Fishing dynamics associated with periodically harvested marine closures

Catch Rates, Composition and Fish Size from Reefs Managed with Periodically-Harvested Closures

Periodically-harvested closures are commonly employed within co-management frameworks to help manage small-scale, multi-species fisheries in the Indo-Pacific. Despite their widespread use, the benefits of periodic harvesting strategies for multi-species fisheries have, to date, been largely untested. We examine catch and effort data from four periodically-harvested reef areas and 55 continuousl...

Effects of customary marine closures on fish behavior, spear-fishing success, and underwater visual surveys.

Customary management systems (i.e., management systems that limit the use of marine resources), such as rotational fisheries closures, can limit harvest of resources. Nevertheless, the explicit goals of customary management are often to influence fish behavior (in particular flight distance, i.e., distance at which an organism begins to flee an approaching threat), rather than fish abundance. W...

Molecular fishing: marine oligosaccharides

*Correspondence: Antonio Trincone, Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, I-80078 Pozzuoli, Napoli, Italy e-mail: [email protected]; [email protected] It is difficult to overvalue the importance of polysaccharides for the great number of applicative fields in which they appeared. Oligosaccharides are relatively short compo...

Fishing-induced life-history changes degrade and destabilize harvested ecosystems

Fishing through marine food webs.

A recurring pattern of declining mean trophic level of fisheries landings, termed "fishing down the food web," is thought to be indicative of the serial replacement of high-trophic-level fisheries with less valuable, low-trophic-level fisheries as the former become depleted to economic extinction. An alternative to this view, that declining mean trophic levels indicate the serial addition of lo...