Results 81 to 90 of about 26,345 (228)

Symbiotic organs shaped by distinct modes of genome evolution in cephalopods

Proceedings of the National Academy of Sciences of the United States of America, 2019
Significance Animal–microbe associations are critical drivers of evolutionary innovation, yet the origin of specialized symbiotic organs remains largely unexplored. We analyzed the genome of Euprymna scolopes, a model cephalopod, and observed large-scale
M. Belcaid, G. Casaburi, Sarah J. McAnulty, H. Schmidbaur, A. Suria, S. Moriano-Gutierrez, M. S. Pankey, Todd H. Oakley, N. Kremer, Eric J. Koch, A. Collins, Hoan Nguyen, Sai Lek, Irina Goncharenko-Foster, P. Minx, E. Sodergren, G. Weinstock, Daniel S. Rokhsar, M. McFall-Ngai, Oleg Simakov, J. S. Foster, S. Nyholm   +21 more
semanticscholar   +1 more source

Improving Demographics and Conservation of Fishes Through Multi‐Frame Individual Distinctions by Size (MIDS)

Remote Sensing in Ecology and Conservation, EarlyView.
MIDS (Multi‐frame Individual Distinctions by Size) is a new software package for improving how fish populations are assessed using stereo‐video data. By using the length, error and statistical inference of measurements, MIDS distinguishes individuals across multiple video frames and autonomously removes repeat observations, regardless of when the ...
Hayden Swift, David Harasti, Megan Huggett, Michael Stat, Troy Gaston   +4 more
wiley   +1 more source

Morphological and morphometric variability of the squid Lolliguncula brevis (Mollusca: Cephalopoda) in Brazilian waters: evidence for two species in the western atlantic?

Anais da Academia Brasileira de Ciências, 2012
Morphological and morphometric variability of the small-sized coastal squid Lolliguncula brevis was assessed along the largest part of its latitudinal range in the southern hemisphere, off the Brazilian coast (8º S - 27º S). A general homogeneity in form
Tânia Zaleski, José A. Angel Perez, Ana luiza Gandara-Martins   +2 more
doaj   +1 more source

Extraocular Photoreception in Optic Lobes, Suckers, and Skin of Octopus vulgaris

Integrative Zoology, EarlyView.
Evidence of extra‐ocular photoreception in Octopus vulgaris (a) Diagram of the O. vulgaris different tissues considered: SPB, sucker proximal big; SPL, sucker proximal large; SM, sucker medium; SD, sucker distal; SK, skin; OL, optic lobes; RT, retina; (b‐d) Gene expression analysis of Ov‐GRK1 (red), Ov‐retinochrome (green), Ov‐rhodopsin (blue) mRNA ...
Valeria Maselli, Al‐Sayed Al‐Soudy, Mariangela Norcia, Stefania Galdiero, Sara Palladino, Emanuela Cirillo, Gianluca Polese, Anna Di Cosmo   +7 more
wiley   +1 more source

Cephalopods of the Multiverse

, 2018
Carnall, M.A. (2018) Cephalopods of the Multiverse.
Carnall, Mark A.
core   +1 more source

Embryonic development of a centralised brain in coleoid cephalopods

Neural Development
The last common ancestor of cephalopods and vertebrates lived about 580 million years ago, yet coleoid cephalopods, comprising squid, cuttlefish and octopus, have evolved an extraordinary behavioural repertoire that includes learned behaviour and tool ...
Ali M. Elagoz, Marie Van Dijck, Mark Lassnig, Eve Seuntjens   +3 more
doaj   +1 more source

Ecological pressures and the contrasting scaling of metabolism and body shape in coexisting taxa: cephalopods versus teleost fish

Philosophical Transactions of the Royal Society of London. Biological Sciences, 2019
Metabolic rates are fundamental to many biological processes, and commonly scale with body size with an exponent (bR) between 2/3 and 1 for reasons still debated. According to the ‘metabolic-level boundaries hypothesis', bR depends on the metabolic level
Hanrong Tan, A. Hirst, D. S. Glazier, D. Atkinson   +3 more
semanticscholar   +1 more source

The Effects of Noise on the Juvenile Life Stage of Crustaceans: Behavioral, Cellular, and Molecular Responses in Procambarus clarkii

Integrative Zoology, EarlyView.
Juvenile Procambarus clarkii exposed to noise exhibited behavioral changes, shifts in enzymatic activity, and altered expression of stress and immune genes. The findings highlight the sensitivity of invertebrate juveniles to anthropogenic acoustic pollution.
Maria Ceraulo, Giuseppa Buscaino, Clarissa De Vita, Aiti Vizzini, Mirella Vazzana, Elena Papale, Francesco Longo, Francesco Paolo Faraone, Manuela Mauro   +8 more
wiley   +1 more source

Absence of a Hectocotylus and Associated Mating Behaviour in the Paintpot Cuttlefish Ascarosepion tullbergi

Acta Zoologica, EarlyView.
ABSTRACT A hectocotylus is a sexually modified arm used by males of some cephalopod species to transfer spermatophores to females. In most cuttlefish (Sepiidae), it corresponds to the left arm IV, in which basal suckers are reduced or absent; this modification is thought to facilitate sperm transfer without premature rupture, which could be caused by ...
Ayano Omura, Shin‐ichiro Oka, Taketeru Tomita, Haruka Takano, Daisuke Funabara   +4 more
wiley   +1 more source

Southern Ocean cephalopods

, 2006
The Southern Ocean cephalopod fauna is distinctive, with high levels of endemism in the squid and particularly in the octopodids. Loliginid squid, sepiids and sepiolids are absent from the Southern Ocean, and all the squid are oceanic pelagic species ...
Collins, Martin A., Martin A. Collins, Paul G.K. Rodhouse, Rodhouse, Paul G.K.   +3 more
core   +1 more source