Pith Number

pith:HO2N3NPQ

pith:2026:HO2N3NPQ6LKJ4SH3VAD7VDCB26

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Recent advances in statistical methodology applied to the Hjort liver index time series (1859-2012) and associated influential factors

Gudmund H. Hermansen, Nils Lid Hjort, Olav S. Kjesbu

Recent statistical methods can fruitfully analyze the 150-year Hjort liver index time series for Atlantic cod and its environmental interactions.

arxiv:2605.14000 v1 · 2026-05-13 · stat.AP

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\usepackage{pith}
\pithnumber{HO2N3NPQ6LKJ4SH3VAD7VDCB26}

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4 Citations open

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Claims

C1strongest claim

Certain recent advances in statistical methodology have promising potential for fruitful use in general biology and the fisheries sciences... The methods are illustrated for the Hjort liver quality index time series... Our study offers a detailed examination of this series and how it relates to and interacts with associated factors, including Kola winter temperatures, length distribution parameters, cod mortality, and a certain index related to availability of food.

C2weakest assumption

That the historical liver index series and associated factors are sufficiently accurate and complete for the advanced dynamic and focused-model techniques to yield reliable inferences without substantial measurement error or selection bias in the archival reconstruction.

C3one line summary

Applies focused model selection, dynamic GOF tests, breakpoint finding, and confidence distributions to the 1859-2012 cod liver index and its links to environmental and biological factors.

References

67 extracted · 67 resolved · 0 Pith anchors

[1] Aalen, O. O. and Borgan,. Survival and Event History Analysis: A Process Point of View , publisher =

[2] Selected Papers of Hirotugu Akaike , pages= 1998

[3] Annals of the institute of Statistical Mathematics , volume=

[4] Brillinger, D. R. , title =

[5] Brockwell, P. J. and Davis, R.A. , title =

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-17T23:39:13.164652Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bb4ddb5f0f2d49e48fba807fa8c41d7bccdc5d93eeccd828d842e60609be191

Aliases

arxiv: 2605.14000 · arxiv_version: 2605.14000v1 · doi: 10.48550/arxiv.2605.14000 · pith_short_12: HO2N3NPQ6LKJ · pith_short_16: HO2N3NPQ6LKJ4SH3 · pith_short_8: HO2N3NPQ

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/HO2N3NPQ6LKJ4SH3VAD7VDCB26 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 3bb4ddb5f0f2d49e48fba807fa8c41d7bccdc5d93eeccd828d842e60609be191

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ec65627f5c72a1ae85d81f8a6963de875eea5f470242dd7fe11adf76c26efc2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2026-05-13T18:08:27Z",
    "title_canon_sha256": "64777b82ab908f198c204c1af8efb0d5558d926dc08d90cfcc03994613bd241d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.14000",
    "kind": "arxiv",
    "version": 1
  }
}