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Evidence

Where all of this came from.

39 reference records rest on 224 published pages, and 109 of those come from state and provincial natural-resources departments. That suits a set of records about what lives in the water those departments survey. The rest is federal survey work, university and extension guides, and interagency reports. The counts are below. Every reviewed line sits behind a record or a search, with the sources standing behind its record.

Carrier reviewed
2026-09-25
Next review due
2026-12-24
Review cadence
90 days
Publication state
Approved — reviewed evidence, within its review cadence

How to read this

A line is cited as precisely as someone checked it.

Where a reviewer traced a line to the pages that carry it, the line names those pages and, when the evidence is narrower than the record, where it comes from — one coast, one lake, one region. 605 of 1049 of the lines below are traced that way. The rest show the sources standing behind their whole record, marked “record’s sources”, because nobody has yet checked which page carried which line, and printing a single citation there would be a mapping nobody made.

  • National

    52

    A federal or national government body — USGS, NOAA, EPA, the Fish and Wildlife Service, the Park Service, Fisheries and Oceans Canada.

  • State

    109

    A state, provincial or commonwealth natural-resources department. Most of this carrier rests here, which suits it: these are the bodies that survey the water the records describe.

  • Interagency

    12

    A commission or joint survey run across several agencies, such as the Great Lakes Fishery Commission's forage task groups.

  • University

    45

    A university research programme, cooperative extension service or Sea Grant office. Published work, but not the agency that manages the water.

  • Journal

    6

    A peer-reviewed paper, or a curated scientific register such as the World Register of Marine Species. Added with the 2026-09-25 evidence review, which went to the primary study where no agency page said what a claim needed.

Probe leftovers

What the weekly check could not treat as ordinary.

These addresses are still the citations. The check named what it saw. None of them is a gone page in the MISIN sense, so the records were not rewritten to hide a redirect, a timeout, or a bot wall.

  • Iowa DNR — BluegillMoved

    The cited address answers through a permanent redirect. GET on the page that lands still names Bluegill.

    A same-site move that still names the animal is not the MISIN case. The citation stays until a reviewer reads the new address into the record.

  • CASG — market squidUnreachable from this network

    The California Sea Grant market-squid page times out from the probe network.

    NOAA still covers the same animal on this record. The CASG address stays; a timeout is not a reason to drop a citation.

  • Mass.gov — menhaden and longfin squidRefused the probe

    Both creature-feature pages answered 403 from the probe network.

    A bot wall is not evidence the page is gone. The citations stay; the weekly check does not fail the build on unverifiable.

  • Michigan DNR — crayfish identification PDFRefused the probe

    The cited PDF answered 403 from the probe network.

    A refused PDF is not a 404. The citation stays on the crayfish record until a reviewer can open it.

  • Smithsonian Tropical Research Institute — silversidesRefused the probe

    The Menidia page answered 500 from the probe network.

    A 500 is not a 404, and it is not a 403. The citation stays.

Showing 33 of 1049 claims and 8 of 224 sources.

Claims

Every reviewed line in the app.

  • Inshore squid →33 lines

    • What you can seeOn Atlantic longfin squid, fins run at least half the length of the mantleNOAA-LONGFIN-SQUID, MADMF-LONGFIN-SQUIDEvidence from: Atlantic longfin squid (Doryteuthis pealeii), northwest Atlantic shelf
    • What you can seeEight arms plus two much longer tentacles with spoon-shaped, sucker-covered endsNOAA-SQUIDOLOGY, NOAA-MARKET-SQUID, CDFW-MARKET-SQUID-FMPEvidence from: General squid character (both species)
    • What you can seeLarge eyes; on the Atlantic longfin each is covered by a corneaNOAA-LONGFIN-SQUID, MADMF-LONGFIN-SQUID, CDFW-MARKET-SQUID-FMPEvidence from: Atlantic longfin squid (Doryteuthis pealeii), northwest Atlantic shelf
    • What you can seeAtlantic longfin squid: typically pink or orange, mottled with brown or purple, and changing as you watchNOAA-LONGFIN-SQUID, MADMF-LONGFIN-SQUIDEvidence from: Atlantic longfin squid (Doryteuthis pealeii), northwest Atlantic shelf
    • What you can seeA stiff internal shell — the pen — inside the mantleNOAA-LONGFIN-SQUID, NOAA-SQUIDOLOGYEvidence from: General squid character (both species)
    • What you can seePacific market squid: iridescent milky white and purple, and changing colour quicklyNOAA-MARKET-SQUID, CDFW-MARKET-SQUID-FMPEvidence from: Pacific market squid (Doryteuthis opalescens), California Current
    • What argues against itEight arms and no long tentacles is an octopus, not a squidNOAA-SQUIDOLOGYEvidence from: General squid character (both species)
    • What argues against itA segmented body with flaps down the sides and no arms is a marine wormrecord’s sources
    • What argues against itFins shorter than half the mantle rule out the longfin specifically, though this record does not attempt to name the other speciesNOAA-LONGFIN-SQUID, MADMF-LONGFIN-SQUIDEvidence from: Atlantic longfin squid (Doryteuthis pealeii), northwest Atlantic shelf
    • Declared limitNo source consulted states an arm and tentacle count for the longfin squid specifically. The eight-plus-two count is sourced as a general squid character and for the Pacific market squid.NOAA-SQUIDOLOGY, NOAA-MARKET-SQUID, CDFW-MARKET-SQUID-FMPEvidence from: General squid character (both species)
    • Declared limitNo source consulted offers a character that tells Atlantic longfin from Pacific market squid in the hand. The sources describe different colours (pink or orange and mottled on the longfin, milky white and purple on the market squid) and different maximum sizes, but none offers them as a separator; the ocean does that work.NOAA-LONGFIN-SQUID, NOAA-MARKET-SQUIDEvidence from: Both species compared
    • Declared limitNothing in the consulted sources describes what a squid looks like from the surface, in the surf or in an estuary. Atlantic longfin squid have been caught in Narragansett Bay, Long Island Sound and the Hudson-Raritan estuary; NOAA states plainly that Pacific market squid are rarely found in estuaries, bays or river mouths. If you are watching bait flush in a bay, this record cannot tell you it was squid.NOAA-EFH-LONGFIN-SQUID, NOAA-MARKET-SQUIDEvidence from: Estuary use differs by ocean
    • Declared limitMaximum mantle length for the Atlantic longfin is published as over 40 to 50 cm, as about 50 cm, as 47 cm, and as 1.6 feet. Roughly consistent, but no one figure is offered as definitive.MADMF-LONGFIN-SQUID, NOAA-EFH-LONGFIN-SQUID, VIMS-LONGFIN-SQUID, NOAA-LONGFIN-SQUIDEvidence from: Atlantic longfin squid (Doryteuthis pealeii), northwest Atlantic shelf
    • Size bandlarva: 1-15 (Atlantic longfin paralarvae, 1.4-15 mantle length) mmNOAA-EFH-LONGFIN-SQUIDEvidence from: Atlantic longfin squid (Doryteuthis pealeii), northwest Atlantic shelf
    • Size bandyoung-of-year: 15-80 (Atlantic longfin juveniles; market squid school from 15) mmNOAA-EFH-LONGFIN-SQUID, CDFW-MARKET-SQUID-FMPEvidence from: Atlantic longfin squid (Doryteuthis pealeii), northwest Atlantic shelf
    • Size bandadult: 80-490 (Atlantic longfin, most under 300; market squid mature near 100) mmNOAA-LONGFIN-SQUID, MADMF-LONGFIN-SQUID, VIMS-LONGFIN-SQUID, NOAA-EFH-LONGFIN-SQUID, NOAA-MARKET-SQUID, CDFW-MARKET-SQUID-FMPEvidence from: Upper edge Atlantic longfin only; market squid far smaller
    • Water typenearshorerecord’s sources
    • Water typeinshorerecord’s sources
    • Water typeoffshorerecord’s sources
    • Life stagelarvarecord’s sources
    • Life stageyoung-of-yearrecord’s sources
    • Life stageadultrecord’s sources
    • Where it sitsAtlantic longfin squid: on the bottom by day, dispersing up into the water column at nightNOAA-LONGFIN-SQUID, VIMS-LONGFIN-SQUID, NOAA-EFH-LONGFIN-SQUIDEvidence from: Atlantic longfin squid (Doryteuthis pealeii), northwest Atlantic shelf
    • Where it sitsyoung Atlantic longfin squid live in the upper ten metres over water roughly fifty to a hundred and fifty metres deepNOAA-EFH-LONGFIN-SQUIDEvidence from: Atlantic longfin squid (Doryteuthis pealeii), northwest Atlantic shelf
    • Where it sitsAtlantic longfin squid, north of Cape Hatteras: inshore in spring through autumn, offshore along the shelf edge for winterNOAA-LONGFIN-SQUID, NOAA-EFH-LONGFIN-SQUID, MADMF-LONGFIN-SQUIDEvidence from: Atlantic longfin squid north of Cape Hatteras
    • Where it sitsPacific market squid: young squid stay just off the bottom on the shelf by day and spread through the water column at night; adults also sit deeper by day than at nightCDFW-MARKET-SQUID-FMPEvidence from: Pacific market squid (Doryteuthis opalescens), California Current
    • Where it sitsPacific market squid: offshore except when they come into shallow, sandy nearshore water to spawn, usually April to October in central California and October to April or May in southern CaliforniaNOAA-MARKET-SQUID, CDFW-MARKET-SQUID-FMPEvidence from: Pacific market squid (Doryteuthis opalescens), California Current
    • How it movesshoots backwards by pumping water in through the open mantle and forcing it out through the funnelNOAA-SQUIDOLOGY, CDFW-MARKET-SQUID-FMPEvidence from: General squid character (both species)
    • How it moveschanges colour and pattern by expanding and contracting pigment cells in the skinNOAA-SQUIDOLOGY, NOAA-LONGFIN-SQUID, CDFW-MARKET-SQUID-FMPEvidence from: General squid character (both species)
    • How it movesschoolsMADMF-LONGFIN-SQUID, NOAA-MARKET-SQUID, CDFW-MARKET-SQUID-FMPEvidence from: General squid character (both species)
    • Sources disagreeSpawning windows for the Pacific market squid differ between two sources that also name different regions: April to October in central California in NOAA's account, April to November in northern California in California Sea Grant's.record’s sources
    • Sources disagreeJuvenile longfin depth differs within and between NOAA sources: the essential-habitat document gives the upper 10 m over water 50-150 m deep in its text and 50-100 m in its table, and NOAA's species page gives water 165 to 1,650 feet deep.record’s sources
    • Sources disagreeThe longfin's lower temperature limit is given as at least 9 °C (48 °F) by Massachusetts DMF and as a minimum of 8 °C (46 °F) by the FAO account VIMS reproduces.record’s sources

The pages themselves

All 224, and what each one is holding up.

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