23 Highly Migratory Species POP Catch Per Unit Effort

Description: CPUE from pelagic observer program (POP) observed hauls, presented as number of fish per haul, is provided for the northeast (shelf-wide) by year/species from 1992-2019.

Indicator category: Database pull with analysis

Found in: State of the Ecosystem - Gulf of Maine & Georges Bank (2021+), State of the Ecosystem - Mid-Atlantic (2021+)

Contributor(s): Tobey Curtis, Jennifer Cudney

Data steward: Tobey Curtis, Jennifer Cudney

Point of contact: Jennifer Cudney

Public availability statement: Source data are NOT publicly available. Pelagic observer data is considered confidential data, and must be screened to ensure that data meet requirements for “rule of three” at the set and vessel level before they can be distributed.

23.1 Methods

23.1.1 Data sources

Data for this indicator were compiled by NOAA Southeast Fisheries Science Center, Larry Beerkircher. These data come from the NOAA Southeast Fisheries Science Center databases holding the Atlantic highly migratory species information from the pelagic observer program.

The Southeast Pelagic Observer Program monitors the pelagic longline fleet all along the Northeast U.S. Shelf. This covers approximately 1000 hauls per year and targets 8% coverage of the fishing effort.

23.1.2 Data analysis

Catch per unit effort was calculated as number of individuals per haul and summarized by year and species.

The species groupings are available in the table below.

Category Common Name Species Name
Small Coastal Atlantic Sharpnose Rhizoprionodon terraenovae
Small Coastal Blacknose Carcharhinus acronotus
Small Coastal Bonnethead Sphyrna tiburo
Small Coastal Finetooth Carcharhinus isodon
Large Coastal Blacktip Carcharhinus limbatus
Large Coastal Bull Carcharhinus leucas
Large Coastal Great Hammerhead Sphyrna mokarran
Large Coastal Lemon Negaprion brevirostris
Large Coastal Nurse Ginglymostoma cirratum
Large Coastal Sandbar Carcharhinus plumbeus
Large Coastal Scalloped Hammerhead Sphyrna lewini
Large Coastal Silky Carcharhinus falciformis
Large Coastal Smooth Hammerhead Sphyrna zygaena
Large Coastal Spinner Carcharhinus brevipinna
Large Coastal Tiger Galeocerdo cuvier
Prohibited Atlantic Angel Squatina dumeril
Prohibited Basking Cetorhinus maximus
Prohibited Bigeye Thresher Alopias superciliosus
Prohibited Bignose Carcharhinus altimus
Prohibited Night Carcharhinus signatus
Prohibited Sand Tiger Carcharias taurus
Prohibited Sevengill Notorynchus cepedianus
Prohibited Sixgill Hexanchus griseus
Prohibited White Carcharodon carcharias
Pelagic Blue Prionace glauca
Pelagic Dusky Carcharhinus obscurus
Pelagic Oceanic Whitetip Carcharhinus longimanus
Pelagic Porbeagle Lamna nasus
Pelagic Shortfin Mako Isurus oxyrinchus
Pelagic Thresher Alopias vulpinus

23.1.3 Data Processing

Code used to process this data can be found on github - NOAA-EDAB/ecodata.

catalog link https://noaa-edab.github.io/catalog/hms_cpue.html