Marine Invertebrates: Communities at Risk

Our definition of the word ‘animal’ centers on vertebrates, yet 99% of the animals on the planet are invertebrates, about which we know little. In addition, although the Census of Marine Life (COML.org) has recently conducted an extensive audit of marine ecosystems, we still do not understand much a...

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Main Author: Jennifer Mather
Format: Article
Language:English
Published: MDPI AG 2013-06-01
Series:Biology
Subjects:
Online Access:http://www.mdpi.com/2079-7737/2/2/832
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author Jennifer Mather
author_facet Jennifer Mather
author_sort Jennifer Mather
collection DOAJ
description Our definition of the word ‘animal’ centers on vertebrates, yet 99% of the animals on the planet are invertebrates, about which we know little. In addition, although the Census of Marine Life (COML.org) has recently conducted an extensive audit of marine ecosystems, we still do not understand much about the animals of the seas. Surveys of the best-known ecosystems, in which invertebrate populations often play a key role, show that the invertebrate populations are affected by human impact. Coral animals are the foundation of coral reef systems, which are estimated to contain 30% of the species in the ocean. Physical impact and chemical changes on the water severely damage these reefs, and may lead to the removal of these important habitats. Tiny pteropod molluscs live in huge numbers in the polar seas, and their fragile shells are particularly vulnerable to ocean acidification. Their removal would mean that fishes on which we depend would have a hugely diminished food supply. In the North Sea, warming is leading to replacement of colder water copepods by warmer water species which contain less fat. This is having an effect on the birds which eat them, who enrich the otherwise poor land on which they nest. Conversely, the warming of the water and the loss of top predators such as whales and sharks has led to an explosion of the jumbo squid of the Pacific coast of North America. This is positive in the development of a squid fishery, yet negative because the squid eat fish that have been the mainstay of the fishery along that coast. These examples show how invertebrates are key in the oceans, and what might happen when global changes impact them.
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spelling doaj.art-6d993bca492743a0945a4b7264194f0b2023-09-02T20:21:10ZengMDPI AGBiology2079-77372013-06-012283284010.3390/biology2020832Marine Invertebrates: Communities at RiskJennifer MatherOur definition of the word ‘animal’ centers on vertebrates, yet 99% of the animals on the planet are invertebrates, about which we know little. In addition, although the Census of Marine Life (COML.org) has recently conducted an extensive audit of marine ecosystems, we still do not understand much about the animals of the seas. Surveys of the best-known ecosystems, in which invertebrate populations often play a key role, show that the invertebrate populations are affected by human impact. Coral animals are the foundation of coral reef systems, which are estimated to contain 30% of the species in the ocean. Physical impact and chemical changes on the water severely damage these reefs, and may lead to the removal of these important habitats. Tiny pteropod molluscs live in huge numbers in the polar seas, and their fragile shells are particularly vulnerable to ocean acidification. Their removal would mean that fishes on which we depend would have a hugely diminished food supply. In the North Sea, warming is leading to replacement of colder water copepods by warmer water species which contain less fat. This is having an effect on the birds which eat them, who enrich the otherwise poor land on which they nest. Conversely, the warming of the water and the loss of top predators such as whales and sharks has led to an explosion of the jumbo squid of the Pacific coast of North America. This is positive in the development of a squid fishery, yet negative because the squid eat fish that have been the mainstay of the fishery along that coast. These examples show how invertebrates are key in the oceans, and what might happen when global changes impact them.http://www.mdpi.com/2079-7737/2/2/832marine invertebratesclimate changeecosystem disruption
spellingShingle Jennifer Mather
Marine Invertebrates: Communities at Risk
Biology
marine invertebrates
climate change
ecosystem disruption
title Marine Invertebrates: Communities at Risk
title_full Marine Invertebrates: Communities at Risk
title_fullStr Marine Invertebrates: Communities at Risk
title_full_unstemmed Marine Invertebrates: Communities at Risk
title_short Marine Invertebrates: Communities at Risk
title_sort marine invertebrates communities at risk
topic marine invertebrates
climate change
ecosystem disruption
url http://www.mdpi.com/2079-7737/2/2/832
work_keys_str_mv AT jennifermather marineinvertebratescommunitiesatrisk