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The Iberian orca subpopulation lives in the coastal waters of the Iberian Peninsula and is genetically distinct from other orca populations in the Northeast Atlantic. [1] The orcas follow the seasonal migration of Atlantic bluefin tuna ( Thunnus thynnus ), their primary food source, gathering in the early spring in the Strait of Gibraltar .
The threats to the ecosystem of the Bar Reef were identified as over-exploitation of fish resources (there is an observable decline in the number of fish), unsuitable fishing methods (such as deep purse seining, which damage the coral and deplete fish resources) and pollution from human activities (prawn farms and agriculture).
In 2000, only 25% of the households in Sri Lanka got their water through pipes. Even the water that does come through the pipe from local suppliers is not monitored efficiently. This is why a part of the population does not get clean drinking water. [2] Sri Lanka's wastewater management requires a lot of work.
An orca pod in the Pacific Ocean off the coast of Mexico has devised a cunning strategy to hunt and kill whale sharks — the world’s largest fish that can grow up to 18 meters (60 feet) in ...
The trainer tried to regain control by climbing on the orca's back, but was thrown off. He eventually managed to get to the edge and climb out, seemingly unhurt. [75] In the spring of 2009, a 5-year-old female orca Skyla turned on an unidentified trainer while performing in one of Loro Parque Tenerife's daily shows.
Several bottlenose dolphins in the Gulf of Mexico were found to have traces of fentanyl in their system, shocking scientists and bringing in a new set of questions in the ongoing drug epidemic.
Through surveillance, overfishing by authorized fishers and poaching by unauthorized fishers can be detected. Many systems are involved in the technical process of surveillance. Radar, including coastal, airborne, and spaceborne systems, may be intended for national security or law enforcement, but can simultaneously provide information to ...
The canal transports ships through the Gatun Lake, some 26 meters (85 ft) above sea level, via a series of interconnecting locks. Each ship's transit requires some 200 million liters (53 million ...