A description of the broad strategies to be taken to address threats to the species’ survival and recovery, as well as research and management approaches needed to meet the threat-reduction objective, are included in section 7. Reliable, rigorous estimates of sea turtle bycatch depend on at-sea monitoring of fishing activity. 2016). Recovery strategies are to be prepared in cooperation and consultation with other jurisdictions, organizations, affected parties and others as outlined in SARA section 39. Dutton, T. Eguchi, S.P. In 2012, it became mandatory for the Atlantic Canadian pelagic longline fleet to use corrodible circle hooks, which have been shown to reduce the rate of bycatch and post-release mortality in Loggerhead Sea Turtles (for example, Watson et al. Loggerhead sea turtles (Caretta caretta) nest on 394 beaches in the Wider Caribbean Region(*), the majority (71%) of which host fewer than 25 nests per year. 2016), including but not limited to the following: As generalist feeders that often forage in oceanic convergence zones, fronts, and eddies, Loggerhead Sea Turtles may be especially susceptible to ingesting marine debris (for example, NMFS and USFWS 2008; Nelms 2016). First photographic evidence of a loggerhead sea turtle (. This is the preferred approach to help guide, and gauge the success of, recovery measures undertaken to benefit the species. There is currently no population estimate for the Northwest Atlantic Ocean DPS. Table 5 describes the broad strategies to address identified threats to the Loggerhead Sea Turtle and the research and management approaches needed to meet the objective identified in section 6. Four sizes of dots are used to represent the annual number of nests at each location for the years 2001 to 2008. Loggerhead Sea Turtles appear to prefer sea surface temperatures >20°C (Brazner and McMillan 2008; Carruthers and Neis 2011). Finlayson, K.A., F.D.L. Predicting the impacts of climate change on a globally distributed species: the case of the loggerhead turtle. Sci. Canada has in the past participated in meetings of the Inter-American Convention for the Protection and Conservation of Sea Turtles (IAC), an agreement between 15 member countries in the western hemisphere. 1. 2017b. The smallest dot is used to symbolize 1 to 100 nests per year and the largest dot is used to symbolize 10,001 to 100,000 nests per year. In their study of free-swimming Loggerhead Sea Turtles, DeRuiter and Larbi Doukara (2012) observed startle responses or avoidance behaviours in the majority of turtles exposed to seismic airgun arrays. Nine Distinct Population Segments (DPSs) have been identified globally. These data informed the endangered status assessment by COSEWIC (2010), which cited an estimated population decline of greater than 50% over three generations (100 years). This case shows that global assessments for wide-ranging species such as sea turtles can be misleading because the decline or even extinction of one subpopulation does not necessarily imply a global-scale species extinction risk.
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