Results 61 to 70 of about 13,813 (212)

Morphology and Molecular Phylogenetic Analysis of Deep-Sea Purple Gorgonians (Octocorallia: Victorgorgiidae) from Seamounts in the Tropical Western Pacific, with Description of Three New Species

open access: yesFrontiers in Marine Science, 2020
Members of Scleraxonia Studer, 1887 are one of the most dominant megafaunal taxa on seamounts, but their diversity and spatial distribution are poorly known in the tropical Western Pacific.
Yang Li   +9 more
doaj   +1 more source

Increasing Global Expansion Speeds of Marine Invaders

open access: yesDiversity and Distributions, Volume 31, Issue 12, December 2025.
ABSTRACT Aim Quantifying the speed of invasive species range expansion and the mechanisms behind it is a key management goal that also informs ecological theories of spread. Byers et al. found that time since first global introduction (TSI) was the strongest predictor of non‐native range size of coastal marine invertebrates relative to environmental ...
Emily L. Richardson   +2 more
wiley   +1 more source

Life Cycle Transitions in the Freshwater Jellyfish Craspedacusta sowerbii

open access: yesBiology
Craspedacusta sowerbii is an invasive hydrozoan found globally in freshwater habitats. C. sowerbii has a complex life cycle that includes benthic, pelagic, dispersal and dormant stages.
Kent Winata   +6 more
doaj   +1 more source

Controlled Ghost Fishing: Effects of Soaking Times and Mesh Sizes on Catchability in Trammel Net Fisheries

open access: yesFisheries Management and Ecology, Volume 32, Issue 6, Page 405-417, December 2025.
ABSTRACT Trammel nets are used with extended soaking times to increase the catching efficiency for demersal fish in commercial fishing. Long soaking time causes deterioration or damage to species caught in the first days. Effects of soaking time were investigated with 36‐mm, 42‐mm, and 46‐mm mesh sizes soaked over 1, 3, 5, and 7 days on target, non ...
Yusuf Şen, Uğur Özekinci
wiley   +1 more source

The Biodiversity of Peter I Island—The Most Remote Island in the World

open access: yesEcology and Evolution, Volume 15, Issue 11, November 2025.
Peter I Island is one of the most isolated and least visited islands on earth; lying within the Antarctic Polar Front but over 420 km from continental Antarctica. Here we assess the biodiversity of the island from both previous records and our own BioBlitz in January 2022.
Michelle Jackson   +10 more
wiley   +1 more source

Complete mitochondrial genome of Callogorgia cf. gracilis (Octocorallia: Calcaxonia: Primnoidae)

open access: yesMitochondrial DNA. Part B. Resources, 2019
We report the first complete mitochondrial genome of Callogorgia. Callogorgia cf. gracilis isolate DFH32_518B was collected by a remotely operated vehicle at 98 m on McGrail Bank (27.9840725°N, 92.604242°W). The complete mitogenome is 18,937 bp (27.8% A,
Erin E. Easton, David Hicks
doaj   +1 more source

Morphological and Molecular Identification of Porpita porpita (Hydrozoa: Porpitidae) Larval and Colonial Phases

open access: yesDiversity
Porpita porpita is a colonial polymorphic hydrozoan distributed in temperate and tropical zones. This species, like most hydrozoans, possesses a metagenetic life cycle with alternating life forms: medusa stage, polypoid colony, and planula larva. However,
Jeimy Denisse Santiago-Valentín   +5 more
doaj   +1 more source

A guideline to nematocyst nomenclature and classification, and some notes on the systematic value of nematocysts

open access: yesScientia Marina, 2000
Cnidocyst nomenclature is based on the structure of the tubule and its armature as viewed in the light microscopy (LM). Investigations utilising optically improved LM and scanning electron microscopy have revealed some errors in the interpretation of the
Carina Östman
doaj   +1 more source

Complete mitochondrial genome of Carijoa riisei (Duchassaing & Michelotti, 1860) (Octocorallia: Alcyonacea: Stolonifera: Clavulariidae)

open access: yesMitochondrial DNA. Part B. Resources, 2020
We report the first complete Stolonifera mitochondrial genome. Carijoa riisei (Duchassaing & Michelotti, 1860) isolate CLP2_A03 was collected by scuba at 32 m on the USTS Texas Clipper (27° 53.7827′N, 93° 36.2702′W).
Erin E. Easton, David Hicks
doaj   +1 more source

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