{
  "annotation_id": "0b71c2c4-8de0-481f-8cab-5657865a6a3a",
  "date_created": "2026-03-02T18:01:32.322000Z",
  "date_modified": "2026-03-02T18:01:32.322000Z",
  "file_hash": "8c7c5a2fe4a3d99ee9561c90916d52929ebebde8069968d58b32d0ceab15b675",
  "private": false,
  "record": {
    "abstract": "Motivated by the finding that there is some biological universality in the\nrelationship between school geometry and school biomass of various pelagic\nfishes in various conditions, I here establish a scaling law for school\ndimensions: the school diameter increases as a power-law function of school\nbiomass. The power-law exponent is extracted through the data collapse, and is\nclose to 3/5. This value of the exponent implies that the mean packing density\ndecreases as the school biomass increases, and the packing structure displays a\nmass-fractal dimension of 5/3. By exploiting an analogy between school geometry\nand polymer chain statistics, I examine the behavioral algorithm governing the\nswollen conformation of large-sized schools of pelagics, and I explain the\nvalue of the exponent.",
    "arxiv_id": "q-bio/0501035",
    "authors": [
      "Hiro-Sato Niwa"
    ],
    "categories": [
      "q-bio.PE",
      "cond-mat.other",
      "cond-mat.stat-mech",
      "q-bio.OT"
    ],
    "doi": "10.1016/j.jtbi.2005.01.022",
    "journal_ref": "J. Theor. Biol. 235 (2005) 419-430",
    "title": "Power-law scaling in dimension-to-biomass relationship of fish schools",
    "url": "https://arxiv.org/abs/q-bio/0501035"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "50a25b16-0556-41c1-967c-74deefca0cbe",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}