Results 1 to 10 of about 473 (128)

Unveiling coralline diversity of mesophotic rhodoliths in subtropical Japan, including new species of Sporolithon, emended genera Orientalilithon and Roseolithon (Corallinophycidae, Rhodophyta). [PDF]

J Phycol
Abstract The mesophotic zone off Tanegashima Island (approximately 30–40 m deep) is a marine macroalgal hotspot in subtropical Japan; however, the taxonomic diversity of calcifying red algal community remains poorly understood. Our phylogenetic analyses based on psbA, rbcL, and COI‐5P gene markers disclosed the presence of at least 12 rhodolith‐forming
Min-Khant-Kyaw, Baba M, Terada R, Kato A.   +3 more
europepmc   +2 more sources

Accounting for Intra- and Intergenomic Sequence Variation in Reference Barcodes Improves eDNA Metabarcoding Biodiversity Assessment. [PDF]

Mol Ecol Resour
ABSTRACT Environmental DNA (eDNA) metabarcoding can rapidly characterise biodiversity, yet its accuracy and effectiveness are limited by incomplete DNA barcode reference databases. We evaluated how comprehensive reference databases that include sequence variation within genomes (intragenomic) and across individuals and species (intergenomic) improve ...
McCartin LJ, Vohsen SA, Wood AL, Horowitz J, Orozco-Juarbe JJ, Pittoors N, Morrissey D, Vaga CF, Hansel CM, Collins AG, Quattrini AM, Herrera S.   +11 more
europepmc   +2 more sources

Rapid Decreases and Performance Declines in Northeast Pacific Seamount Foundation Species Detected in an Oxygen Minimum Zone. [PDF]

Glob Chang Biol
Across 12 long‐term monitoring sites on three Northeast Pacific seamounts, 163 of 844 cold‐water coral and sponge individuals were lost between surveys 3–5 years apart, with abundance declining at five sites and condition (i.e., health) declining at nine.
Clark L, Du Preez C, Clyde G, Bates AE.
europepmc   +2 more sources

In situ observation of bluntnose sixgill shark (Hexanchus griseus) aggregation, mainland Palau

Ecosphere, Volume 17, Issue 6, June 2026.
Abstract The bluntnose sixgill shark (Hexanchus griseus) is a globally distributed large‐bodied predator, primarily associated with deep‐sea environments. Due to the logistical constraints of its habitat, much remains unknown about the life history and behavior of H. griseus.
Alyssa M. Adler, Whitney Goodell, Jeffrey C. Drazen, Harold K. Carlson, Yuval Keren, Arik Amzaleg   +5 more
wiley   +1 more source

Species‐Specific Vulnerability of Northern Red Sea Mesophotic Corals to Accelerated Warming

Global Change Biology Communications, Volume 1, Issue 2, June 2026.
Mesophotic reefs are often considered climate refuges, yet experimental thermal‐stress reveals species‐dependent vulnerability. Skeletal optics, energy reserves, and light environment determine bleaching severity. A depth‐generalist coral resisted stress while the mesophotic specialist bleached severely.
Netanel Kramer, Na'ama‐Rose Kochman, Ayelet Zion, Maoz Fine, Yossi Loya, Daniel Wangpraseurt   +5 more
wiley   +1 more source

Sex Determination in Sponges

Molecular Reproduction and Development, Volume 93, Issue 6, June 2026.
ABSTRACT Sex determination in Porifera remains one of the least understood aspects of early metazoan biology despite the group's key phylogenetic position. Sponges display exceptional diversity in sexual systems—ranging from stable gonochorism to sequential hermaphroditism and sex reversal—yet lack morphological dimorphism and any discrete gonadal ...
Jose M. Lorente‐Sorolla, Ana Riesgo
wiley   +1 more source

Mesophotic animal forests of the Aegean Sea support fish diversity hotspots under high fishing pressure

Ecosphere, Volume 17, Issue 5, May 2026.
Abstract Marine animal forests (MAFs) are dense aggregations of habitat‐forming species that constitute essential habitats for diverse taxa including fish. However, the study of MAFs and their associated fauna remains largely skewed to their shallowest occurrence, above 30 m depth.
J. Jacquemont, M. Kovačić, J. Claudet, E. Périé‐Bardout, G. Bardout, G. Ochoa, L. Bramanti   +6 more
wiley   +1 more source

Projected Risks to Biodiversity Conservation Along Brazil's Equatorial Margin Under Expanding Offshore Oil Development

Conservation Letters, Volume 19, Issue 3, May/June 2026.
ABSTRACT Brazil's Equatorial Margin is one of the least studied yet most ecologically significant regions of the Atlantic Ocean. Encompassing the Amazon coast, the region is entering a new phase of industrial expansion. In 2025, Brazil issued its first offshore oil exploration license in two decades, opening the door to large‐scale hydrocarbon ...
Rafael A. Magris, Martinho Marta‐Almeida, Carlos Alessandre Domingos Lentini   +2 more
wiley   +1 more source

Cross‐Depth Genetic Connectivity Supports the Role of Deep Kelp Forests as Refuge From Climate Change

Diversity and Distributions, Volume 32, Issue 5, May 2026.
ABSTRACT Aim Ocean warming and marine heatwaves are threatening the persistence of kelp forests, but cooler, deeper reefs might act as refuges from which shallow populations can recover. This study aimed to assess the genetic connectivity, diversity, and adaptive structure of deep kelp reefs to evaluate their potential as climate refuges.
Antoine J. P. Minne, Thomas Wernberg, Dave Wheeler, Jacqueline Batley, Melinda A. Coleman   +4 more
wiley   +1 more source

Global Analysis of Shallow Underwater Fish Observation Research: 70 Years of Progress, Persistent Geographic Biases and a Path Forward

Fish and Fisheries, Volume 27, Issue 3, Page 607-626, May 2026.
ABSTRACT Marine ecosystems are increasingly threatened by overfishing, pollution, coastal development and climate change, underscoring the need for long‐term, representative information on key fish populations and habitats to inform management and policy.
Angus John van Wyk, Rick D. Stuart‐Smith, Jordan S. Goetze, Eva Maire, Elodie Heyns‐Veale, Kaylee Smit, Tim J. Langlois, M. Aaron MacNeil, Alejandro Pérez‐Matus, Amanda T. Lombard, Ana Carolina, Christy Semmens, Ella Clausius, Fernanda A. Rolim, Jonathan S. Lefcheck, Jacquomo Monk, Joanna K. Schmid, Katherine Tattersall, Laura Ghigliotti, Luther Adams, Melita Samoilys, Pascale Chabanet, Paul Whomersley, Peter Walsh, Reiji Masuda, Russell Brainard, Anthony Bernard   +26 more
wiley   +1 more source