منابع مشابه
Changes in the demersal fish assemblages of British coastal waters during the 20th century
Catches of demersal fish from research vessel surveys in three areas around the British Isles from 1901 to 1907 were compared with survey catches in the same areas from 1989 to 1997. Mesh size and other characteristics of the trawls used suggested that some of these data were comparable, and could be used to describe changes in demersal fish assemblages over the last 80 years. In Start Bay (NW ...
متن کاملDistribution and abundance of marine mammals in the coastal waters of British Columbia, Canada
Information on animal distribution and abundance is integral to wildlife conservation and management. However abundance estimates have not been available for many cetacean species inhabiting the coastal waters of Canada’s Pacific coast, including those species that were heavily depleted by commercial whaling. Systematic sightings surveys were conducted in the inshore coastal waters of the Insid...
متن کاملOptical Closure in Coastal Waters
Our scientific objectives encompass both empirical and theoretical investigations. Empirical objectives are: 1) develop new instruments and methods for measuring ocean-optical properties, 2) conduct systematic coastal ocean measurements for testing closure and for characterizing optical properties and the processes related to their changes, and 3) perform laboratory experiments to investigate o...
متن کاملWater Quality in Coastal Waters
The aim of this work is to introduce the potential of satellite-based remote sensing data to agencies responsible for monitoring and managing water quality in the coastal zone of Western Australia. There exists a knowledge and/or expertise gap between satellite data providers and potential end users. This project aims to close the gap by developing a fundamental management tool that will be geo...
متن کاملEnrichment of Omnivorous Cercozoan Nanoflagellates from Coastal Baltic Sea Waters
Free-living nano-sized flagellates are important bacterivores in aquatic habitats. However, some slightly larger forms can also be omnivorous, i.e., forage upon both bacterial and eukaryotic resources. This hitherto largely ignored feeding mode may have pronounced implications for the interpretation of experiments about protistan bacterivory. We followed the response of an uncultured group of o...
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ژورنال
عنوان ژورنال: Nature
سال: 1963
ISSN: 0028-0836,1476-4687
DOI: 10.1038/197616a0