| Juveniles {gbm.auto} | R Documentation |
Data: Explanatory and response variables for 4 juvenile rays in the Irish Sea
Description
A dataset containing explanatory variables for environment, fishery and predators of juvenile rays in the Irish Sea, and the response variables, abundance CPUEs of cuckoo, thornback, blonde and spotted rays.
Usage
data(Juveniles)
Format
A data frame with 2136 rows and 46 variables:
- Survey_StNo_HaulNo_Year
Index column of combined Survey number, station number, haul number, and year
- Latitude
Decimal latitudes in the Irish Sea
- Longitude
Decimal longitudes in the Irish Sea
- Depth
Metres, decimal
- Temperature
Degrees, decimal
- Salinity
PPM
- Current_Speed
Metres per second at the seabed
- Distance_to_Shore
Metres, decimal
- F_LPUE
Commercial fishery LPUE in Kg/Hr
- Scallop
Average KwH Scallop effort from logbooks, Marine Institute and MMO combined
- MI_Av_E_Hr
Average effort hours, Marine Institute Scallop VMS, 0.03 x 0.02 rectangles, all Irish Sea, 2006-14
- MI_Av_LPUE
Average scallop CPUE, Marine Institute Scallop VMS, 0.03 x 0.02 rectangles, all Irish Sea, 2006-14
- MI_Sum_Liv
Sum of live weight. Average scallop CPUE, Marine Institute Scallop VMS, 0.03 x 0.02 rectangles, all Irish Sea, 2006-14
- Whelk
MMO Whelk LPUE 2009-12, pivot, polygons to points
- MmoAvScKwh
MMO Scallop Effort 2009-12, pivot, polygons to points. ICES rectangles
- Cod_C
ICES IBTS CPUE of cod caught between 1994 - 2014 large enough to predate upon <= year 1 cuckoo rays
- Cod_T
As Cod_C for yr1 thornback rays
- Cod_B
As Cod_C for yr1 blonde rays
- Cod_S
As Cod_C for yr1 spotted rays
- Haddock_C
As Cod_C, haddock predating upon cuckoo rays
- Haddock_T
As Cod_C, haddock predating upon thornback rays
- Haddock_B
As Cod_C, haddock predating upon blonde rays
- Haddock_S
As Cod_C, haddock predating upon spotted rays
- Plaice_C
As Cod_C, plaice predating upon cuckoo rays
- Plaice_T
As Cod_C, plaice predating upon thornback rays
- Plaice_B
As Cod_C, plaice predating upon blonde rays
- Plaice_S
As Cod_C, plaice predating upon spotted rays
- Whiting_C
As Cod_C, whiting predating upon cuckoo rays
- Whiting_T
As Cod_C, whiting predating upon thornback rays
- Whiting_B
As Cod_C, whiting predating upon blonde rays
- Whiting_S
As Cod_C, whiting predating upon spotted rays
- ComSkt_C
As Cod_C, common skate predating upon cuckoo rays
- ComSkt_T
As Cod_C, common skate predating upon thornback rays
- ComSkt_B
As Cod_C, common skate predating upon blonde rays
- ComSkt_S
As Cod_C, common skate predating upon spotted rays
- Blonde_C
As Cod_C, blonde ray predating upon cuckoo rays
- Blonde_T
As Cod_C, blonde ray predating upon thornback rays
- Blonde_S
As Cod_C, blonde ray predating upon spotted rays
- C_Preds
All predator CPUEs combined for cuckoo rays
- T_Preds
All predator CPUEs combined for thornback rays
- B_Preds
All predator CPUEs combined for blonde rays
- S_Preds
All predator CPUEs combined for spotted rays
- Cuckoo
Numbers of juvenile cuckoo rays caught, standardised to 1 hour
- Thornback
Numbers of juvenile thornback rays caught, standardised to 1 hour
- Blonde
Numbers of juvenile blonde rays caught, standardised to 1 hour
- Spotted
Numbers of juvenile spotted rays caught, standardised to 1 hour
Author(s)
Simon Dedman, simondedman@gmail.com