데이터셋 상세
미국
1MF09 SeaCAT Data
We conducted fieldwork to continue a study designed to compare age-0 pollock and their prey field among three separate pollock nursery regions in the western Gulf of Alaska (GOA). Data resulting from the work will also be used to extend a 5-yr time series (2000, 2001, 2003, 2005, 2007) of age-0 walleye pollock abundance in one of the nurseries. This work is needed to more rigorously evaluate suitability of three important pollock nurseries, and to evaluate age-0 abundance in the western GOA during late summer (September) as a recruitment predictor.
데이터 정보
연관 데이터
1FA05 SeaCAT Data
공공데이터포털
We will conduct an ichthyoplankton survey in the Gulf of Alaska in the vicinity of Kodiak Island, Alaska. This area is a known nursery ground for a variety of species of fish - walleye pollock, Pacific cod, rock sole, and Pacific halibut. Work is needed to describe larval fish and zooplankton assemblages in summer, and to examine the movement of water and associated biota from the slope onto the shelf. We will also conduct some trawling to describe abundances of juvenile groundfishes and small forage fishes in selected canyons and in the vicinity of Kodiak Island. Six satellite-tracked drifters will be released to study current trajectories in the vicinity of Port Lock Bank. Conductivity, Temperature, and Depth profiler casts will be made to characterize water column properties, collect nutrient and chlorophyll information, and to use to evaluate the flow field.
7MF04 SeaCAT Data
공공데이터포털
We will be conducting an ichthyoplankton survey in the waters contiguous to Kodiak Island, Alaska. This work is needed to describe larval fish assemblages on the shelf and slope in late summer and early fall, and to study the transport and early life history of larval forage fishes (ex: capelin). Zooplankton data and data on physical characteristics of the water column will also be collected. Limited trawling activities for juvenile groundfishes (age-0 pollock) and adult forage fishes (capelin) will be conducted as well to study differences in production between offshore banks and troughs and nearshore Kodiak Island.
8MF05 SeaCAT Data
공공데이터포털
To recover and deploy several oceanographic moorings. To complete Conductivity, Temperature, and Depth (CTD) profiler casts, California Cooperative Oceanic Fisheries Investigation (CalCOFI) Vertical Egg Tow (CalVET) and Marine Assessment Monitoring and Prediction (MARMAP) Bongo tows near the mooring sites and along the 70-meter isobath in the Bering Sea.
7MF05 SeaCAT Data
공공데이터포털
The primary objective is to better understand geographic variation in the productivity of fishes in the western Gulf of Alaska (GOA). This cruise will focus on the geographic distribution and size of age-0 walleye pollock and other small pelagic fishes in relation to the zooplankton on which they feed, and physical oceanography.
5MF04 SeaCAT Data
공공데이터포털
The objectives of this cruise are to conduct an ichthyoplankton survey and process oriented studies in the region between Unimak Pass, the Shumagin Islands, and through Shelikof Strait to Kodiak Island, Alaska, so that we may estimate the abundance, transport, and factors influencing the survival of young walleye pollock larvae. We will also occupy stations on Line 8 to continue our 19 year time series of environmental and biological conditions in Shelikof Strait.
2MF05 SeaCAT Data
공공데이터포털
We will conduct an ichthyoplankton survey in the waters contiguous to Kodiak Island, Alaska. This work is needed to describe larval fish assemblages on the shelf and slope in winter, and to study the transport and early life history of larval fishes, particularly the feeding and zooplankton prey of capelin (Mallotus villosus) and Pacific sand lance (Ammodytes hexapterus). Data on physical characteristics of the water column will also be collected.
6MF05 SeaCAT Data
공공데이터포털
The objectives of this cruise are to conduct an ichthyoplankton survey and process oriented studies in the region between Unimak Pass, the Shumagin Islands, and through Shelikof Strait to Kodiak Island, Alaska, so that we may estimate the abundance, transport, and factors influencing the survival of young walleye pollock larvae. We will also occupy stations on Line 8 to continue our 20 year time series of environmental and biological conditions in Shelikof Strait.
2DY11 SeaCAT Data
공공데이터포털
The objectives of this cruise were to conduct an ichthyoplankton survey and process studies in the region between the Shumagin Islands and Shelikof Strait so that we could estimate the abundance, transport, and factors influencing the survival of young walleye pollock larvae. We also occupied six of the stations on Line 8 to continue our 26-year time series of environmental and biological conditions in Shelikof Strait. In addition to this sampling, stations selected from the main grid for the GOA-IERP research project were occupied to deploy the neuston gear to acquire larval fish of five target species (sablefish, walleye pollock, Pacific cod, arrowtooth flounder, and Pacific Ocean perch).
1DY10 SeaCAT Data
공공데이터포털
To recover and deploy surface and subsurface oceanographic instrumentation moorings. To complete conductivity, temperature and depth (CTD) profiler casts. To complete bongo and CalVET tows.
1AE10 SeaCAT Data
공공데이터포털
To recover and deploy surface and subsurface oceanographic instrumentation moorings at several locations in the Bering Sea. To complete CTD casts and plankton tows at sampling stations in and around the mooring locations and along the 70 meter isobath. To collect data on the physical, chemical and biological parameters at each sampling station.