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Haddock SHD, Choy CA. Life in the Midwater: The Ecology of Deep Pelagic Animals. ANNUAL REVIEW OF MARINE SCIENCE 2024; 16:383-416. [PMID: 38231738 DOI: 10.1146/annurev-marine-031623-095435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
The water column of the deep ocean is dark, cold, low in food, and under crushing pressures, yet it is full of diverse life. Due to its enormous volume, this mesopelagic zone is home to some of the most abundant animals on the planet. Rather than struggling to survive, they thrive-owing to a broad set of adaptations for feeding, behavior, and physiology. Our understanding of these adaptations is constrained by the tools available for exploring the deep sea, but this tool kit is expanding along with technological advances. Each time we apply a new method to the depths, we gain surprising insights about genetics, ecology, behavior, physiology, diversity, and the dynamics of change. These discoveries show structure within the seemingly uniform habitat, limits to the seemingly inexhaustible resources, and vulnerability in the seemingly impervious environment. To understand midwater ecology, we need to reimagine the rules that govern terrestrial ecosystems. By spending more time at depth-with whatever tools are available-we can fill the knowledge gaps and better link ecology to the environment throughout the water column.
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Affiliation(s)
- Steven H D Haddock
- Monterey Bay Aquarium Research Institute, Moss Landing, California, USA;
| | - C Anela Choy
- Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, USA;
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Chen G, Xu W, Han D, Wang C, Ye S. Application of high-throughput sequencing to analyze the diet of black croaker (Atrobucca nibe) in southern coastal waters of Zhejiang. MARINE ENVIRONMENTAL RESEARCH 2023; 191:106153. [PMID: 37633172 DOI: 10.1016/j.marenvres.2023.106153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 07/15/2023] [Accepted: 08/16/2023] [Indexed: 08/28/2023]
Abstract
This study investigated the feeding habits of black croaker (Atrobucca nibe) to fully understand its role in the food web in southern coastal waters of Zhejiang, China. In total, 225 black croakers were collected in a bottom trawl survey, of which 195 were used for the stomach contents analysis and 30 for high-throughput sequencing (HTS). Both approaches showed that the main prey was shrimp, with Alpheus japonicus being the most predominant. In addition, black croaker also fed on other benthic species, suggesting that it was a demersal predator. Feeding intensity also varied with black croaker body length, as did prey preference, from small-sized species to larger species with increases in fish size; in addition, prey species were more diverse in the large-bodied prey group. Canonical correspondence analysis indicated that the feeding habit of black croaker was most significantly correlated with temperature and dissolved oxygen. HTS was shown to be a feasible high precision semi-quantitative analytical approach, although it must be combined with morphological methods to obtain more complete feeding data; thus, it could provide an effective scientific basis for feeding ecology studies of marine organisms.
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Affiliation(s)
- Gan Chen
- College of Marine Science, Shanghai Ocean University, Shanghai, 201306, China; National Distant-water Fisheries Engineering Research Center, Shanghai, 201306, China; National Data Centre for Distant-Water Fisheries of China, Shanghai, 201306, China
| | - Wen Xu
- College of Marine Science, Shanghai Ocean University, Shanghai, 201306, China; National Distant-water Fisheries Engineering Research Center, Shanghai, 201306, China; National Data Centre for Distant-Water Fisheries of China, Shanghai, 201306, China
| | - Dongyan Han
- College of Marine Science, Shanghai Ocean University, Shanghai, 201306, China; National Distant-water Fisheries Engineering Research Center, Shanghai, 201306, China; National Data Centre for Distant-Water Fisheries of China, Shanghai, 201306, China.
| | - Congcong Wang
- College of Marine Science, Shanghai Ocean University, Shanghai, 201306, China; National Distant-water Fisheries Engineering Research Center, Shanghai, 201306, China; National Data Centre for Distant-Water Fisheries of China, Shanghai, 201306, China.
| | - Shen Ye
- Zhejiang Maricultural Research Institute, Wenzhou, 325005, Zhejiang, China; Zhejiang Key Laboratory of Exploitation and Preservation of Offshore Bio-resource, Wenzhou, 325005, Zhejiang, China
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Hoffman JI, Heesch S, Clark MS. Editorial: Polar Genomics in a Changing World. Genes (Basel) 2023; 14:1395. [PMID: 37510300 PMCID: PMC10379204 DOI: 10.3390/genes14071395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 06/19/2023] [Indexed: 07/30/2023] Open
Abstract
Polar regions play critical roles in the function of the Earth's climate system, many of which are underpinned by their endemic biota [...].
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Affiliation(s)
- Joseph Ivan Hoffman
- Department of Animal Behavior, University of Bielefeld, Postfach 10 01 31, 33615 Bielefeld, Germany
- British Antarctic Survey, High Cross, Madingley Road, Cambridge CB3 OET, UK
| | - Svenja Heesch
- Applied Ecology & Phycology, Institute for Biosciences, University of Rostock, 18059 Rostock, Germany
| | - Melody Susan Clark
- British Antarctic Survey, High Cross, Madingley Road, Cambridge CB3 OET, UK
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