Acartia simplex
Encyclopedia
Acartia simplex is a species of marine copepod
belonging to the family Acartiidae
. This species, just under 1 mm in length, is rather similar to Acartia ensifera
but can be distinguished by the presence of spines on the dorsal
part of the posterior body segment (metasome). Like A. ensifera, it is found around the coasts of New Zealand
, mainly in estuarine habitats.
Copepod
Copepods are a group of small crustaceans found in the sea and nearly every freshwater habitat. Some species are planktonic , some are benthic , and some continental species may live in limno-terrestrial habitats and other wet terrestrial places, such as swamps, under leaf fall in wet forests,...
belonging to the family Acartiidae
Acartiidae
Acartiidae is a family of calanoid copepods distinguishable by the rostral margin not being extended. They are epipelagic, planktonic animals, not being found below a depth of . There are over 100 described species distributed throughout the world's oceans, mainly in temperate areas....
. This species, just under 1 mm in length, is rather similar to Acartia ensifera
Acartia ensifera
Acartia ensifera is a species of marine copepod belonging to the family Acartiidae. This is a slender copepod, around 0.8 - 0.9 mm in length, with distinctively long caudal rami. It is found around the coasts of New Zealand .-References:*...
but can be distinguished by the presence of spines on the dorsal
Dorsum (biology)
In anatomy, the dorsum is the upper side of animals that typically run, fly, or swim in a horizontal position, and the back side of animals that walk upright. In vertebrates the dorsum contains the backbone. The term dorsal refers to anatomical structures that are either situated toward or grow...
part of the posterior body segment (metasome). Like A. ensifera, it is found around the coasts of New Zealand
New Zealand
New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...
, mainly in estuarine habitats.