Marine biodiversity discovery: the metrics of new species descriptions

Frontiers in Marine Science, Journal Year: 2023, Volume and Issue: 10

Published: June 27, 2023

Based on the World Register of Marine Species (WoRMS), there are currently c. 242,000 known valid marine species living in world's oceans and biota continue to be discovered named steadily at a current average 2,332 new per year. The “average” newly described is benthic crustacean, annelid, or mollusc between 2 10 mm size, tropics depths 0–60 m, represented description by 7–19 specimens. It after shelf life 13.5 years an article with two three authors journal IF <1, published academic institution society small commercial publisher. highly likely that not accompanied molecular data its do work region world where comes from. At pace discovery characterization, it will take several hundred describe remaining 1–2 million unknown species. With increased facilitation access literature, taxonomy increasingly rely retired professionals citizen scientists. barriers descriptions part technological (access habitats difficult sample) educational (training generate use barcodes), but mostly institutional (funding taxonomic work) regulatory (restrictions imposed benefit sharing legislation).

Language: Английский

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On-demand quantum light sources for underwater communications

Materials for Quantum Technology, Journal Year: 2024, Volume and Issue: 4(2), P. 025402 - 025402

Published: May 2, 2024

Abstract Quantum communication has been at the forefront of modern research for decades, however it is severely hampered in underwater applications, where properties water absorb nearly all useful optical wavelengths and prevent them from propagating more than, most cases, a few metres. This reports on-demand quantum light sources, suitable communication. The single photon emitters, which can be engineered using an electron beam, are based on impurities hexagonal boron nitride. They have zero phonon line ∼436 nm, near minimum value absorption shown to suffer negligible transmission purity loss when travelling through channels. These emitters also possess exceptional compared other utilised completely secure key distribution experiment with rates kbits s −1 .

Language: Английский

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A study of taxonomic and molecular-genetic characteristics of the western Chukchi Sea fish fauna

Polar Biology, Journal Year: 2025, Volume and Issue: 48(1)

Published: Jan. 13, 2025

Language: Английский

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Cryptic diversification, phenotypic plasticity, and host specialization in a sponge-dwelling goby

Coral Reefs, Journal Year: 2024, Volume and Issue: 43(2), P. 391 - 403

Published: Feb. 22, 2024

Language: Английский

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A decade of submersible observations revealed temporal trends in elasmobranchs in a remote island of the Eastern Tropical Pacific Ocean

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: June 14, 2024

Abstract No-take marine protected areas (MPAs) can mitigate the effects of overfishing, climate change and habitat degradation, which are leading causes an unprecedented global biodiversity crisis. However, assessing effectiveness MPAs, especially in remote oceanic islands, be logistically challenging often restricted to relatively shallow accessible environments. Here, we used a long-term dataset (2010–2019) collected by DeepSee submersible Undersea Hunter Group that operates Isla del Coco National Park, Costa Rica, (1) determine frequency occurrence elasmobranch species at two depth intervals (50–100 m; 300–400 m), (2) investigate temporal trends common between 2010 2019, as well potential drivers observed changes. Overall, 17 species, 15 were recorded on dives m) 11 deep (300–400 m). We found decreasing trend probability Carcharhinus falciformis over time (2010–2019), while other (e.g. Taeniurops meyeni , Sphyrna lewini galapagensis Triaenodon obesus Galeocerdo cuvier ) showed increasing trend. Our study suggests some like S. may shifting their distributions towards deeper waters response ocean warming but also sensitive low oxygen levels greater depths. These findings highlight need for regional 3D environmental information deepwater surveys understand extent shark ray population declines ETP regions, most fishery-independent from data-poor countries have been limited waters.

Language: Английский

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An updated, illustrated inventory of the marine fishes of the US Virgin Islands

ZooKeys, Journal Year: 2022, Volume and Issue: 1103, P. 79 - 122

Published: June 1, 2022

The US Virgin Islands (USVI) include St. John and Thomas on the Puerto Rican Platform (PRP) Croix, isolated by 2000 m deep water 45 km south of that platform. Previous inventories marine fishes these islands a comprehensive 2014 checklist Croix list PRP produced in 2000. latter noted locations many records plateau’s fishes, allowing construction combined inventory for Thomas. Those two are treated here as single faunal unit because they only 3.5 apart shared shallow shelf with various islets reefs between. Here we provide updated information those USVI (St. John-Thomas) fish faunas. additions to John-Thomas presented based combination from sources indicated above, more recent publications dealing faunas, review location online biogeographic data, voucher photographs taken field authors this paper other citizen scientists. This assessment increased known fauna 7.5% 585 species. 39.9% 401 species 561 inclusion sources. On-site mtDNA (COI) barcodes available approximately one-third fauna, but one collected at Croix. A set underwater 372 (34 them representing sole record species) 11 shallow-water added is included. These represent occurrence vouchers also intended facilitate future work builds present compendium.

Language: Английский

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Two new species of Varicus from Caribbean deep reefs, with comments on the related genus Pinnichthys (Teleostei, Gobiidae, Gobiosomatini, Nes subgroup)

ZooKeys, Journal Year: 2023, Volume and Issue: 1180, P. 159 - 180

Published: Sept. 20, 2023

Tropical deep reefs (~40–300 m) are diverse ecosystems that serve as habitats for communities of reef-associated fishes. Deep-reef fish taxonomically and ecologically distinct from those on shallow reefs, but like they home to a species-rich assemblage small, cryptobenthic reef fishes, including many species the family Gobiidae (gobies). Here we describe two new deep-reef gobies, Varicus prometheus sp. nov. V. roatanensis , were collected using submersible Idabel rariphotic off island Roatan (Honduras) in Caribbean. The 11 th 12 genus their placement is supported by morphological data molecular phylogenetic analyses. Additionally, also specimens closely-related Pinnichthys aimoriensis during collections islands Bonaire St. Eustatius (Netherland Antilles) included them this study expand current description document its range extension Brazil into Collectively, records P. add our growing knowledge diversity

Language: Английский

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Vertical structure of Caribbean deep-reef fishes from the altiphotic to deep-sea boundary

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Aug. 22, 2024

Abstract While recent technical breakthroughs have enabled advances in the description of reefs down to 150 m, structure and depth zonation deep-reef communities below m remains largely unknown. Here, we present results from over 10 years fish surveys using human-occupied submersibles at four locations across Caribbean Sea, constituting one only continuous reef-fish 480 (1 site) 40 300 (3 sites). We identify vertically stratified between bordered by an altiphotic (0–10 m) a deep-sea (300–480 community. found strong faunal break around that separates mesophotic rariphotic zones secondary breaks ~ 70 90 180 200 subdividing these into upper lower communities. From Roatán, single community dominated families, indicating boundary realm occurs m. No differences were ranging 20 60 suggesting fishes form ecological continuum. some variability was observed sites, overall key species characterizing consistent. Most specialists restricted zone, but many shallow-reef extended depths. Depth segregation among genus ten genera likely constitutes mechanisms driving distinctiveness thereby diversity

Language: Английский

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Analysis of bulk stable isotopes and trophic positions of invasive lionfish (Pterois volitans) on deep versus shallow reefs at Curacao

Biological Invasions, Journal Year: 2024, Volume and Issue: 27(1)

Published: Dec. 19, 2024

Language: Английский

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Description of the First Species of Polylepion (Teleostei: Labridae) from the Atlantic Ocean with Analysis of Evolutionary Relationships of the New Species

Ichthyology & Herpetology, Journal Year: 2023, Volume and Issue: 111(2)

Published: April 12, 2023

Submersible diving in the 1980/90s Bahamas and Cuba 2013–2018 at Curaçao, Dominica, Roatan resulted collection of a new species Polylepion, genus wrasse previously known only from Indian Pacific Oceans. The species, which inhabits rariphotic reef-fish faunal zone depths 219–457 m, is another example deep-reef belonging to largely shallow-reef family, this case family Labridae. Here, we describe provide phylogenetic placement for it by adding sequence data 12 genetic markers one its two congeners (P. cruentum eastern Ocean) published dataset comprising 336 wrasses that includes other congener, P. russelli, West/Central Our results resolve history Polylepion first molecular support monophyly genus.

Language: Английский

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