Navegando por Autor "Miller, Philip"

Agora exibindo 1 - 2 de 2

Artigo
Intentional killing and extensive aggressive handling of albatrosses and petrels at sea in the southwestern Atlantic Ocean
(Biological Conservation, 2020) Dimas, Gianuca; Bugoni, Leandro; Jiménez, Sebastián; Daudt, Nicholas W.; Miller, Philip; Canani, Gabriel; Silva-Costa, Augusto; Faria, Fernando A.; Bastida, Julian; Pon, Juan Pablo Seco; Yates, Oli; Serafini, Patrícia P.; Bond, Alexander L.
Large Procellariiformes (albatrosses and petrels) constitute a highly threatened group of birds, for which bycatch in fisheries is the most prevalent threat. At-sea intentional killing and post-capture, handling-related injuries, remain poorly understood menaces. Here, we report fishermen off southern Brazil trying to reduce bait depredation in pole-and-line and handlining fisheries by hitting birds with a metal piece attached to a pole-and-line on four occasions. Fishermen also mutilated or killed birds caught alive on the lines (aggressive handling). In addition, we present a compilation of records of Procellariiformes with bill mutilations across the southwest Atlantic Ocean. Related to the intentional killing events, 16 birds of four species (two globally threatened) were recorded dead (n = 13) or injured (n = 3) with head trauma, broken limbs, wounds or bill mutilation. Observations spanning 1999–2019 across the waters of Brazil, Uruguay and Argentina totalize 46 Procellariiformes of eight species (four globally threatened) recorded with bill mutilations (29 alive and 17 dead). Mutilations were likely caused by aggressive handling of birds caught alive, potentially in Brazilian hook-and-line fisheries or in demersal and pelagic longline fisheries across the southwest Atlantic. Observations of deliberate killing from multiple vessels and the recurrent records of mutilated birds suggest those practices represent pervasive but largely undocumented threats to seabirds and could complicate the detection of fishery-related population effects. Coordinated actions by international bodies and national authorities are urgently needed to address this threat, including increasing at-sea observation, enforcement actions and campaigns targeting better handling practices among fishermen.
Artigo
MANAGEMENT UNITS: CHALLENGES TO PROMOTE UNDERSTANDING AND CONSERVATION OF MARINE TURTLES IN OCEANIC AREAS
(2015) Sales, G.; Britto, M.; Fiedler, F.N.; Giffoni, B.; Domingo, A.; Leite, N.; Miller, Philip
This document presents a discussion and some recommendations with regards to appropriate management units to promote the conservation of marine turtles in oceanic areas used by tuna longline fisheries under ICCAT. We comment on the utility of using Regional Management Units (RMUs) for marine turtles as proposed by Wallace et al. (2010). Per Wallace (2010 et al), RMUs refer to geographically explicit population segments, based on biogeographical data (e.g. nesting sites, genetics, telemetry) that can be applied to regionally appropriate management issues. RMUs are not intended to represent complete geographic distributions of species on global or regional scales, but rather distributions that are anchored to landmasses by known nesting site(s) and/or genetic stock origins and defined by biogeographical information. While RMUs are important to contribute to our understanding of key aspects of marine turtle populations, this analysis indicates that marine turtle RMUs do not cover all requirements to define management units to the ICCAT fisheries. Considering that the longline fishing are compose of different kind of fisheries, using distinct fishery strategies and operate in distinct at-sea regions, these fisheries interact with marine turtle mixed stocks in foraging and developmental areas. We recommend ICCAT adopt the “Fishery”as the principal concept to define Management Unit (rather than sea turtle RMUs) in order to understand and reduce marine turtle interactions in the ICCAT fisheries