Hanieh Saeedi

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Hanieh verified their affiliation via an institutional email.

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• PhD in Marine Science
• Geobiodiversity Information Team Leader at Senckenberg Research Institute and Natural History Museum Frankfurt/M

Geological history, including tectonic activity and sea-level changes, dispersal capability, and habitat continuity, are among the key players in shaping the phylogeography of marine species. The Persian Gulf is a shallow semi-enclosed marginal sea in the northwestern part of the Indian Ocean with harsh physical conditions. A variety of population...

Collections’ digitisation is a priority in many natural history collections, and publicly available datasets are expanding rapidly. The potential value of collections remains largely untapped even in modern research, because the vast scope of collections dwarfs current efforts at data mobilisation. Collections are continually expanding, and there a...

Collections’ digitisation is a priority in many natural history collections, and publicly available datasets are expanding rapidly. The potential value of collections remains largely untapped even in modern research, because the vast scope of collections dwarfs current efforts at data mobilisation. Collections are continually expanding, and there a...

Abstract The Persian Gulf (PG), an epicontinental sea at the northwestern corner of the Indian Ocean presents a challenging environment in which species confront the upper limits of their environmental tolerance. Previous hypotheses suggested that the PG is a homogeneous ecosystem characterized by low species diversity and a limited number of endem...

Amphipods are known as umbrella species in conservation biology that their protection indirectly protects other species. Recent hypotheses suggest a bimodal latitudinal global species richness pattern for amphipods, irrespective of species’ depth or habitat type. Phylogeographic hypotheses suggested two distinct procedures for amphipod diversificat...

Current environmental changes due to increased human activities are impacting biodiversity and distribution of marine organisms. Understanding species diversity is essential for assessing threats, predicting impacts, and guiding conservation planning. Our study focuses on the family Leptocheliidae (Crustacea: Tanaidacea), a suitable model for inves...

The deep sea, Earth’s largest biome, harbors numerous unknown species. Prior to the AleutBio (Aleutian Trench Biodiversity Studies) expedition from July to September 2022, the Northeast (NE) Pacific at abyssal and hadal depths was virtually unexplored. Our study presents new findings from the AleutBio project on the macrofaunal composition of the B...

Interest in the deep Arctic Ocean is rapidly increasing from governments, policy makers, industry, researchers, and conservation groups, accentuated by the growing accessibility of this remote region by surface vessel traffic. In this review, our goal is to provide an updated taxonomic inventory of benthic taxa known to occur in the deep Arctic Oce...

Deep‐sea benthic communities are strongly controlled by the quantity and quality of organic matter sinking from the ocean surface. The interaction between benthic fauna and seafloor sediments mainly occurs through bioturbation that modifies substrate properties (e.g., geochemical profiles). The intensity of the bioturbation has long been linked wit...

Although invasive alien species have long been recognized as a major threat to nature and people, until now there has been no comprehensive global review of the status, trends, drivers, impacts, management and governance challenges of biological invasions. The Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES)...

Biological invasions are a growing challenge in a highly interconnected and globalized world, leading to the loss of native biodiversity. Indigenous peoples’ lands (IPLs) play a vital role in biodiversity conservation through activities such as land stewardship and management practices. Similar to protected areas, they are also often remote, with f...

Amphipods are known as umbrella species in conservation biology. Recent hypotheses suggested a bimodal latitudinal global distribution pattern for amphipods, irrespective of species' depth or habitat type. This study revisited this hypothesis with a comprehensive database collected from all open-access data and sampling database from the Persian Gu...

Brachyuran crabs constitute the dominant fauna in intertidal and supratidal coasts of mangrove forests. We sampled the most com- monly occurring crab species from the biodiversity rich Persian Gulf mangrove forest. We identified crabs from Camptandriidae, Dotillidae, Ocypodidae, Macrophthalmidae, and Sesarmidae as the most common species in the sam...

At least 39,215 alien species and more than 37,000 established alien species have been recorded worldwide and occurrences of established alien species have been reported from all countries and all ecosystems globally. The number of established alien species has risen at continuously accelerating rates for centuries, recently reaching the highest to...

The Ocean Biodiversity Information System (OBIS) (Klein et al. 2019) is a global database of marine biodiversity and associated environmental data, which provides critical information to researchers and policymakers worldwide. Ensuring the accuracy and consistency of the data in OBIS is essential for its usefulness and value, not only to the scient...

The DIVA (Latitudinal Gradients of Deep-sea BiodDIVersity in the Atlantic) expeditions studied benthic biodiversity of the abyssal Equatorial and South Atlantic as part of the Census of the Diversity of Abyssal Marine Life (CeDAMar), the abyssal component of the ten-year programme Census of Marine Life (2000-2010). Three expeditions were carried ou...

Samples of Crustacea and Annelida (Polychaeta, Sipuncula, and Hirudinea) were collected in the Bering Sea and the northwestern Pacific Ocean during scientific cruise SO-249 BERING in 2016. Biological samples were collected from 32 locations by the team on-board RV Sonne using a chain bag dredge at depths ranging between 330–5,070 m, and preserved i...

Polychaeta and Sipuncula are abundant inhabitants of benthic marine habitats and have been increasingly sampled in the Northwest Pacific (NWP). However, polychaete and sipunculan species richness, composition, and distribution patterns still require further investigation, despite previous studies due to increasing deep-sea data flow. Using occurren...

Integration of the world's natural history collections can provide a resource for decision-makers.

Over the past three centuries, people have collected objects and specimens and placed them in natural history museums throughout the world. Taken as a whole, this global collection is the physical basis for our understanding of the natural world and our place in it, an unparalleled source of information that is directly relevant to issues as divers...

The coral reefs are the most diverse marine ecosystem in the world. Considering its contribution as a natural resource for humanity and global biodiversity, it is critical to understand its response to climatic change. To date, no global predictions have been made about potential ecosystem changes in relation to its inhabiting species. Predicting c...

World leaders and representatives of 196 contracting states are joining the 15th Conference of the Parties (COP15) to the Convention on Biological Diversity (CBD) in Montréal to discuss strategies to stem global biodiversity loss. Worldwide, one million species are currently threatened with extinction from increasing anthropogenic impacts. Recently...

Biodiversity patterns of marine crustaceans are still unknown in many locations or might have been overlooked due to our knowledge gaps, despite increasing sampling and data sharing efforts during the last decades. By analysing big data extracted from open portals such as Ocean Biodiversity Information System (OBIS) and Global Biodiversity Informat...

Calls for science to innovate by including stakeholders' in the creation of marine knowledge have been rising, to create impact beyond laboratories and to contribute to the empowerment of local communities when interacting with marine and coastal ecosystems. As a transdisciplinary group of scientists working on co-designing research projects, this...

This short paper summaries some insights into the deep-sea biodiversity data digitisation and data sharing mostly related to natural history collections.

Establishing management programs to preserve the benthic communities along the NW Pacific and the Arctic Ocean (AO) requires a deep understanding of the composition of communities and their responses to environmental stressors. In this study, we thus examine patterns of benthic community composition and patterns of species richness along the NW Pac...

Background: The Northwest Pacific Ocean is one of the hotspots of species richness and one of the high endemicity areas of the World Ocean. However, large-scale biodiversity patterns of major deep¬ sea taxa such as Isopoda and Polychaeta is still poorly studied. The goal of this research is to study the distribution, biodiversity, and community com...

Empirical and theoretical studies suggest that marine species respond to ocean warming by shifting ranges poleward and/or into deeper depths. However, future distributional patterns of deep-sea organisms, which comprise the largest ecosystem of Earth, remain poorly known. We explore potential horizontal range shifts of benthic shallow-water and dee...

The Southern Ocean (SO) is the least understood environment on earth, but anthropogenic impacts related to climate change, fishing activities and tourism are already well-established in the region. Herein, we investigate biodiversity patterns in the Atlantic Sector of the SO by investigating a considerable number of samples collected from a wide de...

Mangroves are an ideal habitat for a variety of marine species, especially brachyuran crabs. Using MaxEnt modelling technique, we projected the potential global distributions of six families of mangrove crabs including Camptandriidae, Dotillidae, Macrophthalmidae, Ocypodidae, Sesarmidae, and Oziidae; as well as 23 representative species of those fa...

This dataset contains abundance (i.e., absolute number of speicmens/individuals) of ostracod genera collected during three cruises of the German Research Vessel Polarstern in the Atlantic Sector of the Southern Ocean. The cruises are EASIZ II (PS 48/ANT XV-3), ANDEEP I (PS 61/ANT XIX-3), ANDEEP II (PS 67/ANTXXII-3), and ANDEEP III (PS 67/ANTXXII-4)...

Mangroves are an ideal habitat for brachyuran crabs because of nutritional and shelter support. Using MaxEnt (Maximum Entropy) modeling technique, we projected the potential global distributions of ten dominant species of mangrove crabs from the Persian Gulf and the Sea of Oman under future climate change. The highest species richness of mangrove c...

Mangroves are ideal habitat for a variety of marine species especially brachyuran crabs as the dominant mac-rofauna. However, the global distribution, endemicity, and latitudinal gradients of species richness in mangrove crabs remains poorly understood. Here, we assessed whether species richness of mangrove crabs decreases towards the higher latitu...

Knowledge of life on the Southern Ocean seafloor has substantially grown since the beginning of this century with increasing ship-based surveys and regular monitoring sites, new technologies and greatly enhanced data sharing. However, seafloor habitats and their communities exhibit high spatial variability and heterogeneity that challenges the way...

In the last decade, the biology of bathyal, abyssal, and hadal faunas of all size classes (meio-, macro-, and megabenthos) of the northwestern (NW) Pacific has been intensively studied on the basis of a Memorandum of Understanding between Russia and Germany. A total of four Russian-German and German-Russian expeditions with the FS Akademik MA Lavre...

Climate change is influencing some environmental variables in the Southern Ocean (SO) and this will have an effect on the marine biodiversity. Peracarid crustaceans are one of the dominant and most species-rich groups of the SO benthos. To date, our knowledge on the influence of environmental variables in shaping abundance and species composition i...

Mangroves are ideal habitat for a variety of marine species especially brachyuran crabs as the dominant macrofauna. However, the global distribution, endemicity, and latitudinal gradients of species richness in mangrove crabs remains poorly understood. Here, we assessed whether species richness of mangrove crabs decreases towards the higher latitud...

Based on four deep-sea expeditions, the Beneficial project (Biogeography of the northwest Pacific fauna. A benchmark study for estimations of alien invasions into the Arctic Ocean in times of rapid climate chance) was designed. The main aims of the Beneficial project were 1- digitizing the biodiversity and environmental data collected during our ex...

The aim of this dataset is to deliver a sound biogeographic baseline study of the NW Pacific area including our available data from the Sea of Japan, Sea of Okhotsk, Kuril-Kamchatka Trench (KKT), Aleutian Trench (AT), SW Bering Sea, and the NW Pacific open abyssal plain. We aim at compiling a novel book on the biogeography of the NW Pacific faunas,...

This book is designed as a guide, synthesis, and review of the current knowledge of the benthic fauna that is distributed in the bathyal and abyssal zones (below 2,000 m) of the NW Pacific. This book consists of 21 chapters, with an introduction followed by 20 chapters on taxonomy and biogeography of different deep-sea taxa including Porifera, Cnid...

The deep NW Pacific has been intensively analyzed in the last decade, during an international collaboration between German and Russian scientists, which has resulted in a vast, unique collection of material from previously unexplored areas. Until now, the environmental forces that could be driving species richness patterns in the deep NW Pacific ha...

Video and image data are regularly used in the field of benthic ecology to document biodiversity. However, their use is subject to a number of challenges, principally the identification of taxa within the images without associated physical specimens. The challenge of applying traditional taxonomic keys to the identification of fauna from images has...

This dataset was compiled after a careful data-collection and cleaning procedure over four years for Hanieh Saeedi PhD project. Data were collected using field sampling, literature and museum collections. Then all the records went through quality control procedures such as validating the taxonomy of the species by examining and re-identifying the s...

This mini-review paper analyses the achievements of the Ocean Biogeographic Information System (OBIS), as a distributed global data system and as a community of data contributors and users. We highlight some issues and challenges and identify ways OBIS is trying to address these with developing community standards, protocols and best practices, app...

The diversity of life in the sea is critical to the health of ocean ecosystems that support living resources and therefore essential to the economic, nutritional, recreational, and health needs of billions of people. Yet there is evidence that the biodiversity of many marine habitats is being altered in response to a changing climate and human acti...

Global scale analyses have recently revealed that the latitudinal gradient in marine species richness is bimodal, peaking at low-mid latitudes but with a dip at the equator; and that marine species richness decreases with depth in many taxa. However, these overall and independently studied patterns may conceal regional differences that help support...

The Northwestern (NW) Pacific Ocean lies in one of the most productive, speciose, and diverse regions of the World Ocean, and includes several shallow-water oceanic islands and deep-sea basins of varying depth, hydrology, and degree of isolation. The adjacent Arctic Ocean areas include the northern Bering and southern Chukchi Seas of the Arctic Oce...

Video and image data are regularly used in the field of benthic ecology to document biodiversity. However, their use is subject to a number of challenges, principally the identification of taxa within the images without associated physical specimens. The challenge of applying traditional taxonomic keys to the identification of fauna from images has...

In 2010, the Conference of the Parties of the Convention on Biological Diversity agreed on the Strategic Plan for Biodiversity 2011-2020 in Aichi Prefecture, Japan. As this plan approaches its end, we discussed whether marine biodiversity and prediction studies were nearing the Aichi Targets during the 4th World Conference on Marine Biodiversity he...

Using this dataset, we examined the global geographical distributions of Solenidae species in relation to their endemicity, species richness and latitudinal ranges and then predicted their distributions under future climate change using species distribution modelling techniques (Saeedi et al. 2016a, Saeedi et al. 2016b). We found that the global la...

Geographic distribution of Solenidae and number of distribution point records (latitude and longitude) extracted from all databases.

A world dataset on geographic distributions of Solenidae

Datasets used in this study from GBIF and OBIS, 2012-2014

Literature list used to extract the distribution point records (latitude and longitude) of Solenidae species

Wood falls provide locally and temporally restricted inputs of organic material to the deep sea supporting heterotrophic and chemotrophic fauna. These habitats also play a significant role in the diversity, abundance, and evolution of deep-sea macrofauna. Despite the importance of wood falls to the global deep-sea biodiversity, there is a large gap...

Using this dataset we examined the global geographical distributions of Solenidae species in relation to their endemicity, species richness, and latitudinal ranges, and then predicted their distributions under future climate change using species distribution modeling techniques (Saeedi et al. 2016a, Saeedi et al. 2016b). We found that the global la...

Razor clams (Pharidae and Solenidae, Mollusca) are ecologically and economically important deep-burrowing bivalves. They are distributed in shallow waters of the tropical, subtropical, and temperate seas. The North-West and the Indo-West Pacific has the highest species richness (about 85% of all species) mostly in the Sea of Japan, China Sea, the G...

Brief on the Beneficial project, a project of bilateral collaboration between Russian (Russian Academy of Science) and German (Senckenberg research Institute and Goethe University) research institutes, with the aim to provide a comprehensive study of the biogeography and biodiversity of the NW Pacific area, through integration of data gathered from...

We report on a series of use cases underway to augment and test the viability of the global Ecological Marine Units (EMUs). EMUs were commissioned in 2015 by the Group on Earth Observations (GEO) as a means of developing a standardized and practical global ecosystems classification and map for the oceans. They are a key outcome for the GEO Biodiver...

Wood-falls are an abundant source of food to the deep-sea along continental margins that host high species diversity and specialized food webs. The colonization and degradation of wood-falls by specialist and generalist infauna has been increasingly recognized as an important factor affecting alpha and beta diversity in the deep-sea. Here we descri...

Our first data mining and mobilization attempt for the NW Pacific deep-sea benthos (Biogeography of the NW Pacific deep-sea fauna and their possible future invasions into the Arctic Ocean, Beneficial Project) has been successfully published in OBIS in April 2018.

To better understand the species latitudinal and depth gradients in the NW Pacific and its adjacent Arctic Ocean, distribution records of all marine species were extracted from the Ocean Biogeographic Information System (OBIS) and Global Biodiversity Information Facility (GBIF), merged, cleaned, and taxonomically cross-matched with the World Regist...

To better understand the species latitudinal and depth gradients in the NW Pacific and its adjacent Arctic Ocean, distribution records of all marine species were extracted from the Ocean Biogeographic Information System (OBIS) and Global Biodiversity Information Facility (GBIF), merged, cleaned, and taxonomically cross-matched with the World Regist...

Understanding biodiversity at local and regional requires a global context. This talk presents the global pattern of marine species richness and endemicity, including latitude and depth. We compare maps of marine species endemicity across all taxa (65,000 species), and particular taxa (razor clams, amphipods, polychaetes, seagrass, jellyfish, bryoz...

Understanding biodiversity at local and regional requires a global context. This talk presents the global pattern of marine species richness and endemicity, including latitude and depth. We compare maps of marine species endemicity across all taxa (65,000 species), and particular taxa (razor clams, amphipods, polychaetes, seagrass, jellyfish, bryoz...

Ocypodid crabs inhabit intertidal sandy/muddy flats of tropical and sub-tropical mangroves. Iran has three species of the genus Austruca. In contrast to A. sindensis and A. lactea, almost nothing is known about the population dynamics and its driving factors in Austruca iranica. Thus, population ecology and reproductive biology of A. iranica were s...

A history of the Marine Zoology Department at the Senckenberg Society for the Study of Nature (Senckenbergische Naturforschende Gesellschaft) has not yet been published. Still, there is no lack of documentation of research activities at the Senckenberg Research Institute and Natural History Museum. Marine zoology studies began with Eduard Rüppell (...

Our ongoing current project is about biogeography of the northwest Pacific fauna, a benchmark study for estimations of alien invasions into the Arctic Ocean in times of rapid climate change (beneficial). This project will deliver a sound biogeographic baseline study of the deep NW Pacific Ocean including our last expeditions data since 2010 from th...

Our review of the literature and available data on latitudinal gradients in marine species richness found that in all previous studies, and for a dataset of 65 000 species, they were bimodal, with a dip in richness immediately south of the Equator (−5° to −15°) [1]. This was the case for benthic and pelagic, vertebrate and invertebrate, and all spe...

Razor clams (Pharidae and Solenidae) are deep-burrowing bivalves that inhabit shallow waters of the tropical, subtropical, and temperate seas. Using ‘maximum entropy’, a species distribution modelling software, we predicted the most suitable environments for the entire family and 14 Solen species to indicate their present and future geographic dist...