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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A practical approach to meeting national obligations for sustainable trade under CITES

Conservation Biology, Journal Year: 2024, Volume and Issue: 38(5)

Published: Sept. 9, 2024

Reconciling conservation goals with sustainable resource use requires adaptive management strategies. The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) regulates global trade for species listed Appendix II, partly by requiring member countries (parties) to ensure exports do not damage wild populations (called making positive "nondetriment findings" [NDFs]). Unfortunately, when parties find NDFs difficult, they often suspend legal trade, imposing economic costs driving underground. To make it easier examine the detrimental nature exports, we devised a spatial approach applied seahorses (Hippocampus spp.) Tamil Nadu, India, as an example. Our involves mapping answers 5 key questions distribution (QA), pressures (QB), measures (QC), implementation (QD), species' population status (QE). We gathered data from fisher interviews published literature. Seahorse abundance was greatest southern Palk Bay northern Gulf Mannar, primarily seagrasses coral reefs (QA). Fishing pressure highest Bay, bottom trawlers dragnetters operating shallow seahorse habitats near coastline (QB). Management including marine protected area (MPA), trawl exclusion zone, closed season were theoretically place but their poor (QD). Fishers reported catches 85% covered MPA zone; responsible most violations. Seahorses also captured Sri Lankan waters, where trawling is banned. Fisher reports indicated declining reduced body sizes (QE), highlighting unsustainable exploitation. results highlight need better existing before NDF can be made suggest mitigation beyond bans. Such pragmatic analyses help regulate at levels, supporting CITES its vast range species.

Language: Английский

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Seahorse ecology and conservation in Brazil: a systematic review

Ethnobiology and Conservation, Journal Year: 2025, Volume and Issue: 14

Published: Feb. 19, 2025

Seahorses are unique, charismatic, and threatened fish that inhabit some of the most vulnerable marine environments. In Brazil, three seahorse species recognized as with extinction; however, knowledge their ecology conservation is unsystematized patchy. Using PRISMA protocol, we performed a systematic review existing literature on Brazilian seahorses to assess current distribution, life history aspects, threats, efforts, while also identifying research gaps proposing future priorities. By accessing 289 studies, found significant population ecology, habitat preferences, particularly for Hippocampus patagonicus H. aff. erectus, including critical taxonomic uncertainties latter. Despite being studied in country, reidi lacks updated large-scale studies. We evidenced major threats Brazil: fisheries (both targeted incidental), trade, destruction. Furthermore, highlight emerging anthropogenic disturbances, such tourism-related activities, potential stressors populations. Weaknesses framework, regarding regulation monitoring these require attention. Our findings provide important insights direct management actions Brazil. emphasize need comprehensive studies address uncertainties, clarify distribution patterns, understand waters. This especially crucial populations facing human-induced pressures. Given complex multi-stakeholder nature multifaceted approach essential ensure long-term protection

Language: Английский

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Analysis of 20 years of turtle exports from the US reveals mixed effects of CITES and a need for better monitoring

Conservation Science and Practice, Journal Year: 2024, Volume and Issue: 6(4)

Published: March 5, 2024

Abstract The Convention on International Trade of Endangered Species (CITES) is the primary mechanism for controlling international wildlife trade and preventing overexploitation, but measuring its efficacy difficult, which complicates management efforts. We examined effects CITES listings freshwater turtles from US compared spatiotemporal trends dynamics across 16 genera using 20 years export data, triangulated with mixed qualitative data. For each CITES‐listed genus, we analyzed average changes, immediate changes in volumes spatial diversity trade. Boom‐and‐bust exports different taxa were driven by several factors, including listings, had both Appendix II III species while networks consistently declined non‐CITES listed genera. These results point to differences demand species' availability captive breeders, farms, or wild harvest are important consider future listing decisions. However, a lack reliable data source limited our ability understand these drivers as well overexploitation.

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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Population structure of the seahorse Hippocampus reidi (Syngnathiformes: Syngnathidae) in a Brazilian semi-arid estuary

Neotropical Ichthyology, Journal Year: 2023, Volume and Issue: 21(4)

Published: Jan. 1, 2023

Abstract The longsnout seahorse (Hippocampus reidi) is a vulnerable species found along most of the Brazilian coastline, such as semi-arid estuaries with strong rainfall seasonality, hypersalinity, and low depth. To evaluate population structure H. reidi over time, we monitored in Pacoti estuary (Brazil) for one year, based on 248 registered specimens. Salinity, water transparency, sex, pregnancy, body height, holdfast use were registered. Mixed linear models revealed that sampling month, salinity, transparency had no influence density lower zone estuary. Pregnant individuals more frequent dry season at higher salinities. Mean height (12.7 cm) increased season. Bright colors predominant. seahorses employed nine types holdfasts, often mangrove roots, to reproduce throughout peaking Salinity did not impact density. In estuaries, strongly associated vegetation, used holdfast. Therefore, conservation populations depends local forests.

Language: Английский

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Discovery and identification of interspecies peptide biomarkers in the seahorse species using liquid chromatography tandem mass spectrometry and chemometrics

Journal of Pharmaceutical and Biomedical Analysis, Journal Year: 2024, Volume and Issue: 240, P. 115967 - 115967

Published: Jan. 8, 2024

Language: Английский

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Species diversity, ecological characteristics and conservation measures of seahorses (<i>Hippocampus</i>) in China’s waters

Biodiversity Science, Journal Year: 2024, Volume and Issue: 32(1), P. 23282 - 23282

Published: Jan. 1, 2024

Background & Aims: Seahorses (Hippocampus spp.) are well-known fishes from the family Syngnathidae, mainly due to their unique external morphology and reproductive strategy of male pregnancy.All Hippocampus species, listed in CITES Appendix II 2002, under trade regulations internationally.All species (wild populations only) inhabiting China's waters were as Category National Key Protected Wild Animals 2021.Through literature review, we (i) updated list seahorses occurring waters, (ii) summarized theirdistribution regions, habitat breeding features, (iii) presented threatened categories threats.Our goal is inform effective conservation measures for seahorse wild China.Review findings: In this paper, reviewed diversity, distributions, uses, categories, threat factors various reference sources, including online databases (Fishbase, The Fish Database Taiwan, GBIF, WoRMS, IUCN), peer-reviewed papers, reports, theses, well informative Chinese ichthyographies.A total 16 recorded 5 pygmy that no more than 30 mm body height.Among these, Japanese (H.mohnikei) distributed most widely, across all four seas.Crowned (H.coronatus) only found Bo Hai, while Barbour's (H.barbouri), Beibu Bay (H.casscsio, a new 2016), Tiger tail (H.comes) South China Sea.Six coastal Taiwan Province.Southern China, Hainan, Guangdong, Fujian, Guangxi, has high diversity.The uses very diverse, coral rocky reefs, seagrass seaweed beds, muddy sandy bottoms, gravels, mangrove meadows.Some have special requirements habitats.According IUCN, 8 Vulnerable (VU), 2 Least Concern (LC), Data Deficient (DD), 1 was Not Evaluated (NE).The main threats bycatch destruction.Recommendations: taxonomic group with vulnerability, propose five recommendations urgent conservations China.First, significance flagship marine biodiversity should be realized need use them raise marine-conservation awareness general public.Establishing protected areas habitats, applying other area-based (OECMs) might also taken into account.Second, it known non-selective fishing gears such bottom trawling volume, dredge net operations can damage beds where inhabit.Therefore, any solution reducing bycatch, increasing survival rates after releasing, protecting habitats innovating welcome.Third, identifying key different important establishing fisheries spatial management.Currently, data limited.Some synthesized study require national-wide surveys validate before planning reserves OECMs China.Fourth, regulation enforcement strengthened, management utilization regulated properly.To end, techniques distinguishing farmed established soon possible expansion aquaculture.

Language: Английский

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Do longsnout seahorses Hippocampus reidi (Syngnathiformes: Syngnathidae) have a holdfast preference?

Neotropical Ichthyology, Journal Year: 2024, Volume and Issue: 22(2)

Published: Jan. 1, 2024

Abstract Coastal systems encompass a range of ecotones that are important for fish species, providing diverse micro-habitats and grounds foraging, protection from predation, reproduction areas recruitment. However, most these face major threats human activities. Considering the increasing levels disturbance in coastal ecosystems, understanding fish-habitat associations may provide insights into patterns species occurrence distribution human-impacted systems, which can support development effective conservation management measures. In this context, we investigated relationship between seahorses (Hippocampus reidi) both habitat complexity different holdfast to determine possible variation locations among seasons. Data were obtained rocky reefs Guanabara (Urca Beach) Sepetiba (Duas Irmãs Island) bays, southeastern Brazil. Seahorses counted, being used by each individual was recorded identified or assigned morphofunctional group. The beaches differed composition groups, yet sharing some groups. more frequently associated with branching holdfasts at sites, also foliaceous massive. Association algae particularly found Urca, while coral Carijoa riisei Duas Island.

Language: Английский

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Quantifying non-target seahorse fisheries and domestic traditional medicine-based trade in Malaysia

Fisheries Research, Journal Year: 2024, Volume and Issue: 281, P. 107188 - 107188

Published: Sept. 28, 2024

Language: Английский

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