Global patterns of species richness in coastal cephalapods
Within the context of global climate change and overfishing of fish stocks, there is some evidence that cephalopod populations are benefiting from this changing setting. These invertebrates show enhanced phenotypic flexibility and are found from polar regions to the tropics. Yet, the global patterns...
Published in: | Frontiers in Marine Science |
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ftusouthflorida:oai:digital.stpetersburg.usf.edu:fac_publications-4789 2023-05-15T15:03:48+02:00 Global patterns of species richness in coastal cephalapods Rosa, Rui Pissara, Vasco Borges, Francisco O. Xavier, Jose Gleadall, Ian G. Golikov, Alexey Bello, Giamattista Morais, Liliane Lishchenko, Fedor Roura, Alvaro Judkins, Heather L. 2019-01-01T08:00:00Z https://digital.stpetersburg.usf.edu/fac_publications/3814 https://doi.org/10.3389/fmars.2019.00469 unknown Digital Archive https://digital.stpetersburg.usf.edu/fac_publications/3814 https://doi.org/10.3389/fmars.2019.00469 http://creativecommons.org/licenses/by-nc-nd/4.0/ CC-BY-NC-ND Faculty Publications biogeography mollusk cephalapod cuttlefish squid octopus species richness biodiversity Biology Other Geography text 2019 ftusouthflorida https://doi.org/10.3389/fmars.2019.00469 2021-02-05T17:17:12Z Within the context of global climate change and overfishing of fish stocks, there is some evidence that cephalopod populations are benefiting from this changing setting. These invertebrates show enhanced phenotypic flexibility and are found from polar regions to the tropics. Yet, the global patterns of species richness in coastal cephalopods are not known. Here, among the 370 identified-species, 164 are octopuses, 96 are cuttlefishes, 54 are bobtails and bottletails, 48 are inshore squids and 8 are pygmy squids. The most diverse ocean is the Pacific (with 213 cephalopod species), followed by the Indian (146 species) and Atlantic (95 species). The least diverse are the Southern (15 species) and the Arctic (12 species) Oceans. Endemism is higher in the Southern Ocean (87%) and lower in the Arctic (25%), which reflects the younger age and the “Atlantification” of the latter. The former is associated with an old lineage of octopuses that diverged around 33 Mya. Within the 232 ecoregions considered, the highest values of octopus and cuttlefish richness are observed in the Central Kuroshio Current ecoregion (with a total of 64 species), followed by the East China Sea (59 species). This pattern suggests dispersal in the Central Indo-Pacific (CIP) associated with the highly productive Oyashio/Kuroshio current system. In contrast, inshore squid hotspots are found within the CIP, namely in the Sunda Shelf Province, which may be linked to the occurrence of an ancient intermittent biogeographic barrier: a land bridge formed during the Pleistocene which severely restricted water flow between the Pacific and Indian Oceans, thereby facilitating squid fauna differentiation. Another marked pattern is a longitudinal richness cline from the Central (CIP) toward the Eastern Indo-Pacific (EIP) realm, with central Pacific archipelagos as evolutionary dead ends. In the Atlantic Ocean, closure of the Atrato Seaway (at the Isthmus of Panama) and Straits of Gibraltar (Mediterranean Sea) are historical processes that may explain the contemporary Caribbean octopus richness and Mediterranean sepiolid endemism, respectively. Last, we discuss how the life cycles and strategies of cephalopods may allow them to adapt quickly to future climate change and extend the borealization of their distribution. Text Arctic Climate change Southern Ocean University of South Florida St. Petersburg: Digital USFSP Arctic Indian Oyashio ENVELOPE(157.000,157.000,50.000,50.000) Pacific Southern Ocean Sunda ENVELOPE(-6.982,-6.982,62.205,62.205) Frontiers in Marine Science 6 |
institution |
Open Polar |
collection |
University of South Florida St. Petersburg: Digital USFSP |
op_collection_id |
ftusouthflorida |
language |
unknown |
topic |
biogeography mollusk cephalapod cuttlefish squid octopus species richness biodiversity Biology Other Geography |
spellingShingle |
biogeography mollusk cephalapod cuttlefish squid octopus species richness biodiversity Biology Other Geography Rosa, Rui Pissara, Vasco Borges, Francisco O. Xavier, Jose Gleadall, Ian G. Golikov, Alexey Bello, Giamattista Morais, Liliane Lishchenko, Fedor Roura, Alvaro Judkins, Heather L. Global patterns of species richness in coastal cephalapods |
topic_facet |
biogeography mollusk cephalapod cuttlefish squid octopus species richness biodiversity Biology Other Geography |
description |
Within the context of global climate change and overfishing of fish stocks, there is some evidence that cephalopod populations are benefiting from this changing setting. These invertebrates show enhanced phenotypic flexibility and are found from polar regions to the tropics. Yet, the global patterns of species richness in coastal cephalopods are not known. Here, among the 370 identified-species, 164 are octopuses, 96 are cuttlefishes, 54 are bobtails and bottletails, 48 are inshore squids and 8 are pygmy squids. The most diverse ocean is the Pacific (with 213 cephalopod species), followed by the Indian (146 species) and Atlantic (95 species). The least diverse are the Southern (15 species) and the Arctic (12 species) Oceans. Endemism is higher in the Southern Ocean (87%) and lower in the Arctic (25%), which reflects the younger age and the “Atlantification” of the latter. The former is associated with an old lineage of octopuses that diverged around 33 Mya. Within the 232 ecoregions considered, the highest values of octopus and cuttlefish richness are observed in the Central Kuroshio Current ecoregion (with a total of 64 species), followed by the East China Sea (59 species). This pattern suggests dispersal in the Central Indo-Pacific (CIP) associated with the highly productive Oyashio/Kuroshio current system. In contrast, inshore squid hotspots are found within the CIP, namely in the Sunda Shelf Province, which may be linked to the occurrence of an ancient intermittent biogeographic barrier: a land bridge formed during the Pleistocene which severely restricted water flow between the Pacific and Indian Oceans, thereby facilitating squid fauna differentiation. Another marked pattern is a longitudinal richness cline from the Central (CIP) toward the Eastern Indo-Pacific (EIP) realm, with central Pacific archipelagos as evolutionary dead ends. In the Atlantic Ocean, closure of the Atrato Seaway (at the Isthmus of Panama) and Straits of Gibraltar (Mediterranean Sea) are historical processes that may explain the contemporary Caribbean octopus richness and Mediterranean sepiolid endemism, respectively. Last, we discuss how the life cycles and strategies of cephalopods may allow them to adapt quickly to future climate change and extend the borealization of their distribution. |
format |
Text |
author |
Rosa, Rui Pissara, Vasco Borges, Francisco O. Xavier, Jose Gleadall, Ian G. Golikov, Alexey Bello, Giamattista Morais, Liliane Lishchenko, Fedor Roura, Alvaro Judkins, Heather L. |
author_facet |
Rosa, Rui Pissara, Vasco Borges, Francisco O. Xavier, Jose Gleadall, Ian G. Golikov, Alexey Bello, Giamattista Morais, Liliane Lishchenko, Fedor Roura, Alvaro Judkins, Heather L. |
author_sort |
Rosa, Rui |
title |
Global patterns of species richness in coastal cephalapods |
title_short |
Global patterns of species richness in coastal cephalapods |
title_full |
Global patterns of species richness in coastal cephalapods |
title_fullStr |
Global patterns of species richness in coastal cephalapods |
title_full_unstemmed |
Global patterns of species richness in coastal cephalapods |
title_sort |
global patterns of species richness in coastal cephalapods |
publisher |
Digital Archive |
publishDate |
2019 |
url |
https://digital.stpetersburg.usf.edu/fac_publications/3814 https://doi.org/10.3389/fmars.2019.00469 |
long_lat |
ENVELOPE(157.000,157.000,50.000,50.000) ENVELOPE(-6.982,-6.982,62.205,62.205) |
geographic |
Arctic Indian Oyashio Pacific Southern Ocean Sunda |
geographic_facet |
Arctic Indian Oyashio Pacific Southern Ocean Sunda |
genre |
Arctic Climate change Southern Ocean |
genre_facet |
Arctic Climate change Southern Ocean |
op_source |
Faculty Publications |
op_relation |
https://digital.stpetersburg.usf.edu/fac_publications/3814 https://doi.org/10.3389/fmars.2019.00469 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.3389/fmars.2019.00469 |
container_title |
Frontiers in Marine Science |
container_volume |
6 |
_version_ |
1766335653443796992 |