Invertebrate

Stress produces negative judgement bias in cuttlefish

Judgement bias tasks (JBTs) are used to assess the emotional state and welfare of animals in zoos, farms and laboratories, based on the interpretation of an ambiguous or intermediate cue. Animals in positive affective states are more likely to interpret...

Year Published: 2024Topics: Emotion, Pain, & SentienceAnimal Type: Cephalopod, Invertebrate

Citation: Giancola-Detmering, S. E., Crook, R. J. 2024. Stress produces negative judgement bias in cuttlefish. Biology Letters 20(10), 20240228.

Effects of cold stress on the hemolymph of the Pacific white shrimp Penaeus vannamei

Temperature is an important factor in the physiological processes of aquatic organisms and can seriously affect several chemical and biological processes in their bodies, including respiratory metabolism, antioxidant capacity, immune capacity, and signal transduction. In this study, physiological, transcriptomic, and...

Year Published: 2024Topics: Husbandry & ManagementAnimal Type: Crustacean, Invertebrate

Citation: Zhu, J., Shi, W., Zhao, R. et al. 2024. Effects of cold stress on the hemolymph of the Pacific white shrimp Penaeus vannamei. Fishes 9(1), 36.

Effect of larval handling on black soldier fly life history traits and bioconversion efficiency

In conclusion, the handling procedures used in the current study did not influence the life history traits of the black soldier fly. However, further studies are needed to evaluate if different experimental protocols on various scales, the colony strain or...

Year Published: 2024Topics: HandlingAnimal Type: Insect & Spider, Invertebrate

Citation: Loiotine, Z., Gasco, L., Biasato, I. et al. 2024. Effect of larval handling on black soldier fly life history traits and bioconversion efficiency. Frontiers in Veterinary Science 11.

The effects of caustic soda and benzocaine on directed grooming to the eyestalk in the glass prawn, Palaemon elegans, are consistent with the idea of pain in decapods

Acceptance of the possibility of pain in animals usually requires that various criteria are fulfilled. One such criterion is that a noxious stimulus or wound would elicit directed rubbing or grooming at the site of the stimulus. There is also...

Year Published: 2024Topics: Analgesia, Emotion, Pain, & SentienceAnimal Type: Crustacean, Invertebrate

Citation: Barr, S., Elwood, R. W. 2024. The effects of caustic soda and benzocaine on directed grooming to the eyestalk in the glass prawn, Palaemon elegans, are consistent with the idea of pain in decapods. Animals 14(3), 364.

Trade-offs between avoidance of noxious electric shock and avoidance of bright light in shore crabs are consistent with predictions of pain

The suggestion that decapod crustaceans might experience pain has been dismissed by some authors who claim decapods only respond to noxious stimuli by nociceptive reflexes. Because reflexes do not require complex neuronal processing, but pain does, demonstrating reflex responses to...

Year Published: 2024Topics: Emotion, Pain, & SentienceAnimal Type: Crustacean, Invertebrate

Citation: Barr, S., Elwood, R. W. 2024. Trade-offs between avoidance of noxious electric shock and avoidance of bright light in shore crabs are consistent with predictions of pain. Animals 14(5), 770.

Anesthesia and humane euthanasia methods for king worm larvae (Zophobas morio)

A growing spotlight on insect welfare as research subjects, fodder for vertebrate animals, and patients for veterinarians highlights the need to establish humane euthanasia methods for these species. An insect of increasing commercial importance is the king worm (Zophobas morio),...

Year Published: 2024Topics: Anesthesia & Sedation, EuthanasiaAnimal Type: Invertebrate, Other Invertebrate

Citation: Lum, A. M., Keller, K. A. 2024. Anesthesia and humane euthanasia methods for king worm larvae (Zophobas morio). Zoo Biology 43(2), 164–168.

Metabolic and behavioural effects of hermit crab shell removal techniques: Is heating less invasive than cracking?

Hermit crabs (Paguroidea; Latreille 1802) offer great opportunities to study animal behaviour and physiology. However, the animals' size and sex cannot be determined when they are inside their shell; information crucial to many experimental designs. Here, we tested the effects...

Year Published: 2023Topics: Body Modification/Mutilation, Handling, Husbandry & ManagementAnimal Type: Crustacean, Invertebrate

Citation: Burciaga, L. M., Alcaraz, G. 2023. Metabolic and behavioural effects of hermit crab shell removal techniques: Is heating less invasive than cracking? Animal Welfare 32, e24.

General and species-specific recommendations for minimal requirements for the use of cephalopods in scientific research

Here we list species-specific recommendations for housing, care and management of cephalopod molluscs employed for research purposes with the aim of contributing to the standardization of minimum requirements for establishments, care and accommodation of these animals in compliance with the...

Year Published: 2023Topics: HousingAnimal Type: Cephalopod, Invertebrate

Citation: Ponte, G., Roumbedakis, K., Galligioni, V. et al. 2023. General and species-specific recommendations for minimal requirements for the use of cephalopods in scientific research. Laboratory Animals 57(1), 26–39.

Food-related substrate preference in juveniles seastar Echinaster (Othilia) brasiliensis (Müller & Troschel,1842) in captivity

There are only a few studies that describe the larval development of Echinaster or aspects on culture systems for the genus. For starfishes, the choice of suitable substrates has received special attention since it could influence the acid–base balance of...

Year Published: 2023Topics: Husbandry & ManagementAnimal Type: Invertebrate, Other Invertebrate

Citation: Maganhe, B. L., Andrade, L. S., Camilo, L. de O. et al. 2023. Food-related substrate preference in juveniles seastar Echinaster (Othilia) brasiliensis (Müller & Troschel,1842) in captivity. Zoo Biology 42(5), 675–682.

Limited holding space reduces growth and behavioural performance in juvenile European lobsters

Conservation aquaculture offers important tools to secure sustainable animal supplies for human use. However, intensive aquaculture practices are increasingly raising concerns about the welfare conditions of farmed animals, which typically face high mortality rates due to diseases, cannibalism, and aggression....

Year Published: 2023Topics: HousingAnimal Type: Crustacean, Invertebrate

Citation: Latini, L., Nascetti, G., Grignani, G. et al. 2023. Limited holding space reduces growth and behavioural performance in juvenile European lobsters. Applied Animal Behaviour Science 266, 106013.