They were obtained from data-collection programs operated by the NMFS MRFSS since 1981.
Moreover, unlike the coastwide MRFSS CPUE, the NEFSC and SEAMAP indices were considered reflective of the Atlantic Croaker stock size and trajectory (ASMFC (1)).
The MRFSS surveys clearly weren't providing what was needed," acknowledged Gordon Colvin, MRIP's program manager.
Until then, MRFSS surveys will continue to be mainly conducted by phone and on an "intercept" basis.
In order to examine whether this aggregation strategy induces any bias into the estimation of the conditional logit model, a variable (m) was created that represents the number of MRFSS
sites aggregated into each new site.
Summarized RBS and MRFSS
data, including numbers of white marlin kept and released by year, were obtained from the NMFS (2) (Table 2).
The intercept (creel sampling) portion of the MRFSS
is an interview-type survey of recreational fishing trips and is conducted at public fishing sites such as marinas, launching ramps, fishing piers, and beaches.
Less is known about cowcod catch taken by private fishing vessels, but MRFSS
survey data indicate that trends in catch and effort are similar to those in the CPFV fishery.
In 1991 and 1992, the MRFSS
provided synoptic data on the spatio-temporal distribution of sea turtles by asking recreational anglers if they had observed a sea turtle on their fishing trip.
Mean recreational landings by mode were calculated for 1979-97 and used for 1972-78, a period of minimal exploitation before MRFSS
data were collected.
Reports of skiff fishing effort for the Monterey Bay region were available only from NCMSFS from 1959 to 1961 (Miller and Gotshall, 1965), and MRFSS
from 1981 to 1986 (Karpov et al.
estimated the number of boat fishing trips in 1979-81 at 0.