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The impact of Medina panels attached to tuna purse seine nets operating in the US fishery was investigating for their effect on porpoise mortality. Medina panels are reduced mesh size netting hung from 2-inch mesh webbing on the purse seine. The authors took measurements of penetration of porpoise snouts and flippers through mesh openings of 2, 1 7/8, 1 1/2 and 1 inch to determine the potential reduction in porpoise entanglements. Even the smallest porpoise could not fit it's snout through the 1 inch panel, even with it's mouth closed.

Observer data collected between 2011 and 2014 from the Fijian longline fleet was analysed to characterize the shark and ray catch composition. In addition, factors that could significantly explain standardized catch rates were identified. Catch data were fitted to a generalized linear model to identify significant explanatory variables. The nominal catch rate for elasmobranchs was 0.610 per 1000 hooks. Twenty seven species of elasmobranchs were observed captured. Of the elasmobranchs captured, 48% are categorized as Threatened by the IUCN Red List.

Short term behavioral responses of Chilean dolphins (Cephalorhynchus eutropia) to acoustic alarms, or pingers, were tested using exposure-control experiments (pinger on/off treatments). Field trials were conducted in the south-eastern Chiloe Archipelago  between February and April of 2013. BananaBP154 pingers (FishTek Marine) were used for the tests. Static passive acoustic monitoring (PAM) techniques were used at two sites (Bahia Yaldad and Canal San Pedro) and land based observations, which included theodolite tracking, were also conducted at Bahia Yaldad.

Fisheries observer data from six gear types operating in the US Northeast and mid-Atlantic were analysed for seabird interactions. Between 1996 and 2014 an estimated 48,821 seabirds interacted with commercial fishing gear. This resulted in an estimated average interaction rate of 2,570 seabirds per year. The majority of interactions occurred in gillnet fisheries and involved shearwaters/fulmars. A comparison with previous work in the region was also conducted.

Bycatch interactions with deep-sea elasmobranchs are increasingly common and can lead to dramatic declines in abundance over short time scales. Sharks hooked in the deep sea could face a higher likelihood of severe physiological disturbance, at-vessel mortality, and post-release mortality (PRM) than their shallower counterparts.