This dataset contains physical oceanography and fish abundance data collected by CTD, surface trawl, and tagged fish from the research vessel Hokko Maru in the Central Bering Sea. This dataset is U.S. State Department MSR RATS U2024-001 as part of the World Data Service for Oceanography. Data are in XLSX format, cruise report is in DOC.

This dataset contains the final cruise report for visual whale survey from research vessel Yushin-Maru No. 2. in the North Pacific from 2023-07-28 to 2023-10-05 during the 2023 International Whaling Commission - Pacific Ocean Whale and Ecosystem Research Programme (IWC-POWER). IWC-POWER cruises in the North Pacific follow the series of IWC/IDCR-SOWER (Southern Ocean Whale and Ecosystem Research) cruises that were conducted in the Antarctic since 1978. The 14th annual IWC-POWER cruise was conducted between 28 July and 5 October 2023 in the eastern North Pacific (between 40°00’N and US EEZ boundary, 180°00’W and 155°00’W, comprised entirely of the high seas). This area was surveyed in 2010 and 2011, but the survey was conducted from mid-July to mid-August while the 2023 survey will be conducted from mid-August to mid-September. The survey was conducted aboard the Japanese research vessel Yushin-Maru No. 2. The cruise was organized as a joint project between the IWC and Japan. The cruise plan was endorsed at the 69A IWC/Scientific Committee (IWC/SC) meeting. Researchers from the IWC, the U.S., and Japan participated in the survey. The cruise had four main objectives: (a) obtain information for the in-depth assessments of sei, humpback, gray and sperm whales in terms of abundance, distribution and stock structure; (b) obtain information on the critically endangered North Pacific right whale population in the Pacific; (c) obtain baseline information on distribution, stock structure and abundance for a poorly known area for several large whale species/populations, including those that were known to have been depleted in the past but whose status is unclear (e.g., blue and fin whales); (d) obtain essential information for the development of the medium-long term international programme in the North Pacific in order to meet the Commission’s long-term objectives.. At the pre-cruise meetings in Shiogama and Dutch Harbor, the crew of the vessel and international researchers agreed on the procedures and objectives of this survey. The survey was conducted using methods based on the guidelines of the IWC/SC. Survey trackline coverage in the research area was 84.6 % (1,476.57 n.miles of a planned distance of 1,745.00 n.miles), with a total of 742.29 n.miles in Passing with abeam closing mode (NSP) and 734.18 n.miles in Independent Observer passing mode (IO). Additionally, 172.80 n.miles were surveyed during transit between Japan to and from Dutch Harbor, and Dutch Harbor to and from the research area. During the entire the cruise, sightings of: North Pacific right (4 schools / 5 individual), blue (9/9), fin (116/193), sei (66/85), common minke (2/2), humpback (1/1), sperm (25/26) and killer (7/16) whales. Blue, fin and sei whales were mainly distributed in the northern part of the research area. Fin whales were the most frequently sighted large whale species. Photo-identification data were collected for: 4 right, 7 blue, 30 fin and 9 sei whales. These data are preliminary, pending further processing and photo-identification confirmation. A total of 19 biopsy (skin and sometimes blubber) samples were collected from 4 blue, 8 fin and 7 sei whales. The Estimated Angle and Distance Training Exercise and Experiment were completed. The acoustic survey was included for the 5th time to acoustically monitor for the presence of marine mammals, with particular importance for detecting and locating North Pacific right whales. A total of 146 sonobuoys were deployed, of which 143 were successful, for a total of over 538.28 monitoring hours. Species detected include sperm whales (107 buoys, 74.8%), fin whales (81, 56.6%), killer whales (53, 37.1%), blue whales (33, 23.1%), common dolphins (10, 6.9%), humpback whales (8, 5.6%), North Pacific right whales (7, 4.9%), Pacific white-sided dolphins (6, 4.2%), and sei whales (4, 2.8%). Other signals detected include northern right whale dolphins (2, 1.4%), Baird’s beaked whales (1, 0.7%), unidentified

The expedition by research vessel Ocean Starr on Aug. 31 and Sept. 01, 2012 had the objective to recover and re-deploy a number of moored platforms from the CORC project (Consortium on the Ocean's Role in Climate) off southern California. To calibrate and validate the mooring data, three CTD casts and a small number of salinity water samples were collected; these data are reported here. The CTD salinity data have been quality-controlled and adjusted using the water sample data. The raw CTD data files are included for completeness as well.

As part of an inter-agency agreement between the National Marine Mammal Laboratory and the Bureau of Ocean Energy Management, aerial surveys of the North Aleutian Basin and southeastern Bering Sea were conducted from 24 July to 28 August 2008 and 14 July to 25 August 2009. Both surveys were conducted from an Aerocommander 690A. In 2008, the survey design consisted of broadscale transects covering the waters from Bristol Bay west to the Pribilof Islands. The survey covered a total of 5,821 nmi (10,782 km) on-effort, 471 nmi (872 km) transit and crosslegs, and off-effort accounted for 837 nmi (1551 km). There were a total of 263 sightings (755 individuals) of 11 confirmed marine mammals species; these included right, humpback, fin and sei whales as well as killer whales, Dall's and harbor porpoises, Pacific white-sided dolphins, fur seals, sea lions, walrus and sea otters. There were 10 sightings (12 individuals) of right whales recorded on 3 separate days. Six unique individuals were photo-identified and 4 matches were made between the aerial and vessel surveys. In 2009, the survey consisted of finescale transects over the critical habitat and an acoustic component was added to complement the visual survey. The survey covered a total of 2,590 nmi (4,800 km) on effort. There were a total of 124 sightings (213 individuals) of 3 confirmed marine mammal species, right, humpback and fin whales. There were 23 sightings (28 individuals) of right whales documented on 9 separate days. Seven unique individuals were photo-identified. Three matches were made to the 2008 survey. In all, the 2 year survey documented 10 unique North Pacific right whales.

This dataset contains water temperature, salinity, zooplankton, and fish survey (salmonids and other pelagic fishes) data taken by CTD, nets, and trawls from research vessel Hokko Maru in the Bering Sea. This cruise is U.S. State Department MSR U2021-002 as part of the World Data Service for Oceanography. Data are in XLSX format.

The present report is an extension of earlier data reports embodying data related to high sea salmon fishing by Canadian exploratory fishing vessels. The catches were made by gillnetting with nets of various mesh size at the positions shown in Figure 1. The period of fishing was from May 10 1958 to August 24 1958. The catches were quick-frozen and held in cold storage boxes for examination at the base laboratory. In this report the length, weight, sex, and maturity, and stomach contents are tabulated for each of the fresh-thawed fish. Also, included are data for each fishing position showing gear fished, depth of fishing, surface temperature and salinity, and oceanographic domain.