Results 71 to 80 of about 5,335 (233)
Ecology and Evolution, Volume 15, Issue 12, December 2025.Distribution ranges of cephalopods are expanding worldwide and their abundances are increasing due to ocean warming. Recently, the broadtail shortfin squid Illex coindetii (Ommastrephidae) expanded into the North Sea where it established a successful spawning stock beside the resident veined squid Loligo forbesii (Loliginidae). Stomach content analysis
Hanna Rittinghaus +4 more
wiley +1 more source
Revista Mexicana de Biodiversidad, 2007 Analyses of 22,508 holoplanktonic chaetognaths collected at 21 stations were made from four oceanographic campaigns along the coasts of Quintana Roo, Mexico, in 1991 (Caribe I = February; Caribe II = March; Caribe III = May; Caribe IV= August ...
María del Carmen Gómez del Prado-Rosas +3 more
doaj
Studies on chaetognaths off Ubatuba region, Brazil: I. distribution and abundance
Brazilian Journal of Oceanography, 1994 The distribution of chaetognath species off Ubatuba region, São Paulo State, Brazil, was studied during a program of multidisciplinary research. Ten species belonging to the genera Sagitta, Krohnita and Pterosagitta were identified. S.
Liang Tsui Hua, Luz Amelia Vega-Pérez
doaj +1 more source
Bioluminescence in an Undescribed Species of Carnivorous Sponge (Cladorhizidae) From the Deep Sea
Frontiers in Marine Science, 2020 One dominant ecological trait in the dimly-lit deep-sea is the ability of organisms to emit bioluminescence. Despite its many ecological roles in deep-sea ecosystems, the presence of inherent bioluminescence in marine sponges has been debated for more ...
Séverine Martini +5 more
doaj +1 more source
A complete logical approach to resolve the evolution and dynamics of mitochondrial genome in bilaterians. [PDF]
PLoS ONE, 2018 Investigating how recombination might modify gene order during the evolution has become a routine part of mitochondrial genome analysis. A new method of genomic maps analysis based on formal logic is described.
Laurent Oxusoff +2 more
doaj +1 more source
, 2014 Studies on seasonal and spatial variations in the community structure of chaetognaths are limited despite their importance in marine plankton ecosystems.
Takuya Ohnishi, H. Ueda, K. Kuroda
semanticscholar +1 more source
FINE STRUCTURE OF THE EYE OF A CHAETOGNATH [PDF]
The Journal of Cell Biology, 1964 Electron microscopy reveals a star-like pigment cell at the center of the eye of the arrow-worm, Sagitta scrippsae. Between the arms of the pigment cell are clusters of photoreceptor cell processes, each process consisting of: (1) a tubular segment containing longitudinally arranged microtubules about 500 A in diameter and 20 µ in length; (2) a ...
R M, EAKIN, J A, WESTFALL
openaire +2 more sources
Limnology and Oceanography, Volume 70, Issue 12, Page 3634-3649, December 2025.Abstract Although gelatinous zooplankton are key members of marine ecosystems and food webs, their trophic ecology is poorly described across the deep pelagic. We used stable carbon (bulk tissue) and nitrogen (bulk tissue and amino acid) isotope analysis to estimate the trophic positions (TPs) of abundant gelatinous zooplankton (chaetognaths ...
Julia M. Chavarry +3 more
wiley +1 more source
The Chaetognaths of Western Canadian Coastal Waters [PDF]
Journal of the Fisheries Research Board of Canada, 1955 Four species of chaetognaths were found in samples from 11 representative areas along the coastline of western Canada. Sagitta elegans was the most abundant and widely distributed species, occurring, at least in small numbers, in all the areas sampled.
openaire +1 more source
Trends in secondary production in the inshore waters of the seas around India [PDF]
, 1983 CMFRI has been monitoring the microscopic organisms which belong to the categories of phyto and zooplanktons, being a reliable tool for the identification of areas prone to industrial and natural pollution and for understanding its extent and intensity ...
Bhat, G S +9 more
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