Adult returns to many Atlantic salmon wild and hatchery stocks of the North Atlantic have
declined or collapsed since 1985. Enhancement, commercial fishery closures, and angling …

Small pelagic fish (SPF) play extremely important ecological roles in marine ecosystems,
form some of the most economically valuable fisheries resources, and play a vital role in …

Overfishing has caused dramatic changes in structures of exploited populations as well as
ecosystems. In this article, we focus on fishing effects on age (size) and spatial structures of …

Marine biodiversity worldwide is under increasing threat, primarily as a result of over-
harvesting, pollution and climate change. Chondrichthyan fishes (sharks, rays and …

Probabilistic maturation reaction norms (PMRNs) are emerging as a flexible and general
tool for characterizing phenotypic plasticity in maturation schedules. Describing an …

Ecosystems are not closed, but receive resource subsidies from other ecosystems. Energy,
material and organisms are moved between systems by physical vectors, but migrating …

We investigate spatial and temporal variations in sardine maturation patterns and discuss
the implications for stock structure, using recent samples collected opportunistically across …

The stock of Norwegian spring-spawning herring Clupea harengus collapsed to a state of
commercial extinction in the 1960s, probably due to both overexploitation and unfavourable …

Piscimetrics deals with software implementation of experimental design, second-generation
artificial intelligence tools, viz. Neural Nets (NNs), genetic algorithms, Fuzzy Logic, Expert …

European hake (Merluccius merluccius) female size at maturity is estimated on an annual
basis for Bay of Biscay and Galician coast, which are parts of the distribution of the Northern …