Hidrobiologica最新文献_第2页

The mesophotic ecosystem of archipelago Espíritu Santo as a refuge from climate change Espíritu圣托群岛的中胚层生态系统作为气候变化的避难所

4区生物学

Hidrobiologica Pub Date : 2023-08-30 DOI: 10.24275/pqxd5278

Luis Eduardo Calderón Aguilera

{"title":"The mesophotic ecosystem of archipelago Espíritu Santo as a refuge from climate change","authors":"Luis Eduardo Calderón Aguilera","doi":"10.24275/pqxd5278","DOIUrl":"https://doi.org/10.24275/pqxd5278","url":null,"abstract":"Background. Coastal environments such as the intertidal zone and rocky and coral reefs are exposed to natural disturbances such as tides, storms, hurricanes, and cyclones and human activities such as fishing, tourism, and pollution. The deep reef refuge hypothesis posits that organisms that can inhabit greater depths would be less vulnerable to anthropogenic impacts, greenhouse warming of the sea surface, and ocean acidi-fication caused by the increased partial pressure of CO2. Consequently, deep rocky or coral reefs can function as “insurance” against the effects of climate change. Objective. To analyse biotic and abiotic variables of the mesophotic ecosystem of Archipelago Espíritu Santo to assess it as a refuge against climate change-related disturbances. Methods. Bathymetry, profiles of temperature, salinity, and dissolved oxygen; determination of the euphotic zone, sampling in shallow and deep waters collecting water for analysis of carbonate system, video transects with remotely operated vehicles for the identification of benthic species and estimation of their abundance including those of commercial importance or conservation. Calculation of ecological indices and the reef-functional index. Results. Deepest recorded point was 78m, shallowest mesophotic zone was 11m. Temperature does not show a stratification either in April or in October 2021, but the salinity registers a peak near 30 m depth, and the dissolved oxygen decreases at 20 m. W Aragonite is below 3.0; there is spatial variation in the structural indices of the benthic community, and the reef-functional index is between 0.16 and 0.65. Conclusions. There are sharp spatial variations within the same locality, limiting the assertion that mesophotic ecosystems can serve as a refuge from climate change.","PeriodicalId":50407,"journal":{"name":"Hidrobiologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136241354","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}

引用次数: 0

Microplastics in beaches within the influence area of the Veracruz Reef System National Park (PNSAV), Mexico 墨西哥韦拉克鲁斯珊瑚礁系统国家公园(PNSAV)影响区域内海滩上的微塑料

4区生物学

Hidrobiologica Pub Date : 2023-08-30 DOI: 10.24275/khdd6042

Luis Alberto Peralta Peláez

{"title":"Microplastics in beaches within the influence area of the Veracruz Reef System National Park (PNSAV), Mexico","authors":"Luis Alberto Peralta Peláez","doi":"10.24275/khdd6042","DOIUrl":"https://doi.org/10.24275/khdd6042","url":null,"abstract":"Background. Plastic production has increased considerably in the last decades, with production during 2019 of 368 million tons, where a considerable amount is discarded into the environment, where it wears out and decomposes into microplastics. Objectives. Quantify and characterize the microplastics on the beaches of the area of influence of the Parque Nacional Sistema Arrecifal Veracruzano (PNSAV). Methods. The present study sampled sand beaches on the coasts of Veracruz, more specifically in La Mancha, Chachalacas, Chalchihuecan, Antón Lizardo, and El Sendero, in the municipalities of Actopan, Úrsulo Galván, La Antigua and Alvarado, respectively. Plastic particles were obtained after drying and sieving the sand and were quantified and characterized by spectroscopy (FTIR) and electron microscopy (SEM). Results. A total of 180 plastic pieces (4.5 pieces /m2 ) were found in the zone of influence of the PNSAV. El Sendero and Chachalacas’s beaches presented the most plastic pieces. Of the total number of particles in the system, 92.35% were irregularly shaped, and the rest were fibers, pellets, and films. Regarding the type and dominance of plastic polymers found on the beaches, the three primary materials were high and low-density polyethylene (26.67 and 27.22 %, respectively) and polypropylene (23.33 %). Conclusions. Microplastics were found on all the beaches analyzed, most of which were irregular in shape, representing a risk for organisms that ingest them since they serve as vectors of pathogenic microorganisms and dispersers of toxic chemicals.","PeriodicalId":50407,"journal":{"name":"Hidrobiologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136037342","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}

引用次数: 1

Seasonal and spatial variability of the euphotic zone in Bahía de Banderas Bahía de Banderas光区的季节和空间变异

4区生物学

Hidrobiologica Pub Date : 2023-08-30 DOI: 10.24275/rzpr6531

Luis Eduardo Calderón Aguilera

{"title":"Seasonal and spatial variability of the euphotic zone in Bahía de Banderas","authors":"Luis Eduardo Calderón Aguilera","doi":"10.24275/rzpr6531","DOIUrl":"https://doi.org/10.24275/rzpr6531","url":null,"abstract":"Background. The euphotic zone (EUZ) is the most superficial section of the water column where solar radiation is sufficient to produce photosynthesis. In situ depth is measured using light profiler probes but can also be monitored using remote sensing. Objective. To determine the temporal and spatial variability of Bahía de Banderas Euphotic Zone (EUZ) and its relationship with other variables that contribute to turbidity. Methods. Different data sources (OceanColor, Copernicus, NOAA, CONAGUA) were used to obtain time series (2003 to 2020) of particulate inorganic matter (PIM), Chlorophyll-a (Chl-a), diffuse attenuation coefficient at 490 nm (Kd490), depth of the Secchi disk (ZSD), ZEU, daily precipitation and water level of the Ameca and Pitillal rivers and a correlation analysis was made between these variables, and a cluster analysis to determine if there are spatial differences in the bay, as well as scatter plots to observe trends among environmental parameters. Two seasonal maps (rainy and dry season) were drawn based on the climatic medians of ZEU and the prevailing geostrophic currents. Results. The euphotic zone (EUZ) was deeper from June to August (48.54 ± 21.93 m) and shallower from February to April (22.95 ± 12.98 m); the cluster analysis determined that the bay is divided into two areas: the north, whose ZEU is shallower (higher correlation with MIP and Chl-a), and the south, where it is deeper (higher correlation with Chl-a). Conclusions. The parameter that has the greatest effect on the depth of the ZEU is the Chl-a, and only the area closest to the mouth of the Ameca and Pitillal rivers presents an inverse relationship between the ZEU with the MIP and the Chl-a.","PeriodicalId":50407,"journal":{"name":"Hidrobiologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136241349","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}

引用次数: 0

Soft corals (Cnidaria: Anthozoa: Octocorallia) of the offerings 178 and 179 of the Templo Mayor of Tenochtitlan, Mexico 墨西哥特诺奇蒂特兰市马约尔神庙178号和179号祭品中的软珊瑚(刺胞目:珊瑚虫目:八珊瑚目)

4区生物学

Hidrobiologica Pub Date : 2023-08-30 DOI: 10.24275/awhr2903

Pedro Medina Rosas

{"title":"Soft corals (Cnidaria: Anthozoa: Octocorallia) of the offerings 178 and 179 of the Templo Mayor of Tenochtitlan, Mexico","authors":"Pedro Medina Rosas","doi":"10.24275/awhr2903","DOIUrl":"https://doi.org/10.24275/awhr2903","url":null,"abstract":"Background. Since 1978, more than 200 offerings have been studied in the archeological zone of the Templo Mayor of Tenochtitlan, where an enormous diversity of cultural objects, as well as rests of human beings, plants, and animals, including several coral species have been found. The offerings 178 and 179 were exca-vated recently, as they were discovered in 2019, and due to the type of material, but mainly because of the number of specimens, its excavation process and study have been slow and meticulous, and it is unfinished yet in the 178. Objectives. This study describes the soft corals deposited in these two offerings. Methods. Excavation, extraction, cleaning, and preservation of the corals were performed according to the Proyecto Templo Mayor protocol. Due to the state of conservation of the samples, and the effects of almost 500 years of burial, taxonomic identification was made considering the external morphological characteristics. Results. Until now, in both offerings, there are four species of gorgonians of the genus Pacifigorgia (Cnidaria: Anthozoa: Octocorallia: Gorgoniidae), currently distributed on the Mexican Pacific coast. In Offering 178, three species are registered, and four in Offering 179. Conclusions. The relevant aspect of these offerings, in particular Offering 178, is the exceptional amount of buried corals, because both contain more than 150 entire colonies and almost 300 lots of fragments, for a total of 454 corals, a number never recorded previously in any other offering in the heart of ancient Tenochtitlan during the last 45 years of excavations. Because the study of corals of the sacred temple will continue due to more excavation of offerings, the number of species and specimens will increase in the future.","PeriodicalId":50407,"journal":{"name":"Hidrobiologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136241261","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}

引用次数: 0

Stomatopod and decapod crustaceans in 12 coral reefs of the Gulf of Mexico 墨西哥湾12个珊瑚礁中的口足类和十足类甲壳类动物

4区生物学

Hidrobiologica Pub Date : 2023-08-30 DOI: 10.24275/npko6030

Jorge Luis Hernández Aguilera

{"title":"Stomatopod and decapod crustaceans in 12 coral reefs of the Gulf of Mexico","authors":"Jorge Luis Hernández Aguilera","doi":"10.24275/npko6030","DOIUrl":"https://doi.org/10.24275/npko6030","url":null,"abstract":"Background. In 1985, as part of a global project within the “Secretaría de Marina” and continued in the “Facultad de Ciencias, Universidad Nacional Autónoma de México” and in “Estudio y Conservación de la Naturaleza, A. C.”, a collection series of stomatopods and decapods crustaceans that inhabit the coral reefs of the East coast of Mexico began. Objective. Provide an updated inventory and analysis of species richness on 12 reefs for the two orders of crustaceans. Method: Manual collection, dredges, free and autonomous diving. Review of national and international collections and bibliographic records. Results. The 12 coral reefs studied are geographically distributed in four groups: northern Veracruz (97 species), central Veracruz (194 species), Campeche (130 species), and Yucatán (196 species). Twelve species, six genera, and five families are recognized for the stomatopods, and 314 species, 155 genera, and 55 families for the decapods. The family with the highest richness was the Alpheidae, with 53 species (due to the plasticity of occupying various available habitats in the reefs and by establishing symbiosis with other taxa), followed by Palaemonidae shrimps (29 species) and the spider crabs of the Mithracidae family (18 species). The Portunidae family (swimming crabs) presented 16 species, followed by porcelain crabs (15 species) and xanthoidean crabs (13 species). Twenty families presented only one species. Some species are considered “species in transit” such as Latreutes fucorum, Latreutes parvulus, and Portunus sayi, which were found to be associated with Sargassum spp. Conclusions. There is no doubt that the inventory of species of the Mexican reefs of the East coast will increase considerably by making a greater sampling effort at different tide phases and times of the year and sampling in specific habitats for certain species.","PeriodicalId":50407,"journal":{"name":"Hidrobiologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136241345","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}

引用次数: 0

Density, biomass, and size structure of lionfish in the Tuxpan reef, Veracruz 韦拉克鲁斯州图斯潘礁狮子鱼的密度、生物量和大小结构

4区生物学

Hidrobiologica Pub Date : 2023-08-30 DOI: 10.24275/njyw6832

Carlos González Gándara

引用次数: 0

Physical functionality as an indicator of habitat availability in Islas Marietas, Nayarit, Mexico 物理功能作为墨西哥纳亚里特马里埃塔斯岛栖息地可用性的指标

4区生物学

Hidrobiologica Pub Date : 2023-08-30 DOI: 10.24275/bdte3481

Rafael Andrés Cabral Tena

{"title":"Physical functionality as an indicator of habitat availability in Islas Marietas, Nayarit, Mexico","authors":"Rafael Andrés Cabral Tena","doi":"10.24275/bdte3481","DOIUrl":"https://doi.org/10.24275/bdte3481","url":null,"abstract":"Background. Few investigations use functional diversity and the reef functional index (IFA) to assess the sta-te of reef communities. Objectives. Evaluate physical functionality as an indicator of fish habitat availability and its relationship with functional diversity. Methods. The physical functionality of the reef was evaluated using the IFA, integrating data on coral cover, structural complexity, and calcification rate. The structure of the fish assemblages was analyzed by calculating functional diversity indices (richness, evenness, and divergen-ce) based on six functional traits (body size, mobility, activity period, type of aggregation, position in the water column, and diet). The relationship between functional diversity and IFA was evaluated using linear regression analysis. Results. Área de Restauración showed the highest values in the IFA; on the contrary, Túnel Amarra-dero presented the lowest values. In both sites, a greater presence of Pocillopora verrucosa was observed. Functional diversity presented the lowest values in the three functional indices in Área de Restauración. Linear regression analyses were not significant. Conclusions. No linear relationship was found between the IFA and functional diversity; this can be attributed to the fact that in sites with low coral cover, such as Islas Marietas, the functional diversity of fish presents a weak relationship with the three-dimensionality provided by corals since in sites with low coral cover, other structural elements (geologic features and rock substrates) could promote these three-dimensional structures.","PeriodicalId":50407,"journal":{"name":"Hidrobiologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136241266","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}

引用次数: 0

Presence of parasitic forms of zoonotic importance in beach sand that affect the Parque Nacional Sistema Arrecifal Veracruzano 影响韦拉克鲁萨诺国家生态系统的沙滩上人畜共患病的重要寄生虫形式的存在

4区生物学

Hidrobiologica Pub Date : 2023-08-30 DOI: 10.24275/hioo7870

Itzel Galaviz Villa

{"title":"Presence of parasitic forms of zoonotic importance in beach sand that affect the Parque Nacional Sistema Arrecifal Veracruzano","authors":"Itzel Galaviz Villa","doi":"10.24275/hioo7870","DOIUrl":"https://doi.org/10.24275/hioo7870","url":null,"abstract":"Background. The Veracruz coastal zone in Mexico has a vast coastline where different tourist (use of beaches), economic (urban-port, commercial, and gastronomic), social, cultural, and sports activities are carried out. In Mexico, the only regulation that refers to the quality of beaches is NMX-AA-120-SCFI-2016, in which the absence of fecal matter is determined as an indicator of its sanitary quality. However, the inadequate management of fecal material in recreational beaches compromises public health and contributes to water and sand quality deterioration. Objective. To evaluate the presence of parasitic forms of zoonotic importance in the sand of the beaches of the Veracruz-Boca del Río metropolitan area that affect the Veracruz Reef System National Park. Methods. A total of 100 samples of beach sand and 19 samples of fecal matter were taken in the period from June to October 2021. The analyzes were carried out at the Boca del Río Technological Institute/Aquatic Resources Research Laboratory by the Willis flotation technique and cup sedimentation. The presence of helminths was identified and quantified as bioindicators of fecal matter contamination. Results. Of the sand samples, 28 % were positive for parasitic forms with a recovery of 112 parasitic forms, of which 67.85 % correspond to parasites of the genus Strongyloides sp. and Hookworms. 32.35 % corresponds to non-pathogenic parasites for humans. Of the fecal matter samples collected, only 42.1 % showed positivity to the parasitized forms mentioned above. Conclusions. The presence of parasitic pathogenic forms in the sand samples indicates fecal contamination, which compromises the sanitary and environmental quality of the beach sand of the Veracruz-Boca del Río metropolitan area and the Veracruz Reef System National Park.","PeriodicalId":50407,"journal":{"name":"Hidrobiologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136241272","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}

引用次数: 0

Contribution of heterotrophs to secondary calcification in marginal reefs of the Mexican Pacific 异养生物对墨西哥太平洋边缘珊瑚礁次生钙化的贡献

4区生物学

Hidrobiologica Pub Date : 2023-08-30 DOI: 10.24275/uvos4166

J. Fernando Alvarado Rodríguez

{"title":"Contribution of heterotrophs to secondary calcification in marginal reefs of the Mexican Pacific","authors":"J. Fernando Alvarado Rodríguez","doi":"10.24275/uvos4166","DOIUrl":"https://doi.org/10.24275/uvos4166","url":null,"abstract":"Background. Sclerobionts (e.g., calcareous algae, bryozoans, polychaetes, mollusks, and barnacles) produce reef calcium carbonate (CaCO3). Their contribution is key to maintaining positive CaCO3 balances, especially in marginal reefs. Objective. To compare the production of CaCO3 by sclerobionts in two marginal reefs of the Mexican Pacific: Las Gatas (LG), in Zihuatanejo Guerrero Bay, and La Llave (LL), in Bahía de Los Angeles (Gulf of California). Methods. CAUs (Calcification/Accretion Units) were used to promote sclerobiont recruitment during two deployment times: 6 and 15 months. Results. The calcification rate was high at six months and then decreased due to rapid colonization and initial growth, followed by a decrease over time. Sclerobionts deposited 1.2 ± 0.4 kg CaCO3 m-2 yr-1 in LG, which represents 7% of the production of branching corals in the Mexican South Pacific (17.2 kg m-2 yr-1), while in LL, they deposited 2.1 ± 0.7 kg CaCO3 m-2 yr-1; equivalent to 20% of the production of massive corals in the area (10.1 kg m-2 yr-1). The groups that deposited most CaCO3were mollusks and bryozoans in LG (up to 0.65 ± 0.16 kg m-2 yr-1) and barnacles in LL (up to 2.32 ± 0.35 kg m-2 yr-1). Conclusions. These results highlight the role of heterotrophs as secondary calcifiers both in LG, a site impacted by anthropogenic activity, and in LL, an area with low anthropogenic impact but high biological productivity associated with upwellings. This finding implies that the environmental conditions at the study sites limit the calcification of primary calcifiers (i.e., corals and CCA) but promote that of secondary calcifiers, with potential geomorphic repercussions","PeriodicalId":50407,"journal":{"name":"Hidrobiologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136241346","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}

引用次数: 0

Anatomy of the oropharyngeal cavity of the “crevalle jack”, Caranx hippos (Linnaeus, 1766) (Teleostei: Carangidae). “crevalle jack”的口咽腔解剖，大银鱼河马（林奈，1766）（远骨目：大银鱼科）。

IF 0.1 4区生物学

Hidrobiologica Pub Date : 2023-04-30 DOI: 10.24275/uam/izt/dcbs/hidro/2023v33n1/beltran

Omar Beltrán-Vinalay

引用次数: 0