Results 151 to 160 of about 69,368 (333)

Alone no more—Integrative taxonomy of New Zealand odd‐clawed spiders challenges the monotypy of Pianoa and Gradungula (Araneae: Gradungulidae)

open access: yesSystematic Entomology, Volume 51, Issue 1, January‐March 2026.
Taxonomic revision of New Zealand Gradungulidae reveals unexpected northern South Island diversity through integrated molecular phylogenetics and targeted field sampling. Two new species formally described — Gradungula kahurangi sp. nov. and Pianoa civis sp. nov. — with revised male genitalia diagnoses for all three New Zealand genera.
Peter Michalik   +6 more
wiley   +1 more source

The Influence of Eicosapentaenoic Acid on Macrobrachium rosenbergii Broodstock: Ovarian Development, Antioxidant Status, and Lipid Metabolism

open access: yesAquaculture Nutrition, Volume 2026, Issue 1, 2026.
Lipids are essential for crustacean reproduction, supporting broodstock growth and ovarian development. However, studies of n‐3 highly unsaturated fatty acids (HUFAs), particularly eicosapentaenoic acid (EPA), on the growth and ovarian development of prawn broodstock remain limited.
Yuxin Sun   +7 more
wiley   +1 more source

Use of Injectable Eugenol for Euthanasia and Anesthesia of American Lobsters (Homarus Americanus) and Similar Species [PDF]

open access: yes, 2012
Crustaceans are economically and ecologically significant, but current treatment and diagnostic protocols for crustacean health are limited. According to standards given by the American Veterinary Medical Association there are no current methods of ...
Huntsberger, Carlton
core   +1 more source

On the Fallacy of Color Discrimination: The Rise and Fall of a Rare and Endemic Box Crab (Brachyura: Calappidae)

open access: yesJournal of Zoological Systematics and Evolutionary Research, Volume 2026, Issue 1, 2026.
The Mediterranean Sea is one of the major reservoirs of marine biodiversity and harbors an exceptionally high number of endemic species. Nevertheless, the taxonomic status of many of these endemics still requires confirmation through integrative, modern approaches.
Valentina Tanduo   +5 more
wiley   +1 more source

Allometric growth pattern, sexual dimorphism and size at the onset of sexual maturity in Opusia indica (Brachyura: Ocypodoidea: Camptandriidae) from mangrove areas of Pakistan

open access: yesInternational Journal of Aquatic Biology, 2016
Size at sexual maturity and patterns of somatic growth are important aspects of reproductive history of crab. The main purpose of this study is to provide an estimate for the onset of morphological sexual maturity in mangrove crab, Opusia indica from a ...
Noor Us Saher   +2 more
doaj  

A review of the biology and management of horseshoe crabs, with emphasis on Florida populations [PDF]

open access: yes, 2007
In Florida, some horseshoe crabs are fished for eel bait, but they are fished principally by the marine-life industry, which collects the animals live for resale as aquarium, research, or educational specimens.
Gerhart, Susan D.
core  

Parasitic Fauna of Free‐Living Chelonoidis denticulatus From the Rio Acre Ecological Station and the Municipality of Cruzeiro do Sul, Western Amazon, Brazil

open access: yesVeterinary Medicine International, Volume 2026, Issue 1, 2026.
Tortoises, such as Chelonoidis denticulatus, are described as hosts of many parasites, such as helminths and ticks of the genus Amblyomma, which are important vectors of rickettsial infection in Brazil. Additionally, the high consumption of meat from these animals in Acre results in a high risk of zoonotic outbreaks due to contact with the hosts and ...
Ester Nascimento da Costa   +12 more
wiley   +1 more source

Burrow structure and distribution pattern of chestnut crab, Cardisoma carnifex (Herbst, 1796) around Parangipettai mangrove habitat, India [PDF]

open access: yesArthropods
This study aimed to investigate the structural characteristics of burrows and other hiding places for the chestnut crab, Cardisoma carnifex, from March 2021 to April 2022 in the Parangipettai mangrove habitat, Tamil Nadu, India.
P. Kaarmugilan, M. Thangaraj
doaj  

Comparison of Harvested and Nonharvested Painted Turtle Populations [PDF]

open access: yes, 2004
Painted turtles (Chrysemys picta) are commercially harvested in large numbers in Minnesota for sale to biological supply companies and the pet trade. We investigated the possible effects of this harvest by comparing size, demography, and catch rates of ...
Gamble, Tony, Simons, Andrew M.
core   +1 more source

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