Problem
Threatened species of Chaetognatha
Other Names:
Endangered species of arrow wormsChaetognaths under threat of extinction
Nature:
A March 3 1995 edition of the journal Science, reported that the population of zooplankton in the waters off the coast of Southern California had declined by 70 percent in the last 42 years. The observed decline may be linked to a warming of the ocean surface in the region over the same time period. Arrow worms and other zooplankton form a vital link near the base of the food chain, a decline in their numbers could pose a threat to other marine life.
Background:
Planktonic carnivores seldom exceeding 3 cm long. Also known as "Tigers of the zooplankton" There are 60 species of arrow worms.
Broader Problems:
Threatened species of Invertebrates Strategies:
Maintaining biodiversity of marine species Values:
EndangeredExtinctionThreat Subject(s):
Defence → ArmsInvertebrates → Helminthes, annelida
Societal Problems → Destruction
Societal Problems → Endangered species
Related UN Sustainable Development Goals:
Problem Type:
C: Cross-sectoral problems Date of last update
16.04.2019 – 15:37 CEST