Monitoring juvenile fishes in the surf-zone of Virginia, and development of a juvenile bluefish young-of-the-year index in Virginia : 1994 sampling season

The Virginia Institute of Marine Science has conducted a monitoring program of the juvenile finfish in the Chesapeake Bay tributary rivers of Virginia since 1955, the striped bass spawning rivers since 1967 and the main stem Chesapeake Bay since 1988. These data are used to develop juvenile indices for several recreationally important species including spot, croaker, summer flounder, weakfish, black seabass and striped bass. The indices are important as both an index of recruitment success and effectiveness of management actions and are used in interstate Fishery Management Plans (FMP\u27s) by the Atlantic States Marine Fisheries Commission (ASMFC) and the Chesapeake Bay FMP\u27s developed by the Chesapeake Executive Committee. This focus on the Bay and its tributaries largely ignores the eastern shore of Virginia ( both the Bayside creeks and the seaside lagoons) and the ocean beaches. Preliminary late summer data (1993) as well as studies by Richards and Castagna (1970) and Norcross and Hata (1990) indicate that several recreationally and ecologically important species are more abundant here than within the bay and thus may be under represented in our historical collections. (...

Micro-bias and macro-performance

We use agent-based modeling to investigate the effect of conservatism and partisanship on the efficiency with which large populations solve the density classification task--a paradigmatic problem for information aggregation and consensus building. We find that conservative agents enhance the populations' ability to efficiently solve the density classification task despite large levels of noise in the system. In contrast, we find that the presence of even a small fraction of partisans holding the minority position will result in deadlock or a consensus on an incorrect answer. Our results provide a possible explanation for the emergence of conservatism and suggest that even low levels of partisanship can lead to significant social costs.Comment: 11 pages, 5 figure

Estimation of juvenile striped bass relative abundance in the Virginia portion of Chesapeake Bay, January 2002-December 2002 : annual progress report

The Virginia Institute of Marine Science (VlMS) has conducted a juvenile striped bass seine -ey from 1967 through 1973 and from 1980 through the present. The primary objective has been the monitoring of the relative amnal recruitment success ofjuvenile stripedbass in the spawning and nursery areas of Lower Chesapeake Bay. Initially (1967-1973), the survey was funded by the U.S. Fish and Wildlife Service and when reinstated in 1980 with funding from the National Marine Fisheries Service under the Emergency Striped Bass Study program. Commencing with the 1988 annual survey, support of the program has been jointly made through the Sportfish Restoration Program (Wallop-Breaux Act), administered through the U.S. Fish and Wildlife Service and the Viginia Marine Resources Commission. This report summarizes the results of the 2002 sampling period and compares these results with the previous wor

Estimation of juvenile striped bass relative abundance in the Virginia portion of Chesapeake Bay, January 2001-December 2001 : annual progress report

The Virginia Institute of Marine Science (VIMS) has conducted a juvenile striped bass seine survey from 1967 through 1973 and from 1980 through the present. The primary objective has been the monitoring of the relative annual recruitment success of juvenile striped bass in the spawning and nursery areas of Lower Chesapeake Bay. Initially (1967-1973), the survey was funded by the U.S. Fish and Wildlife Service and when reinstated in 1980 with funding from the National Marine Fisheries Service under the Emergency ~trfped Bass Study program. Commencing with the 1988 annual survey, support of the program has been jointly made through the Sportfish Restoration Program (Wallop-Breaux Act), administered through the U.S. Fish and Wildlife Service and the Virginia Marine Resources Commission. This report surmnarizes the results of the 2001 sampling period and compares these results with the previous work

Estimation of juvenile striped bass relative abundance in the Virginia portion of Chesapeake Bay, January 1993-December 1993 : annual progress report

The Virginia Institute of Marine Science (VIMS) has conducted a juvenile striped bass seine survey from 1967 through 1973 and from 1980 through the present. The primary objective has been the monitoring of the relative annual recruitment success of juvenile striped bass in the spawning and nursery areas of Lower Chesapeake Bay. The survey was funded in it\u27s initial period by the U.S. Fish and Wildlife Service and then reinstated in 1980 with funding from the National Marine Fisheries Service under the Emergency Striped Bass Study program. Commencing with the 1988 annual survey, support of the program has been made jointly through the Sportfish Restoration Program (Wallop-Breaux Act), administered through the U.S. Fish and Wildlife Service and the Virginia Marine Resources Commission. This report summarizes the results of the 1994 sampling period and compares theses results with the previous work

Estimation of juvenile striped bass relative abundance in the Virginia portion of Chesapeake Bay, January 1995-December 1995 : annual progress report

The Virginia Institute of Marine Science (VIMS) has conducted a juvenile striped bass seine survey from 1967 through 1973 and from 1980 through the present. The primary objective has been the monitoring of the relative annual recruitment success of juvenile striped bass in the spawning and to the nursery areas of Lower Chesapeake Bay. Initially (1967-1973), the survey was funded by the U.S. Fish and Wildlife Service and when reinstated in 1980 with funding from the National Marine Fisheries Service under the Emergency Striped Bass Study program. Commencing with the 1988 annual survey, support of the program has been jointly made through the Sportfish Restoration Program (Wallop-Breaux Act), administered through the U.S. Fish and Wildlife Service and the Virginia Marine Resources Commission. This report summarizes the results of the 1995 sampling period and compares these results with the previous work

Estimation of juvenile striped bass relative abundance in the Virginia portion of Chesapeake Bay, January 1996-December 1996 : annual progress report

The Virginia Institute of Marine Science (VIMS) has conducted a juvenile striped bass seine survey from 1967 through 1973 and from 1980 through the present. The primary objective has been the monitoring of the relative annual recruitment success of juvenile striped bass in the spawning and to the nursery areas of Lower Chesapeake Bay. Initially (1967-1973), the survey was funded by the U.S. Fish and Wildlife Service and when reinstated in 1980 with funding from the National Marine Fisheries Service under the Emergency Striped Bass Study program. Commencing with the 1988 annual survey, support of the program has been jointly made through the Sportfish Restoration Program (Wallop-Breaux Act), administered through the U.S. Fish and Wildlife Service and the Virginia Marine Resources Commission. This report summarizes the results of the 1996 sampling period and compares these results with the previous work

Estimation of juvenile striped bass relative abundance in the Virginia portion of Chesapeake Bay, January 1998-December 1998 : annual progress report

The Virginia Institute of Marine Science (VIMS) has conducted a juvenile striped bass seine survey from 1967 through 1973 and from 1980 through the present. The primary objective has been the monitoring of the relative annual recruitment success of juvenile striped bass in the spawning and to the nursery areas of Lower Chesapeake Bay. Initially (1967-1973), the survey was funded by the U.S. Fish and Wildlife Service and when reinstated in 1980 with funding from the National Marine Fisheries Service-under the Emergency Striped Bass Study program Commencing with the 1988 annual survey, support of the program has been jointly made through the Sportfish Restoration Program (Wallop-Breaux Act), administered through the U.S. Fish and Wildlife Service and the Virginia Marine Resources Commission. This report summarizes the results of the 1998 sampling period and compares these results with the previous work

Estimation of juvenile striped bass relative abundance in the Virginia portion of Chesapeake Bay, January 1999-December 1999 : annual progress report

The Virginia Institute of Marine Science (VIMS) has conducted a juvenile striped bass seine survey kom 1967 through 1973 and &om 1980 through the present. The primary objective has been the monitoring of the relative annual recruitment success of juvenile striped bass in the spawning and nursery areas of Lower Chesapeake Bay. Initially (1967-1973), the swey was funded by the U.S. Fish and Wildlife Service and when reinstated in 1980 with funding from the National Marine Fisheries Service under the Emergency Striped Bass Study program. Commencing with the 1988 annual survey, support of the program has been jointly made through the Sportfish Restoration Program (Wallop-Bream Act), administered through the U.S. Fish and Wildlife Service and the Virginia Marine Resources Commission. This report summarizes the results of the 1999 sampling period and compares these results with the previous work