The materials on the retrospective and current catch of marine fish species in Far Eastern region are presented. In seas, from 3.0 to 3.4 million tons LMR captured, constituting more than 2/3 total Russian catch. 2019, commercial fishes, for which TAC is set, amounted 2.3 tons. structure dominated by walleye Pollock (75%), herring (11%), cod (6%), flounder (3 %), saffron (2.5%). non-quota 354.6...

A recent study showed that a critically endangered migratory predator species, the Balearic shearwater Puffinus mauretanicus, rapidly expanded northwards in northeast Atlantic waters after the mid-1990s. As a significant positive correlation was found between the long-term changes in the abundance of this seabird and sea temperature around the British Isles, it was hypothesized that the link be...

The exploitation of forage fish species can modify the functioning marine ecosystems potentially impacting population status predators. This may be case for western Mediterranean Sea, where a reduction in biomass two key pelagic (European anchovy Engraulis encrasicolus and European sardine Sardina pilchardus ) could produce change diet composition their main predators, which would consume alter...

Since 1981, the Benguela Ecology Programme has aimed at increasing ecological understanding of a large marine upwelling region of importance to fisheries. In an attempt to summarize results of this program, experts brought together both published and unpublished data at a workshop held in Cape Town in 1989. This was in an attempt to construct simple input-output carbon budgets of the Northern a...

The extraction of highly discriminant features is crucial for successful species identification of fish shoals if backscattered narrowband signals do indeed contain discriminant information. Four different methods of feature extraction are described and applied to the same data, providing new descriptors expected to improve species identification. Echograms, amplitude probability density functi...

The temporal and spatial distributions of sardine Sardinops sagax eggs and larvae off the oligotrophic southwestern coast of Australia were examined and related to gonadosomatic index, daily growth rates of larvae and regional biological oceanography. Seasonal environmental cycles were established from remotely sensed sea surface temperature and chlorophyll concentration, wind and sea surface h...

An electronic nose was developed and used as a rapid technique to classify the freshness of sardine samples according to the number of days spent under cold storage (4 ± 1°C, in air). The volatile compounds present in the headspace of weighted sardine samples were introduced into a sensor chamber and the response signals of the sensors were recorded as a function of time. Commercially available...

In many exploited marine fish species, older individuals within cohorts often have slower growth rates at age than their younger counterparts, a process generally attributed to fishing. However, environmental changes might also contribute the selective disappearance of faster growing because increasing constraints acting on in suboptimal environments. Using otoliths anchovy and sardine collecte...