Evidence map›Paper›PMID 41807398›Full record

ArticleScientific reports2026

Long-term random sampling confirms high-use areas and indicates declining abundance of juvenile smalltooth sawfish (Pristis pectinata) in Charlotte Harbor, Florida.

Nicholas A Farmer, Adam B Brame, Rabiya Dar, Andrew K Wooley, Lukas B Heath, Dylan M Yakich, Steven M Lombardo, Gregg R Poulakis

Erratum issuedAbstract read
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In one paragraph

Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Nicholas A FarmerNOAA/National Marine Fisheries Service, Southeast Regional Office, 263 13th Avenue South, St. Petersburg, FL, 33701, USA. nick.farmer@noaa.gov.
Adam B BrameNOAA/National Marine Fisheries Service, Southeast Regional Office, 263 13th Avenue South, St. Petersburg, FL, 33701, USA.
Rabiya DarNOAA/National Centers for Coastal Ocean Science, 1305 East West Highway, Silver Spring, MD, 20910, USA.
Andrew K WooleyCharlotte Harbor Field Laboratory, Fish and Wildlife Research Institute, Florida Fish and Wildlife Conservation Commission, 585 Prineville Street, Port Charlotte, FL, 33954, USA.
Lukas B HeathCharlotte Harbor Field Laboratory, Fish and Wildlife Research Institute, Florida Fish and Wildlife Conservation Commission, 585 Prineville Street, Port Charlotte, FL, 33954, USA.
Dylan M YakichCharlotte Harbor Field Laboratory, Fish and Wildlife Research Institute, Florida Fish and Wildlife Conservation Commission, 585 Prineville Street, Port Charlotte, FL, 33954, USA.
Steven M LombardoNOAA/National Centers for Coastal Ocean Science, 1305 East West Highway, Silver Spring, MD, 20910, USA.
Gregg R PoulakisCharlotte Harbor Field Laboratory, Fish and Wildlife Research Institute, Florida Fish and Wildlife Conservation Commission, 585 Prineville Street, Port Charlotte, FL, 33954, USA.

Funding

National Marine Fisheries Service NA10NMF4720032
6 · The paper itself

Abstract

We evaluated 13 years of fishery-independent small juvenile (< 1.86 m stretch total length) endangered smalltooth sawfish sampling data from southwest Florida's Charlotte Harbor estuarine system. From 2010 through 2022, within the sampling domain, estimated abundance declined, with an annual average across all seasons of 34 ± 11 individuals (range: 15-69). High-use areas were spatiotemporally stable and associated with well-oxygenated (dissolved oxygen > 7 mg/L), warm (25-33 °C), and brackish (salinity 5-27) waters between 5 and 15 km upriver along natural shorelines with concentrations of mangroves in both riverine nurseries. Adult female abundance, back-calculated from expected brood size (48 ± 16, range: 26-144) and stable age distribution (87 ± 30, range: 39-211), was low. Our findings of a significant declining trend in relative abundance of small juveniles and limited numbers of adult females are concerning considering ongoing threats from commercial shrimp trawl bycatch, destruction of nursery habitats, and major recent mortality events. Our model facilitates estimation of the number of individuals potentially exposed to harmful anthropogenic activities and identifies perennial high-use areas as priorities for permanent protection from habitat alterations and loss to promote recovery of the endangered smalltooth sawfish population in this unique estuarine system.

Indexed as

FishesAnimalsConservation of Natural ResourcesEcosystemEndangered SpeciesEstuariesFemaleFloridaPopulation DynamicsSeasonsCharlotte HarborEndangered speciesPopulation sizeRecoveryRelative abundanceSmalltooth sawfishSpecies distribution model

Identifiers

PMID41807398
PMCPMC12979683

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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.