#carangidae

[snototter]

A school of yellowtail horse mackerel, or yakka (Trachurus novaezelandiae) at Jervis Bay, NSW, Australia

by John Turnbull

[herpsandbirds]

Golden Trevally (Gnathanodon speciosus), juveniles, family Carangidae, order Carangiformes, school near the front of a Manta Ray (Mobula sp.), family Mobulidae, order Myliobatiformes in the South Pacific

photograph by Jake Wilton (@jakewiltonphoto)

[todropscience]

FISH EAT MICROPLASTIC BECAUSE IT LOOKS LIKE PREY

Fish may be actively seeking out microplastic in the oceans as the tiny pieces looks similar to their natural prey, research suggests. 

Plastic pollution is a BIG problem for our oceans nowaday. As results, over 50 species of fish have been found to consume plastic trash at sea, and the list is expanded as more research is done. The factors influencing the ingestion of microplastics by fish remain unclear despite their importance to a better understanding of the routes of microplastics through marine food webs. 

According to the study, Amberstripe scads (Decapterus muroadsi), a common fish along the coast of Rapa Nui (Easter Island) have ingest microplastics, mainly blue polyethylene fragments that were similar in colour and size to blue copepod species consumed by the same fish. Amberstripe scads is a planktivorous fish, as a consequence of their feeding behaviour as visual predators, are directly exposed to floating microplastics. Despite scad have a preference for other colored microplastics, as orange and white, the proportion of blue microplastics in scad guts was higher than expected by their proportion in water samples.

This threat may be exacerbated in the clear oceanic waters of the subtropical gyres, where anthropogenic litter accumulates in great quantity. Microplastics may induce deleterious effects to the organisms that ingested them.  Specifically, the shape of a particle may reflect its potential to cause harm. 

Photo:  Examples of  blue microplastics in Amberstripe scads digestive tracts, and copepod prey  in superficial water along the coast of Rapa Nui (Easter Island). Scale bars represent 0.5 mm.

Photo:  Amberstripe scads by Paddy Ryan.

Reference (Open Access): Ory et al., 2017  Amberstripe scad Decapterus muroadsi (Carangidae) fish ingest blue microplastics resembling their copepod prey along the coast of Rapa Nui (Easter Island) in the South Pacific subtropical gyre.  Science of the Total Environment

[mondaymorgue]

Snubnose Pompano (Trachinotus blochii) Changi, 8th January 2017

Many of the offshore fish farms in the Straits of Johor raise Snubnose Pompano for human consumption, so this carcass could have come from one of the farmed fishes, instead of being of wild origin.

A Guide to Common Marine Fishes of Singapore

Fishing the Philippines

Field Guide to Lombok Island

Fishes of Australia

Australian Museum

The Living Marine Resources of the Western Central Pacific Volume 4

FAO Cultured Aquatic Species Fact Sheets

FishBase

IUCN Red List

[herpsandbirds]

Whale Shark (Rhincodon typus), family Rhincodontidae, with juuvenile Golden Trevally (Gnathanodon speciosus), family Carangidae, Pacific Ocean

ENDANGERED.

Whale Sharks are known as the largest fish in the world., up to 72 ft. long.

Golden Trevally have their bright yellow coloration as juveniles, and then turn silvery as adult.

Photograph by Alex Kydd Photography

[intotheblue-it]

Ricciola Yellowtail Seriola Dumerili Carangidae intotheblue.it

http://www.intotheblue.it/2019/11/14/amberjack-or-yellowtail-seriola-dumerili/

[intotheblue-it]

Leccia Stella Trachinotus ovatus Palometa blanca intotheblue.it

Leccia Stella, Trachinotus ovatus, The Pompano, Palometa blanca, intotheblue.it, intotheblue, carangide, carangidae, Isola Elba, Fetovaia, Mediterraneo

http://www.intotheblue.it/2019/09/08/the-pompano-palometa-blanca-trachinotus-ovatus/

[intotheblue-it]

Leccia Stella Maculata Trachinotus Baillonii Smallspotted dart intotheblue.it

Leccia Stella Maculata Trachinotus Baillonii Smallspotted dart intotheblue.it, great barrier, reef, oceans, carangidae, family, into the blue, intotheblue

http://www.intotheblue.it/2019/01/30/leccia-stella-maculata/