Awareness About The Effect Of Ocean Warming On Marine Species

2020 ◽  
Vol 13 (01) ◽  
Keyword(s):  
Marine Species ◽  
Ocean Warming

scholarly journals Geographical Range Extension of the Spotfin burrfish, Chilomycterus reticulatus (L. 1758), in the Canary Islands: A Response to Ocean Warming?

Diversity ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 230 ◽  
Author(s):  
Fernando Espino ◽  
Fernando Tuya ◽  
Armando del Rosario ◽  
Néstor E. Bosch ◽  
Josep Coca ◽  
...  
Keyword(s):  
Surface Temperature ◽  
Sea Surface Temperature ◽  
Marine Species ◽  
Ocean Warming ◽  
Sea Surface ◽  
Potential Donor ◽  
Gran Canaria ◽  
El Hierro ◽  
Distribution Ranges ◽  
Tropical Conditions

In recent decades, numerous marine species have changed their distribution ranges due to ocean warming. The Spotfin burrfish, Chilomycterus reticulatus, is a reef fish with a global distribution along tropical, subtropical and warm-temperate areas of the Pacific, Indian and Atlantic oceans. In this work, we analyzed the presence of this species, between 1990 and 2019, at two islands of the Canarian Archipelago under varying oceanographic conditions: El Hierro (the westernmost island, under more tropical conditions) and Gran Canaria (a central-east island, under more cooler conditions). We expected that, under increased ocean temperatures in recent decades, the number of sightings has increased in Gran Canaria relative to El Hierro. We compiled information from different sources, including interviews and local citizenship databases. A total of 534 sightings were reported: 38.58% from El Hierro and 61.43% from Gran Canaria. The number of sightings on Gran Canaria has significantly increased through time, at a rate of 0.1 sightings per year; at El Hierro, however, the number of sightings has not significantly changed over time. Sea Surface Temperature has linearly increased in both El Hierro and Gran Canaria islands over the last three decades. Positive Sea Surface Temperature anomalies, particularly in 1998 and 2010, including high winter minimum temperatures, provide an ideal oceanographic context to favour the arrival of new individuals and, consequently, the increase in the number of sightings in Gran Canaria. Still, potential donor areas of fish recruits remain unknown.

scholarly journals Warming, not CO2-acidified seawater, alters otolith development of juvenile Antarctic emerald rockcod (Trematomus bernacchii)

Polar Biology ◽  
2021 ◽  
Author(s):  
Andrew W. Naslund ◽  
Brittany E. Davis ◽  
James A. Hobbs ◽  
Nann A. Fangue ◽  
Anne E. Todgham
Keyword(s):  
Fossil Fuels ◽  
Marine Species ◽  
Ocean Warming ◽  
Antarctic Species ◽  
Antarctic Fishes ◽  
Polar Species ◽  
Physiological Limits ◽  
Length Width ◽  
Trematomus Bernacchii ◽  
Projected Changes

AbstractThe combustion of fossil fuels is currently causing rapid rates of ocean warming and acidification worldwide. Projected changes in these parameters have been repeatedly observed to stress the physiological limits and plasticity of many marine species from the molecular to organismal levels. High latitude oceans are among the fastest changing ecosystems; therefore, polar species are projected to be some of the most vulnerable to climate change. Antarctic species are particularly sensitive to environmental change, having evolved for millions of years under stable ocean conditions. Otoliths, calcified structures found in a fish’s inner ear used to sense movement and direction, have been shown to be affected by both warming and CO2-acidified seawater in temperate and tropical fishes but there is no work to date on Antarctic fishes. In this study, juvenile emerald rockcod (Trematomus bernacchii) were exposed to projected seawater warming and CO2-acidification for the year 2100 over 28 days. Sagittal otoliths were analyzed for changes in area, perimeter, length, width and shape. We found ocean warming increased the growth rate of otoliths, while CO2-acidified seawater and the interaction of warming and acidification did not have an effect on otolith development. Elevated temperature also altered the shape of otoliths. If otolith development is altered under future warming scenarios, sensory functions such as hearing, orientation, and movement may potentially be impaired. Changes in these basic somatic abilities could have broad implications for the general capabilities and ecology of early life stages of Antarctic fishes.

Marine species distribution shifts on the U.S. Northeast Continental Shelf under continued ocean warming

2017 ◽  
Vol 153 ◽  
pp. 24-36 ◽  
Author(s):  
Kristin M. Kleisner ◽  
Michael J. Fogarty ◽  
Sally McGee ◽  
Jonathan A. Hare ◽  
Skye Moret ◽  
...  
Keyword(s):  
Continental Shelf ◽  
Species Distribution ◽  
Marine Species ◽  
Ocean Warming ◽  
Distribution Shifts ◽  
The U.S

High predatory efficiency and abundance drive expected ecological impacts of a marine invasive fish

2020 ◽  
Vol 637 ◽  
pp. 195-208 ◽  
Author(s):  
EM DeRoy ◽  
R Scott ◽  
NE Hussey ◽  
HJ MacIsaac
Keyword(s):  
Invasive Species ◽  
Native Species ◽  
Ecological Impact ◽  
Marine Species ◽  
Ecological Impacts ◽  
Negative Effects ◽  
Marine Predator ◽  
Eastern Gulf Of Mexico ◽  
Red Grouper ◽  
Per Capita

The ecological impacts of invasive species are highly variable and mediated by many factors, including both habitat and population abundance. Lionfish Pterois volitans are an invasive marine species which have high reported detrimental effects on prey populations, but whose effects relative to native predators are currently unknown for the recently colonized eastern Gulf of Mexico. We used functional response (FR) methodology to assess the ecological impact of lionfish relative to 2 functionally similar native species (red grouper Epinephelus morio and graysby grouper Cephalopholis cruentata) foraging in a heterogeneous environment. We then combined the per capita impact of each species with their field abundance to obtain a Relative Impact Potential (RIP). RIP assesses the broader ecological impact of invasive relative to native predators, the magnitude of which predicts community-level negative effects of invasive species. Lionfish FR and overall consumption rate was intermediate to that of red grouper (higher) and graysby grouper (lower). However, lionfish had the highest capture efficiency of all species, which was invariant of habitat. Much higher field abundance of lionfish resulted in high RIPs relative to both grouper species, demonstrating that the ecological impact of lionfish in this region will be driven mainly by high abundance and high predator efficiency rather than per capita effect. Our comparative study is the first empirical assessment of lionfish per capita impact and RIP in this region and is one of few such studies to quantify the FR of a marine predator.

Geolocation estimation of marine species using a high resolution light tag

OCEANS 2009 ◽  
2009 ◽  
Author(s):  
Prajas John ◽  
Jaison Peter ◽  
Adrine Antony Correya ◽  
M. H. Supriya ◽  
P. R. Saseendran Pillai
Keyword(s):  
High Resolution ◽  
Marine Species
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