Environmental characteristics associated with the presence of the Spinetail devil ray (Mobula mobular) in the eastern tropical Pacific

PloS One
Nerea Lezama-OchoaHilario Murua

Abstract

In the eastern Pacific Ocean, the tropical tuna purse-seine fishery incidentally captures high numbers of five mobulid bycatch species; all of which are classified as mortalities by the Inter-American Tropical Tuna Commission due to uncertainties in post-release mortality rates. To date, the factors (operational or environmental) leading to the capture of these species by the fishery have not been well studied. Here, we developed Generalized Additive Models for fisheries observer data to analyze the relationships between the presence/absence of Mobula mobular bycatch and oceanographic conditions, the spatial and temporal variability in fishing location, and the set type (associated with dolphins, free-swimming tuna schools or floating objects). Our results suggest that chlorophyll concentration and sea surface height are the most important variables to describe the presence of M. mobular in conjunction with geographic location (latitude and longitude) and set type. Presence of the species was predicted in waters with chlorophyll concentrations between 0.5-1 mg·m-3 and with sea surface height values close to 0; which indicates direct relationships with productive upwelling systems. Seasonally, M. mobular was observed more freque...Continue Reading

References

Mar 28, 2009·Ecological Applications : a Publication of the Ecological Society of America·Steven J PhillipsSimon Ferrier
May 27, 2009·Medical & Biological Engineering & Computing·R J ScheenstraFrans J M Hilgers
Apr 14, 2012·Journal of Fish Biology·L I E CouturierA J Richardson
May 17, 2012·PloS One·Rachel T GrahamLucy A Hawkes
Jul 20, 2012·Annual Review of Marine Science·William F GillyBruce H Robison
Dec 1, 2012·Stem Cells Translational Medicine·Krisztina Szöke, Jan E Brinchmann
Jan 23, 2014·ELife·Nicholas K DulvyWilliam T White
Jul 2, 2014·Nature Communications·Simon R ThorroldMichael L Berumen
Oct 22, 2016·Zoology : Analysis of Complex Systems, ZACS·Joshua D StewartRobert D Rubin
Sep 24, 2016·Scientific Reports·Sebastián A PardoNicholas K Dulvy
Mar 21, 2017·PeerJ·Julia M LawsonNicholas K Dulvy
Jun 3, 2017·Royal Society Open Science·Christoph A RohnerAnthony J Richardson
Oct 14, 2017·Surgical Neurology International·A Ceja-EspinosaM I Ruiz-Flores
Jun 6, 2018·Ecology·Joshua D StewartRoger J Munns

❮ Previous
Next ❯

Citations


❮ Previous
Next ❯

Methods Mentioned

BETA
GAM

Software Mentioned

PresenceAbsence
phyton scripts
AED package
Quantum GIS
R
spdep
Phyton
Mobula mobular
rasters
mobular

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.