Results 91 to 100 of about 1,281,546 (311)

Sea Urchins Predation Facilitates Coral Invasion in a Marine Reserve

PLoS ONE, 2011
Macroalgae is the dominant trophic group on Mediterranean infralittoral rocky bottoms, whereas zooxanthellate corals are extremely rare. However, in recent years, the invasive coral Oculina patagonica appears to be increasing its abundance through ...
R. Coma, Eduard Serrano, C. Linares, M. Ribes, D. Díaz, E. Ballesteros   +5 more
semanticscholar   +1 more source

Post‐LECA Origin and Diversification of an Axonemal Outer Arm Dynein Motor

Cytoskeleton, EarlyView.
ABSTRACT Dyneins were present in the last eukaryotic common ancestor (LECA) and play key roles in eukaryotic biology. Axonemal dyneins form the inner and outer arms that power ciliary beating, and it has long been recognized that outer arms in some organisms contain two different heavy chain motors, whereas those from other species contain a third unit
Stephen M. King
wiley   +1 more source

β‐Catenin localization in the ctenophore Mnemiopsis leidyi suggests an ancestral role in cell adhesion and nuclear function

Developmental Dynamics, EarlyView.
Abstract Background The emergence of multicellularity in animals marks a pivotal evolutionary event, which was likely enabled by molecular innovations in the way cells adhere and communicate with one another. β‐Catenin is significant to this transition due to its dual role as both a structural component in the cadherin–catenin complex and as a ...
Brian M. Walters, Lucas J. Guttieres, Mayline Goëb, Stanley J. Marjenberg, Mark Q. Martindale, Athula H. Wikramanayake   +5 more
wiley   +1 more source

Aquaculture boosts urchin roe production

California Agriculture, 1997
Red sea urchins, with their hedge-hoglike shells and five skeins of edible golden roe, are a gourmet treat, especially in Asia. Each year California divers harvest as many as 25 million pounds of the red sea urchins that many people find delicious and ...
S McBride
doaj   +2 more sources

Possible role of microtubules in vesicular transport of matrix protein during sea urchin larval biomineralization

Developmental Dynamics, EarlyView.
Abstract Background Biomineralization is a vital biological process through which organisms produce mineralized structures such as shells, skeletons, and teeth. Microtubules are essential for biomineralization in various eukaryotic species; however, their specific roles in this process remain unclear.
Areen Qassem, Tsvia Gildor, Smadar Ben‐Tabou de‐Leon   +2 more
wiley   +1 more source

Russian Sea Urchins [PDF]

Nature, 1969
Fauna of Russia and Adjacent Countries Echinodermata. Vol.1: Echinoidea. By A. M. D'yakonov. Translated from the Russian. Pp. iv + 265. (Israel Program for Scientific Publications: Jerusalem. Distributed in the UK by H. A. Humphrey: London, July 1969.) 120s.
openaire   +2 more sources

Black sea urchins evaluate predation risk using chemical signals from a predator and injured con- and heterospecific prey

, 2011
The traits related to foraging and eating are crucial to our understanding of food webs. The use of signals to detect predators has strong relevance for prey survival.
Vanessa Rímoli Morishita, R. E. Barreto
semanticscholar   +1 more source

Environmental and local habitat variables as predictors of trophic interactions in subtidal rocky reefs along the SE Pacific coast

Ecography, EarlyView.
Temperature generally drives latitudinal patterns in the strength of trophic interactions, including consumption rates. However, local community and other environmental conditions might also affect consumption, disrupting latitudinal gradients, which results in complex large‐scale patterns.
Catalina A. Musrri, Alistair G. B. Poore, Oscar Pino, Nicolás Riquelme, Wolfgang B. Stotz, Fadia Tala, Martin Thiel   +6 more
wiley   +1 more source

Testing the core–periphery hypothesis: a standardised multi‐phylum assessment of genetic diversity of marine coastal species

Ecography, EarlyView.
The core–periphery hypothesis (CPH) predicts that genetic diversity is greatest at the centre and lowest at the edges of a species' distribution because genetic diversity is a function of a species' abundance, which is also expected to be greatest at the centre and lowest at the edges of the distribution. Variants of the CPH include the ‘Ramped North' (
Daniel Cárcamo, Mailiu Díaz Peña, Jonathan P. A. Gardner   +2 more
wiley   +1 more source

Effects of Dietary Tussah Immunoreactive Pupa Powder on Growth, Gonad Quality, Antioxidant Capacity, and Gut Microbiota of the Sea Urchin Strongylocentrotus intermedius

Biology
Tussah immunoreactive pupa powder (IPP) is composed of various active substances. We speculated that it has the potential to improve key economic traits of sea urchins.
Shufeng Li, Fenglin Tian, Weiyan Li, Haoran Xiao, Ye Tian, Yajie Deng, Lingshu Han, Chong Zhao, Jun Ding   +8 more
doaj   +1 more source