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Images Of Sea Turtles

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Last Updated: 18 January 2022

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Seven different species of sea turtles grace our ocean waters, from shallow seagrass beds of Indian Ocean, to colorful reefs of Coral Triangle and sandy beaches of Eastern Pacific. While these highly migratory species periodically come ashore to either bask or nest, sea turtles spend bulk of their lives in ocean. Wwf's work on sea turtles focuses on five of those species: hawksbill, loggerhead, leatherback, and olive ridley. Over last 200 years, human activities have tipped scales against survival of these ancient mariners. Slaughter for their eggs, meat, skin, and shells, sea turtles suffer poaching and over - exploitation. They also face habitat destruction and accidental as bycatchin fishing gear. Climate change has impact on turtle nesting seats. It alters sand temperatures, which then affects sex of hatchlings. Nearly all species of sea turtle are now classified as with three of seven existing species being critically endanger. Wwf is committed to stopping decline of sea turtles and works for recovery of species. We work to secure environments in which both turtles and people depend upon them can survive. Sea turtles journey between land and sea and swim thousands of Ocean miles their long lifetimes. They wait decades until they can reproduce, returning to same beaches where they were born to lay their eggs. Females can lay hundreds of eggs in one nesting season, yet will yield hatchlings that survive their first year of life. Beyond these significant natural challenges, sea turtles multiple threats caused by humans, such as bycatch in commercial fishing gear, illegal trade, consumption, and climate change.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

Fundamental Link in Marine Ecosystems

Marine pollution can have serious impacts on both sea turtles and food they eat. New research suggests that disease now killing many sea turtles may be linked to pollution in oceans and in near - shore waters. When pollution enters water, it contaminates and kills aquatic plant and animal life that is often for sea turtles. Oil spills, urban runoff from fertilizers and petroleum all contribute to water pollution. Because ocean is so large, many incorrectly assume that pollutants will be diluted and disperse to safe levels, but in reality, toxins released from these pollutants become more concentrated as they break down in size. As result, these smaller, more toxic particles become food for many links in food chain, including sea turtles.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

Bycatch

Main Cause Of Decline Of Loggerhead Turtles, And Current Primary Threat To Global Populations Is Bycatch In Longlines, Gillnets, Trawls, Traps And Pots, And Dredges. Loggerheads can be hooked in mouth or another part of their body when trying to consume bait, entangled in gillnets or ropes, or caught in trawling or dredge. Longlines, gillnets, and trawls are responsible for majority of Sea Turtle bycatch events around world. Commercial longlines incidentally caught estimated 200 000 loggerhead Turtles in 2000. At same time, small - scale, coastal fisheries may have even larger impact, but incidents are not well record. In ONE study, researchers found that loggerheads were caught in very high numbers in gillnet and bottom - set longline in Baja California Sur, Mexico. There are several fishing modifications that have had varying degrees of success in reducing Sea Turtle bycatch. In hook and line Fisheries, circle hook has replaced traditional J - hooks, and has been shown to reduce capture and increase post - release survival. Turtle Excluder Devices have been successful in preventing capture of Turtles in trawls. Other devices and techniques include: changing configuration of gillnets, introducing bait species, adding chain mats, and putting in trap guards. Lewison, RL, Freeman, and LB Crowder. 2004. Quantifying effects of Fisheries on threatened impact of pelagic longlines on loggerhead and leatherback Sea Turtles. Ecology Letters 7: - 344. Peckham, SH, DM Diaz, G Ruiz, LB Crowder, and WJ Nichols. 2007. Small - scale fisheries jeopardizes endanger Pacific loggerheads. Plos ONE 2. Wallace, BP, RL Lewison, SL McDonald, RK CY Kot, S Kelez, RK Bjorkland, EM Finkbeiner, S Helmbrecht, and LB Crowder. 2010. Global patterns of Turtle bycatch. Conservation Letters 131 - 142.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

Sources

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

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