Invertebrate

Chemosensory-driven foraging and nocturnal activity in the freshwater snail rivomarginella morrisoni (Gastropoda marginellidae): A laboratory-based study

Rivomarginella morrisoni is a freshwater snail endemic to Thailand, yet its behavioral ecology remains poorly understood. This study described the feeding behavior of R. morrisoni, focusing on its foraging activity, behavioral patterns, and food detection mechanisms under laboratory conditions using...

Year Published: 2025Topics: Natural BehaviorAnimal Type: Invertebrate, Other Invertebrate

Citation: Subpayakom, N., Dumrongrojwattana, P., Poeaim, S. 2025. Chemosensory-driven foraging and nocturnal activity in the freshwater snail rivomarginella morrisoni (Gastropoda marginellidae): A laboratory-based study. Journal of Zoological and Botanical Gardens 6(4).

Nutritional insights into octopus diets in aquaria

Common octopus Octopus vulgaris are a popular exhibit in aquaria; however, there is limited research on the nutritional requirements of this species. The current information available is from the aquaculture industry and thus focused on young individuals and maximising growth...

Year Published: 2026Topics: Husbandry & ManagementAnimal Type: Cephalopod, Invertebrate

Citation: Hunt, K., Freeman, M., Chamberlain, C. et al. 2026. Nutritional insights into octopus diets in aquaria. Journal of Zoo and Aquarium Research 14(1), 25–30.

Impact of different stocking densities on growth performance, welfare and physiology of Litopenaeus vannamei in RAS

Optimal stocking density allows shrimp farmers to maximise profit while maintaining animal welfare. To date, holistic assessments of chronic crowding stress effect on Litopenaeus vannamei are lacking regarding biological impairments, stress-related behaviors, and recovery capacity. Twelve tanks of a recirculation...

Year Published: 2026Topics: Stocking DensityAnimal Type: Crustacean, Invertebrate

Citation: Gamberoni, P., Bögner, M., Kreuz, E. et al. 2026. Impact of different stocking densities on growth performance, welfare and physiology of Litopenaeus vannamei in RAS. Scientific Reports 16(1), 9087.

Euthanasia methods in invertebrates: A critical narrative review of methodological and welfare standards

Invertebrates are increasingly consumed and kept as pets, research models, and in zoological exhibits, creating a growing need to better understand their clinical management and welfare. However, the knowledge regarding nociception, pain perception, and euthanasia in invertebrates remains limited, and...

Year Published: 2026Topics: EuthanasiaAnimal Type: Cephalopod, Crustacean, Insect & Spider, Invertebrate, Other Invertebrate

Citation: Bakker, J., Garza, M. A. de la, Morel, M. et al. 2026. Euthanasia methods in invertebrates: A critical narrative review of methodological and welfare standards. Animals 16(2).

Do arthropods respond to noxious stimuli purely by reflex?

Mikhalevich & Powell (2020) argue that it is wrong to dismiss the idea of sentience in invertebrates. Here, I expand on the evidence for crustaceans responding to noxious stimuli in ways that are not explained by mere reflexes, and that...

Year Published: 2020Topics: Emotion, Pain, & SentienceAnimal Type: Crustacean, Invertebrate

Citation: Elwood, R. W. 2020. Do arthropods respond to noxious stimuli purely by reflex? Animal Sentience 29(10).

Changing priorities about protective shelters: A review of a key method to investigate possible pain in crustaceans

Testing if non-human taxa experience pain is difficult because we need to exclude the possibility that responses are nociceptive reflexes. One approach is to identify an essential, high priority, resource and then ask if the animal will abandon and subsequently...

Year Published: 2025Topics: Emotion, Pain, & SentienceAnimal Type: Crustacean, Invertebrate

Citation: Elwood, R. W. 2025. Changing priorities about protective shelters: A review of a key method to investigate possible pain in crustaceans. Biology Letters 21(9), 20250342.

Identifying trends in reporting on the ethical treatment of insects in research

Transparent reporting on the ethical treatment of research animals (e.g., implementation of the 3Rs, replace, reduce, and refine) is recommended when publishing in peer-reviewed literature. This is meant to foster public trust, safeguard animal welfare, and generate reproducible science. However,...

Year Published: 2025Topics: Regulations & Ethical ReviewAnimal Type: Insect & Spider, Invertebrate

Citation: Perl, C. D., Kissinger, C., Godfrey, R. K. et al. 2025. Identifying trends in reporting on the ethical treatment of insects in research. PLOS ONE 20(8), e0328931.

Evidence of play behavior in captive California two-spot octopuses, Octopus bimaculoides

Play is considered to be an essential part of development that supports learning, memory, and the development of flexible behavioral strategies. It may also serve as an informative factor in assessing an animal’s welfare state and in improving care and...

Year Published: 2025Topics: Natural BehaviorAnimal Type: Cephalopod, Invertebrate

Citation: Jarmoluk, K., Pelled, G. 2025. Evidence of play behavior in captive California two-spot octopuses, Octopus bimaculoides. PLOS ONE 20(7), e0326379.

Assessing the welfare of spiny lobsters and true lobsters in aquaria: Biology-informed best-practice guidelines for captive conditions

The welfare of decapod crustaceans held in captivity, whether in aquariums, holding facilities, seafood restaurants, supermarkets, or fishmongers, is attracting growing attention and concern. This review focuses on three species that are commonly found in European commercial environments: the European...

Year Published: 2025Topics: Body Modification/Mutilation, Husbandry & Management, Stocking DensityAnimal Type: Crustacean, Invertebrate

Citation: Fruscella, L., Elwood, R. W., Passantino, A. 2025. Assessing the welfare of spiny lobsters and true lobsters in aquaria: Biology-informed best-practice guidelines for captive conditions. Animals 15(16), 2397.

Effects of light colour and intensity on stress responses in the Pacific white shrimp (Penaeus vannamei).

Stress is a natural defence mechanism that can negatively impact the outcome of experiments and increase interindividual variability. Among environmental parameters, light colour and intensity are known to impact stress responses in numerous species. The Pacific white shrimp Penaeus vannamei...

Year Published: 2025Topics: Husbandry & ManagementAnimal Type: Crustacean, Invertebrate

Citation: Pichon, C., Kersante, P., Le Reste, G. et al. 2025. Effects of light colour and intensity on stress responses in the Pacific white shrimp (Penaeus vannamei). Applied Animal Behaviour Science 289, 106694.