نتایج جستجو برای: sea animals

تعداد نتایج: 340414  

2013
Jonathan Stockman Charles J. Innis Mauricio Solano Philip H. Kass Michael F. Tlusty

K ridley turtles (Lepidochelys kempii) are an endangered sea turtle species found in waters of the southern United States and Mexico. Juveniles of this species are known to seasonally inhabit waters as far north as New England. In autumn, juvenile Kemp’s ridley turtles may become debilitated in the northwestern Atlantic ocean as water temperatures rapidly decrease and animals are forced to shor...

2003
WILLIAM It. COLE

As it has been demonstrated that closure of the valves, and changes in the cirral rhythm, of the rock barnacle Balan~ balanaides are reliable criteria of stimulation (Cole, 1932), experiments were made with the salts of the normal aliphatic acids) With a population of 137 animals under constant environmental conditions, the relation between the percentage of closed animals at successive 1 minut...

Journal: :Reviews of environmental contamination and toxicology 2008
Takashi Kunito Reiji Kubota Junko Fujihara Tetsuro Agusa Shinsuke Tanabe

Although there have been numerous studies on arsenic in low-trophic-level marine organisms, few studies exist on arsenic in marine mammals, seabirds, and sea turtles. Studies on arsenic species and their concentrations in these animals are needed to evaluate their possible health effects and to deepen our understanding of how arsenic behaves and cycles in marine ecosystems. Most arsenic in the ...

Journal: :Science 2015
Peter F Cook Colleen Reichmuth Andrew A Rouse Laura A Libby Sophie E Dennison Owen T Carmichael Kris T Kruse-Elliott Josh Bloom Baljeet Singh Vanessa A Fravel Lorraine Barbosa Jim J Stuppino William G Van Bonn Frances M D Gulland Charan Ranganath

Domoic acid (DA) is a naturally occurring neurotoxin known to harm marine animals. DA-producing algal blooms are increasing in size and frequency. Although chronic exposure is known to produce brain lesions, the influence of DA toxicosis on behavior in wild animals is unknown. We showed, in a large sample of wild sea lions, that spatial memory deficits are predicted by the extent of right dorsa...

2011
Gaëtan Burgaud Danielle Arzur Lucile Durand Marie-Anne Cambon-Bonavita Georges Barbier

26 The diversity of culturable yeasts at deep-sea hydrothermal sites has been investigated and 27 raises emerging hints regarding interactions with endemic fauna. Samples were collected 28 during diverse oceanographic cruises at Mid-Atlantic Ridge, South Pacific Basins and East 29 Pacific Rise. A culture collection of thirty-two isolates mostly associated with animals was 30 performed. The phyl...

Journal: :Science 2007
Nicholas H Putnam Mansi Srivastava Uffe Hellsten Bill Dirks Jarrod Chapman Asaf Salamov Astrid Terry Harris Shapiro Erika Lindquist Vladimir V Kapitonov Jerzy Jurka Grigory Genikhovich Igor V Grigoriev Susan M Lucas Robert E Steele John R Finnerty Ulrich Technau Mark Q Martindale Daniel S Rokhsar

Sea anemones are seemingly primitive animals that, along with corals, jellyfish, and hydras, constitute the oldest eumetazoan phylum, the Cnidaria. Here, we report a comparative analysis of the draft genome of an emerging cnidarian model, the starlet sea anemone Nematostella vectensis. The sea anemone genome is complex, with a gene repertoire, exon-intron structure, and large-scale gene linkage...

Journal: :Journal of wildlife diseases 2009
Tracey Goldstein Tanja S Zabka Robert L Delong Elizabeth A Wheeler Gina Ylitalo Sibel Bargu Mary Silver Tod Leighfield Frances Van Dolah Gregg Langlois Inga Sidor J Lawrence Dunn Frances M D Gulland

Domoic acid is a glutaminergic neurotoxin produced by marine algae such as Pseudo-nitzschia australis. California sea lions (Zalophus californianus) ingest the toxin when foraging on planktivorous fish. Adult females comprise 60% of stranded animals admitted for rehabilitation due to acute domoic acid toxicosis and commonly suffer from reproductive failure, including abortions and premature liv...

2006
Juan Jose Alava Sandie Salazar

Three species of otariids are found in the coastal zone and marine area of Ecuador and the Galápagos Islands. Two species, Galápagos sea lion (Zalophus wollebaeki ) and Galápagos fur seal (Arctocephalus galapagoensis), are endemic to the Galápagos. The South American sea lion (Otaria flavescens) has been recorded several times on the Ecuadorian coast, and even small semi-permanent or resident m...

2011
Kirsteen M. MacKenzie Martin R. Palmer Andy Moore Anton T. Ibbotson William R. C. Beaumont David J. S. Poulter Clive N. Trueman

Knowing the distribution of marine animals is central to understanding climatic and other environmental influences on population ecology. This information has proven difficult to gain through capture-based methods biased by capture location. Here we show that marine location can be inferred from animal tissues. As the carbon isotope composition of animal tissues varies with sea surface temperat...

Journal: :caspian journal of environmental sciences 2009
y. zeinolabedin

nowadays, a noticeable part of the relations among the states turn around the environment protection. therefore, the right for ever-creasing use of the existing resources of this inland sea cannot be exclusive to any caspian state and the aftermath involves all countries of this basin. in this respect, agreement on political border and boundaries with the caspian sea?s ecosystem is a difficult ...

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