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Full-Text Articles in Marine Biology
Sympatric Otariids Increase Trophic Segregation In Response To Warming Ocean Conditions In Peruvian Humboldt Current System, Susana Cardenas-Alayza, Michael Adkesson, Mickie Rae Edwards, Amy C. Hirons, Dimitri Gutierrez, Yann Tremblay
Sympatric Otariids Increase Trophic Segregation In Response To Warming Ocean Conditions In Peruvian Humboldt Current System, Susana Cardenas-Alayza, Michael Adkesson, Mickie Rae Edwards, Amy C. Hirons, Dimitri Gutierrez, Yann Tremblay
Marine & Environmental Sciences Faculty Articles
Determining trophic habits of predator communities is essential to measure interspecific interactions and response to environmental fluctuations. South American fur seals, Arctocephalus australis (SAFS) and sea lions Otaria byronia (SASL), coexist along the coasts of Peru. Recently, ocean warming events (2014–2017) that can decrease and impoverish prey biomass have occurred in the Peruvian Humboldt Current System. In this context, our aim was to assess the effect of warming events on long-term inter- and intra-specific niche segregation. We collected whisker from SAFS (55 females and 21 males) and SASL (14 females and 22 males) in Punta San Juan, Peru. We used …
Polychlorinated Organic Contaminants In Baleen From North Pacific Ocean Whales, Briana R. Coulter
Polychlorinated Organic Contaminants In Baleen From North Pacific Ocean Whales, Briana R. Coulter
All HCAS Student Capstones, Theses, and Dissertations
Persistent organic pollutants (POP) have been detected and analyzed in various baleen whale tissues (blubber, muscles, liver, etc.) This study concentrated on detecting 7 polychlorinated biphenyls (PCB) and 14 organochlorine pesticides from baleen, a baleen whale tissue never before analyzed for POPs. These data were used to investigate temporal and geographic trends by sampling at every 1 cm interval along the length of the baleen plate. Four species of baleen whales stranded in the North Pacific Ocean were included in this study: gray (n=2), humpback (n=2), minke (n=1), and blue (n=1) whales. Organic contaminant concentrations were analyzed with respect to …