nov. 1, 2024

Symbiotic marine invertebrates can be small, hidden or difficult to find, hampering the understanding of their distribution and ecological roles. Haplosyllis anthogorgicola is a polychaete inhabiting gorgonian Anthogorgia bocki , where it lives in high densities within host’s coenenchyme occupies burrows formed by host tissue near coral polyps. This study provides first records H. since its description 1956, from colonies Anthogorgiidae southern Japan. We observed that gorgonians were also inhabited pygmy seahorse Hippocampus bargibanti popular species observe photograph among SCUBA divers. Therefore, we examined photographic available on citizen science website iNaturalist screened for structures associated with infestation gather information this elusive species. Our analyses confirmed and/or similar are widespread central Indo-Pacific region. In addition, some behaviours, raising questions about nature relationships between hosts seahorse. demonstrates contribute our knowledge not only behaviour well known charismatic but inadvertently overlooked neglected taxa.

Language: Английский

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Bioaccumulation of contaminants in wild seahorses collected from coastal China

Frontiers in Marine Science, Journal Year: 2022, Volume and Issue: 9

Published: Oct. 17, 2022

Eighty-four wild seahorses, including three of China’s dominant species, were collected from seven coastal provinces to evaluate their common contaminant contents. Heavy metals (including Cu, Pb, Cd, Cr, and Hg), Benzo(a)pyrene (B[a]P), microplastics detected in the seahorses. The results indicate that considerable contamination variations are present seahorses different regions species. Elevated concentrations Cu compared other heavy metals, observed most sampled locations. In addition, B[a]P far greater Hippocampus mohnikei H.trimaculatus with H.kelloggi ( P < 0.05). Substantial changes microplastic also locations, significant differences between species Further, a correlation analysis obtained strong correlations among four (Cu, Cr), except Hg. A was identified 0.01), suggesting potential synergistic effects these two contaminants. brief, this study indicates seahorse populations experiencing environmental pollution.

Language: Английский

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