Effects of fishing gear on bottlenose dolphins (Tursiops truncatus) in the Indian River Lagoon system, Florida

Short Note: Depredation of a Sport Fishing Tournament by Rough-Toothed Dolphins (Steno bredanensis) off Angola

“…However, regular depredation of several recreational hook and line fisheries by bottlenose dolphins (Tursiops truncatus) has been documented in Florida (Zollett & Read, 2006;Powell & Wells, 2011;Stolen et al, 2013) and may be increasing due to growing competition for resources between anglers and dolphins (Powell & Wells, 2011).…”

“…Cetaceans depredating commercial fisheries are at risk of being caught in fishing gear as non-target bycatch and injured or killed (Read, 2008;Hamer et al, 2012). Depredation of various recreational fisheries in Florida by bottlenose dolphins has resulted in severe line entanglement (causing emaciation and mortality) and ingestion of gear, including hooks, portions of monofilament line, metal sinkers, swivels, and lures (Zollett & Read, 2006;Stolen et al, 2013). Gear that becomes lodged in the mouth, throat, or stomach can lead to internal injuries, infection, starvation, and potentially death (Gorzelany, 1998;Powell & Wells, 2011;Stolen et al, 2013).…”

“…Depredation of various recreational fisheries in Florida by bottlenose dolphins has resulted in severe line entanglement (causing emaciation and mortality) and ingestion of gear, including hooks, portions of monofilament line, metal sinkers, swivels, and lures (Zollett & Read, 2006;Stolen et al, 2013). Gear that becomes lodged in the mouth, throat, or stomach can lead to internal injuries, infection, starvation, and potentially death (Gorzelany, 1998;Powell & Wells, 2011;Stolen et al, 2013). Some bottlenose dolphins interacting with (i.e., depredating or being fed by) recreational or commercial fisheries specifically select habitat where there are concentrations of boaters or anglers (Finn et al, 2008;Powell & Wells, 2011), thus, also increasing their exposure to accidental propeller strike.…”

Identifying critical areas to reduce bycatch of coastal common bottlenose dolphins Tursiops truncatus in artisanal fisheries of the subtropical western South Atlantic

“…In recent years there have been increased efforts to investigate the impact of fisheries on cetaceans and how to mitigate it (e.g. Brown et al 2013, Stolen et al 2013, Waples et al 2013. Understanding distribution patterns of dolphins threatened by human activities can be of particular use in informing decision makers about appropriate actions for their protection.…”

An Overview of Increasing Incidents of Bottlenose Dolphin Harassment in the Gulf of Mexico and Possible Solutions

“…Depredation of both commercial and recreational fisheries is a growing problem globally (Noke and Odell, 2002;Brotons et al, 2008;Powell and Wells, 2011). In addition, activities that bring dolphins into close proximity with fishing gear have the potential to seriously injure or kill the animals through ingestion, entanglement, or even vessel strikes (Zollett and Read, 2006;Read, 2008;Wells et al, 2008;Barco et al, 2010;Powell and Wells, 2011;Stolen et al, 2013). As more people locate to coastal areas and participate in recreational activities, the chances for close encounters increase, making local populations susceptible to disturbance, harassment, or direct attack (Samuels and Bejder, 2004;Mattson et al, 2005;Cunningham-Smith et al, 2006;Zollett and Read, 2006).…”