SMART Indicator Report: Inshore Survey (New England)

1 Indicator category

[Fill by hand, needs decision by Council]

2 Indicator name

Inshore Survey (New England)

Includes variable(s): Apex Predator Fall, Apex Predator Spring, Benthivore Fall, Benthivore Spring, Benthos Fall, Benthos Spring, Other Fall, Other Spring, Piscivore Fall, Piscivore Spring, Planktivore Fall, Planktivore Spring

3 Indicator brief description

Biomass time series for aggregate species groups from the Maine/New Hampshire inshore bottom trawl surveys conducted in Maine and New Hampshire state waters.

4 Indicator visualization

Each survey shows trends by aggregate group.

5 Indicator documentation

5.1 Are indicators available for others to use (data downloadable)?

## Yes

5.1.1 Where can indicators be found?

## Data: https://noaa-edab.github.io/ecodata/index.html 
## Description:  https://noaa-edab.github.io/catalog/ne_inshore_survey.html 
## Technical documentation:  https://noaa-edab.github.io/tech-doc/ne_inshore_survey.html

5.1.2 How often are they updated? Are future updates likely?

[need sequential look at datasets for update frequency. Future requires judgement]

5.1.3 Who is the contact?

Rebecca Peters (ME/NH survey), rebecca.j.peters@maine.gov

5.2 Gather indicator statistics

5.2.1 Units

## (KG/tow)

5.2.2 Length of time series, start and end date, periodicity

General overview: Spring and Fall

Indicator specifics:

Indicator	EPU	StartYear	EndYear	NumYears	MissingYears
Apex Predator Fall	NE	2000	2024	25	0
Apex Predator Spring	NE	2001	2024	23	1
Benthivore Fall	NE	2000	2024	25	0
Benthivore Spring	NE	2001	2024	23	1
Benthos Fall	NE	2000	2024	25	0
Benthos Spring	NE	2001	2024	23	1
Other Fall	NE	2000	2024	25	0
Other Spring	NE	2001	2024	23	1
Piscivore Fall	NE	2000	2024	25	0
Piscivore Spring	NE	2001	2024	23	1
Planktivore Fall	NE	2000	2024	25	0
Planktivore Spring	NE	2001	2024	23	1

5.2.3 Spatial location, scale and extent

General overview: Nearshore regions of the MAB and GOM

Indicator specifics:

Indicator	EPU
Apex Predator Fall	NE
Apex Predator Spring	NE
Benthivore Fall	NE
Benthivore Spring	NE
Benthos Fall	NE
Benthos Spring	NE
Other Fall	NE
Other Spring	NE
Piscivore Fall	NE
Piscivore Spring	NE
Planktivore Fall	NE
Planktivore Spring	NE

5.2.4 Management scale: all species, FMP level, species level, can it be aggregated or separated to different scales?

[Classify by hand, note gridded data if available could be applied to different species ranges]

5.2.5 Uncertainty metrics

5.3 Are methods clearly documented to obtain source data and calculate indicators?

## Yes

5.3.1 Can the indicator be calculated from current documentation?

[Build link to Tech-doc, look for current and previous methods]

5.3.2 Is code publicly available? up to date?

[Build link to Tech-doc, look for current and previous methods]

5.3.3 Have methods changed over time?

[Build link to Tech-doc, look for current and previous methods]

5.4 Are indicator underlying source data linked or easy to find?

[Build link to Tech-doc, look for source, may require judgements]

5.4.1 Where are source data stored?

[Build link to Tech-doc, look for source, may require judgement]

5.4.2 How/by whom are source data updated? Are future updates likely?

[Build link to Tech-doc, look for source, may require judgement]

5.4.3 How often are they updated?

[Build link to Tech-doc, look for source, may require judgement]

6 Indicator analysis/testing or history of use

6.1 What decision or advice processes are the indicators currently used in?

Indicators from these inshore surveys are analogous to those produced by the NEFSC trawl survey in the aggregate survey biomass indicator dataset.

6.2 What implications of the indicators are currently listed?

The trends in the Maine/New Hampshire inshore survey vary compared to the NEFSC survey. This is driven by different species availability to surveys in time and space as well as the surveys sampling different habitats. Nearshore habitats are important to fish and fisheries so we monitor them as as well as trends from the larger EPUs.

6.3 Do target, limit, or threshold values already exist for the indicator?

[Fill by hand; if not in key results or implications, likely does not exist]

6.4 Have the indicators been tested to ensure they respond proportionally to a change in the underlying process?

[Fill by hand; if not in introduction, key results, or implications, likely not tested]

6.5 Are the indicators sensitive to a small change in the process, or what is the threshold of change that is detectable?

[Fill by hand; if not in introduction, key results, or implications, likely not tested]

6.6 Is there a time lag between the process change and the indicator change? How long?

[Fill by hand; if not in introduction, key results, or implications, likely not tested]

7 Comments

[Fill below by hand once above data complete]

7.1 Additional potential links to management in addition to uses listed above

7.2 What additional work would be needed for the Council to use the indicator?

7.3 What issues are caused if there is a gap or delay in data underlying the indicator