Pub Date : 2022-12-31DOI: 10.24275/uam/izt/dcbs/hidro/2022v32n3/ortegon
{"title":"Diversity of marine macroalgae and cyanoprokaryotes from the north coast of the Yucatan peninsula, México","authors":"","doi":"10.24275/uam/izt/dcbs/hidro/2022v32n3/ortegon","DOIUrl":"https://doi.org/10.24275/uam/izt/dcbs/hidro/2022v32n3/ortegon","url":null,"abstract":"","PeriodicalId":50407,"journal":{"name":"Hidrobiologica","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43682162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.24275/uam/izt/dcbs/hidro/2022v32n3/garate
Ismael Gárate-Lizárraga
Background. Illustrated records of the Podolampadaceae from Mexican waters are scarce. Goals. To study the thecal morphology of the genera Blepharocysta and Podolampas and to document the occurrence of planktonic species in both Atlantic and Pacific waters around Mexico were the main objectives of the present study. Methods. Bottle and net samples were taken from the water column in the southern Gulf of California (Baja California Sur state) and the southern Gulf of Mexico (Veracruz and Yucatan states) from 2008 to 2019. Light and scanning electron microscope (SEM) photos were taken, and observations on thecal morphology of the podolampadaceans were made. Results. Thecal morphology of Blepharocysta denticulata, B. okamurae, B. paulsenii, B. splendor-maris, Podolampas bipes, P. elegans, P. palmipes, P. reticulata and P. spinifera was examined; SEM micrographs of seven species are shown. Blepharocysta cells exhibited a wide variation of thecal features. Short descriptions are accompanied by references to publications that contain illustrations. The history of the study of the podolampadaceans is presented. Conclusions. Morphological data are not sufficient to confirm the status of some doubtful podolampadaceans or to clarify infraspecific, species and generic relationships within the family; therefore, molecular data are necessary.
{"title":"The family Podolampadaceae (Dinoflagellata) in Mexican waters","authors":"Ismael Gárate-Lizárraga","doi":"10.24275/uam/izt/dcbs/hidro/2022v32n3/garate","DOIUrl":"https://doi.org/10.24275/uam/izt/dcbs/hidro/2022v32n3/garate","url":null,"abstract":"Background. Illustrated records of the Podolampadaceae from Mexican waters are scarce. Goals. To study the thecal morphology of the genera Blepharocysta and Podolampas and to document the occurrence of planktonic species in both Atlantic and Pacific waters around Mexico were the main objectives of the present study. Methods. Bottle and net samples were taken from the water column in the southern Gulf of California (Baja California Sur state) and the southern Gulf of Mexico (Veracruz and Yucatan states) from 2008 to 2019. Light and scanning electron microscope (SEM) photos were taken, and observations on thecal morphology of the podolampadaceans were made. Results. Thecal morphology of Blepharocysta denticulata, B. okamurae, B. paulsenii, B. splendor-maris, Podolampas bipes, P. elegans, P. palmipes, P. reticulata and P. spinifera was examined; SEM micrographs of seven species are shown. Blepharocysta cells exhibited a wide variation of thecal features. Short descriptions are accompanied by references to publications that contain illustrations. The history of the study of the podolampadaceans is presented. Conclusions. Morphological data are not sufficient to confirm the status of some doubtful podolampadaceans or to clarify infraspecific, species and generic relationships within the family; therefore, molecular data are necessary.","PeriodicalId":50407,"journal":{"name":"Hidrobiologica","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45619574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.24275/uam/izt/dcbs/hidro/2022v32n3/lopez
Norma López
{"title":"Reef macroalgae of the South-Central Pacific of Mexico: State of the art","authors":"Norma López","doi":"10.24275/uam/izt/dcbs/hidro/2022v32n3/lopez","DOIUrl":"https://doi.org/10.24275/uam/izt/dcbs/hidro/2022v32n3/lopez","url":null,"abstract":"","PeriodicalId":50407,"journal":{"name":"Hidrobiologica","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44976834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.24275/uam/izt/dcbs/hidro/2022v32n3/villa
{"title":"Evaluation of the acceptability of diets formulated with hydrolyzed algae for juvenile abalone of Haliotis fulgens.","authors":"","doi":"10.24275/uam/izt/dcbs/hidro/2022v32n3/villa","DOIUrl":"https://doi.org/10.24275/uam/izt/dcbs/hidro/2022v32n3/villa","url":null,"abstract":"","PeriodicalId":50407,"journal":{"name":"Hidrobiologica","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47366773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-31DOI: 10.24275/uam/izt/dcbs/hidro/2022v32n2/pena
Yessica Peña-Pelayo
{"title":"Antibacterial activity of bacteria isolated from hydrothermal systems of Baja California Sur, Mexico","authors":"Yessica Peña-Pelayo","doi":"10.24275/uam/izt/dcbs/hidro/2022v32n2/pena","DOIUrl":"https://doi.org/10.24275/uam/izt/dcbs/hidro/2022v32n2/pena","url":null,"abstract":"","PeriodicalId":50407,"journal":{"name":"Hidrobiologica","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45146562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-31DOI: 10.24275/uam/izt/dcbs/hidro/2022v32n2/duran
O. Y. Durán-Rodríguez
Background. The spatial and temporal changes of assemblages of aquatic insect can be used to detect the anthropic impacts that influence the biological communities. Goals. We compared the assemblages of aquatic insect in 1997 and 2014 in two subtropical river drainages, the association with water characteristics, and we discuss their implications for ecosystems conservation. Methods . True diversity of the aquatic insect fauna at family level and their community structure for 27 study sites in 1997 and 2014 were assessed. Multivariate analyzes were used to compare aquatic insect assemblages and the abundance of functional feeding groups. Results . There were significant differences in the dissolved oxygen (DO) of the water between 1997 and 2014, decreasing its values. Other variables correlated to DO were also modified, with a decrease in pH and an increase in temperature. We found a correlation between reduction of DO and water pH with a decline in the overall abundance of aquatic insects; also, with shifts in the community structure, from the decrease of groups such as some Ephemeroptera and scrapers, to the increase in opportunistic families such as Chironomidae, Culicidae, and other predator families such as Coenagrionidae, Corixidae and Veliidae, and more abundance of collectors. Families such as Heptageniidae and Caenidae decreased in abundance, as well as other benthic groups. Conclusions . The assemblages of aquatic insect are useful to indicate a generalized degradation of environmental conditions across localities and time in two subtropical river drainages, related to water quality degradation symptoms such as reduction of pH levels and dissolved oxygen, usually associated with anthropogenic stressors.
{"title":"Spatial and temporal organization of aquatic insect assemblages in two subtropical river drainages","authors":"O. Y. Durán-Rodríguez","doi":"10.24275/uam/izt/dcbs/hidro/2022v32n2/duran","DOIUrl":"https://doi.org/10.24275/uam/izt/dcbs/hidro/2022v32n2/duran","url":null,"abstract":"Background. The spatial and temporal changes of assemblages of aquatic insect can be used to detect the anthropic impacts that influence the biological communities. Goals. We compared the assemblages of aquatic insect in 1997 and 2014 in two subtropical river drainages, the association with water characteristics, and we discuss their implications for ecosystems conservation. Methods . True diversity of the aquatic insect fauna at family level and their community structure for 27 study sites in 1997 and 2014 were assessed. Multivariate analyzes were used to compare aquatic insect assemblages and the abundance of functional feeding groups. Results . There were significant differences in the dissolved oxygen (DO) of the water between 1997 and 2014, decreasing its values. Other variables correlated to DO were also modified, with a decrease in pH and an increase in temperature. We found a correlation between reduction of DO and water pH with a decline in the overall abundance of aquatic insects; also, with shifts in the community structure, from the decrease of groups such as some Ephemeroptera and scrapers, to the increase in opportunistic families such as Chironomidae, Culicidae, and other predator families such as Coenagrionidae, Corixidae and Veliidae, and more abundance of collectors. Families such as Heptageniidae and Caenidae decreased in abundance, as well as other benthic groups. Conclusions . The assemblages of aquatic insect are useful to indicate a generalized degradation of environmental conditions across localities and time in two subtropical river drainages, related to water quality degradation symptoms such as reduction of pH levels and dissolved oxygen, usually associated with anthropogenic stressors.","PeriodicalId":50407,"journal":{"name":"Hidrobiologica","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49539557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-31DOI: 10.24275/uam/izt/dcbs/hidro/2022v32n2/calderon
L. Calderón-Aguilera
Background. Coastal communities are highly dependent on ecosystem services, but the benefits and livelihoods people derive from natural ecosystems are directly and indirectly affected by climate change. The need for a mechanistic understanding of how components of climate change translate into measurable impacts on ecosystems and society is fundamental to the ability to manage, plan and mitigate for the most likely environmental futures, yet progress in this area in tropical and subtropical countries is frustrated by a lack of research capacity at the local and regional level. Objectives. Here, we investigate the research capacity of the countries along the Pacific coast, between Mexico and Chile, a region with an extensive coastline (23,191 km) that spans 11 countries of varying socio-economic development status and anticipated to be especially vulnerable to climate change. Methods. Specifically, our focus was to explore how the effects of climate change on ecosystem services (provision, regulation and cultural) may relate to research capacity and gross domestic product (GDP) in each country along the Pacific coast of the Americas. Results. We find that, since 1980, the number of peer-reviewed scientific studies relevant to this topic strongly correlates with GDP (r = 0.90, p < 0.05) and that research effort is an order of magnitude lower along the Latin American Pacific coast (13.8 studies 1000 km -1 ) than in the neighbouring Californian coast (103 studies 1000 km -1 ). Conclusions. Our results highlight the need to better develop the research in the Latin America Pacific, and for more work on the key links between climate change and ecosystem services.
{"title":"Research capability gaps hinder understanding of the impact of climate change on ecosystem services in the Latin American Pacific coast","authors":"L. Calderón-Aguilera","doi":"10.24275/uam/izt/dcbs/hidro/2022v32n2/calderon","DOIUrl":"https://doi.org/10.24275/uam/izt/dcbs/hidro/2022v32n2/calderon","url":null,"abstract":"Background. Coastal communities are highly dependent on ecosystem services, but the benefits and livelihoods people derive from natural ecosystems are directly and indirectly affected by climate change. The need for a mechanistic understanding of how components of climate change translate into measurable impacts on ecosystems and society is fundamental to the ability to manage, plan and mitigate for the most likely environmental futures, yet progress in this area in tropical and subtropical countries is frustrated by a lack of research capacity at the local and regional level. Objectives. Here, we investigate the research capacity of the countries along the Pacific coast, between Mexico and Chile, a region with an extensive coastline (23,191 km) that spans 11 countries of varying socio-economic development status and anticipated to be especially vulnerable to climate change. Methods. Specifically, our focus was to explore how the effects of climate change on ecosystem services (provision, regulation and cultural) may relate to research capacity and gross domestic product (GDP) in each country along the Pacific coast of the Americas. Results. We find that, since 1980, the number of peer-reviewed scientific studies relevant to this topic strongly correlates with GDP (r = 0.90, p < 0.05) and that research effort is an order of magnitude lower along the Latin American Pacific coast (13.8 studies 1000 km -1 ) than in the neighbouring Californian coast (103 studies 1000 km -1 ). Conclusions. Our results highlight the need to better develop the research in the Latin America Pacific, and for more work on the key links between climate change and ecosystem services.","PeriodicalId":50407,"journal":{"name":"Hidrobiologica","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45039078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-31DOI: 10.24275/uam/izt/dcbs/hidro/2022v32n2/mariano
Verónica Giuliani Mariano-Mendoz
{"title":"Ecological aspects of the Neotropical otter, Lontra longicaudis annectens (Major, 1897), in La Lagartera Lagoon, Campeche, Mexico","authors":"Verónica Giuliani Mariano-Mendoz","doi":"10.24275/uam/izt/dcbs/hidro/2022v32n2/mariano","DOIUrl":"https://doi.org/10.24275/uam/izt/dcbs/hidro/2022v32n2/mariano","url":null,"abstract":"","PeriodicalId":50407,"journal":{"name":"Hidrobiologica","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45119582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-31DOI: 10.24275/uam/izt/dcbs/hidro/2022v32n2/torres
María del Rocío Torres-Alvarado
{"title":"Diversity of archaea in tropical and subtropical estuarine-lagoon ecosystems. A synthesis","authors":"María del Rocío Torres-Alvarado","doi":"10.24275/uam/izt/dcbs/hidro/2022v32n2/torres","DOIUrl":"https://doi.org/10.24275/uam/izt/dcbs/hidro/2022v32n2/torres","url":null,"abstract":"","PeriodicalId":50407,"journal":{"name":"Hidrobiologica","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41868989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-31DOI: 10.24275/uam/izt/dcbs/hidro/2022v32n2/serrano
A. Serrano
Background. In Mexico, the neotropical otter (Lontra longicaudis annectens, Olfers, 1818) is widely distributed, and its populations are threatened. Objectives. To estimate the density and abundance of neotropical river otters in the Alvarado Lagoon System (SLA), Veracruz. Methods. The SLA has an extension of 51,960.52 hectares and is made up of coastal lagoons, interior lagoons, and rivers. We employed the distance sampling technique with systematic transects to estimate the distribution, density, and abundance of the Neotropical otter in the SLA. Results. A total of 25 independent otter sightings were obtained; the Limón, Blanco, and Culebrilla rivers are the areas with the most significant sights. An abundance of 934 (% C.V.= 20.45) otters was estimated for the entire SLA, with a density of 0.179 organisms/km2 (% C.V.= 20.45). Conclusions. This study contributes to determining the first direct estimation of density for this species in a region of Mexico. The importance of this study is the precision with which the otter population was estimated, which allows for more robust information to make decisions and to take actions for the management and conservation of the species.
{"title":"Density and abundance estimation of the neotropical otter (Lontra longicuadis annectens Olfers, 1818) in the Alvarado Lagoon System, Veracruz","authors":"A. Serrano","doi":"10.24275/uam/izt/dcbs/hidro/2022v32n2/serrano","DOIUrl":"https://doi.org/10.24275/uam/izt/dcbs/hidro/2022v32n2/serrano","url":null,"abstract":"Background. In Mexico, the neotropical otter (Lontra longicaudis annectens, Olfers, 1818) is widely distributed, and its populations are threatened. Objectives. To estimate the density and abundance of neotropical river otters in the Alvarado Lagoon System (SLA), Veracruz. Methods. The SLA has an extension of 51,960.52 hectares and is made up of coastal lagoons, interior lagoons, and rivers. We employed the distance sampling technique with systematic transects to estimate the distribution, density, and abundance of the Neotropical otter in the SLA. Results. A total of 25 independent otter sightings were obtained; the Limón, Blanco, and Culebrilla rivers are the areas with the most significant sights. An abundance of 934 (% C.V.= 20.45) otters was estimated for the entire SLA, with a density of 0.179 organisms/km2 (% C.V.= 20.45). Conclusions. This study contributes to determining the first direct estimation of density for this species in a region of Mexico. The importance of this study is the precision with which the otter population was estimated, which allows for more robust information to make decisions and to take actions for the management and conservation of the species.","PeriodicalId":50407,"journal":{"name":"Hidrobiologica","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47472434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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