[Catalog Page Edit]: narw.rmd

[DWLinden]

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27 Right Whale Abundance

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Right Whale Abundance {#narw}

Description: Right Whale

Found in: State of the Ecosystem - Gulf of Maine & Georges Bank (2017+), State of the Ecosystem - Mid-Atlantic (2017+)

Indicator category: Synthesis of published information; Published methods

Contributor(s): Dan Linden

Data steward: Dan Linden, [email protected]

Point of contact: Dan Linden, [email protected]

Public availability statement: Source data are available from the New England Aquarium upon request. Derived data are available here.

Methods

Data sources

The North Atlantic right whale abundance estimates were taken from a published document [see @Linden_narw_pop_TM].

Calves birth estimates are available in @Pace2017, with more recent years shared here.

Data extraction

Data were collected from existing reports and validated by report authors.

Data analysis

Analysis for right whale abundance estimates is based on methods by @Pace2017 and @Linden2024_births, as documented most recently by @Linden_narw_pop_TM. Data and code can be found in the following Github repository: NEFSC/PSD-NARW_popsize.

Data processing

Time series of right whale and calf abundance estimates were formatted for inclusion in the ecodata R package using this R code.

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