The North Sea autumn spawning Herring (Clupea harengus L.) Spawning Component Abundance Index (SCAI)

The North Sea autumn-spawning herring (Clupea harengus) stock consists of a set of different spawning components. The dynamics of the entire stock have been well characterized, but although time-series of larval abundance indices are available for the individual components, study of the dynamics at the component level has historically been hampered by missing observations and high sampling noise. A simple state-space statistical model is developed that is robust to these problems, gives a good fit to the data, and proves capable of both handling and predicting missing observations well. Furthermore, the sum of the fitted abundance indices across all components proves an excellent proxy for the biomass of the total stock, even though the model utilizes information at the individual-component level. The Orkney-Shetland component appears to have recovered faster from historic depletion events than the other components, whereas the Downs component has been the slowest. These differences give rise to changes in stock composition, which are shown to vary widely within a relatively short time. The modelling framework provides a valuable tool for studying and monitoring the dynamics of the individual components of the North Sea herring stock.

General index to the published volumes of the Diplomatic correspondence and Foreign relations of the United States. 1861-1899.

Published in accordance with the Sundry civil act of June 6, 1900.

Index to subject bibliographies in library bulletins to December 31, 1897.

Mode of access: Internet.

Development, growth, and state of the atomic energy industry : hearings before the Joint Committee on Atomic Energy, Congress of the United States, Eighty-fifth Congress, first session ... /

Focuses on progress made in private industry.

Synopsis of House bills of the forty-second session of the Legislature of the State of Minnesota and Senate bills that reach the House, 1923 /

Topical index of House bills: p. [239]-274.

The laws and ordinances of the city of Cohoes : including the revised charter, acts of the legislature relating to the city of Cohoes, together with certain general statutes and parts of statutes of the state of New York, applicable to said city, besides other useful matter pertaining to its government /

Includes index.

A manual of statutory corporation law : classified corporation laws of all the states, containing a digest of the business corporation laws of every state and territory of the United States, arranged uniformly, with the enactments of 1906 interleaved /

Includes bibliographical references and index.

JTPA, state oversight.

Shipping list no.: 96-0005-S.

Constitutional reason of state : the survival of the constitutional order /

Includes bibliographical references and index.

Development of a wet weather safety index. Final report.

Texas State Department of Highways and Public Transportation, Austin

Church and state : a historical handbook /

Includes index.

Collections of the State historical society of Wisconsin.

After 1855 the society's annual reports were included in its Proceedings.

Civil procedure reports : containing cases under the Code of civil procedure and the general civil practice of the State of New York.

Reports cover 1881-1907.

An historical review of waterways and canal construction in New York state,

Includes index.

State antitrust laws /

Includes bibliographical references and index.