Documentation for NEMIS Northeast Electronic Monitoring Information System

Haul Element Definitions in NEMIS API

Guidance for marking the haul elements in the NEFSC EM API based on the fishing gear used. The instructions below address the format and structure of data being submitted through the API. Developers may view the complete OpenAPI v3 specification for this API online.

This guidance summarizes the element attributes that are required when observed = Y, but in other instances it is important to submit only those attributes that are seen on video.

Table of Contents
Groundfish fishery
Herring fishery
Change log

Groundfish

gear	starthaul*	endhaul*
Bottom Trawl, Trawl Seines gear_category: [091,100]	Codend is deployed and hits water with intent of setting out for fishing	Winches engaged for haul back and doors being retrieved
Gillnet & Longline gear_category: [200,400]	First surface system (highflyer or buoy) onboard	Last piece of surface system (highflyer or buoy) is onboard
Handline gear_category: [700]	[does not apply]	Gear is removed from the water and fishing activity ceases

FY2020 [Deprecated] click to display

Trawl [DEPRECATED]

gear_category: [090]

haul element	Fishing event
set_start_datetime set_start_lat set_start_lon	Codend is deployed and hits water with intent of setting out for fishing [optional] If comment explaining the absence of this element is included
set_end_datetime set_end_lat set_end_lon	Winches stop and lock; wire no longer being set out [optional] If comment explaining the absence of this element is included
haulback_start_datetime haulback_start_lat haulback_start_lon	Winches engaged for haul back and doors being retrieved
haulback_end_datetime haulback_end_lat haulback_end_lon	Codend is brought onboard and crew prepares to release the contents
catch_sort_end_datetime	[optional] At completion of catch handling, when all kept catch has been cleaned and stowed, discarded catch has been processed.
comment	[optional] Comment is required if set_start or set_end are not included

Gillnet and Longline [DEPRECATED]

gear_category: [200,400]

haul element	Fishing event
set_start_datetime set_start_lat set_start_lon
set_end_datetime set_end_lat set_end_lon
haulback_start_datetime haulback_start_lat haulback_start_lon	First surface system (highflyer or buoy) onboard
haulback_end_datetime haulback_end_lat haulback_end_lon	Last piece of surface system (highflyer or buoy) is on board
catch_sort_end_datetime	[optional] When all fish are processed and stowed and all discards are measured. If fish are continuously being processed or gutted and there is no break between hauls, the field should be kept null.

Set start and set end are not able to be captured with EM on gillnet and longline trips

Jig and Handline [DEPRECATED]

gear_category: [700]

haul element	Fishing event
set_start_datetime set_start_lat set_start_lon	[optional] When first rod or line is deployed
set_end_datetime set_end_lat set_end_lon
haulback_start_datetime haulback_start_lat haulback_start_lon	When all gear is completely retrieved and aboard the vessel
haulback_end_datetime haulback_end_lat haulback_end_lon
catch_sort_end_datetime	[optional] When all fish are processed/gutted and stowed and all discards are measured.

Set start and set end are not defined on jig trips

Other gears [DEPRECATED]

gear_category: [800]

haul element	Fishing event
set_start_datetime set_start_lat set_start_lon
set_end_datetime set_end_lat set_end_lon
haulback_start_datetime haulback_start_lat haulback_start_lon	When all gear is completely retrieved and aboard the vessel
haulback_end_datetime haulback_end_lat haulback_end_lon
catch_sort_end_datetime	[optional] When all fish are processed/gutted and stowed and all discards are measured.

Herring

gear	setstart*	starthaul*	endhaul*
Midwater Trawl (Single) gear_category: [092]	[does not apply]	First component of net deployed, i.e.; net hits the water	When the hauling equipment is put into gear with intention to haul back
Midwater Trawl (Pair 1) gear_category: [092]	[does not apply]	First component of net deployed, i.e.; net hits the water	Net retrieved to the surface, i.e.; warps retrieved and aboard both vessels
Midwater Trawl (Pair 2) gear_category: [092]	[does not apply]	Warps are passed over from vessel that set gear and are retrieved by the crew	Net retrieved to the surface, i.e.; warps retrieved and aboard both vessels
Purse Seine gear_category: [030]	When the skiff, highflier, or sea anchor hits the water with intention to set the net	[does not apply]	[does not apply]

FY2020 [Deprecated] click to display

Single vessel mid-water trawl fisheries [DEPRECATED]

gear_category: [097]

Haul element	Fishing event
set_start_datetime set_start_lat set_start_lon	Codend is lowered into the water surface
set_end_datetime set_end_lat set_end_lon	Reviewer confirms that winches have been disengaged, tow wire is no longer paid out
haulback_start_datetime haulback_start_lat haulback_start_lon	Reviewer confirms that hauling equipment is engaged with intention to haul back and end the tow
haulback_end_datetime haulback_end_lat haulback_end_lon
catch_sort_end_datetime	[optional] Reviewer confirms that all catch processing has ended

Pair trawl in MWT fisheries [DEPRECATED]

gear_category: [112]

Haul element	Vessel 1	Vessel 2
set_start_datetime set_start_lat set_start_lon	Reviewer watching video of vessel that sets gear to initiate the haul	Reviewer watching video from vessel waiting to have lines passed across from paired vessel that is setting their net, Haul begins when lines are passed over
set_end_datetime set_end_lat set_end_lon	The beginning of fishing (when the winches have stopped)	The beginning of fishing (when the winches have stopped)
haulback_start_datetime haulback_start_lat haulback_start_lon
haulback_end_datetime haulback_end_lat haulback_end_lon	Vessels move in and are parallel to each other, warps retrieved to vessels, crew begins detaching from block	Vessels move in and are parallel to each other, warps retrieved to vessels, crew begins detaching from block
catch_sort_end_datetime	Reviewer confirms that all catch processing has ended

There is no haul back start recorded for paired MWT trips (Reviewer does not record when winches are activated)

Fishing event	event_category	event_code	event_reason
Pumping begins	PUMP	PUMPBEGIN
Pumping is interrupted	PUMP	PUMPSTOP	CLOGNPD CLOGPD OTHER PUMPADJ UNK
Pump starts after an interruption	PUMP	PUMPSTART
Pumping complete	PUMP	PUMPEND
Gear onboard	FISHING OPERATIONS	GEARONBRD

Haul Definitions Change log

[2024-03-25]

Added "100 (TRAWL SEINES)" to the Bottom Trawl gear definition.

[2021-03-11]

Haul element requirements published for FY2021.

click to display older changes

[2020-08-06]

Haul element requirements added for gear_category = 800 (Other gears).

[2020-07-17]

Haul element attributes set_start_datetime, set_start_lat, set_start_lon, set_end_datetime, set_end_lat, and set_end_lon are now allowed (optional) when gear_category = 090 (Trawl) and a comment is included explaining why the haul should be marked amount_reviewed = 'FULL' without these haul element attributes.

[2020-07-09]

Haul element attributes set_start_datetime, set_start_lat, and set_start_lon are now allowed (optional) when gear_category = 700 (Jig and Handline).

[2020-03-24]

Initial publication