{"title":"Volume scattering function measured in the oceans and lakes (2009–2024)","authors":"Yuanheng Xiong, Deric Gray, Yannick Huot, Xiaodong Zhang","doi":"10.1002/lol2.70138","DOIUrl":"https://doi.org/10.1002/lol2.70138","url":null,"abstract":"<p>Volume scattering function (VSF) is a fundamental inherent optical property but has been scarcely measured in natural environments. To address this observational gap, we compiled a dataset of non-water, particle VSFs (<i>β</i><sub><i>p</i></sub>) measured in a variety of waters, covering inland, coastal, and open oceans. A total of 1013 <i>β</i><sub><i>p</i></sub> with an overall ≤ 1° angular resolution at scattering angles between 0° and 180° were acquired using two instruments, a prototype device, MVSM, and a commercial device, LISST-VSF. Inter-instrument consistency was demonstrated by comparison of 150 pairs of <i>β</i><sub><i>p</i></sub> that were measured simultaneously by both instruments. Additional optical properties such as scattering coefficient (<i>b</i><sub><i>p</i></sub>), backscattering coefficient (<i>b</i><sub><i>bp</i></sub>), scattering phase function (<i>β̃</i><sub><i>p</i></sub>), and backscattering shape factor (<i>χ</i><sub><i>p</i></sub>) can be easily derived. The dataset and its derived products are expected to provide much needed in situ angular scattering data by natural aquatic particles to support studies in ocean optics and biogeochemistry.</p>","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"11 3","pages":""},"PeriodicalIF":5.0,"publicationDate":"2026-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.70138","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148048299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Volume scattering function measured in the oceans and lakes (2009–2024)","authors":"Yuanheng Xiong, Deric Gray, Yannick Huot, Xiaodong Zhang","doi":"10.1002/lol2.70138","DOIUrl":"https://doi.org/10.1002/lol2.70138","url":null,"abstract":"<p>Volume scattering function (VSF) is a fundamental inherent optical property but has been scarcely measured in natural environments. To address this observational gap, we compiled a dataset of non-water, particle VSFs (<i>β</i><sub><i>p</i></sub>) measured in a variety of waters, covering inland, coastal, and open oceans. A total of 1013 <i>β</i><sub><i>p</i></sub> with an overall ≤ 1° angular resolution at scattering angles between 0° and 180° were acquired using two instruments, a prototype device, MVSM, and a commercial device, LISST-VSF. Inter-instrument consistency was demonstrated by comparison of 150 pairs of <i>β</i><sub><i>p</i></sub> that were measured simultaneously by both instruments. Additional optical properties such as scattering coefficient (<i>b</i><sub><i>p</i></sub>), backscattering coefficient (<i>b</i><sub><i>bp</i></sub>), scattering phase function (<i>β̃</i><sub><i>p</i></sub>), and backscattering shape factor (<i>χ</i><sub><i>p</i></sub>) can be easily derived. The dataset and its derived products are expected to provide much needed in situ angular scattering data by natural aquatic particles to support studies in ocean optics and biogeochemistry.</p>","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"11 3","pages":""},"PeriodicalIF":5.0,"publicationDate":"2026-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.70138","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148048302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The role of edible habitat complexity in food webs","authors":"Eden J. Forbes, Jason D. Stockwell","doi":"10.1002/lol2.70133","DOIUrl":"https://doi.org/10.1002/lol2.70133","url":null,"abstract":"<p>Habitat complexity (HC) in part determines the diversity, stability, and behavior of food webs and can influence predation according to a wide variety of functional relationships. Many aquatic species provide HC and are also consumed by other species (e.g., macrophytes, corals, mussels). However, food web theory does not readily account for these species that act as “edible habitat complexity”. We combine existing theory on consumer–resource interactions, HC, and prey switching to describe the role of edible habitat complexity in benthic food web models. We dissect feedback loops in a series of models to demonstrate how self-regulation of the prey species, mediated by species densities and HC, drives that model's behavior. Habitat complexity can stabilize consumer–resource interactions by coupling prey self-regulation with HC self-regulation. Edible habitat complexity can further stabilize consumer–resource interactions across a wide variety of “HC functions” that relate HC to predation rates.</p>","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"11 3","pages":""},"PeriodicalIF":5.0,"publicationDate":"2026-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.70133","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148048300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The role of edible habitat complexity in food webs","authors":"Eden J. Forbes, Jason D. Stockwell","doi":"10.1002/lol2.70133","DOIUrl":"https://doi.org/10.1002/lol2.70133","url":null,"abstract":"<p>Habitat complexity (HC) in part determines the diversity, stability, and behavior of food webs and can influence predation according to a wide variety of functional relationships. Many aquatic species provide HC and are also consumed by other species (e.g., macrophytes, corals, mussels). However, food web theory does not readily account for these species that act as “edible habitat complexity”. We combine existing theory on consumer–resource interactions, HC, and prey switching to describe the role of edible habitat complexity in benthic food web models. We dissect feedback loops in a series of models to demonstrate how self-regulation of the prey species, mediated by species densities and HC, drives that model's behavior. Habitat complexity can stabilize consumer–resource interactions by coupling prey self-regulation with HC self-regulation. Edible habitat complexity can further stabilize consumer–resource interactions across a wide variety of “HC functions” that relate HC to predation rates.</p>","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"11 3","pages":""},"PeriodicalIF":5.0,"publicationDate":"2026-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.70133","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148048303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Camila Carvalho de Carvalho, Emma Deeks, Leandro L. Ciotti, Silvina Botta, Miriam Marmontel, Margareth Copertino, Fábia de Oliveira Luna, Fernanda Niemeyer Löffer Attademo, Vitor Luz Carvalho, João Carlos Gomes Borges, Alexandra Fernandes Costa, Renata Emin-Lima, Pavel Kratina, Eduardo Resende Secchi
{"title":"American manatees adjust their diet composition and trophic niche breadth across different coastal regions","authors":"Camila Carvalho de Carvalho, Emma Deeks, Leandro L. Ciotti, Silvina Botta, Miriam Marmontel, Margareth Copertino, Fábia de Oliveira Luna, Fernanda Niemeyer Löffer Attademo, Vitor Luz Carvalho, João Carlos Gomes Borges, Alexandra Fernandes Costa, Renata Emin-Lima, Pavel Kratina, Eduardo Resende Secchi","doi":"10.1002/lol2.70127","DOIUrl":"https://doi.org/10.1002/lol2.70127","url":null,"abstract":"<p>Marine mammals can exhibit high plasticity in foraging strategies, but how such plasticity is driven by environmental conditions is poorly understood. The American manatee (<i>Trichechus manatus</i>), a large, endangered herbivore, inhabits marine, estuarine, and freshwater environments. To better understand their resource use, we analyzed dietary differences across three large Brazilian regions—the Northern Coast (NC), Dry-Northeastern Coast (Dry-NEC), and Humid-Northeastern Coast (Humid-NEC). The δ<sup>13</sup>C and δ<sup>15</sup>N values of manatee tissues increased from the NC to the Northeastern Coast. Stable isotope mixing models revealed that manatees from the Dry-NEC feed almost exclusively on seagrasses, while those from the NC rely predominantly on saltmarsh vegetation. In the Humid-NEC, manatees had a notable contribution from macroalgae, and exhibited the greatest dietary and habitat use diversity among the regions. These spatial patterns advance our understanding of large-scale habitat use, guiding the establishment of marine protected areas to safeguard manatees and their habitats.</p>","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"11 3","pages":""},"PeriodicalIF":5.0,"publicationDate":"2026-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.70127","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148047547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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