The impact of climate change on the distribution of serpulid polychaetes: an ecophysiological approach.

Temperature influences the physiological performance of marine ectotherms-affecting survival, growth, and reproduction-and ultimately shaping their distribution. However, knowledge of how ocean warming will impact sessile ectotherms, such as serpulid polychaetes, remains limited. We hypothesize that rising ocean temperatures will affect serpulid thermal performance, potentially altering their distribution patterns.

Evaluation of Candidatus Xenohaliotis californiensis (CXc) and its associated phage pCXc in black abalone of Baja California, Mexico.

Black abalone Haliotis cracherodii from California, USA, and Baja California, Mexico, have faced massive population declines for more than 30 yr. The main factors contributing to these declines have been overfishing, pollution, climate change, and lethal diseases, such as withering syndrome, caused by the intracellular bacterium Candidatus Xenohaliotis californiensis (CXc). In recent years, the presence of an associated bacteriophage, pCXc, infecting CXc was detected and reported in some abalone species from California and Baja California.

Metabolic Responses of Christmas Tree Worms (Serpulidae: Spirobranchus) to Thermal Acclimation.

Serpulids are an ecologically important group of sessile suspension feeders that play a key role in benthic-pelagic coupling by filtering and transforming suspended organic matter from the water column. Temperature is one of the main abiotic factors influencing marine ectotherm physiology and metabolic responses, including serpulids and their growth, survival and distribution patterns. Thus, the present study objective was to determine thermal acclimation effects on metabolic responses of two serpulid species-Spirobranchus spinosus and S.

Diet-driven transcriptional changes in weaning red abalone (Haliotis rufescens) and its hybrid (H. rufescens [♀] x H. fulgens [♂]).

The abalone (Haliotis sp) aquaculture industry is on the rise fueled by its high commercial demand. The use of abalone interspecific hybrids is gaining attention due to their improved growth and tolerance to environmental challenges. However, hybrids may respond differently to dietary inputs compared to their parental species, which could be optimized to achieve maximum growth potential.

A Seascape Genomics Perspective on Restrictive Genetic Connectivity Overcoming Signals of Local Adaptations in the Green Abalone () of the California Current System.

Seascape genomics facilitates integrative research on eco-evolutionary forces, such as migration and natural selection, which shape genomic connectivity and structure and provide critical insights for conservation strategies. The green abalone () is distributed from California, United States, to Baja California Sur, Mexico, and exposed to a latitudinal environmental gradient in the California Current System. This study aimed to investigate genomic population structure and potential local adaptations of green abalone across its distribution.

Genetic Insights into the Giant Keyhole Limpet (), an Eastern Pacific Coastal Endemic: Complete Mitogenome, Phylogenetics, Phylogeography, and Historical Demography.

Background: The giant keyhole limpet is a gastropod mollusk (Fissurella superfamily) that is endemic to the eastern Pacific coast from southern California, USA, to Baja California Sur, Mexico. is socioeconomically important as it produces a potent immune-stimulating protein, called Keyhole Limpet Hemocyanin, which is extracted in vivo and utilized for vaccine development. However, ecological studies are scarce and genetic knowledge of the species needs to be improved.

Seascape genomics of the pink abalone (Haliotis corrugata): An insight into a cross-border species in the northeast Pacific coast.

Seascape genomics gives insight into the geographic and environmental factors shaping local adaptations. It improves the understanding of the potential effects of climate change, which is relevant to provide the basis for the international management of fishery resources. The pink abalone (Haliotis corrugata) is distributed from California, United States to Baja California Sur, Mexico, exposed to a latitudinal environmental gradient in the California Current System.

Transcriptomic assessment of dietary fishmeal partial replacement by soybean meal and prebiotics inclusion in the liver of juvenile Pacific yellowtail (Seriola lalandi).

Background: Seriola lalandi is an important species for aquaculture, due to its rapid growth, adaptation to captivity and formulated diets, and high commercial value. Due to the rise in fishmeal (FM) price, efforts have been and still are made to replace it partially or entirely with vegetable meals in diets for carnivorous fish. The use of prebiotics when feeding vegetable meals has improved fish health.

Acidification stress effect on umbonate veliger larval development in Panopea globosa.

Ocean acidification generates a decrease in calcium carbonate availability essential for biomineralization in organisms such as mollusks. This effect was evaluated on Panopea globosa exposing for 7 days umbonate veliger larvae to two pH treatments: experimental (pH 7.5) and control (pH 8.

Transcriptomic and metabolic response to chronic and acute thermal exposure of juvenile geoduck clams Panopea globosa.

The Cortes geoduck Panopea globosa is a large bivalve with a high commercial value distributed from the southern Pacific coast of the Baja California Peninsula to the northern Gulf of California, inhabiting a wide range of subtropical temperatures. A new record of this species in shallower waters suggests that it can tolerate a warmer environment than previously thought. To better understand the whole-body and molecular response mechanisms to different temperatures, we assessed the metabolic rate of juvenile individuals exposed to chronic and acute thermal conditions and analyzed the transcriptomic response in ctenidial tissues.

Transcriptome mining of immune-related genes in the muricid snail Concholepas concholepas.

The population of the Chilean endemic marine gastropod Concholepas concholepas locally called "loco" has dramatically decreased in the past 50 years as a result of intense activity of local fisheries and high environmental variability observed along the Chilean coast, including episodes of hypoxia, changes in sea surface temperature, ocean acidification and diseases. In this study, we set out to explore the molecular basis of C. concholepas to cope with biotic stressors such as exposure to the pathogenic bacterium Vibrio anguillarum.

Genomic DNA variation confirmed Seriola lalandi comprises three different populations in the Pacific, but with recent divergence.

Captive breeding programs and aquaculture production have commenced worldwide for the globally distributed yellowtail kingfish (Seriola lalandi), and captive bred fingerlings are being shipped from the Southern Hemisphere to be farmed in the Northern Hemisphere. It was recently proposed that Pacific S. lalandi comprise at least three distinct species that diverged more than 2 million years ago.

Whole genome sequencing of Mycobacterium bovis to obtain molecular fingerprints in human and cattle isolates from Baja California, Mexico.

Objectives: To determine genetic diversity by comparing the whole genome sequences of cattle and human Mycobacterium bovis isolates from Baja California.

Methods: A whole genome sequencing strategy was used to obtain the molecular fingerprints of 172 isolates of M. bovis obtained from Baja California, Mexico; 155 isolates were from cattle and 17 isolates were from humans.

The complete mitochondrial DNA of endemic Eastern Pacific coral (Porites panamensis).

The mitogenome of the endemic coral Porites panamensis (Genbank accession number KJ546638) has a total length of 18,628 bp, and the arrangement consist of 13 protein-coding genes, 2 ribosomal RNA (rRNA) genes and 2 transfer RNA (tRNA) genes. Gene order was equal to other scleractinian coral mitogenomes.

The complete mitochondrial DNA of the tropical gar (Atractosteus tropicus).

The mitogenome of the tropical gar, Atractosteus tropicus, (GeneBank accession number KJ531198) has a total length of 16,280 bp, and the arrangement consist of 13 protein-coding genes, 2 ribosomal RNA (rRNA) genes and 22 transfer RNA similar to other Lepisosteidae family mitogenomes.