Congresso Brasileiro Sobre Crustáceos (CBC)
The Crustacean Society (TCS) Summer Meeting

THEME

Tradition and Innovation:
Integrative Approaches to Crustacean Studies

SYMPOSIa

The fascinating taxon Aegla is only distributed in six South American countries (Brazil, Chile, Argentina, Uruguay, Paraguay & Bolivia), and so has mostly been studied by Portuguese and Spanish speaking researchers. The joint CBC.TCS.2022 meeting is the perfect opportunity for communication between these Latin and South American scientists and the rest of the international community. The symposium organizers also think that international scientific congresses, like the joint CBC.TCS.2022 meeting, should be an important venue for young students and researchers or early career scientists to participate and share their knowledge.

Duration: 2 hours.

The crustacean fisheries make up an important percentage to the global fishery market and play a key role on the ecosystems where they are found. Additionally, these fisheries have been considered as one of the most impacting activities to marine ecosystems, producing large amounts of discards and severe damage to benthic fauna. Additionally, most of the catch is originated from trawling fisheries with large oil burning engines. In order to deal with the ecosystem impacts caused by crustacean fisheries is vital to understand the role of crustaceans in trophic webs, as well as to identify the collateral damages of this practices and eventually to develop new technologies to reduce it. Among the possible solutions for mitigating the damage originated from shrimp fisheries, the adoption of Bycatch Reduction Devices (BRD’s) has been widely adopted.

Duration: 2 hours.

Globally, the subterranean fauna is dominated by arthropods, and not surprisingly, crustaceans in the classes Maxillopoda, Ostracoda, and especially Malacostraca make up the bulk of the aquatic subterranean fauna. For example, the Eurasian amphipod genus Niphargus consists of over 300 species, and the predominantly North American amphipod genus Stygobromus consists of over 150 species, although no surface species is known for either genus. Knowledge of the ecology of the surface taxa is crucial for understanding the factors contributing to the initial colonization of the subterranean water. Some crustacean taxa in South America and especially in Brazil consists of multiple surface and subterranean species, such as amphipods in the genus Hyalella and decapods in the genus Aegla, among others. The goal of this symposium is to bring together researchers who study the biology of surface or subterranean crustaceans or both to explore commonalities or specific differences among taxonomic groups that may shed light on forces contributing to the colonization of subterranean habitats and the evolutionary dynamics of these taxa in subterranean environments.

Duration: 4 hours.

Freshwater crayfish (Decapoda: Astacidea) encompass almost 700 species distributed worldwide, except in continental Africa and Antarctica. They can be found in several kinds of limnetic habitats, such as streams, lakes, wetlands, swamp forests and caves. In South American, several new endemic species have been discovered and described in the last years using traditional morphology and integrative taxonomy and also the development of behavioral and genetic studies. The advance of integrative studies of South American crayfish will contribute in the study of evolution of freshwater crayfish in the world. However, in this situation, the presence of alien crayfish in South America, especially in Brazil, brings new serious threaten for conservation of the native biodiversity and ecosystems. Present symposium will bring the newest information of integrative studies of Parastacidae in South America, taking into account systematics, population genetics, biogeography, distribution modelling, behavior, habitat characterization, conservation and alien crayfish species. This symposium will reveal all research developed with crayfish in South America and encourage new students to work in the field of Astacology.

Duration: 8 hours.

The proposed symposium ̈ Amphipods as models in multidisciplinary studies "consists of lectures compatible with the general theme of the event, which is" Tradition and Innovation: Integrative Approaches for the Study of Crustaceans "in view of addressing topics that can be included Taxonomy and Phylogeny; Ecology and Biodiversity; Genetics and Conservation and Physiology and Toxicology. The themes were chosen due to the large number of current works on this group, widely distributed not only in Brazil but abroad.

Duration: 2 hours.

Decapod crustaceans show a remarkable diversity with regard to their reproductive strategies and the underlying anatomical structures. Thus, characters of decapod reproductive systems have always played an important role in resolving phylogenetic relationships within this group. The male copulatory systems that function in delivering sperm to the female can provide important taxonomic characters for the identification of species. However, especially gonopods often show structural and functional adaptations that are characteristic for certain higher-level taxa of decapods, and strongly correspond to the female structures that receive sperm. Within decapods, two very important reproductive traits have evolved in the female reproductive system. The first trait is sperm storage in specialized female structures. Sperm storage of any kind enables to uncouple the point in time of insemination (at mating) and the actual fertilization of ova (at spawning). While a range of decapod crustacean females have evolved sperm storage structures (e.g., Cambaridae, Nephropidae, Brachyura), a mode of internal fertilization has only evolved in Eubrachyura.
This main goal of this symposium is to compare the diverse modes of sperm transfer and storage among different groups of decapod crustaceans, and discuss the phylogenetic implications of the observed character states. Contributions on the reproductive systems of isopods are welcome as well, as they represent the only other group of crustaceans that exhibit sperm storage in specialized female structures and show a range of convergencies to decapods.

Duration: 4 hours.

This symposium highlights the power of integrative approaches in understanding crustaceans. Speakers will present work using comparative and model systems approaches and techniques from molecular, systems, and behavioral biology to address larger issues relevant to crustacean biologists and beyond. The topics will be diverse, and speakers will be encouraged to present their work in the broadest context possible. The symposium intends to emphasize diversity – not only biological diversity (crustacean taxa) but also speaker diversity (gender, career level, etc.).

Duration: 2 hours.

Continuous swimming might enhance fitness because it makes finding a mate more likely. However, continuous swimming might also increase the likelihood of being spotted by a predator. Similarly, inhabiting burrows might protect the individual for the harshness of the outside environment. However, the individual might have to defend its’ burrow from competitors, thereby raising costs. These constant trade-offs between costs and benefits shape the behaviors and morphologies. Our goal with this symposium is to show examples of how behavioral ecology and evolutionary ecology might help us understand the diversity and the evolution of crustaceans. To do so, we will provide examples on: 1. How camouflage and color enhance survival in crustaceans, 2. How finding a mate may facilitate the evolution of extravagant behaviors and morphologies, 3. How fighting influences the evolution of claws. During our talks we will show how theory can be used to make broader inferences about evolution, while also demonstrating how such inferences helps us understanding the evolution of crustaceans.

Duration: 2 hours.

One of the last frontiers of human knowledge, the deep sea is an amazing and challenging environment. With temperatures around four degrees Celsius, extreme pressure, no sunlight and scarce feeding resources, it was once imagined as a homogeneous environment, almost without life. However, it proved to be highly variable, with many kinds of habitats such as mountains chains, trenches, abyssal plains, thermal vents, cold seeps, coral reefs and sponge gardens. A wide variety of life forms are living in these habitats, between them the crustaceans are one of the most diverse and abundant groups. Modern sampling and research techniques as remotely operated vehicles and molecular biology are allowing us to learn much more about the deep-sea Crustaceans. This symposium will cover aspects of diversity and evolution of crustaceans living in the deep sea, including systematic and genetic approaches. Come with us to discover more about this last frontier!

Duration: 2 hours.

Ecotoxicology is a field of science involving the investigation of the effects of pollutants on organisms and ecosystems. Historically, many studies of aquatic toxicology have been done with crustaceans, because of their ecological relevance, economic importance and sensitivity. This symposium will focus on the use of crustaceans as model organisms in aquatic toxicology, and will include discussions on their historical role as test-organisms use in standardized toxicity tests, their use as models in studies involving molecular, physiological, biochemical histopathological, behavioral effects (biomarkers). The main idea is to provide an overview of the use of crustaceans in aquatic toxicology, as well as discuss perspectives to the future.

Congresso Brasileiro Sobre Crustáceos (CBC) The Crustacean Society (TCS) Summer Meeting

THEME

Tradition and Innovation: Integrative Approaches to Crustacean Studies

SYMPOSIa

S1: To Encourage Study on the Systematics and Biology of Aegla

Part I: Taxonomy, Phylogenetics, Diversity and Distribution

COORDINATOR

Sérgio Bueno

COORDINATOR

Tadashi Kawai

Taxonomy and Phylogenetics of extant aeglids

Sandro Santos

Spermiotaxonomy

Milena Wolf

Diversity and distribution of aeglids in Brazil

Gustavo Teixeira

Part II: Reproduction, Physiology and Populational Studies

COORDINATOR

Milena Wolf

COORDINATOR

Christopher Tudge

Latitudinal Gradient and Reproductive Pattern in Decapods, with Emphasis on Aeglids

Antonio Castilho

Physiological Ecology

John McNamara

Population size estimation

Sérgio Bueno

ROUND TABLE: “New challenges in aeglid conservation”

COORDINATOR

Sandro Santos

COORDINATOR

Laura Lopez-Greco

Conservation status of aeglids from Brazil

Harry Boos

Conservation status of aeglids from Argentina

Veronica Williner

Conservation status of aeglids from Chile

Carlos G. Jara

S2: Ecosystem Impacts of Shrimp Fisheries: Identifying the Main Problems and Possible Solutions

COORDINATOR

Ecological impacts of shrimp fisheries: lessons from Patos Lagoon Estuary

Luiz Felipe Dumont

Shrimp Fisheries and Climate Change

Karina Annes Keunecke

Bycatch from shrimps fisheries: a cryptic and vital resource to underpin ecosystem management actions in Brazil

Jorge Luiz Rodrigues

CAN CLIMATE CHANGE REDUCE SHRIMP CAPTURE IN BRAZIL?

Fúlvio Aurélio de Morais Freire

S3: Ecology and Diversity of Subterranean Crustaceans: from Surface to Underground

COORDINATOR

What Do We Know About Subterranean Crustaceans In South America? Shortfalls And Threats

Maria Elina Bichuette

An overview of cave Hyalellidae

Ludmila Rocha Penoni

Brazilian Subterranean Isopods

Giovanna Monticelli Cardoso

The Use of the Molecular Tool in Terrestrial Isopods (Oniscidea): An Approach into Cave Fauna

Dr. Ivanklin Soares Campos Filho (University of Cyprus, Republic of Cyprus)

S4: Integrative Studies of Freshwater Crayfish in South America

COORDINATOR

Tadashi Kawai

COORDINATOR

Integrative taxonomy and cryptic diversity in Parastacidae: history, development and future trends

Felipe Ribeiro

An overview of the freshwater decapod crustacean fauna of South America

Célio Magalhães

Double trouble: astaciculture and pet trade as vectors for the introduction of exotic freshwater crayfish in South America

Tainã Gonçalves Loureiro

Systematics and population genomics of the burrowing crayfish Parastacus nicoleti in Southern Chile

Luis Amador

Habitat diversity and conservation of freshwater crayfish in Brazil: an approach based on current distribution and future predictions

Kelly Gomes

Freshwater crayfish in Brazilian Protected Areas: conservation, diversity and threats

Augusto Huber

S5: Amphipods as Models in Multidisciplinary Studies

COORDINATOR

Amphipods as models in multidisciplinary studies

Fosca Pedini Pereira Leite

Amphipods: applications and future opportunities

Jose Manuel Guerra García

Congresso Brasileiro Sobre Crustáceos (CBC)
The Crustacean Society (TCS) Summer Meeting

Tradition and Innovation:
Integrative Approaches to Crustacean Studies

ROUND TABLE:
“New challenges in aeglid conservation”

ROUND TABLE:
“Contribution to increasing knowledge of the evolution and phylogeny
of amphipods in Brazil and future perspectives”

ROUND TABLE:
“Amphipods as Ecological Models“