In order to make researches on the effect of exploitation upon fish populations, six populations of guppy were maintained during a period of 331 weeks under conditions of space, light, temperature, pH, and food controlled as much as possible. The six populations were di...

In Recirculating Aquaculture Systems (RAS) various chemical compounds (mainly nitrates and organic carbon) accumulate in the rearing water. These chemical substrata regulate the ecophysiology of the bacterial communities of the biofilter and have an impact on its nitrif...

Publisher Summary The term “pigments from aquatic species” encompasses all the compounds that are naturally present in aquatic animals, plants and algae, and impart a plethora of colors to these species. These colors may be bright yellow, red or orange as found in the f...

Situated in the heart of the bay of Biscay, La Rochelle, right from its foundation, at the beginning of the XIIth century, was a community of fishermen. It then became one of the most dynamic cities in western France. In 1890 the commercial port moved to a new site, lib...

THE northern swallowtail shiner, Notropis procne procne (Cope), is a small species that apparently reaches its northern limit in Catherine Creek, the inlet of Seneca Lake, Lake Ontario drainage, New York. Its presence here has been attributed by Greeley (1928: 98) to a ...

<jats:p>Co-management of common property aquatic habitats are increasingly implemented with a view to increasing fish production, ensuring fishers’ rights and to conserve biodiversity. This study investigates the current status and identifies barriers to fisheries manag...

Quantative estimates of abundance of anadromous Kamchatka steelhead Parasalmo mykiss in the period of its maximum spawning migration in the shallow Utkholok River by the instrumental method using Didson dual-frequency identification sonar are presented. Equipment and me...

From March 1998 to February 1999, upstream fish passage was continuously monitored by video tape analysis at the fish lift Touvedo Dam on the Lima River, northern Portugal. A total of 1194 individuals from seven species were transferred by the lift. Cyprinids were the d...

We surveyed springtime biomass and abundance of the >20 nm microprotozoa in surface waters of the SE Bering Sea and Shelikof Strait, Alaska. This study was part of the Fisheries Ocean- ography Coordinated Investigations (FOCI) program examining processes which affect th...

McClelland, G., Misra, R. K., and Martell, D. J. 2000. Spatial and temporal distributions of larval sealworm (Pseudoterranova decipiens, Nematoda: Anisakinae), in Hippoglossoides platessoides (Pleuronectidae) in eastern Canada from 1980 to 1990. – ICES Journal of Marine...

Oceanographic features and physical processes in the ocean can create regions where prey, and therefore predators, may accumulate. Beluga whales Delphinapterus leucas are the most numerous cetacean in the Arctic. In the Alaskan Beaufort Sea, they prefer continental slop...

Funding was provided by the Danish Rod and Net Fish License Funds to HB, the Deutsche Bundesstiftung Umwelt (DBU, No AZ 20007/924) through a scholarship to TK, through the project Adaptfish by the Gottfried-Wilhelm-Leibniz- Community to RA (www.adaptfish.igb-berlin.de),...

Data on energy requirements, diet composition, and stock size were combined to estimate the consumption of various prey species by minke whales ( Balaenoptera acutorostrata ) in Northeast Atlantic waters. In the period 1992-1995, the stock of 85,000 minke whales appeare...

The bighead carp (Hypophthalmichthys nobilis) is one of the most commercially important freshwater fish species in China, but their abundance has declined considerably in recent decades, partly due to river regulation. In other countries it is invasive, posing an ecolog...

Reliable population estimates are fundamental to the conservation of endangered species. We evaluate here the use of photo-identification (photo-ID) and mark-recapture techniques for estimating the population size of the endangered Saimaa ringed seal (Phoca hispida saim...

Session : Nutrition et qualité; Evolution de la qualité de truites arc-en-ciel (Oncorhynchus mykiss) apres la ponte : effet de l’élevagebiologique versus conventionnel et comparaison avec des truites triploïdes. 6. Journées de la Recherche Filière Piscicole