Results 71 to 80 of about 6,618 (168)

Pyrosome fecal pellet production: Implications for grazing and carbon export

open access: yesLimnology and Oceanography, Volume 71, Issue 9, September 2026.
Abstract This study quantifies the fecal pellet production and pellet sinking rates of the pyrosome Pyrosoma atlanticum in the Southern California Current across a range of conditions, from the productive nearshore to the oligotrophic offshore. Fecal pellet production rates averaged 1310 ± 76 pellets h−1, resulting in the production of up to 390,380 ...
Grace F. Cawley   +5 more
wiley   +1 more source

Distribution of pelagic tunicates in the western part of the Bay of Bengal [PDF]

open access: yes, 1972
A total of thirty-three species and two varieties of pelagic tunicates are reported from the western part of the Bay of Bengal. The influence of the prevailing water movements, temperature and salinity on the distribution of pelagic tunicates at the ...
Bhavanarayana, P. V., Ganapati, P. N.
core   +1 more source

Giant phytoplankton revealed by in situ imaging

open access: yesLimnology and Oceanography Letters, Volume 11, Issue 5, September 2026.
Abstract Deployment of an autonomous Zooglider in the western Mediterranean Sea revealed the presence of long phytoplankton chains attaining maximum lengths of 6.4–10.4 mm suspended in situ. Elongate chains included the diatoms Guinardia, Proboscia, two other diatom morphologies, and solitary filaments of the cyanobacterium Trichodesmium. Most elongate
Mark D. Ohman   +3 more
wiley   +1 more source

From the sea to DNA barcode: Optimized preservation method for gelatinous zooplankton integrative taxonomy

open access: yesLimnology and Oceanography: Methods, Volume 24, Issue 9, September 2026.
Abstract Assigning taxonomic identity and thus assessing taxonomic diversity in gelatinous zooplankton is challenging due to their fragility and difficult preservation. Formalin fixation compromises DNA integrity, while flash‐freezing, ethanol, and acetone preservation affect morphological features. In this study, we developed a methodological protocol
Claudia Traboni   +4 more
wiley   +1 more source

Data from: Tunicates and not cephalochordates are the closest living relatives of vertebrates

open access: yes, 2011
Tunicates or urochordates (appendicularians, salps and sea squirts), cephalochordates (lancelets) and vertebrates (including lamprey and hagfish) constitute the three extant groups of chordate animals.
Chourrout, Daniel   +3 more
core   +1 more source

Disjoint geographical distribution of intertidal and nearshore benthic invertebrates in the Southern Hemisphere Distribuciones geográficas disyuntas de invertebrados bentónicos intermareales y del submareal somero en el Hemisferio Sur

open access: yesRevista Chilena de Historia Natural, 2000
Biogeographical explanations for the extant and paleo disjoint geographical distribution in the southern hemisphere of five species of nearshore marine benthic invertebrates: Gaimardia trapesina, Ostrea chilensis, Pyura stolonifera taxonomic complex ...
JUAN C CASTILLA, RICARDO GUIÑEZ
doaj  

Transforming Life Science Through Chromosome‐Level Genome Assemblies

open access: yesGenes to Cells, Volume 31, Issue 5, September 2026.
Chromosome‐level genome assemblies provide a framework for “glocal biology” in species of interest, linking local molecular features to chromosome architecture and evolutionary context. When integrated with pangenome analysis, comparative multi‐omics, genome language models, and experimental approaches, these assemblies enable hypothesis generation and
Tetsuo Kon   +7 more
wiley   +1 more source

The Application of a Mathematical Model to Evaluate the Effectiveness of Control Strategies Against Ciona intestinalis in Mussel Production

open access: yesFrontiers in Veterinary Science, 2019
The Prince Edward Island (PEI) mussel industry has faced challenges associated with invasive tunicate species over the past two decades. Field experiments to find suitable mitigation strategies require considerable time and are resource intensive.
Thitiwan Patanasatienkul   +4 more
doaj   +1 more source

Phallusiasterol C, A New Disulfated Steroid from the Mediterranean Tunicate Phallusia fumigata

open access: yesMarine Drugs, 2016
A new sulfated sterol, phallusiasterol C (1), has been isolated from the Mediterranean ascidian Phallusia fumigata and its structure has been determined on the basis of extensive spectroscopic (mainly 2D NMR) analysis. The possible role in regulating the
Concetta Imperatore   +7 more
doaj   +1 more source

Circumglobal Distribution of the Benthic Ctenophore Vallicula multiformis (Rankin 1956), Documented Through Diverse Observation Types

open access: yesJournal of Biogeography, Volume 53, Issue 9, September 2026.
ABSTRACT Aim To improve our understanding of the distribution of Vallicula multiformis, we integrate a series of diverse observation types, including citizen science records, published literature, metagenomic datasets, published sequences, and newly acquired material, to evaluate whether geographically isolated records reflect a single broadly ...
Nicholas Bezio   +5 more
wiley   +1 more source

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