返回Google圖書搜尋

North Sea Fish Stocks - Recent Changes and Their Causes

其他書名	A Symposium Held in Aarhus 9-12 July 1975
出版	Conseil international pour l'expoloration de la mer, 1978
URL	http://books.google.com.hk/books?id=8UQdAQAAIAAJ&hl=&source=gbs_api

註釋Contents: Introduction and historical background -- Map of the North Sea with ICES statistical division IVa, b, and c -- Long-term changes in landings of fish from the North Sea -- The industrial fisheries in the North Sea -- Changes in the Norwegian mixed fisheries in the North Sea -- Changes in cod stocks and cod fisheries in the North Sea -- Changes in the North Sea haddock and whiting -- On fluctuations in the haddock population of the North Sea -- Changes in plaice stocks and plaice fisheries in the North Sea -- The spawning of plaice (Pleuronectes platessa L.) in the southern North Sea and English Channel -- Changes in North Sea sole stocks (Solea solea (L.)) -- Long-term changes in North Sea herring stocks -- Variations in growth rate and maturity of herring in the northern North Sea in the years 1955-1973 -- The growth of herring in the northwestern North Sea -- Some comments on herring larval distribution and abundance in the North Sea -- Long-term variations in the Swedish herring fishery off Bohuslan and their relation to north Sea herring -- A century of observations on sprat in the Skagerrak and the Kattegat -- The effect of recent changes in the North Sea mackerel fishery on stock and yield -- Trends in Scottish research-vessel catches of various fish species in the North Sea, 1922-1971 -- Immigration of southern fish into the North Sea -- The German industrial fisheries in the north Sea and their by-catches -- Changes in the stock of brown shrimp (Crangon crangon L.) in the coastal area of the Netherlands -- The predator-prey relationship between fish populations and the stock of brown shrimp (Crangon crangon L.) in German coastal waters -- Non-commercial fish species in the German Bight: records of by-catches of the shrimp fishery -- On the nursery-aspects of the Waddensea for some commercial fish species and possible long-term changes -- Recent biological phenomena in the German Waddensea -- Changes in the seal populations of the north Sea -- A multispecies analysis of the effects of variations of effort upon stock composition of eleven North Sea fish species -- Competition and co-existence with particular reference to gadoid fish species -- On the disappearance of bluefin tuna in the North Sea and its ecological implications for herring and mackerel -- Long-term changes in the North Sea hydrography -- Long-term variations of temperature and salinity in the inner German Bight -- Long-term hydrographic variations off souther Norway -- The nutrient contents of North Sea water: changes in recent years, particularly in the Southern Bight -- Long-term observations on nutrient contents near Helgoland in relation to nutrient input of the River Elbe -- Variations in phytoplankton near Helgoland -- Variations in bacteria in the German Bight -- A model of the biological effects of eutrophication in the North Sea -- A method of predicting the biological effects of synthetic pollutants in the North Sea -- Continuous Plankton Records: large-scale changes in the abundance of phytoplankton in the North Sea from 1958 to 1973 -- Changes in the zooplankton of the North Sea, 1948 to 1973 -- The plankton in the northwestern North Sea, 1948 to 1974 -- The benthos of the western north Sea -- Changes of macrobenthos in a sublittoral sand area of the German Bight, 1967 to 1975 -- Macrobenthos investigation in the eastern part of the German Bight from 1950 to 1974 -- Synopsis of Symposium.