ArticleBiodiversity data journal2026
Biodiversity of the abyssal and hadal zone in the Nova Canton Trough (Central Pacific Ocean; 2751-7989 m): a visual inventory.
Article in Biodiversity data journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Comprehensive biodiversity inventories of abyssal and hadal ecosystems remain rare due to the financial and logistical challenges associated with operating in the deepest parts of the ocean. However, deep-sea exploration programmes are increasingly generating extensive video datasets offering new opportunities to document biodiversity across broad depth ranges. Here, we present the most extensive visual biodiversity inventory assembled from an abyssal-hadal system to date, using imagery collected in the Nova Canton Trough (Central Pacific Ocean), combining observations from 99 baited lander deployments and 16 submersible transects conducted between ~ 3000 m and ~ 8000 m depth. Across more than 1500 hours of lander video and 136 hours of submersible video, ~ 30,000 individual organisms belonging to the kingdoms Animalia and Protista were recorded and grouped into 325 morphotaxa, spanning a wide range of benthic and demersal taxa. The integration of baited and non-baited visual platforms provided complementary observations of mobile scavengers and sessile or low-mobility benthic taxa. Combined observations reveal a depth-structured transition from a diverse abyssal biota through a broad abyssal-hadal transition zone to a distinctive hadal assemblage. Notable findings include the first population of hadal snailfish (
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.