نتایج جستجو برای: marine species

تعداد نتایج: 623070  

2015
Rachel Przeslawski Belinda Alvarez Johnathan Kool Tom Bridge M. Julian Caley Scott Nichol James Bell

Marine reserves are becoming progressively more important as anthropogenic impacts continue to increase, but we have little baseline information for most marine environments. In this study, we focus on the Oceanic Shoals Commonwealth Marine Reserve (CMR) in northern Australia, particularly the carbonate banks and terraces of the Sahul Shelf and Van Diemen Rise which have been designated a Key E...

 Hyperglycemia and hyperlipidemia have been symptoms of many serious diseases such as diabetes and atherosclerosis overall the world. Thus, drug researchers have focused on new, natural and healthy drug alternatives. Marine macroalgae is a great source of hypoglycemic, hypolipidemic or hypocholesterolemic agents. In this study, we investigated that hypoglycemic, hypolipidemic a...

Journal: :Biological reviews of the Cambridge Philosophical Society 2015
Alison L Green Aileen P Maypa Glenn R Almany Kevin L Rhodes Rebecca Weeks Rene A Abesamis Mary G Gleason Peter J Mumby Alan T White

Well-designed and effectively managed networks of marine reserves can be effective tools for both fisheries management and biodiversity conservation. Connectivity, the demographic linking of local populations through the dispersal of individuals as larvae, juveniles or adults, is a key ecological factor to consider in marine reserve design, since it has important implications for the persistenc...

2009
KATHLEEN M. DUDZINSKI JEANETTE A. THOMAS JUSTIN D. GREGG

Communication is a process by which a sender produces a signal, which alters the probability of a subsequent behav­ ior in a receiver(s). Often, but not always, communication facilitates social behavior. Given the highly social behavior found in many marine mammals, the study of communicative behavior is essential to understanding the role that signaling plays in regulating social interactions ...

2016
Elena Kupriyanova Pat Hutchings Eunice Wong Catherine de Rivera

Introduction of non-native species threatens local marine biodiversity, generating substantial costs for the aquaculture and tourism industries when native (including commercial) species are displaced. It is important that non-indigenous species are identified and controlled before they establish locally becoming invasive pests. The important vectors contributing to human-related dispersal of m...

Journal: :PloS one 2016
Michael G Tassia Johanna T Cannon Charlotte E Konikoff Noa Shenkar Kenneth M Halanych Billie J Swalla

Phylum Hemichordata, composed of worm-like Enteropneusta and colonial Pterobranchia, has been reported to only contain about 100 species. However, recent studies of hemichordate phylogeny and taxonomy suggest the species number has been largely underestimated. One issue is that species must be described by experts, and historically few taxonomists have studied this group of marine invertebrates...

Journal: :Ecological applications : a publication of the Ecological Society of America 2010
J Claudet C W Osenberg P Domenici F Badalamenti M Milazzo J M Falcón I Bertocci L Benedetti-Cecchi J A García-Charton R Goñi J A Borg A Forcada G A De Lucia A Perez-Ruzafa P Afonso A Brito I Guala L Le Diréach P Sanchez-Jerez P J Somerfield S Planes

Marine reserves are assumed to protect a wide range of species from deleterious effects stemming from exploitation. However, some species, due to their ecological characteristics, may not respond positively to protection. Very little is known about the effects of life history and ecological traits (e.g., mobility, growth, and habitat) on responses of fish species to marine reserves. Using 40 da...

Journal: :Marine pollution bulletin 2015
S C Gall R C Thompson

Marine debris is listed among the major perceived threats to biodiversity, and is cause for particular concern due to its abundance, durability and persistence in the marine environment. An extensive literature search reviewed the current state of knowledge on the effects of marine debris on marine organisms. 340 original publications reported encounters between organisms and marine debris and ...

Journal: :Zootaxa 2013
Vladimir Pesic

Most of the known pontarachnid species (Acari, Hydrachnidia) live in the marine littoral zone; a few species have been described from freshwaters, but these species were found to occur in estuaries or locations near the sea. Occasionally some specimens of the surface dwelling species were taken from marine interstitial. During a recent survey on marine interstitial fauna along the coast of Sout...

1999
L. Legendre F. Rassoulzadegan J. Michaud

A new approach is described to identify the dominant process (physical versus biological) in a pelagic marine ecosystem, from simple biological oceanographic field variables. The approach is based on quantification of the matching (M) between phytoplankton production (P) and losses, from field estimates of chlorophyll a (Chl) and P. Coefficient M is estimated for a wide range of oceanic and coa...

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