Datasets:

reefsupport
/

marine-data

Fish and fauna photos with bounding boxes (x_min, y_min, x_max, y_max normalised to 0-1, native label). 25,912 images; splits: test 3,472, train 18,967, validation 3,473. Upstream splits are kept where present, otherwise a split_group hash. The build ran a deduplication gate.

Columns

image_sha256, image, source_id, license, licence_class, attribution, boxes, points, split, split_group, upstream_id, upstream_url, lat, lon, depth_m, meow_realm, habitat, width, height

Sources and licences

source	images	licence	attribution
roboflow-aquarium	637	CC BY 4.0	Roboflow, Aquarium Dataset, 2020, CC BY 4.0, https://public.roboflow.com/object-detection/aquarium
uiis	4,622	Apache-2.0	Lian et al., WaterMask: Instance Segmentation for Underwater Imagery, ICCV 2023. UIIS. Apache-2.0. https://huggingface.co/datasets/LiamLian0727/UIIS
uiis10k	10,042	Apache-2.0	Li et al. 2025, Advancing Marine Research: UWSAM Framework and UIIS10K Dataset for Precise Underwater Instance Segmentation. UIIS10K. Apache-2.0. https://huggingface.co/datasets/LiamLian0727/UIIS10K
usis10k	10,611	Apache-2.0	Lian et al., Diving into Underwater: Segment Anything Model Guided Underwater Salient Instance Segmentation and A Large-scale Dataset, ICML 2024. USIS10K. Apache-2.0. https://huggingface.co/datasets/LiamLian0727/USIS10K

Licence texts are in LICENSE, copyright holders and attribution lines in NOTICE.

Image provenance

Images in this configuration originate from UIIS, UIIS10K and USIS10K, distributed by their authors under the Apache License 2.0. The original publications state that the images were gathered from public sources and earlier datasets, so copyright in individual images may rest with third parties. Rights holders can request removal via https://github.com/reefsupport/marine-data/issues or https://www.reef.support/contact.

Notes

Boxes for uiis, uiis10k and usis10k are derived from the upstream instance annotations, one box per instance. Boxes for roboflow-aquarium are the source's own.
This configuration uses the US spelling license for the licence column.

Changes made by Reef Support: images and masks were re-encoded into Parquet, class_map or instances were added, and splits and split_group were assigned.

Load

from datasets import load_dataset
ds = load_dataset("reefsupport/marine-data", "fish-boxes")

Files

README.md, LICENSE, NOTICE and CHECKSUMS.sha256 (sha256 of every file of the configuration). To verify the data files: grep ' data/' CHECKSUMS.sha256 | sha256sum -c - from a directory that contains data/.