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Current Status of Cuban coastal fin fishes: 1970-2020.
No full textExiste una necesidad urgente de evaluar el estado de las poblaciones de peces de aguas costeras tropicales, donde la pesca se realiza sobre cientos de especies diferentes que viven en ecosistemas diversos y complejos. Utilizando un método basado en las capturas, originalmente empleado por la FAO para evaluar el estado de las pesquerías mundiales, este trabajo analiza el estado de las pesquerías de peces costeros de Cuba. El análisis de las series de capturas de 15 especies y grupos seleccionados, que se extiende por 50 años, muestra un pico máximo en 1975 y luego un decrecimiento significativo de las capturas (R2 = 0.7811). La evolución de cada fase de desarrollo de las pesquerías, utilizando dos criterios diferentes: el porcentaje del número de recursos en cada fase y el porcentaje de las capturas de cada recurso que se encuentra en cada fase, muestra el continuado incremento en la proporción de recursos plenamente explotados, sobreexplotados y colapsados, y atestigua la rapidez con que casi todos han llegado a sus límites máximos de explotación, con un decrecimiento total de un 47 %, que equivale a recursos plenamente explotados aunque próximos a la sobreexplotación. Como promedio, las capturas de todas las especies y grupos muestran una declinación próxima al 50 % y una tasa anual de declinación del 1.1 % anual. A pesar de los sesgos potenciales de utilizar solamente datos de captura, el elevado número de especies involucradas en la pesca comercial, la larga serie de datos y la metodología utilizada, proporcionan una información valiosa para los administradores pesqueros.There is an urgent need to assess the status of fisheries in tropical waters, where fishing has targeted hundreds of species in complex ecosystems. Using a catch-based method, originally described by FAO to assess the status of global fisheries; the present study provides an assessment of most important species of Cuban coastal fishes. The analysis of a 50-year series of catch data, covering the 15 most important species and groups, shows a maximum peak in 1975 and after that, a highly significant decline of the catches (R2 = 0.7811). Using two different approaches to assess the declines, the percentage of stock numbers and the percentage of catches extracted from stocks of a given status, the evolution of the fisheries shows the continuous increase in the fraction of fully exploited, overexploited and collapsed stocks and testifies the rapidity than fishery resources reached its maximum level of exploitation, with an overall decrease of 47 %. This figure is equivalent to fully exploited resources, though they are very close to be overexploited. As an average, all species and groups show a decline close to 50 % and the annual rate of decline is high, of 1.1%. Despite the potential biases of using catch data, the large number of species involved in this analysis, the long data-series and the methodology being used, provides valuable information for fishery managers.PublishedReferee
Illustrated keys for the classification of the Cuban marine and estuarine crabs (Malacostraca: Brachyura) IV.
No full textSe presenta la cuarta parte de las claves ilustradas para la clasificación de los cangrejos bra- quiuros (Crustacea, Brachyura) de Cuba. Se incluyen las claves y figuras originales de las especies pertenecientes a la Section Eubrachyura, Subsection Heterosomata (final) para la clasificación de las familias Domeciidae (un género y una especie); Panopeidae (10 géneros y 18 especies); Linnaeoxanthidae (un género y una especie); Pseudorhombilidae (11 géne- ros y 16 especies) y Xanthidae (17 géneros y 19 especies), citadas para Cuba.The fourth part of the illustrated keys for the classification of the brachyuran crabs (Crus- tacea, Brachyura) of Cuba is presented. The keys and original figures of the species belon- ging to the Section Eubrachyura, Subsection Heterosomata (final) for the classification of the families Domeciidae (1genus and 1 species); Panopeidae (10 genera and 18 species); Linnaeoxanthidae (un género y una especie); Pseudorhombilidae (11 genera and 16 spe- cies) and Xanthidae (17 genera and 19 species) cited for Cuba, are included.PublishedReferee
Proceedings of the 2023 Annual Meeting of the Scientific Committee on Oceanic Research 49th SCOR Annual Meeting, Volume 59, 2023
No full textThis proceeding summarizes the discussions during the 49th SCOR Annual Meeting held in Guayaquil, Ecuador, 17-19 October 2023. This proceeding also provides information from and links to the background information submitted for review at the meeting, including the proposals for new working groups and the reports from current SCOR working groups, projects, capacity development activities, and affiliated and partner organizations, all of which were traditionally included in the SCOR Annual Meeting background book until 2019. All of these can also be accessed online through the SCOR website at: https://scor-int.org/events/scor-2023-annual-meeting/.PublishedNon Referee
Sharks and rays at Pelabuhan Perikanan Samudera (PPS) Lampulo, Banda Aceh, Indonesia: Morphometric characteristics and differentiators based on multivariate analysis
No full textTropical marine environments are abundant and diverse; therefore, shark and ray research at fishing port PPS Lampulo, Banda Aceh City was carried out focusing on morphometric characteristics and differences based on multivariate analysis in July 2020 to identify sharks and rays that landed at fishing port PPS Lampulo, Banda Aceh City and determine their primary characteristics. The shark and ray samples used were from the Indian Ocean and the Malacca Strait and measured total length (TL), fork length (FL), and standard length (SL) for sharks and disc width (DW), TL, and disc length (DL) for rays. Principal component analysis (PCA) and discriminant analysis (DA) were performed on the morphometric data. The PCA analysis revealed that sharks and rays caught in Pelabuhan Perikanan Samudera (PPS) Lampulo, Banda Aceh City, can be divided into two distinct groups. The first group of sharks consists of species with large FL and SL morphometrics, namely P. kamoharai, C. plumbeus, P. glauca, and A. superciliosus. The second group of sharks consists of species with large TL morphometrics, specifically A. pelagicus and C. plumbeus. For the ray group, the first group comprises species with large TL and DW morphometrics, represented by A. ocellatus. The second group of rays consists of species with large DL morphometrics, namely P. sephen and H. jenkinsii. The results of DA revealed distinct differences in the size of sharks caught in the Indian Ocean and the Strait of Malacca, specifically in PPS Lampulo, Banda Aceh City. However, no significant differences in size were observed for the rays, regardless of whether their size was measured using DW, TL, or DL.PublishedReferee
Ocean politics and governance: between complexity and necessity
No full textAproximadamente desde los años 70 del siglo pasado, se inició una nueva fase de la globalización, que se acentuó luego de la caída del bloque socialista y del muro de Berlín, incrementando aceleradamente los procesos de intercambio a nivel económico, político y cultural. Esto produjo una creciente interdependencia entre los países, fenómeno que se alimentaba de diversas fuentes; entre ellas, los cambios tecnológicos impulsados por la tercera revolución industrial a partir de los años 50 y por la cuarta, cuyo inicio es señalado por los historiadores de la ciencia con el surgimiento de Internet.PublishedNot Know
Monitoring of the performance of the Common Fisheries Policy (STECF-Adhoc-23-01)
No full textCommission Decision of 25 February 2016 setting up a Scientific, Technical and Economic Committee for Fisheries, C(2016) 1084, OJ C 74, 26.2.2016, p. 4–10. The Commission may consult the group on any matter relating to marine and fisheries biology, fishing gear technology, fisheries economics, fisheries governance, ecosystem effects of fisheries, aquaculture or similar disciplines. This report deals with the monitoring of the performance of the Common Fisheries Policy.European CommissionPublishedReferee
Informe Anual del Centro Colombiano de Datos Oceanográficos (Cecoldo) 2022
No full textEl presente informe de gestión corresponde al octavo número desde el 2015. En su primer capítulo describe las iniciativas técnicas y científicas ejecutadas en 2022, cuyos datos oceanográficos serán entregados al Cecoldo. También se incluye una lista detallada de los datos entregados durante este mismo año por parte de los centros de investigaciones oceanográficas e hidrográficas y la RedMpomm de la Dimar, y los datos publicados en cumplimiento del ‘Plan de apertura de datos oceanográficos y de meteorología marina de la Dimar’ para la vigencia 2022. En cifras, el Cecoldo reporta un balance muy positivo en acceso a datos atendido mediante solicitud de información pública, con un incremento del 176 % en el volumen de datos entregados con relación al 2021 destinados a aportar a 30 proyectos o iniciativas académicas y científicas de ciudadanos colombianos y extranjeros. Dentro de las iniciativas de 2022 se resalta el lanzamiento del portal de datos abiertos del Cecoldo que incluye una versión actualizada del catálogo de metadatos ‘Geonetwork’ con productos de la IDE Marítima, Fluvial y Costera de Colombia; la nueva aplicación geográfica de inventario de cruceros oceanográficos y expediciones científicas en el mar, y la implementación de una aplicación móvil que permite consultar en tiempo real información de la red de monitoreo oceanográfico más grande del país. Cecoldo continuó participando durante el 2022 en el Comité Técnico Nacional de Datos e Información Oceánicos (CTN Diocean), coordinando la participación interinstitucional en los ‘Laboratorios del Decenio: un océano accesible’, a través del webinar ‘Acceso y gestión de datos oceánicos: CTN Diocean’; la realización de la segunda mesa de trabajo de sistemas de información oceánicos, y la emisión del segundo número de la publicación digital ‘Boletín CTN Diocean’. Al Grupo de Trabajo Especializado de Bases de Datos (GTE-BD) de los cruceros regionales, conformado por delegados de Chile, Colombia, Ecuador y Perú, el Cecoldo entregó dentro de los productos generados bajo su coordinación la publicación digital ‘Guía para el control de calidad de datos de temperatura y salinidad obtenidos en cruceros oceanográficos regionales’; 87 metadatos actualizados de conjuntos de datos recopilados en cruceros (1998-2021), y la catalogación de publicaciones del grupo en repositorios internacionales, entre otros.PublishedNot Know
Экспериментальная оценка токсикорезистентности бентосной микроводоросли Thalassiosira excentrica Cleve 1903 (Bacillariophyta) при воздействии ионов меди
No full textWith an increase in anthropogenic pressure on the ecosystem of the coastal zones of the sea, the relevance of assessing the state of plankton and benthos communities also increases. In the course of the study, the dynamics of the number of cells of the clone culture Thalassiosira excentrica Cleve 1903 (Bacillariophyta) has been determined under the influence of CuSO4·5H2O of various concentrations (32–1024 µg·L–1) under the conditions of 10-day experiments. In the control and at a low concentration of Cu2+, the proportion of living cells remains almost unchanged. The threshold concentration of copper ions for the survival of T. excentrica is 128 µg·L–1. At higher concentrations of Cu2+ (256–1024 µg·L–1), a sharp inhibition and death of the culture has been noted already within 1–3 days. The increase in the absolute number of cells at low concentrations of copper (32–64 µg·L–1) is described by the sigmoid response curve of the test-object. The growth values increase by 4–8 times on the 1st–5th day and decrease by 25–30 % by the 10th day. At Cu2+ concentrations of 128–256 µg·L–1, there is no positive increase in the number of cells on days 1–5; on subsequent days, it decreases by 2 times or drops to zero. The intensity of the specific cell growth significantly decreases depending on the increase in the concentration of the toxicant. It has been found that on days 1–5, the specific increase is positive in the range of copper concentrations of 32–128 µg·L–1 and negative – at concentrations of 256 µg·L–1 and higher. In the period of 5–10 days, for all concentrations of the toxicant, the values of the specific increase are negative. The obtained results make it possible to recommend T. excentrica as a promising test object for toxicological experiments.При усилении антропогенной нагрузки на экосистему прибрежных зон моря возрастает актуальность оценки состояния сообществ планктона и бентоса. В ходе исследования определена динамика численности клеток клоновой культуры Thalassiosira excentrica Cleve 1903 (Bacillariophyta) при воздействии CuSO4·5H2O разной концентрации (32–1 024 мкг·л –1) в условиях 10-суточных экспериментов. В контроле и при низкой концентрации Cu2+ доля живых клеток практически не изменяется. Пороговая концентрация ионов меди для выживания T. excentrica равна 128 мкг·л –1. При более высоких концентрациях Cu2+ (256–1 024 мкг·л –1) отмечено резкое угнетение и гибель культуры уже в течение 1–3-х суток. Прирост абсолютной численности клеток при низких концентрациях меди (32–64 мкг·л –1) описывается сигмоидной кривой отклика тест-объекта. Значения прироста возрастают в 1–5-е сутки в 4–8 раз и снижаются к 10-м суткам на 25–30 %. При концентрациях Cu2+ 128–256 мкг·л –1 положительный прирост численности клеток в 1–5-е сутки отсутствует, в последующие дни снижается в 2 раза либо падает до нуля. Интенсивность удельного прироста клеток достоверно снижается в зависимости от увеличения концентрации токсиканта. Установлено, что в 1–5-е сутки удельный прирост положительный в диапазоне концентраций меди 32–128 мкг·л –1 и отрицательный – при концентрациях 256 мкг·л –1 и выше. В период 5–10-х суток для всех концентраций токсиканта значения удельного прироста отрицательные. Полученные результаты позволяют рекомендовать T. excentrica в качестве перспективного тест-объекта для токсикологических экспериментов.PublishedReferee
A geohistorical approach to wetland restoration: ancient maps and modern geospatial technologies for a source-to-sea perspective in the Pantanello Natural Park and surrounding designated areas
No full textThis study has been conceived after a field-based experience and developing the wider analysis through a geohistorical approach, according to the need to deepen the scientific knowledge of a portion of land characterized by a relevant habitat complexity and species diversity, despite its limited spatial extension. One of the main objectives of this study is to describe the changes in the land use, over approximately 150 years in an Italian agricultural landscape, in relation to changes in human population, livestock and wildlife species, to analyze the relationships between historical land use, current species diversity and upcoming uses of the natural resources within the area.PublishedNot Know
Научному рецензируемому журналу «Водные биоресурсы и среда обитания» — пять лет
No full textIn 2023, the scientific peer-reviewed journal “Aquatic Bioresources & Environment” celebrates its first major birthday: 5 years since its first publication. Since 2021, the journal has been included in the List of peer-reviewed scientific publications, in which the main scientific results of dissertations for the degree of Candidate of Science and for the degree of Doctor of Science should be published (List of the Higher Attestation Commission), and is indexed in the Russian Science Citation Index (RSCI); its abstracts are submitted to the International Information System for Aquatic Sciences and Fisheries Abstracts (ASFA). Full texts of the articles are available in open access at the official website of the journal and the Scientific Electronic Library e-library.ru (eLIBRARY), as well as on other web platforms accessible through search engines. All articles are assigned with Digital Object Identifiers (DOI), which, in turn, are registered by the international agency Crossref. In 2023, the leading journals of the Russian Federation go through the process of verification and ranking. At present, the journal is included into the category K2 in the List of the Higher Attestation Commission and has major achievements among the Russian scientific periodical publications.В 2023 г. научный рецензируемый журнал «Водные биоресурсы и среда обитания» (Aquatic Bioresources & Environment) празднует свой первый юбилей — 5 лет с начала издания. C 2021 г. журнал включен в Перечень рецензируемых научных изданий, в которых должны быть опубликованы основные научные результаты диссертаций на соискание ученой степени кандидата наук, на соискание ученой степени доктора наук (Перечень ВАК), и индексируется в Российском индексе научного цитирования (РИНЦ). Рефераты (аннотации) работ поступают в Международную информационную систему по водным наукам и рыболовству Aquatic Sciences and Fisheries Abstracts (ASFA). Полные статьи имеются в открытом доступе на сайте журнала, в Научной электронной библиотеке e-library.ru (НЭБ) и через поисковые системы доступны на других платформах. Каждой работе присваиваются цифровые идентификаторы объектов — Digital Object Identifiers (DOI), которые, в свою очередь, регистрируются международным агентством Crossref. В 2023 г. ведущие журналы Российской Федерации проходят верификацию и рейтингование. К настоящему времени журнал вошел в категорию K2 в Перечне ВАК и имеет весомые достижения среди научных печатных изданий страны.PublishedNon Referee