The thread herring Opisthonema oglinum (Lesueur, 1818) is a small pelagic fish distributed in the western margin of Atlantic Ocean from United States to Argentina. It target species for diverse commercial fisheries, including Brazilian industrial purse seine fleets that operate Southeastern Bight. To investigate geographic variation populations this fishing ground, sagittal otoliths were collec...

The striped dolphin, Stenella coeruleoalba, is one of the most abundant cetacean species off Western Iberian coast, however, studies on regarding biology, ecology, threats or conservation efforts are lacking. This study investigates stranding patterns (years 1981–2014) and diet (2002–2014) dolphins (Stenella coeruleoalba) Portuguese mainland coast. Stranded animals were sampled along whole coas...

© The Ecological Society of America www.frontiersinecology.org G fisheries provide approximately 16% of all protein consumed by humans, employ about 200 million people, and are valued at US$82 billion (Botsford et al. 1997; FAO Fisheries Department 2004). Eight percent, or 7.2 million tons, of the global catch is comprised of non-target species and discarded, and this mortality is having major ...

Pelagic longline gear had several independent evolutions, but the most widespread form appears to have been originally developed by the Japanese as early as the mid-19th century. Technological developments such as polyamide monofilament line and modern fishing vessel construction have resulted in the evolution and expansion of this gear type as the primary worldwide method of commercially harve...

Pacific salmon are among the dominant fish in the epipelagic layer of the subarctic Pacific Ocean and are considered the principle consumers of forage resources. In recent years (1990s and 2000s) most Pacific salmon stocks have increased two-fold in abundance. Many researchers consider that such high abundance may increase interspecific competition for food and influence density-dependent facto...

Worldwide fisheries generate large volumes of fishery waste and it is often assumed that this additional food is beneficial to populations of marine top-predators. We challenge this concept via a detailed study of foraging Cape gannets Morus capensis and of their feeding environment in the Benguela upwelling zone. The natural prey of Cape gannets (pelagic fishes) is depleted and birds now feed ...

Fisheries management is typically characterized by multiple and often con ̄icting objectives. The Western Paci®c Regional Fishery Management Council (WPRFMC) is the authority for managing exclusive economic zone (EEZ) ®sheries in Hawaii. The array of multiple objectives coupled with the heterogeneous composition of WPRFMC creates a complex decisionmaking environment for ®shery management in Hawa...

The hunting strategies of pelagic thresher sharks (Alopias pelagicus) were investigated at Pescador Island in the Philippines. It has long been suspected that thresher sharks hunt with their scythe-like tails but the kinematics associated with the behaviour in the wild are poorly understood. From 61 observations recorded by handheld underwater video camera between June and October 2010, 25 thre...