TY  - JOUR
A1  - Knauber, Henry
A1  - Kohlenbach, Katharina
A1  - Brandt, Angelika
A1  - Saeedi, Hanieh
T1  - Crustaceans of the Northwest Pacific Ocean: Species richness and distribution patterns
T2  - Journal of sea research
N2  - Biodiversity patterns of marine crustaceans are still unknown in many locations or might have been overlooked due to our knowledge gaps, despite increasing sampling and data sharing efforts during the last decades. By analysing big data extracted from open portals such as Ocean Biodiversity Information System (OBIS) and Global Biodiversity Information System (GBIF), we aim to revisit the distribution and biodiversity patterns of the highly speciose and abundant Crustacea in the Northwest Pacific (NWP) from shallowest depths to the deep sea. This study focussed on selected benthic and pelagic crustacean (sub) classes and their species richness, sampling effort, and expected species richness (ES50) using equal/sized hexagonal cells, 5° latitudinal bands, 500 m depth intervals were analyzed. Crustacean species richness was highest in the tropical Philippines as well as around the Japanese islands. Pelagic crustacean species richness peaked at 30° latitude and declined beyond that. Benthic taxa; however, depicted high levels of species richness across most of the latitudinal gradient, reaching its highest point at 45° latitude. Due to the prevalence of certain crustacean orders in the deep sea, benthic species richness showed a distribution pattern with two distinct peaks across bathymetric gradients; with highest species richness recorded at shallow-water depths and also at abyssal depths. The most important environmental drivers of benthic and pelagic crustacean species richness were primary productivity (positive correlation) and salinity (negative correlation). Our study provides first insights into biodiversity patterns of the highly diverse Crustacea in the NWP and highlights strong differences between benthic and pelagic taxa. The results presented here could help us to better understand whether benthic or pelagic taxa might respond differently to climate changes in the NWP based on their distinct physiological and biological characteristics. This information is crucial in establishing species management strategies and ecosystem restorations in both shallow water and deep-sea environments.
KW  - Benthos
KW  - Biogeography
KW  - Crustacea
KW  - Deep sea
KW  - Pelagic
KW  - Shallow water
KW  - Species richness
Y1  - 2022
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/78793
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-787934
SN  - 1873-1414
N1  - Funding: BMBF ; 03F0780A
N1  - Funding: BMBF ; 03F0833A
N1  - Funding: BMBF ; 030G249A
N1  - Data availability
The dataset of additional occurrence records from the SO-249 expedition in the Bering Sea is planned to be shared via OBIS and GBIF soon. Meanwhile all the R codes and dataset is available upon request.
N1  - Gefördert durch den Open-Access-Publikationsfonds der Goethe-Universität
VL  - 191
IS  - art. 102332
SP  - 1
EP  - 12
PB  - Elsevier Science
CY  - Amsterdam [u.a.]
ER  -